diff options
Diffstat (limited to 'third_party/git/git-cvsserver.perl')
| -rwxr-xr-x | third_party/git/git-cvsserver.perl | 5105 |
1 files changed, 0 insertions, 5105 deletions
diff --git a/third_party/git/git-cvsserver.perl b/third_party/git/git-cvsserver.perl deleted file mode 100755 index ae1044273d..0000000000 --- a/third_party/git/git-cvsserver.perl +++ /dev/null @@ -1,5105 +0,0 @@ -#!/usr/bin/perl - -#### -#### This application is a CVS emulation layer for git. -#### It is intended for clients to connect over SSH. -#### See the documentation for more details. -#### -#### Copyright The Open University UK - 2006. -#### -#### Authors: Martyn Smith <martyn@catalyst.net.nz> -#### Martin Langhoff <martin@laptop.org> -#### -#### -#### Released under the GNU Public License, version 2. -#### -#### - -use 5.008; -use strict; -use warnings; -use bytes; - -use Fcntl; -use File::Temp qw/tempdir tempfile/; -use File::Path qw/rmtree/; -use File::Basename; -use Getopt::Long qw(:config require_order no_ignore_case); - -my $VERSION = '@@GIT_VERSION@@'; - -my $log = GITCVS::log->new(); -my $cfg; - -my $DATE_LIST = { - Jan => "01", - Feb => "02", - Mar => "03", - Apr => "04", - May => "05", - Jun => "06", - Jul => "07", - Aug => "08", - Sep => "09", - Oct => "10", - Nov => "11", - Dec => "12", -}; - -# Enable autoflush for STDOUT (otherwise the whole thing falls apart) -$| = 1; - -#### Definition and mappings of functions #### - -# NOTE: Despite the existence of req_CATCHALL and req_EMPTY unimplemented -# requests, this list is incomplete. It is missing many rarer/optional -# requests. Perhaps some clients require a claim of support for -# these specific requests for main functionality to work? -my $methods = { - 'Root' => \&req_Root, - 'Valid-responses' => \&req_Validresponses, - 'valid-requests' => \&req_validrequests, - 'Directory' => \&req_Directory, - 'Sticky' => \&req_Sticky, - 'Entry' => \&req_Entry, - 'Modified' => \&req_Modified, - 'Unchanged' => \&req_Unchanged, - 'Questionable' => \&req_Questionable, - 'Argument' => \&req_Argument, - 'Argumentx' => \&req_Argument, - 'expand-modules' => \&req_expandmodules, - 'add' => \&req_add, - 'remove' => \&req_remove, - 'co' => \&req_co, - 'update' => \&req_update, - 'ci' => \&req_ci, - 'diff' => \&req_diff, - 'log' => \&req_log, - 'rlog' => \&req_log, - 'tag' => \&req_CATCHALL, - 'status' => \&req_status, - 'admin' => \&req_CATCHALL, - 'history' => \&req_CATCHALL, - 'watchers' => \&req_EMPTY, - 'editors' => \&req_EMPTY, - 'noop' => \&req_EMPTY, - 'annotate' => \&req_annotate, - 'Global_option' => \&req_Globaloption, -}; - -############################################## - - -# $state holds all the bits of information the clients sends us that could -# potentially be useful when it comes to actually _doing_ something. -my $state = { prependdir => '' }; - -# Work is for managing temporary working directory -my $work = - { - state => undef, # undef, 1 (empty), 2 (with stuff) - workDir => undef, - index => undef, - emptyDir => undef, - tmpDir => undef - }; - -$log->info("--------------- STARTING -----------------"); - -my $usage = - "usage: git cvsserver [options] [pserver|server] [<directory> ...]\n". - " --base-path <path> : Prepend to requested CVSROOT\n". - " Can be read from GIT_CVSSERVER_BASE_PATH\n". - " --strict-paths : Don't allow recursing into subdirectories\n". - " --export-all : Don't check for gitcvs.enabled in config\n". - " --version, -V : Print version information and exit\n". - " -h, -H : Print usage information and exit\n". - "\n". - "<directory> ... is a list of allowed directories. If no directories\n". - "are given, all are allowed. This is an additional restriction, gitcvs\n". - "access still needs to be enabled by the gitcvs.enabled config option.\n". - "Alternately, one directory may be specified in GIT_CVSSERVER_ROOT.\n"; - -my @opts = ( 'h|H', 'version|V', - 'base-path=s', 'strict-paths', 'export-all' ); -GetOptions( $state, @opts ) - or die $usage; - -if ($state->{version}) { - print "git-cvsserver version $VERSION\n"; - exit; -} -if ($state->{help}) { - print $usage; - exit; -} - -my $TEMP_DIR = tempdir( CLEANUP => 1 ); -$log->debug("Temporary directory is '$TEMP_DIR'"); - -$state->{method} = 'ext'; -if (@ARGV) { - if ($ARGV[0] eq 'pserver') { - $state->{method} = 'pserver'; - shift @ARGV; - } elsif ($ARGV[0] eq 'server') { - shift @ARGV; - } -} - -# everything else is a directory -$state->{allowed_roots} = [ @ARGV ]; - -# don't export the whole system unless the users requests it -if ($state->{'export-all'} && !@{$state->{allowed_roots}}) { - die "--export-all can only be used together with an explicit whitelist\n"; -} - -# Environment handling for running under git-shell -if (exists $ENV{GIT_CVSSERVER_BASE_PATH}) { - if ($state->{'base-path'}) { - die "Cannot specify base path both ways.\n"; - } - my $base_path = $ENV{GIT_CVSSERVER_BASE_PATH}; - $state->{'base-path'} = $base_path; - $log->debug("Picked up base path '$base_path' from environment.\n"); -} -if (exists $ENV{GIT_CVSSERVER_ROOT}) { - if (@{$state->{allowed_roots}}) { - die "Cannot specify roots both ways: @ARGV\n"; - } - my $allowed_root = $ENV{GIT_CVSSERVER_ROOT}; - $state->{allowed_roots} = [ $allowed_root ]; - $log->debug("Picked up allowed root '$allowed_root' from environment.\n"); -} - -# if we are called with a pserver argument, -# deal with the authentication cat before entering the -# main loop -if ($state->{method} eq 'pserver') { - my $line = <STDIN>; chomp $line; - unless( $line =~ /^BEGIN (AUTH|VERIFICATION) REQUEST$/) { - die "E Do not understand $line - expecting BEGIN AUTH REQUEST\n"; - } - my $request = $1; - $line = <STDIN>; chomp $line; - unless (req_Root('root', $line)) { # reuse Root - print "E Invalid root $line \n"; - exit 1; - } - $line = <STDIN>; chomp $line; - my $user = $line; - $line = <STDIN>; chomp $line; - my $password = $line; - - if ($user eq 'anonymous') { - # "A" will be 1 byte, use length instead in case the - # encryption method ever changes (yeah, right!) - if (length($password) > 1 ) { - print "E Don't supply a password for the `anonymous' user\n"; - print "I HATE YOU\n"; - exit 1; - } - - # Fall through to LOVE - } else { - # Trying to authenticate a user - if (not exists $cfg->{gitcvs}->{authdb}) { - print "E the repo config file needs a [gitcvs] section with an 'authdb' parameter set to the filename of the authentication database\n"; - print "I HATE YOU\n"; - exit 1; - } - - my $authdb = $cfg->{gitcvs}->{authdb}; - - unless (-e $authdb) { - print "E The authentication database specified in [gitcvs.authdb] does not exist\n"; - print "I HATE YOU\n"; - exit 1; - } - - my $auth_ok; - open my $passwd, "<", $authdb or die $!; - while (<$passwd>) { - if (m{^\Q$user\E:(.*)}) { - if (crypt($user, descramble($password)) eq $1) { - $auth_ok = 1; - } - }; - } - close $passwd; - - unless ($auth_ok) { - print "I HATE YOU\n"; - exit 1; - } - - # Fall through to LOVE - } - - # For checking whether the user is anonymous on commit - $state->{user} = $user; - - $line = <STDIN>; chomp $line; - unless ($line eq "END $request REQUEST") { - die "E Do not understand $line -- expecting END $request REQUEST\n"; - } - print "I LOVE YOU\n"; - exit if $request eq 'VERIFICATION'; # cvs login - # and now back to our regular programme... -} - -# Keep going until the client closes the connection -while (<STDIN>) -{ - chomp; - - # Check to see if we've seen this method, and call appropriate function. - if ( /^([\w-]+)(?:\s+(.*))?$/ and defined($methods->{$1}) ) - { - # use the $methods hash to call the appropriate sub for this command - #$log->info("Method : $1"); - &{$methods->{$1}}($1,$2); - } else { - # log fatal because we don't understand this function. If this happens - # we're fairly screwed because we don't know if the client is expecting - # a response. If it is, the client will hang, we'll hang, and the whole - # thing will be custard. - $log->fatal("Don't understand command $_\n"); - die("Unknown command $_"); - } -} - -$log->debug("Processing time : user=" . (times)[0] . " system=" . (times)[1]); -$log->info("--------------- FINISH -----------------"); - -chdir '/'; -exit 0; - -# Magic catchall method. -# This is the method that will handle all commands we haven't yet -# implemented. It simply sends a warning to the log file indicating a -# command that hasn't been implemented has been invoked. -sub req_CATCHALL -{ - my ( $cmd, $data ) = @_; - $log->warn("Unhandled command : req_$cmd : $data"); -} - -# This method invariably succeeds with an empty response. -sub req_EMPTY -{ - print "ok\n"; -} - -# Root pathname \n -# Response expected: no. Tell the server which CVSROOT to use. Note that -# pathname is a local directory and not a fully qualified CVSROOT variable. -# pathname must already exist; if creating a new root, use the init -# request, not Root. pathname does not include the hostname of the server, -# how to access the server, etc.; by the time the CVS protocol is in use, -# connection, authentication, etc., are already taken care of. The Root -# request must be sent only once, and it must be sent before any requests -# other than Valid-responses, valid-requests, UseUnchanged, Set or init. -sub req_Root -{ - my ( $cmd, $data ) = @_; - $log->debug("req_Root : $data"); - - unless ($data =~ m#^/#) { - print "error 1 Root must be an absolute pathname\n"; - return 0; - } - - my $cvsroot = $state->{'base-path'} || ''; - $cvsroot =~ s#/+$##; - $cvsroot .= $data; - - if ($state->{CVSROOT} - && ($state->{CVSROOT} ne $cvsroot)) { - print "error 1 Conflicting roots specified\n"; - return 0; - } - - $state->{CVSROOT} = $cvsroot; - - $ENV{GIT_DIR} = $state->{CVSROOT} . "/"; - - if (@{$state->{allowed_roots}}) { - my $allowed = 0; - foreach my $dir (@{$state->{allowed_roots}}) { - next unless $dir =~ m#^/#; - $dir =~ s#/+$##; - if ($state->{'strict-paths'}) { - if ($ENV{GIT_DIR} =~ m#^\Q$dir\E/?$#) { - $allowed = 1; - last; - } - } elsif ($ENV{GIT_DIR} =~ m#^\Q$dir\E(/?$|/)#) { - $allowed = 1; - last; - } - } - - unless ($allowed) { - print "E $ENV{GIT_DIR} does not seem to be a valid GIT repository\n"; - print "E \n"; - print "error 1 $ENV{GIT_DIR} is not a valid repository\n"; - return 0; - } - } - - unless (-d $ENV{GIT_DIR} && -e $ENV{GIT_DIR}.'HEAD') { - print "E $ENV{GIT_DIR} does not seem to be a valid GIT repository\n"; - print "E \n"; - print "error 1 $ENV{GIT_DIR} is not a valid repository\n"; - return 0; - } - - my @gitvars = safe_pipe_capture(qw(git config -l)); - if ($?) { - print "E problems executing git-config on the server -- this is not a git repository or the PATH is not set correctly.\n"; - print "E \n"; - print "error 1 - problem executing git-config\n"; - return 0; - } - foreach my $line ( @gitvars ) - { - next unless ( $line =~ /^(gitcvs)\.(?:(ext|pserver)\.)?([\w-]+)=(.*)$/ ); - unless ($2) { - $cfg->{$1}{$3} = $4; - } else { - $cfg->{$1}{$2}{$3} = $4; - } - } - - my $enabled = ($cfg->{gitcvs}{$state->{method}}{enabled} - || $cfg->{gitcvs}{enabled}); - unless ($state->{'export-all'} || - ($enabled && $enabled =~ /^\s*(1|true|yes)\s*$/i)) { - print "E GITCVS emulation needs to be enabled on this repo\n"; - print "E the repo config file needs a [gitcvs] section added, and the parameter 'enabled' set to 1\n"; - print "E \n"; - print "error 1 GITCVS emulation disabled\n"; - return 0; - } - - my $logfile = $cfg->{gitcvs}{$state->{method}}{logfile} || $cfg->{gitcvs}{logfile}; - if ( $logfile ) - { - $log->setfile($logfile); - } else { - $log->nofile(); - } - - return 1; -} - -# Global_option option \n -# Response expected: no. Transmit one of the global options `-q', `-Q', -# `-l', `-t', `-r', or `-n'. option must be one of those strings, no -# variations (such as combining of options) are allowed. For graceful -# handling of valid-requests, it is probably better to make new global -# options separate requests, rather than trying to add them to this -# request. -sub req_Globaloption -{ - my ( $cmd, $data ) = @_; - $log->debug("req_Globaloption : $data"); - $state->{globaloptions}{$data} = 1; -} - -# Valid-responses request-list \n -# Response expected: no. Tell the server what responses the client will -# accept. request-list is a space separated list of tokens. -sub req_Validresponses -{ - my ( $cmd, $data ) = @_; - $log->debug("req_Validresponses : $data"); - - # TODO : re-enable this, currently it's not particularly useful - #$state->{validresponses} = [ split /\s+/, $data ]; -} - -# valid-requests \n -# Response expected: yes. Ask the server to send back a Valid-requests -# response. -sub req_validrequests -{ - my ( $cmd, $data ) = @_; - - $log->debug("req_validrequests"); - - $log->debug("SEND : Valid-requests " . join(" ",sort keys %$methods)); - $log->debug("SEND : ok"); - - print "Valid-requests " . join(" ",sort keys %$methods) . "\n"; - print "ok\n"; -} - -# Directory local-directory \n -# Additional data: repository \n. Response expected: no. Tell the server -# what directory to use. The repository should be a directory name from a -# previous server response. Note that this both gives a default for Entry -# and Modified and also for ci and the other commands; normal usage is to -# send Directory for each directory in which there will be an Entry or -# Modified, and then a final Directory for the original directory, then the -# command. The local-directory is relative to the top level at which the -# command is occurring (i.e. the last Directory which is sent before the -# command); to indicate that top level, `.' should be sent for -# local-directory. -sub req_Directory -{ - my ( $cmd, $data ) = @_; - - my $repository = <STDIN>; - chomp $repository; - - - $state->{localdir} = $data; - $state->{repository} = $repository; - $state->{path} = $repository; - $state->{path} =~ s/^\Q$state->{CVSROOT}\E\///; - $state->{module} = $1 if ($state->{path} =~ s/^(.*?)(\/|$)//); - $state->{path} .= "/" if ( $state->{path} =~ /\S/ ); - - $state->{directory} = $state->{localdir}; - $state->{directory} = "" if ( $state->{directory} eq "." ); - $state->{directory} .= "/" if ( $state->{directory} =~ /\S/ ); - - if ( (not defined($state->{prependdir}) or $state->{prependdir} eq '') and $state->{localdir} eq "." and $state->{path} =~ /\S/ ) - { - $log->info("Setting prepend to '$state->{path}'"); - $state->{prependdir} = $state->{path}; - my %entries; - foreach my $entry ( keys %{$state->{entries}} ) - { - $entries{$state->{prependdir} . $entry} = $state->{entries}{$entry}; - } - $state->{entries}=\%entries; - - my %dirMap; - foreach my $dir ( keys %{$state->{dirMap}} ) - { - $dirMap{$state->{prependdir} . $dir} = $state->{dirMap}{$dir}; - } - $state->{dirMap}=\%dirMap; - } - - if ( defined ( $state->{prependdir} ) ) - { - $log->debug("Prepending '$state->{prependdir}' to state|directory"); - $state->{directory} = $state->{prependdir} . $state->{directory} - } - - if ( ! defined($state->{dirMap}{$state->{directory}}) ) - { - $state->{dirMap}{$state->{directory}} = - { - 'names' => {} - #'tagspec' => undef - }; - } - - $log->debug("req_Directory : localdir=$data repository=$repository path=$state->{path} directory=$state->{directory} module=$state->{module}"); -} - -# Sticky tagspec \n -# Response expected: no. Tell the server that the directory most -# recently specified with Directory has a sticky tag or date -# tagspec. The first character of tagspec is T for a tag, D for -# a date, or some other character supplied by a Set-sticky -# response from a previous request to the server. The remainder -# of tagspec contains the actual tag or date, again as supplied -# by Set-sticky. -# The server should remember Static-directory and Sticky requests -# for a particular directory; the client need not resend them each -# time it sends a Directory request for a given directory. However, -# the server is not obliged to remember them beyond the context -# of a single command. -sub req_Sticky -{ - my ( $cmd, $tagspec ) = @_; - - my ( $stickyInfo ); - if($tagspec eq "") - { - # nothing - } - elsif($tagspec=~/^T([^ ]+)\s*$/) - { - $stickyInfo = { 'tag' => $1 }; - } - elsif($tagspec=~/^D([0-9.]+)\s*$/) - { - $stickyInfo= { 'date' => $1 }; - } - else - { - die "Unknown tag_or_date format\n"; - } - $state->{dirMap}{$state->{directory}}{stickyInfo}=$stickyInfo; - - $log->debug("req_Sticky : tagspec=$tagspec repository=$state->{repository}" - . " path=$state->{path} directory=$state->{directory}" - . " module=$state->{module}"); -} - -# Entry entry-line \n -# Response expected: no. Tell the server what version of a file is on the -# local machine. The name in entry-line is a name relative to the directory -# most recently specified with Directory. If the user is operating on only -# some files in a directory, Entry requests for only those files need be -# included. If an Entry request is sent without Modified, Is-modified, or -# Unchanged, it means the file is lost (does not exist in the working -# directory). If both Entry and one of Modified, Is-modified, or Unchanged -# are sent for the same file, Entry must be sent first. For a given file, -# one can send Modified, Is-modified, or Unchanged, but not more than one -# of these three. -sub req_Entry -{ - my ( $cmd, $data ) = @_; - - #$log->debug("req_Entry : $data"); - - my @data = split(/\//, $data, -1); - - $state->{entries}{$state->{directory}.$data[1]} = { - revision => $data[2], - conflict => $data[3], - options => $data[4], - tag_or_date => $data[5], - }; - - $state->{dirMap}{$state->{directory}}{names}{$data[1]} = 'F'; - - $log->info("Received entry line '$data' => '" . $state->{directory} . $data[1] . "'"); -} - -# Questionable filename \n -# Response expected: no. Additional data: no. Tell the server to check -# whether filename should be ignored, and if not, next time the server -# sends responses, send (in a M response) `?' followed by the directory and -# filename. filename must not contain `/'; it needs to be a file in the -# directory named by the most recent Directory request. -sub req_Questionable -{ - my ( $cmd, $data ) = @_; - - $log->debug("req_Questionable : $data"); - $state->{entries}{$state->{directory}.$data}{questionable} = 1; -} - -# add \n -# Response expected: yes. Add a file or directory. This uses any previous -# Argument, Directory, Entry, or Modified requests, if they have been sent. -# The last Directory sent specifies the working directory at the time of -# the operation. To add a directory, send the directory to be added using -# Directory and Argument requests. -sub req_add -{ - my ( $cmd, $data ) = @_; - - argsplit("add"); - - my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); - $updater->update(); - - my $addcount = 0; - - foreach my $filename ( @{$state->{args}} ) - { - $filename = filecleanup($filename); - - # no -r, -A, or -D with add - my $stickyInfo = resolveStickyInfo($filename); - - my $meta = $updater->getmeta($filename,$stickyInfo); - my $wrev = revparse($filename); - - if ($wrev && $meta && ($wrev=~/^-/)) - { - # previously removed file, add back - $log->info("added file $filename was previously removed, send $meta->{revision}"); - - print "MT +updated\n"; - print "MT text U \n"; - print "MT fname $filename\n"; - print "MT newline\n"; - print "MT -updated\n"; - - unless ( $state->{globaloptions}{-n} ) - { - my ( $filepart, $dirpart ) = filenamesplit($filename,1); - - print "Created $dirpart\n"; - print $state->{CVSROOT} . "/$state->{module}/$filename\n"; - - # this is an "entries" line - my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - my $entryLine = "/$filepart/$meta->{revision}//$kopts/"; - $entryLine .= getStickyTagOrDate($stickyInfo); - $log->debug($entryLine); - print "$entryLine\n"; - # permissions - $log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}"); - print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n"; - # transmit file - transmitfile($meta->{filehash}); - } - - next; - } - - unless ( defined ( $state->{entries}{$filename}{modified_filename} ) ) - { - print "E cvs add: nothing known about `$filename'\n"; - next; - } - # TODO : check we're not squashing an already existing file - if ( defined ( $state->{entries}{$filename}{revision} ) ) - { - print "E cvs add: `$filename' has already been entered\n"; - next; - } - - my ( $filepart, $dirpart ) = filenamesplit($filename, 1); - - print "E cvs add: scheduling file `$filename' for addition\n"; - - print "Checked-in $dirpart\n"; - print "$filename\n"; - my $kopts = kopts_from_path($filename,"file", - $state->{entries}{$filename}{modified_filename}); - print "/$filepart/0//$kopts/" . - getStickyTagOrDate($stickyInfo) . "\n"; - - my $requestedKopts = $state->{opt}{k}; - if(defined($requestedKopts)) - { - $requestedKopts = "-k$requestedKopts"; - } - else - { - $requestedKopts = ""; - } - if( $kopts ne $requestedKopts ) - { - $log->warn("Ignoring requested -k='$requestedKopts'" - . " for '$filename'; detected -k='$kopts' instead"); - #TODO: Also have option to send warning to user? - } - - $addcount++; - } - - if ( $addcount == 1 ) - { - print "E cvs add: use `cvs commit' to add this file permanently\n"; - } - elsif ( $addcount > 1 ) - { - print "E cvs add: use `cvs commit' to add these files permanently\n"; - } - - print "ok\n"; -} - -# remove \n -# Response expected: yes. Remove a file. This uses any previous Argument, -# Directory, Entry, or Modified requests, if they have been sent. The last -# Directory sent specifies the working directory at the time of the -# operation. Note that this request does not actually do anything to the -# repository; the only effect of a successful remove request is to supply -# the client with a new entries line containing `-' to indicate a removed -# file. In fact, the client probably could perform this operation without -# contacting the server, although using remove may cause the server to -# perform a few more checks. The client sends a subsequent ci request to -# actually record the removal in the repository. -sub req_remove -{ - my ( $cmd, $data ) = @_; - - argsplit("remove"); - - # Grab a handle to the SQLite db and do any necessary updates - my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); - $updater->update(); - - #$log->debug("add state : " . Dumper($state)); - - my $rmcount = 0; - - foreach my $filename ( @{$state->{args}} ) - { - $filename = filecleanup($filename); - - if ( defined ( $state->{entries}{$filename}{unchanged} ) or defined ( $state->{entries}{$filename}{modified_filename} ) ) - { - print "E cvs remove: file `$filename' still in working directory\n"; - next; - } - - # only from entries - my $stickyInfo = resolveStickyInfo($filename); - - my $meta = $updater->getmeta($filename,$stickyInfo); - my $wrev = revparse($filename); - - unless ( defined ( $wrev ) ) - { - print "E cvs remove: nothing known about `$filename'\n"; - next; - } - - if ( defined($wrev) and ($wrev=~/^-/) ) - { - print "E cvs remove: file `$filename' already scheduled for removal\n"; - next; - } - - unless ( $wrev eq $meta->{revision} ) - { - # TODO : not sure if the format of this message is quite correct. - print "E cvs remove: Up to date check failed for `$filename'\n"; - next; - } - - - my ( $filepart, $dirpart ) = filenamesplit($filename, 1); - - print "E cvs remove: scheduling `$filename' for removal\n"; - - print "Checked-in $dirpart\n"; - print "$filename\n"; - my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - print "/$filepart/-$wrev//$kopts/" . getStickyTagOrDate($stickyInfo) . "\n"; - - $rmcount++; - } - - if ( $rmcount == 1 ) - { - print "E cvs remove: use `cvs commit' to remove this file permanently\n"; - } - elsif ( $rmcount > 1 ) - { - print "E cvs remove: use `cvs commit' to remove these files permanently\n"; - } - - print "ok\n"; -} - -# Modified filename \n -# Response expected: no. Additional data: mode, \n, file transmission. Send -# the server a copy of one locally modified file. filename is a file within -# the most recent directory sent with Directory; it must not contain `/'. -# If the user is operating on only some files in a directory, only those -# files need to be included. This can also be sent without Entry, if there -# is no entry for the file. -sub req_Modified -{ - my ( $cmd, $data ) = @_; - - my $mode = <STDIN>; - defined $mode - or (print "E end of file reading mode for $data\n"), return; - chomp $mode; - my $size = <STDIN>; - defined $size - or (print "E end of file reading size of $data\n"), return; - chomp $size; - - # Grab config information - my $blocksize = 8192; - my $bytesleft = $size; - my $tmp; - - # Get a filehandle/name to write it to - my ( $fh, $filename ) = tempfile( DIR => $TEMP_DIR ); - - # Loop over file data writing out to temporary file. - while ( $bytesleft ) - { - $blocksize = $bytesleft if ( $bytesleft < $blocksize ); - read STDIN, $tmp, $blocksize; - print $fh $tmp; - $bytesleft -= $blocksize; - } - - close $fh - or (print "E failed to write temporary, $filename: $!\n"), return; - - # Ensure we have something sensible for the file mode - if ( $mode =~ /u=(\w+)/ ) - { - $mode = $1; - } else { - $mode = "rw"; - } - - # Save the file data in $state - $state->{entries}{$state->{directory}.$data}{modified_filename} = $filename; - $state->{entries}{$state->{directory}.$data}{modified_mode} = $mode; - $state->{entries}{$state->{directory}.$data}{modified_hash} = safe_pipe_capture('git','hash-object',$filename); - $state->{entries}{$state->{directory}.$data}{modified_hash} =~ s/\s.*$//s; - - #$log->debug("req_Modified : file=$data mode=$mode size=$size"); -} - -# Unchanged filename \n -# Response expected: no. Tell the server that filename has not been -# modified in the checked out directory. The filename is a file within the -# most recent directory sent with Directory; it must not contain `/'. -sub req_Unchanged -{ - my ( $cmd, $data ) = @_; - - $state->{entries}{$state->{directory}.$data}{unchanged} = 1; - - #$log->debug("req_Unchanged : $data"); -} - -# Argument text \n -# Response expected: no. Save argument for use in a subsequent command. -# Arguments accumulate until an argument-using command is given, at which -# point they are forgotten. -# Argumentx text \n -# Response expected: no. Append \n followed by text to the current argument -# being saved. -sub req_Argument -{ - my ( $cmd, $data ) = @_; - - # Argumentx means: append to last Argument (with a newline in front) - - $log->debug("$cmd : $data"); - - if ( $cmd eq 'Argumentx') { - ${$state->{arguments}}[$#{$state->{arguments}}] .= "\n" . $data; - } else { - push @{$state->{arguments}}, $data; - } -} - -# expand-modules \n -# Response expected: yes. Expand the modules which are specified in the -# arguments. Returns the data in Module-expansion responses. Note that the -# server can assume that this is checkout or export, not rtag or rdiff; the -# latter do not access the working directory and thus have no need to -# expand modules on the client side. Expand may not be the best word for -# what this request does. It does not necessarily tell you all the files -# contained in a module, for example. Basically it is a way of telling you -# which working directories the server needs to know about in order to -# handle a checkout of the specified modules. For example, suppose that the -# server has a module defined by -# aliasmodule -a 1dir -# That is, one can check out aliasmodule and it will take 1dir in the -# repository and check it out to 1dir in the working directory. Now suppose -# the client already has this module checked out and is planning on using -# the co request to update it. Without using expand-modules, the client -# would have two bad choices: it could either send information about all -# working directories under the current directory, which could be -# unnecessarily slow, or it could be ignorant of the fact that aliasmodule -# stands for 1dir, and neglect to send information for 1dir, which would -# lead to incorrect operation. With expand-modules, the client would first -# ask for the module to be expanded: -sub req_expandmodules -{ - my ( $cmd, $data ) = @_; - - argsplit(); - - $log->debug("req_expandmodules : " . ( defined($data) ? $data : "[NULL]" ) ); - - unless ( ref $state->{arguments} eq "ARRAY" ) - { - print "ok\n"; - return; - } - - foreach my $module ( @{$state->{arguments}} ) - { - $log->debug("SEND : Module-expansion $module"); - print "Module-expansion $module\n"; - } - - print "ok\n"; - statecleanup(); -} - -# co \n -# Response expected: yes. Get files from the repository. This uses any -# previous Argument, Directory, Entry, or Modified requests, if they have -# been sent. Arguments to this command are module names; the client cannot -# know what directories they correspond to except by (1) just sending the -# co request, and then seeing what directory names the server sends back in -# its responses, and (2) the expand-modules request. -sub req_co -{ - my ( $cmd, $data ) = @_; - - argsplit("co"); - - # Provide list of modules, if -c was used. - if (exists $state->{opt}{c}) { - my $showref = safe_pipe_capture(qw(git show-ref --heads)); - for my $line (split '\n', $showref) { - if ( $line =~ m% refs/heads/(.*)$% ) { - print "M $1\t$1\n"; - } - } - print "ok\n"; - return 1; - } - - my $stickyInfo = { 'tag' => $state->{opt}{r}, - 'date' => $state->{opt}{D} }; - - my $module = $state->{args}[0]; - $state->{module} = $module; - my $checkout_path = $module; - - # use the user specified directory if we're given it - $checkout_path = $state->{opt}{d} if ( exists ( $state->{opt}{d} ) ); - - $log->debug("req_co : " . ( defined($data) ? $data : "[NULL]" ) ); - - $log->info("Checking out module '$module' ($state->{CVSROOT}) to '$checkout_path'"); - - $ENV{GIT_DIR} = $state->{CVSROOT} . "/"; - - # Grab a handle to the SQLite db and do any necessary updates - my $updater = GITCVS::updater->new($state->{CVSROOT}, $module, $log); - $updater->update(); - - my $headHash; - if( defined($stickyInfo) && defined($stickyInfo->{tag}) ) - { - $headHash = $updater->lookupCommitRef($stickyInfo->{tag}); - if( !defined($headHash) ) - { - print "error 1 no such tag `$stickyInfo->{tag}'\n"; - cleanupWorkTree(); - exit; - } - } - - $checkout_path =~ s|/$||; # get rid of trailing slashes - - my %seendirs = (); - my $lastdir =''; - - prepDirForOutput( - ".", - $state->{CVSROOT} . "/$module", - $checkout_path, - \%seendirs, - 'checkout', - $state->{dirArgs} ); - - foreach my $git ( @{$updater->getAnyHead($headHash)} ) - { - # Don't want to check out deleted files - next if ( $git->{filehash} eq "deleted" ); - - my $fullName = $git->{name}; - ( $git->{name}, $git->{dir} ) = filenamesplit($git->{name}); - - unless (exists($seendirs{$git->{dir}})) { - prepDirForOutput($git->{dir}, $state->{CVSROOT} . "/$module/", - $checkout_path, \%seendirs, 'checkout', - $state->{dirArgs} ); - $lastdir = $git->{dir}; - $seendirs{$git->{dir}} = 1; - } - - # modification time of this file - print "Mod-time $git->{modified}\n"; - - # print some information to the client - if ( defined ( $git->{dir} ) and $git->{dir} ne "./" ) - { - print "M U $checkout_path/$git->{dir}$git->{name}\n"; - } else { - print "M U $checkout_path/$git->{name}\n"; - } - - # instruct client we're sending a file to put in this path - print "Created $checkout_path/" . ( defined ( $git->{dir} ) and $git->{dir} ne "./" ? $git->{dir} . "/" : "" ) . "\n"; - - print $state->{CVSROOT} . "/$module/" . ( defined ( $git->{dir} ) and $git->{dir} ne "./" ? $git->{dir} . "/" : "" ) . "$git->{name}\n"; - - # this is an "entries" line - my $kopts = kopts_from_path($fullName,"sha1",$git->{filehash}); - print "/$git->{name}/$git->{revision}//$kopts/" . - getStickyTagOrDate($stickyInfo) . "\n"; - # permissions - print "u=$git->{mode},g=$git->{mode},o=$git->{mode}\n"; - - # transmit file - transmitfile($git->{filehash}); - } - - print "ok\n"; - - statecleanup(); -} - -# used by req_co and req_update to set up directories for files -# recursively handles parents -sub prepDirForOutput -{ - my ($dir, $repodir, $remotedir, $seendirs, $request, $dirArgs) = @_; - - my $parent = dirname($dir); - $dir =~ s|/+$||; - $repodir =~ s|/+$||; - $remotedir =~ s|/+$||; - $parent =~ s|/+$||; - - if ($parent eq '.' || $parent eq './') - { - $parent = ''; - } - # recurse to announce unseen parents first - if( length($parent) && - !exists($seendirs->{$parent}) && - ( $request eq "checkout" || - exists($dirArgs->{$parent}) ) ) - { - prepDirForOutput($parent, $repodir, $remotedir, - $seendirs, $request, $dirArgs); - } - # Announce that we are going to modify at the parent level - if ($dir eq '.' || $dir eq './') - { - $dir = ''; - } - if(exists($seendirs->{$dir})) - { - return; - } - $log->debug("announcedir $dir, $repodir, $remotedir" ); - my($thisRemoteDir,$thisRepoDir); - if ($dir ne "") - { - $thisRepoDir="$repodir/$dir"; - if($remotedir eq ".") - { - $thisRemoteDir=$dir; - } - else - { - $thisRemoteDir="$remotedir/$dir"; - } - } - else - { - $thisRepoDir=$repodir; - $thisRemoteDir=$remotedir; - } - unless ( $state->{globaloptions}{-Q} || $state->{globaloptions}{-q} ) - { - print "E cvs $request: Updating $thisRemoteDir\n"; - } - - my ($opt_r)=$state->{opt}{r}; - my $stickyInfo; - if(exists($state->{opt}{A})) - { - # $stickyInfo=undef; - } - elsif( defined($opt_r) && $opt_r ne "" ) - # || ( defined($state->{opt}{D}) && $state->{opt}{D} ne "" ) # TODO - { - $stickyInfo={ 'tag' => (defined($opt_r)?$opt_r:undef) }; - - # TODO: Convert -D value into the form 2011.04.10.04.46.57, - # similar to an entry line's sticky date, without the D prefix. - # It sometimes (always?) arrives as something more like - # '10 Apr 2011 04:46:57 -0000'... - # $stickyInfo={ 'date' => (defined($stickyDate)?$stickyDate:undef) }; - } - else - { - $stickyInfo=getDirStickyInfo($state->{prependdir} . $dir); - } - - my $stickyResponse; - if(defined($stickyInfo)) - { - $stickyResponse = "Set-sticky $thisRemoteDir/\n" . - "$thisRepoDir/\n" . - getStickyTagOrDate($stickyInfo) . "\n"; - } - else - { - $stickyResponse = "Clear-sticky $thisRemoteDir/\n" . - "$thisRepoDir/\n"; - } - - unless ( $state->{globaloptions}{-n} ) - { - print $stickyResponse; - - print "Clear-static-directory $thisRemoteDir/\n"; - print "$thisRepoDir/\n"; - print $stickyResponse; # yes, twice - print "Template $thisRemoteDir/\n"; - print "$thisRepoDir/\n"; - print "0\n"; - } - - $seendirs->{$dir} = 1; - - # FUTURE: This would more accurately emulate CVS by sending - # another copy of sticky after processing the files in that - # directory. Or intermediate: perhaps send all sticky's for - # $seendirs after processing all files. -} - -# update \n -# Response expected: yes. Actually do a cvs update command. This uses any -# previous Argument, Directory, Entry, or Modified requests, if they have -# been sent. The last Directory sent specifies the working directory at the -# time of the operation. The -I option is not used--files which the client -# can decide whether to ignore are not mentioned and the client sends the -# Questionable request for others. -sub req_update -{ - my ( $cmd, $data ) = @_; - - $log->debug("req_update : " . ( defined($data) ? $data : "[NULL]" )); - - argsplit("update"); - - # - # It may just be a client exploring the available heads/modules - # in that case, list them as top level directories and leave it - # at that. Eclipse uses this technique to offer you a list of - # projects (heads in this case) to checkout. - # - if ($state->{module} eq '') { - my $showref = safe_pipe_capture(qw(git show-ref --heads)); - print "E cvs update: Updating .\n"; - for my $line (split '\n', $showref) { - if ( $line =~ m% refs/heads/(.*)$% ) { - print "E cvs update: New directory `$1'\n"; - } - } - print "ok\n"; - return 1; - } - - - # Grab a handle to the SQLite db and do any necessary updates - my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); - - $updater->update(); - - argsfromdir($updater); - - #$log->debug("update state : " . Dumper($state)); - - my($repoDir); - $repoDir=$state->{CVSROOT} . "/$state->{module}/$state->{prependdir}"; - - my %seendirs = (); - - # foreach file specified on the command line ... - foreach my $argsFilename ( @{$state->{args}} ) - { - my $filename; - $filename = filecleanup($argsFilename); - - $log->debug("Processing file $filename"); - - # if we have a -C we should pretend we never saw modified stuff - if ( exists ( $state->{opt}{C} ) ) - { - delete $state->{entries}{$filename}{modified_hash}; - delete $state->{entries}{$filename}{modified_filename}; - $state->{entries}{$filename}{unchanged} = 1; - } - - my $stickyInfo = resolveStickyInfo($filename, - $state->{opt}{r}, - $state->{opt}{D}, - exists($state->{opt}{A})); - my $meta = $updater->getmeta($filename, $stickyInfo); - - # If -p was given, "print" the contents of the requested revision. - if ( exists ( $state->{opt}{p} ) ) { - if ( defined ( $meta->{revision} ) ) { - $log->info("Printing '$filename' revision " . $meta->{revision}); - - transmitfile($meta->{filehash}, { print => 1 }); - } - - next; - } - - # Directories: - prepDirForOutput( - dirname($argsFilename), - $repoDir, - ".", - \%seendirs, - "update", - $state->{dirArgs} ); - - my $wrev = revparse($filename); - - if ( ! defined $meta ) - { - $meta = { - name => $filename, - revision => '0', - filehash => 'added' - }; - if($wrev ne "0") - { - $meta->{filehash}='deleted'; - } - } - - my $oldmeta = $meta; - - # If the working copy is an old revision, lets get that version too for comparison. - my $oldWrev=$wrev; - if(defined($oldWrev)) - { - $oldWrev=~s/^-//; - if($oldWrev ne $meta->{revision}) - { - $oldmeta = $updater->getmeta($filename, $oldWrev); - } - } - - #$log->debug("Target revision is $meta->{revision}, current working revision is $wrev"); - - # Files are up to date if the working copy and repo copy have the same revision, - # and the working copy is unmodified _and_ the user hasn't specified -C - next if ( defined ( $wrev ) - and defined($meta->{revision}) - and $wrev eq $meta->{revision} - and $state->{entries}{$filename}{unchanged} - and not exists ( $state->{opt}{C} ) ); - - # If the working copy and repo copy have the same revision, - # but the working copy is modified, tell the client it's modified - if ( defined ( $wrev ) - and defined($meta->{revision}) - and $wrev eq $meta->{revision} - and $wrev ne "0" - and defined($state->{entries}{$filename}{modified_hash}) - and not exists ( $state->{opt}{C} ) ) - { - $log->info("Tell the client the file is modified"); - print "MT text M \n"; - print "MT fname $filename\n"; - print "MT newline\n"; - next; - } - - if ( $meta->{filehash} eq "deleted" && $wrev ne "0" ) - { - # TODO: If it has been modified in the sandbox, error out - # with the appropriate message, rather than deleting a modified - # file. - - my ( $filepart, $dirpart ) = filenamesplit($filename,1); - - $log->info("Removing '$filename' from working copy (no longer in the repo)"); - - print "E cvs update: `$filename' is no longer in the repository\n"; - # Don't want to actually _DO_ the update if -n specified - unless ( $state->{globaloptions}{-n} ) { - print "Removed $dirpart\n"; - print "$filepart\n"; - } - } - elsif ( not defined ( $state->{entries}{$filename}{modified_hash} ) - or $state->{entries}{$filename}{modified_hash} eq $oldmeta->{filehash} - or $meta->{filehash} eq 'added' ) - { - # normal update, just send the new revision (either U=Update, - # or A=Add, or R=Remove) - if ( defined($wrev) && ($wrev=~/^-/) ) - { - $log->info("Tell the client the file is scheduled for removal"); - print "MT text R \n"; - print "MT fname $filename\n"; - print "MT newline\n"; - next; - } - elsif ( (!defined($wrev) || $wrev eq '0') && - (!defined($meta->{revision}) || $meta->{revision} eq '0') ) - { - $log->info("Tell the client the file is scheduled for addition"); - print "MT text A \n"; - print "MT fname $filename\n"; - print "MT newline\n"; - next; - - } - else { - $log->info("UpdatingX3 '$filename' to ".$meta->{revision}); - print "MT +updated\n"; - print "MT text U \n"; - print "MT fname $filename\n"; - print "MT newline\n"; - print "MT -updated\n"; - } - - my ( $filepart, $dirpart ) = filenamesplit($filename,1); - - # Don't want to actually _DO_ the update if -n specified - unless ( $state->{globaloptions}{-n} ) - { - if ( defined ( $wrev ) ) - { - # instruct client we're sending a file to put in this path as a replacement - print "Update-existing $dirpart\n"; - $log->debug("Updating existing file 'Update-existing $dirpart'"); - } else { - # instruct client we're sending a file to put in this path as a new file - - $log->debug("Creating new file 'Created $dirpart'"); - print "Created $dirpart\n"; - } - print $state->{CVSROOT} . "/$state->{module}/$filename\n"; - - # this is an "entries" line - my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - my $entriesLine = "/$filepart/$meta->{revision}//$kopts/"; - $entriesLine .= getStickyTagOrDate($stickyInfo); - $log->debug($entriesLine); - print "$entriesLine\n"; - - # permissions - $log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}"); - print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n"; - - # transmit file - transmitfile($meta->{filehash}); - } - } else { - my ( $filepart, $dirpart ) = filenamesplit($meta->{name},1); - - my $mergeDir = setupTmpDir(); - - my $file_local = $filepart . ".mine"; - my $mergedFile = "$mergeDir/$file_local"; - system("ln","-s",$state->{entries}{$filename}{modified_filename}, $file_local); - my $file_old = $filepart . "." . $oldmeta->{revision}; - transmitfile($oldmeta->{filehash}, { targetfile => $file_old }); - my $file_new = $filepart . "." . $meta->{revision}; - transmitfile($meta->{filehash}, { targetfile => $file_new }); - - # we need to merge with the local changes ( M=successful merge, C=conflict merge ) - $log->info("Merging $file_local, $file_old, $file_new"); - print "M Merging differences between $oldmeta->{revision} and $meta->{revision} into $filename\n"; - - $log->debug("Temporary directory for merge is $mergeDir"); - - my $return = system("git", "merge-file", $file_local, $file_old, $file_new); - $return >>= 8; - - cleanupTmpDir(); - - if ( $return == 0 ) - { - $log->info("Merged successfully"); - print "M M $filename\n"; - $log->debug("Merged $dirpart"); - - # Don't want to actually _DO_ the update if -n specified - unless ( $state->{globaloptions}{-n} ) - { - print "Merged $dirpart\n"; - $log->debug($state->{CVSROOT} . "/$state->{module}/$filename"); - print $state->{CVSROOT} . "/$state->{module}/$filename\n"; - my $kopts = kopts_from_path("$dirpart/$filepart", - "file",$mergedFile); - $log->debug("/$filepart/$meta->{revision}//$kopts/"); - my $entriesLine="/$filepart/$meta->{revision}//$kopts/"; - $entriesLine .= getStickyTagOrDate($stickyInfo); - print "$entriesLine\n"; - } - } - elsif ( $return == 1 ) - { - $log->info("Merged with conflicts"); - print "E cvs update: conflicts found in $filename\n"; - print "M C $filename\n"; - - # Don't want to actually _DO_ the update if -n specified - unless ( $state->{globaloptions}{-n} ) - { - print "Merged $dirpart\n"; - print $state->{CVSROOT} . "/$state->{module}/$filename\n"; - my $kopts = kopts_from_path("$dirpart/$filepart", - "file",$mergedFile); - my $entriesLine = "/$filepart/$meta->{revision}/+/$kopts/"; - $entriesLine .= getStickyTagOrDate($stickyInfo); - print "$entriesLine\n"; - } - } - else - { - $log->warn("Merge failed"); - next; - } - - # Don't want to actually _DO_ the update if -n specified - unless ( $state->{globaloptions}{-n} ) - { - # permissions - $log->debug("SEND : u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}"); - print "u=$meta->{mode},g=$meta->{mode},o=$meta->{mode}\n"; - - # transmit file, format is single integer on a line by itself (file - # size) followed by the file contents - # TODO : we should copy files in blocks - my $data = safe_pipe_capture('cat', $mergedFile); - $log->debug("File size : " . length($data)); - print length($data) . "\n"; - print $data; - } - } - - } - - # prepDirForOutput() any other existing directories unless they already - # have the right sticky tag: - unless ( $state->{globaloptions}{n} ) - { - my $dir; - foreach $dir (keys(%{$state->{dirMap}})) - { - if( ! $seendirs{$dir} && - exists($state->{dirArgs}{$dir}) ) - { - my($oldTag); - $oldTag=$state->{dirMap}{$dir}{tagspec}; - - unless( ( exists($state->{opt}{A}) && - defined($oldTag) ) || - ( defined($state->{opt}{r}) && - ( !defined($oldTag) || - $state->{opt}{r} ne $oldTag ) ) ) - # TODO?: OR sticky dir is different... - { - next; - } - - prepDirForOutput( - $dir, - $repoDir, - ".", - \%seendirs, - 'update', - $state->{dirArgs} ); - } - - # TODO?: Consider sending a final duplicate Sticky response - # to more closely mimic real CVS. - } - } - - print "ok\n"; -} - -sub req_ci -{ - my ( $cmd, $data ) = @_; - - argsplit("ci"); - - #$log->debug("State : " . Dumper($state)); - - $log->info("req_ci : " . ( defined($data) ? $data : "[NULL]" )); - - if ( $state->{method} eq 'pserver' and $state->{user} eq 'anonymous' ) - { - print "error 1 anonymous user cannot commit via pserver\n"; - cleanupWorkTree(); - exit; - } - - if ( -e $state->{CVSROOT} . "/index" ) - { - $log->warn("file 'index' already exists in the git repository"); - print "error 1 Index already exists in git repo\n"; - cleanupWorkTree(); - exit; - } - - # Grab a handle to the SQLite db and do any necessary updates - my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); - $updater->update(); - - my @committedfiles = (); - my %oldmeta; - my $stickyInfo; - my $branchRef; - my $parenthash; - - # foreach file specified on the command line ... - foreach my $filename ( @{$state->{args}} ) - { - my $committedfile = $filename; - $filename = filecleanup($filename); - - next unless ( exists $state->{entries}{$filename}{modified_filename} or not $state->{entries}{$filename}{unchanged} ); - - ##### - # Figure out which branch and parenthash we are committing - # to, and setup worktree: - - # should always come from entries: - my $fileStickyInfo = resolveStickyInfo($filename); - if( !defined($branchRef) ) - { - $stickyInfo = $fileStickyInfo; - if( defined($stickyInfo) && - ( defined($stickyInfo->{date}) || - !defined($stickyInfo->{tag}) ) ) - { - print "error 1 cannot commit with sticky date for file `$filename'\n"; - cleanupWorkTree(); - exit; - } - - $branchRef = "refs/heads/$state->{module}"; - if ( defined($stickyInfo) && defined($stickyInfo->{tag}) ) - { - $branchRef = "refs/heads/$stickyInfo->{tag}"; - } - - $parenthash = safe_pipe_capture('git', 'show-ref', '-s', $branchRef); - chomp $parenthash; - if ($parenthash !~ /^[0-9a-f]{40}$/) - { - if ( defined($stickyInfo) && defined($stickyInfo->{tag}) ) - { - print "error 1 sticky tag `$stickyInfo->{tag}' for file `$filename' is not a branch\n"; - } - else - { - print "error 1 pserver cannot find the current HEAD of module"; - } - cleanupWorkTree(); - exit; - } - - setupWorkTree($parenthash); - - $log->info("Lockless commit start, basing commit on '$work->{workDir}', index file is '$work->{index}'"); - - $log->info("Created index '$work->{index}' for head $state->{module} - exit status $?"); - } - elsif( !refHashEqual($stickyInfo,$fileStickyInfo) ) - { - #TODO: We could split the cvs commit into multiple - # git commits by distinct stickyTag values, but that - # is lowish priority. - print "error 1 Committing different files to different" - . " branches is not currently supported\n"; - cleanupWorkTree(); - exit; - } - - ##### - # Process this file: - - my $meta = $updater->getmeta($filename,$stickyInfo); - $oldmeta{$filename} = $meta; - - my $wrev = revparse($filename); - - my ( $filepart, $dirpart ) = filenamesplit($filename); - - # do a checkout of the file if it is part of this tree - if ($wrev) { - system('git', 'checkout-index', '-f', '-u', $filename); - unless ($? == 0) { - die "Error running git-checkout-index -f -u $filename : $!"; - } - } - - my $addflag = 0; - my $rmflag = 0; - $rmflag = 1 if ( defined($wrev) and ($wrev=~/^-/) ); - $addflag = 1 unless ( -e $filename ); - - # Do up to date checking - unless ( $addflag or $wrev eq $meta->{revision} or - ( $rmflag and $wrev eq "-$meta->{revision}" ) ) - { - # fail everything if an up to date check fails - print "error 1 Up to date check failed for $filename\n"; - cleanupWorkTree(); - exit; - } - - push @committedfiles, $committedfile; - $log->info("Committing $filename"); - - system("mkdir","-p",$dirpart) unless ( -d $dirpart ); - - unless ( $rmflag ) - { - $log->debug("rename $state->{entries}{$filename}{modified_filename} $filename"); - rename $state->{entries}{$filename}{modified_filename},$filename; - - # Calculate modes to remove - my $invmode = ""; - foreach ( qw (r w x) ) { $invmode .= $_ unless ( $state->{entries}{$filename}{modified_mode} =~ /$_/ ); } - - $log->debug("chmod u+" . $state->{entries}{$filename}{modified_mode} . "-" . $invmode . " $filename"); - system("chmod","u+" . $state->{entries}{$filename}{modified_mode} . "-" . $invmode, $filename); - } - - if ( $rmflag ) - { - $log->info("Removing file '$filename'"); - unlink($filename); - system("git", "update-index", "--remove", $filename); - } - elsif ( $addflag ) - { - $log->info("Adding file '$filename'"); - system("git", "update-index", "--add", $filename); - } else { - $log->info("UpdatingX2 file '$filename'"); - system("git", "update-index", $filename); - } - } - - unless ( scalar(@committedfiles) > 0 ) - { - print "E No files to commit\n"; - print "ok\n"; - cleanupWorkTree(); - return; - } - - my $treehash = safe_pipe_capture(qw(git write-tree)); - chomp $treehash; - - $log->debug("Treehash : $treehash, Parenthash : $parenthash"); - - # write our commit message out if we have one ... - my ( $msg_fh, $msg_filename ) = tempfile( DIR => $TEMP_DIR ); - print $msg_fh $state->{opt}{m};# if ( exists ( $state->{opt}{m} ) ); - if ( defined ( $cfg->{gitcvs}{commitmsgannotation} ) ) { - if ($cfg->{gitcvs}{commitmsgannotation} !~ /^\s*$/ ) { - print $msg_fh "\n\n".$cfg->{gitcvs}{commitmsgannotation}."\n" - } - } else { - print $msg_fh "\n\nvia git-CVS emulator\n"; - } - close $msg_fh; - - my $commithash = safe_pipe_capture('git', 'commit-tree', $treehash, '-p', $parenthash, '-F', $msg_filename); - chomp($commithash); - $log->info("Commit hash : $commithash"); - - unless ( $commithash =~ /[a-zA-Z0-9]{40}/ ) - { - $log->warn("Commit failed (Invalid commit hash)"); - print "error 1 Commit failed (unknown reason)\n"; - cleanupWorkTree(); - exit; - } - - ### Emulate git-receive-pack by running hooks/update - my @hook = ( $ENV{GIT_DIR}.'hooks/update', $branchRef, - $parenthash, $commithash ); - if( -x $hook[0] ) { - unless( system( @hook ) == 0 ) - { - $log->warn("Commit failed (update hook declined to update ref)"); - print "error 1 Commit failed (update hook declined)\n"; - cleanupWorkTree(); - exit; - } - } - - ### Update the ref - if (system(qw(git update-ref -m), "cvsserver ci", - $branchRef, $commithash, $parenthash)) { - $log->warn("update-ref for $state->{module} failed."); - print "error 1 Cannot commit -- update first\n"; - cleanupWorkTree(); - exit; - } - - ### Emulate git-receive-pack by running hooks/post-receive - my $hook = $ENV{GIT_DIR}.'hooks/post-receive'; - if( -x $hook ) { - open(my $pipe, "| $hook") || die "can't fork $!"; - - local $SIG{PIPE} = sub { die 'pipe broke' }; - - print $pipe "$parenthash $commithash $branchRef\n"; - - close $pipe || die "bad pipe: $! $?"; - } - - $updater->update(); - - ### Then hooks/post-update - $hook = $ENV{GIT_DIR}.'hooks/post-update'; - if (-x $hook) { - system($hook, $branchRef); - } - - # foreach file specified on the command line ... - foreach my $filename ( @committedfiles ) - { - $filename = filecleanup($filename); - - my $meta = $updater->getmeta($filename,$stickyInfo); - unless (defined $meta->{revision}) { - $meta->{revision} = "1.1"; - } - - my ( $filepart, $dirpart ) = filenamesplit($filename, 1); - - $log->debug("Checked-in $dirpart : $filename"); - - print "M $state->{CVSROOT}/$state->{module}/$filename,v <-- $dirpart$filepart\n"; - if ( defined $meta->{filehash} && $meta->{filehash} eq "deleted" ) - { - print "M new revision: delete; previous revision: $oldmeta{$filename}{revision}\n"; - print "Remove-entry $dirpart\n"; - print "$filename\n"; - } else { - if ($meta->{revision} eq "1.1") { - print "M initial revision: 1.1\n"; - } else { - print "M new revision: $meta->{revision}; previous revision: $oldmeta{$filename}{revision}\n"; - } - print "Checked-in $dirpart\n"; - print "$filename\n"; - my $kopts = kopts_from_path($filename,"sha1",$meta->{filehash}); - print "/$filepart/$meta->{revision}//$kopts/" . - getStickyTagOrDate($stickyInfo) . "\n"; - } - } - - cleanupWorkTree(); - print "ok\n"; -} - -sub req_status -{ - my ( $cmd, $data ) = @_; - - argsplit("status"); - - $log->info("req_status : " . ( defined($data) ? $data : "[NULL]" )); - #$log->debug("status state : " . Dumper($state)); - - # Grab a handle to the SQLite db and do any necessary updates - my $updater; - $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); - $updater->update(); - - # if no files were specified, we need to work out what files we should - # be providing status on ... - argsfromdir($updater); - - # foreach file specified on the command line ... - foreach my $filename ( @{$state->{args}} ) - { - $filename = filecleanup($filename); - - if ( exists($state->{opt}{l}) && - index($filename, '/', length($state->{prependdir})) >= 0 ) - { - next; - } - - my $wrev = revparse($filename); - - my $stickyInfo = resolveStickyInfo($filename); - my $meta = $updater->getmeta($filename,$stickyInfo); - my $oldmeta = $meta; - - # If the working copy is an old revision, lets get that - # version too for comparison. - if ( defined($wrev) and $wrev ne $meta->{revision} ) - { - my($rmRev)=$wrev; - $rmRev=~s/^-//; - $oldmeta = $updater->getmeta($filename, $rmRev); - } - - # TODO : All possible statuses aren't yet implemented - my $status; - # Files are up to date if the working copy and repo copy have - # the same revision, and the working copy is unmodified - if ( defined ( $wrev ) and defined($meta->{revision}) and - $wrev eq $meta->{revision} and - ( ( $state->{entries}{$filename}{unchanged} and - ( not defined ( $state->{entries}{$filename}{conflict} ) or - $state->{entries}{$filename}{conflict} !~ /^\+=/ ) ) or - ( defined($state->{entries}{$filename}{modified_hash}) and - $state->{entries}{$filename}{modified_hash} eq - $meta->{filehash} ) ) ) - { - $status = "Up-to-date" - } - - # Need checkout if the working copy has a different (usually - # older) revision than the repo copy, and the working copy is - # unmodified - if ( defined ( $wrev ) and defined ( $meta->{revision} ) and - $meta->{revision} ne $wrev and - ( $state->{entries}{$filename}{unchanged} or - ( defined($state->{entries}{$filename}{modified_hash}) and - $state->{entries}{$filename}{modified_hash} eq - $oldmeta->{filehash} ) ) ) - { - $status ||= "Needs Checkout"; - } - - # Need checkout if it exists in the repo but doesn't have a working - # copy - if ( not defined ( $wrev ) and defined ( $meta->{revision} ) ) - { - $status ||= "Needs Checkout"; - } - - # Locally modified if working copy and repo copy have the - # same revision but there are local changes - if ( defined ( $wrev ) and defined($meta->{revision}) and - $wrev eq $meta->{revision} and - $wrev ne "0" and - $state->{entries}{$filename}{modified_filename} ) - { - $status ||= "Locally Modified"; - } - - # Needs Merge if working copy revision is different - # (usually older) than repo copy and there are local changes - if ( defined ( $wrev ) and defined ( $meta->{revision} ) and - $meta->{revision} ne $wrev and - $state->{entries}{$filename}{modified_filename} ) - { - $status ||= "Needs Merge"; - } - - if ( defined ( $state->{entries}{$filename}{revision} ) and - ( !defined($meta->{revision}) || - $meta->{revision} eq "0" ) ) - { - $status ||= "Locally Added"; - } - if ( defined ( $wrev ) and defined ( $meta->{revision} ) and - $wrev eq "-$meta->{revision}" ) - { - $status ||= "Locally Removed"; - } - if ( defined ( $state->{entries}{$filename}{conflict} ) and - $state->{entries}{$filename}{conflict} =~ /^\+=/ ) - { - $status ||= "Unresolved Conflict"; - } - if ( 0 ) - { - $status ||= "File had conflicts on merge"; - } - - $status ||= "Unknown"; - - my ($filepart) = filenamesplit($filename); - - print "M =======" . ( "=" x 60 ) . "\n"; - print "M File: $filepart\tStatus: $status\n"; - if ( defined($state->{entries}{$filename}{revision}) ) - { - print "M Working revision:\t" . - $state->{entries}{$filename}{revision} . "\n"; - } else { - print "M Working revision:\tNo entry for $filename\n"; - } - if ( defined($meta->{revision}) ) - { - print "M Repository revision:\t" . - $meta->{revision} . - "\t$state->{CVSROOT}/$state->{module}/$filename,v\n"; - my($tagOrDate)=$state->{entries}{$filename}{tag_or_date}; - my($tag)=($tagOrDate=~m/^T(.+)$/); - if( !defined($tag) ) - { - $tag="(none)"; - } - print "M Sticky Tag:\t\t$tag\n"; - my($date)=($tagOrDate=~m/^D(.+)$/); - if( !defined($date) ) - { - $date="(none)"; - } - print "M Sticky Date:\t\t$date\n"; - my($options)=$state->{entries}{$filename}{options}; - if( $options eq "" ) - { - $options="(none)"; - } - print "M Sticky Options:\t\t$options\n"; - } else { - print "M Repository revision:\tNo revision control file\n"; - } - print "M\n"; - } - - print "ok\n"; -} - -sub req_diff -{ - my ( $cmd, $data ) = @_; - - argsplit("diff"); - - $log->debug("req_diff : " . ( defined($data) ? $data : "[NULL]" )); - #$log->debug("status state : " . Dumper($state)); - - my ($revision1, $revision2); - if ( defined ( $state->{opt}{r} ) and ref $state->{opt}{r} eq "ARRAY" ) - { - $revision1 = $state->{opt}{r}[0]; - $revision2 = $state->{opt}{r}[1]; - } else { - $revision1 = $state->{opt}{r}; - } - - $log->debug("Diffing revisions " . - ( defined($revision1) ? $revision1 : "[NULL]" ) . - " and " . ( defined($revision2) ? $revision2 : "[NULL]" ) ); - - # Grab a handle to the SQLite db and do any necessary updates - my $updater; - $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); - $updater->update(); - - # if no files were specified, we need to work out what files we should - # be providing status on ... - argsfromdir($updater); - - my($foundDiff); - - # foreach file specified on the command line ... - foreach my $argFilename ( @{$state->{args}} ) - { - my($filename) = filecleanup($argFilename); - - my ( $fh, $file1, $file2, $meta1, $meta2, $filediff ); - - my $wrev = revparse($filename); - - # Priority for revision1: - # 1. First -r (missing file: check -N) - # 2. wrev from client's Entry line - # - missing line/file: check -N - # - "0": added file not committed (empty contents for rev1) - # - Prefixed with dash (to be removed): check -N - - if ( defined ( $revision1 ) ) - { - $meta1 = $updater->getmeta($filename, $revision1); - } - elsif( defined($wrev) && $wrev ne "0" ) - { - my($rmRev)=$wrev; - $rmRev=~s/^-//; - $meta1 = $updater->getmeta($filename, $rmRev); - } - if ( !defined($meta1) || - $meta1->{filehash} eq "deleted" ) - { - if( !exists($state->{opt}{N}) ) - { - if(!defined($revision1)) - { - print "E File $filename at revision $revision1 doesn't exist\n"; - } - next; - } - elsif( !defined($meta1) ) - { - $meta1 = { - name => $filename, - revision => '0', - filehash => 'deleted' - }; - } - } - - # Priority for revision2: - # 1. Second -r (missing file: check -N) - # 2. Modified file contents from client - # 3. wrev from client's Entry line - # - missing line/file: check -N - # - Prefixed with dash (to be removed): check -N - - # if we have a second -r switch, use it too - if ( defined ( $revision2 ) ) - { - $meta2 = $updater->getmeta($filename, $revision2); - } - elsif(defined($state->{entries}{$filename}{modified_filename})) - { - $file2 = $state->{entries}{$filename}{modified_filename}; - $meta2 = { - name => $filename, - revision => '0', - filehash => 'modified' - }; - } - elsif( defined($wrev) && ($wrev!~/^-/) ) - { - if(!defined($revision1)) # no revision and no modifications: - { - next; - } - $meta2 = $updater->getmeta($filename, $wrev); - } - if(!defined($file2)) - { - if ( !defined($meta2) || - $meta2->{filehash} eq "deleted" ) - { - if( !exists($state->{opt}{N}) ) - { - if(!defined($revision2)) - { - print "E File $filename at revision $revision2 doesn't exist\n"; - } - next; - } - elsif( !defined($meta2) ) - { - $meta2 = { - name => $filename, - revision => '0', - filehash => 'deleted' - }; - } - } - } - - if( $meta1->{filehash} eq $meta2->{filehash} ) - { - $log->info("unchanged $filename"); - next; - } - - # Retrieve revision contents: - ( undef, $file1 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 ); - transmitfile($meta1->{filehash}, { targetfile => $file1 }); - - if(!defined($file2)) - { - ( undef, $file2 ) = tempfile( DIR => $TEMP_DIR, OPEN => 0 ); - transmitfile($meta2->{filehash}, { targetfile => $file2 }); - } - - # Generate the actual diff: - print "M Index: $argFilename\n"; - print "M =======" . ( "=" x 60 ) . "\n"; - print "M RCS file: $state->{CVSROOT}/$state->{module}/$filename,v\n"; - if ( defined ( $meta1 ) && $meta1->{revision} ne "0" ) - { - print "M retrieving revision $meta1->{revision}\n" - } - if ( defined ( $meta2 ) && $meta2->{revision} ne "0" ) - { - print "M retrieving revision $meta2->{revision}\n" - } - print "M diff "; - foreach my $opt ( sort keys %{$state->{opt}} ) - { - if ( ref $state->{opt}{$opt} eq "ARRAY" ) - { - foreach my $value ( @{$state->{opt}{$opt}} ) - { - print "-$opt $value "; - } - } else { - print "-$opt "; - if ( defined ( $state->{opt}{$opt} ) ) - { - print "$state->{opt}{$opt} " - } - } - } - print "$argFilename\n"; - - $log->info("Diffing $filename -r $meta1->{revision} -r " . - ( $meta2->{revision} or "workingcopy" )); - - # TODO: Use --label instead of -L because -L is no longer - # documented and may go away someday. Not sure if there there are - # versions that only support -L, which would make this change risky? - # http://osdir.com/ml/bug-gnu-utils-gnu/2010-12/msg00060.html - # ("man diff" should actually document the best migration strategy, - # [current behavior, future changes, old compatibility issues - # or lack thereof, etc], not just stop mentioning the option...) - # TODO: Real CVS seems to include a date in the label, before - # the revision part, without the keyword "revision". The following - # has minimal changes compared to original versions of - # git-cvsserver.perl. (Mostly tab vs space after filename.) - - my (@diffCmd) = ( 'diff' ); - if ( exists($state->{opt}{N}) ) - { - push @diffCmd,"-N"; - } - if ( exists $state->{opt}{u} ) - { - push @diffCmd,("-u","-L"); - if( $meta1->{filehash} eq "deleted" ) - { - push @diffCmd,"/dev/null"; - } else { - push @diffCmd,("$argFilename\trevision $meta1->{revision}"); - } - - if( defined($meta2->{filehash}) ) - { - if( $meta2->{filehash} eq "deleted" ) - { - push @diffCmd,("-L","/dev/null"); - } else { - push @diffCmd,("-L", - "$argFilename\trevision $meta2->{revision}"); - } - } else { - push @diffCmd,("-L","$argFilename\tworking copy"); - } - } - push @diffCmd,($file1,$file2); - if(!open(DIFF,"-|",@diffCmd)) - { - $log->warn("Unable to run diff: $!"); - } - my($diffLine); - while(defined($diffLine=<DIFF>)) - { - print "M $diffLine"; - $foundDiff=1; - } - close(DIFF); - } - - if($foundDiff) - { - print "error \n"; - } - else - { - print "ok\n"; - } -} - -sub req_log -{ - my ( $cmd, $data ) = @_; - - argsplit("log"); - - $log->debug("req_log : " . ( defined($data) ? $data : "[NULL]" )); - #$log->debug("log state : " . Dumper($state)); - - my ( $revFilter ); - if ( defined ( $state->{opt}{r} ) ) - { - $revFilter = $state->{opt}{r}; - } - - # Grab a handle to the SQLite db and do any necessary updates - my $updater; - $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); - $updater->update(); - - # if no files were specified, we need to work out what files we - # should be providing status on ... - argsfromdir($updater); - - # foreach file specified on the command line ... - foreach my $filename ( @{$state->{args}} ) - { - $filename = filecleanup($filename); - - my $headmeta = $updater->getmeta($filename); - - my ($revisions,$totalrevisions) = $updater->getlog($filename, - $revFilter); - - next unless ( scalar(@$revisions) ); - - print "M \n"; - print "M RCS file: $state->{CVSROOT}/$state->{module}/$filename,v\n"; - print "M Working file: $filename\n"; - print "M head: $headmeta->{revision}\n"; - print "M branch:\n"; - print "M locks: strict\n"; - print "M access list:\n"; - print "M symbolic names:\n"; - print "M keyword substitution: kv\n"; - print "M total revisions: $totalrevisions;\tselected revisions: " . - scalar(@$revisions) . "\n"; - print "M description:\n"; - - foreach my $revision ( @$revisions ) - { - print "M ----------------------------\n"; - print "M revision $revision->{revision}\n"; - # reformat the date for log output - if ( $revision->{modified} =~ /(\d+)\s+(\w+)\s+(\d+)\s+(\S+)/ and - defined($DATE_LIST->{$2}) ) - { - $revision->{modified} = sprintf('%04d/%02d/%02d %s', - $3, $DATE_LIST->{$2}, $1, $4 ); - } - $revision->{author} = cvs_author($revision->{author}); - print "M date: $revision->{modified};" . - " author: $revision->{author}; state: " . - ( $revision->{filehash} eq "deleted" ? "dead" : "Exp" ) . - "; lines: +2 -3\n"; - my $commitmessage; - $commitmessage = $updater->commitmessage($revision->{commithash}); - $commitmessage =~ s/^/M /mg; - print $commitmessage . "\n"; - } - print "M =======" . ( "=" x 70 ) . "\n"; - } - - print "ok\n"; -} - -sub req_annotate -{ - my ( $cmd, $data ) = @_; - - argsplit("annotate"); - - $log->info("req_annotate : " . ( defined($data) ? $data : "[NULL]" )); - #$log->debug("status state : " . Dumper($state)); - - # Grab a handle to the SQLite db and do any necessary updates - my $updater = GITCVS::updater->new($state->{CVSROOT}, $state->{module}, $log); - $updater->update(); - - # if no files were specified, we need to work out what files we should be providing annotate on ... - argsfromdir($updater); - - # we'll need a temporary checkout dir - setupWorkTree(); - - $log->info("Temp checkoutdir creation successful, basing annotate session work on '$work->{workDir}', index file is '$ENV{GIT_INDEX_FILE}'"); - - # foreach file specified on the command line ... - foreach my $filename ( @{$state->{args}} ) - { - $filename = filecleanup($filename); - - my $meta = $updater->getmeta($filename); - - next unless ( $meta->{revision} ); - - # get all the commits that this file was in - # in dense format -- aka skip dead revisions - my $revisions = $updater->gethistorydense($filename); - my $lastseenin = $revisions->[0][2]; - - # populate the temporary index based on the latest commit were we saw - # the file -- but do it cheaply without checking out any files - # TODO: if we got a revision from the client, use that instead - # to look up the commithash in sqlite (still good to default to - # the current head as we do now) - system("git", "read-tree", $lastseenin); - unless ($? == 0) - { - print "E error running git-read-tree $lastseenin $ENV{GIT_INDEX_FILE} $!\n"; - return; - } - $log->info("Created index '$ENV{GIT_INDEX_FILE}' with commit $lastseenin - exit status $?"); - - # do a checkout of the file - system('git', 'checkout-index', '-f', '-u', $filename); - unless ($? == 0) { - print "E error running git-checkout-index -f -u $filename : $!\n"; - return; - } - - $log->info("Annotate $filename"); - - # Prepare a file with the commits from the linearized - # history that annotate should know about. This prevents - # git-jsannotate telling us about commits we are hiding - # from the client. - - my $a_hints = "$work->{workDir}/.annotate_hints"; - if (!open(ANNOTATEHINTS, '>', $a_hints)) { - print "E failed to open '$a_hints' for writing: $!\n"; - return; - } - for (my $i=0; $i < @$revisions; $i++) - { - print ANNOTATEHINTS $revisions->[$i][2]; - if ($i+1 < @$revisions) { # have we got a parent? - print ANNOTATEHINTS ' ' . $revisions->[$i+1][2]; - } - print ANNOTATEHINTS "\n"; - } - - print ANNOTATEHINTS "\n"; - close ANNOTATEHINTS - or (print "E failed to write $a_hints: $!\n"), return; - - my @cmd = (qw(git annotate -l -S), $a_hints, $filename); - if (!open(ANNOTATE, "-|", @cmd)) { - print "E error invoking ". join(' ',@cmd) .": $!\n"; - return; - } - my $metadata = {}; - print "E Annotations for $filename\n"; - print "E ***************\n"; - while ( <ANNOTATE> ) - { - if (m/^([a-zA-Z0-9]{40})\t\([^\)]*\)(.*)$/i) - { - my $commithash = $1; - my $data = $2; - unless ( defined ( $metadata->{$commithash} ) ) - { - $metadata->{$commithash} = $updater->getmeta($filename, $commithash); - $metadata->{$commithash}{author} = cvs_author($metadata->{$commithash}{author}); - $metadata->{$commithash}{modified} = sprintf("%02d-%s-%02d", $1, $2, $3) if ( $metadata->{$commithash}{modified} =~ /^(\d+)\s(\w+)\s\d\d(\d\d)/ ); - } - printf("M %-7s (%-8s %10s): %s\n", - $metadata->{$commithash}{revision}, - $metadata->{$commithash}{author}, - $metadata->{$commithash}{modified}, - $data - ); - } else { - $log->warn("Error in annotate output! LINE: $_"); - print "E Annotate error \n"; - next; - } - } - close ANNOTATE; - } - - # done; get out of the tempdir - cleanupWorkTree(); - - print "ok\n"; - -} - -# This method takes the state->{arguments} array and produces two new arrays. -# The first is $state->{args} which is everything before the '--' argument, and -# the second is $state->{files} which is everything after it. -sub argsplit -{ - $state->{args} = []; - $state->{files} = []; - $state->{opt} = {}; - - return unless( defined($state->{arguments}) and ref $state->{arguments} eq "ARRAY" ); - - my $type = shift; - - if ( defined($type) ) - { - my $opt = {}; - $opt = { A => 0, N => 0, P => 0, R => 0, c => 0, f => 0, l => 0, n => 0, p => 0, s => 0, r => 1, D => 1, d => 1, k => 1, j => 1, } if ( $type eq "co" ); - $opt = { v => 0, l => 0, R => 0 } if ( $type eq "status" ); - $opt = { A => 0, P => 0, C => 0, d => 0, f => 0, l => 0, R => 0, p => 0, k => 1, r => 1, D => 1, j => 1, I => 1, W => 1 } if ( $type eq "update" ); - $opt = { l => 0, R => 0, k => 1, D => 1, D => 1, r => 2, N => 0 } if ( $type eq "diff" ); - $opt = { c => 0, R => 0, l => 0, f => 0, F => 1, m => 1, r => 1 } if ( $type eq "ci" ); - $opt = { k => 1, m => 1 } if ( $type eq "add" ); - $opt = { f => 0, l => 0, R => 0 } if ( $type eq "remove" ); - $opt = { l => 0, b => 0, h => 0, R => 0, t => 0, N => 0, S => 0, r => 1, d => 1, s => 1, w => 1 } if ( $type eq "log" ); - - - while ( scalar ( @{$state->{arguments}} ) > 0 ) - { - my $arg = shift @{$state->{arguments}}; - - next if ( $arg eq "--" ); - next unless ( $arg =~ /\S/ ); - - # if the argument looks like a switch - if ( $arg =~ /^-(\w)(.*)/ ) - { - # if it's a switch that takes an argument - if ( $opt->{$1} ) - { - # If this switch has already been provided - if ( $opt->{$1} > 1 and exists ( $state->{opt}{$1} ) ) - { - $state->{opt}{$1} = [ $state->{opt}{$1} ]; - if ( length($2) > 0 ) - { - push @{$state->{opt}{$1}},$2; - } else { - push @{$state->{opt}{$1}}, shift @{$state->{arguments}}; - } - } else { - # if there's extra data in the arg, use that as the argument for the switch - if ( length($2) > 0 ) - { - $state->{opt}{$1} = $2; - } else { - $state->{opt}{$1} = shift @{$state->{arguments}}; - } - } - } else { - $state->{opt}{$1} = undef; - } - } - else - { - push @{$state->{args}}, $arg; - } - } - } - else - { - my $mode = 0; - - foreach my $value ( @{$state->{arguments}} ) - { - if ( $value eq "--" ) - { - $mode++; - next; - } - push @{$state->{args}}, $value if ( $mode == 0 ); - push @{$state->{files}}, $value if ( $mode == 1 ); - } - } -} - -# Used by argsfromdir -sub expandArg -{ - my ($updater,$outNameMap,$outDirMap,$path,$isDir) = @_; - - my $fullPath = filecleanup($path); - - # Is it a directory? - if( defined($state->{dirMap}{$fullPath}) || - defined($state->{dirMap}{"$fullPath/"}) ) - { - # It is a directory in the user's sandbox. - $isDir=1; - - if(defined($state->{entries}{$fullPath})) - { - $log->fatal("Inconsistent file/dir type"); - die "Inconsistent file/dir type"; - } - } - elsif(defined($state->{entries}{$fullPath})) - { - # It is a file in the user's sandbox. - $isDir=0; - } - my($revDirMap,$otherRevDirMap); - if(!defined($isDir) || $isDir) - { - # Resolve version tree for sticky tag: - # (for now we only want list of files for the version, not - # particular versions of those files: assume it is a directory - # for the moment; ignore Entry's stick tag) - - # Order of precedence of sticky tags: - # -A [head] - # -r /tag/ - # [file entry sticky tag, but that is only relevant to files] - # [the tag specified in dir req_Sticky] - # [the tag specified in a parent dir req_Sticky] - # [head] - # Also, -r may appear twice (for diff). - # - # FUTURE: When/if -j (merges) are supported, we also - # need to add relevant files from one or two - # versions specified with -j. - - if(exists($state->{opt}{A})) - { - $revDirMap=$updater->getRevisionDirMap(); - } - elsif( defined($state->{opt}{r}) and - ref $state->{opt}{r} eq "ARRAY" ) - { - $revDirMap=$updater->getRevisionDirMap($state->{opt}{r}[0]); - $otherRevDirMap=$updater->getRevisionDirMap($state->{opt}{r}[1]); - } - elsif(defined($state->{opt}{r})) - { - $revDirMap=$updater->getRevisionDirMap($state->{opt}{r}); - } - else - { - my($sticky)=getDirStickyInfo($fullPath); - $revDirMap=$updater->getRevisionDirMap($sticky->{tag}); - } - - # Is it a directory? - if( defined($revDirMap->{$fullPath}) || - defined($otherRevDirMap->{$fullPath}) ) - { - $isDir=1; - } - } - - # What to do with it? - if(!$isDir) - { - $outNameMap->{$fullPath}=1; - } - else - { - $outDirMap->{$fullPath}=1; - - if(defined($revDirMap->{$fullPath})) - { - addDirMapFiles($updater,$outNameMap,$outDirMap, - $revDirMap->{$fullPath}); - } - if( defined($otherRevDirMap) && - defined($otherRevDirMap->{$fullPath}) ) - { - addDirMapFiles($updater,$outNameMap,$outDirMap, - $otherRevDirMap->{$fullPath}); - } - } -} - -# Used by argsfromdir -# Add entries from dirMap to outNameMap. Also recurse into entries -# that are subdirectories. -sub addDirMapFiles -{ - my($updater,$outNameMap,$outDirMap,$dirMap)=@_; - - my($fullName); - foreach $fullName (keys(%$dirMap)) - { - my $cleanName=$fullName; - if(defined($state->{prependdir})) - { - if(!($cleanName=~s/^\Q$state->{prependdir}\E//)) - { - $log->fatal("internal error stripping prependdir"); - die "internal error stripping prependdir"; - } - } - - if($dirMap->{$fullName} eq "F") - { - $outNameMap->{$cleanName}=1; - } - elsif($dirMap->{$fullName} eq "D") - { - if(!$state->{opt}{l}) - { - expandArg($updater,$outNameMap,$outDirMap,$cleanName,1); - } - } - else - { - $log->fatal("internal error in addDirMapFiles"); - die "internal error in addDirMapFiles"; - } - } -} - -# This method replaces $state->{args} with a directory-expanded -# list of all relevant filenames (recursively unless -d), based -# on $state->{entries}, and the "current" list of files in -# each directory. "Current" files as determined by -# either the requested (-r/-A) or "req_Sticky" version of -# that directory. -# Both the input args and the new output args are relative -# to the cvs-client's CWD, although some of the internal -# computations are relative to the top of the project. -sub argsfromdir -{ - my $updater = shift; - - # Notes about requirements for specific callers: - # update # "standard" case (entries; a single -r/-A/default; -l) - # # Special case: -d for create missing directories. - # diff # 0 or 1 -r's: "standard" case. - # # 2 -r's: We could ignore entries (just use the two -r's), - # # but it doesn't really matter. - # annotate # "standard" case - # log # Punting: log -r has a more complex non-"standard" - # # meaning, and we don't currently try to support log'ing - # # branches at all (need a lot of work to - # # support CVS-consistent branch relative version - # # numbering). -#HERE: But we still want to expand directories. Maybe we should -# essentially force "-A". - # status # "standard", except that -r/-A/default are not possible. - # # Mostly only used to expand entries only) - # - # Don't use argsfromdir at all: - # add # Explicit arguments required. Directory args imply add - # # the directory itself, not the files in it. - # co # Obtain list directly. - # remove # HERE: TEST: MAYBE client does the recursion for us, - # # since it only makes sense to remove stuff already in - # # the sandbox? - # ci # HERE: Similar to remove... - # # Don't try to implement the confusing/weird - # # ci -r bug er.."feature". - - if(scalar(@{$state->{args}})==0) - { - $state->{args} = [ "." ]; - } - my %allArgs; - my %allDirs; - for my $file (@{$state->{args}}) - { - expandArg($updater,\%allArgs,\%allDirs,$file); - } - - # Include any entries from sandbox. Generally client won't - # send entries that shouldn't be used. - foreach my $file (keys %{$state->{entries}}) - { - $allArgs{remove_prependdir($file)} = 1; - } - - $state->{dirArgs} = \%allDirs; - $state->{args} = [ - sort { - # Sort priority: by directory depth, then actual file name: - my @piecesA=split('/',$a); - my @piecesB=split('/',$b); - - my $count=scalar(@piecesA); - my $tmp=scalar(@piecesB); - return $count<=>$tmp if($count!=$tmp); - - for($tmp=0;$tmp<$count;$tmp++) - { - if($piecesA[$tmp] ne $piecesB[$tmp]) - { - return $piecesA[$tmp] cmp $piecesB[$tmp] - } - } - return 0; - } keys(%allArgs) ]; -} - -## look up directory sticky tag, of either fullPath or a parent: -sub getDirStickyInfo -{ - my($fullPath)=@_; - - $fullPath=~s%/+$%%; - while($fullPath ne "" && !defined($state->{dirMap}{"$fullPath/"})) - { - $fullPath=~s%/?[^/]*$%%; - } - - if( !defined($state->{dirMap}{"$fullPath/"}) && - ( $fullPath eq "" || - $fullPath eq "." ) ) - { - return $state->{dirMap}{""}{stickyInfo}; - } - else - { - return $state->{dirMap}{"$fullPath/"}{stickyInfo}; - } -} - -# Resolve precedence of various ways of specifying which version of -# a file you want. Returns undef (for default head), or a ref to a hash -# that contains "tag" and/or "date" keys. -sub resolveStickyInfo -{ - my($filename,$stickyTag,$stickyDate,$reset) = @_; - - # Order of precedence of sticky tags: - # -A [head] - # -r /tag/ - # [file entry sticky tag] - # [the tag specified in dir req_Sticky] - # [the tag specified in a parent dir req_Sticky] - # [head] - - my $result; - if($reset) - { - # $result=undef; - } - elsif( defined($stickyTag) && $stickyTag ne "" ) - # || ( defined($stickyDate) && $stickyDate ne "" ) # TODO - { - $result={ 'tag' => (defined($stickyTag)?$stickyTag:undef) }; - - # TODO: Convert -D value into the form 2011.04.10.04.46.57, - # similar to an entry line's sticky date, without the D prefix. - # It sometimes (always?) arrives as something more like - # '10 Apr 2011 04:46:57 -0000'... - # $result={ 'date' => (defined($stickyDate)?$stickyDate:undef) }; - } - elsif( defined($state->{entries}{$filename}) && - defined($state->{entries}{$filename}{tag_or_date}) && - $state->{entries}{$filename}{tag_or_date} ne "" ) - { - my($tagOrDate)=$state->{entries}{$filename}{tag_or_date}; - if($tagOrDate=~/^T([^ ]+)\s*$/) - { - $result = { 'tag' => $1 }; - } - elsif($tagOrDate=~/^D([0-9.]+)\s*$/) - { - $result= { 'date' => $1 }; - } - else - { - die "Unknown tag_or_date format\n"; - } - } - else - { - $result=getDirStickyInfo($filename); - } - - return $result; -} - -# Convert a stickyInfo (ref to a hash) as returned by resolveStickyInfo into -# a form appropriate for the sticky tag field of an Entries -# line (field index 5, 0-based). -sub getStickyTagOrDate -{ - my($stickyInfo)=@_; - - my $result; - if(defined($stickyInfo) && defined($stickyInfo->{tag})) - { - $result="T$stickyInfo->{tag}"; - } - # TODO: When/if we actually pick versions by {date} properly, - # also handle it here: - # "D$stickyInfo->{date}" (example: "D2011.04.13.20.37.07"). - else - { - $result=""; - } - - return $result; -} - -# This method cleans up the $state variable after a command that uses arguments has run -sub statecleanup -{ - $state->{files} = []; - $state->{dirArgs} = {}; - $state->{args} = []; - $state->{arguments} = []; - $state->{entries} = {}; - $state->{dirMap} = {}; -} - -# Return working directory CVS revision "1.X" out -# of the working directory "entries" state, for the given filename. -# This is prefixed with a dash if the file is scheduled for removal -# when it is committed. -sub revparse -{ - my $filename = shift; - - return $state->{entries}{$filename}{revision}; -} - -# This method takes a file hash and does a CVS "file transfer". Its -# exact behaviour depends on a second, optional hash table argument: -# - If $options->{targetfile}, dump the contents to that file; -# - If $options->{print}, use M/MT to transmit the contents one line -# at a time; -# - Otherwise, transmit the size of the file, followed by the file -# contents. -sub transmitfile -{ - my $filehash = shift; - my $options = shift; - - if ( defined ( $filehash ) and $filehash eq "deleted" ) - { - $log->warn("filehash is 'deleted'"); - return; - } - - die "Need filehash" unless ( defined ( $filehash ) and $filehash =~ /^[a-zA-Z0-9]{40}$/ ); - - my $type = safe_pipe_capture('git', 'cat-file', '-t', $filehash); - chomp $type; - - die ( "Invalid type '$type' (expected 'blob')" ) unless ( defined ( $type ) and $type eq "blob" ); - - my $size = safe_pipe_capture('git', 'cat-file', '-s', $filehash); - chomp $size; - - $log->debug("transmitfile($filehash) size=$size, type=$type"); - - if ( open my $fh, '-|', "git", "cat-file", "blob", $filehash ) - { - if ( defined ( $options->{targetfile} ) ) - { - my $targetfile = $options->{targetfile}; - open NEWFILE, ">", $targetfile or die("Couldn't open '$targetfile' for writing : $!"); - print NEWFILE $_ while ( <$fh> ); - close NEWFILE or die("Failed to write '$targetfile': $!"); - } elsif ( defined ( $options->{print} ) && $options->{print} ) { - while ( <$fh> ) { - if( /\n\z/ ) { - print 'M ', $_; - } else { - print 'MT text ', $_, "\n"; - } - } - } else { - print "$size\n"; - print while ( <$fh> ); - } - close $fh or die ("Couldn't close filehandle for transmitfile(): $!"); - } else { - die("Couldn't execute git-cat-file"); - } -} - -# This method takes a file name, and returns ( $dirpart, $filepart ) which -# refers to the directory portion and the file portion of the filename -# respectively -sub filenamesplit -{ - my $filename = shift; - my $fixforlocaldir = shift; - - my ( $filepart, $dirpart ) = ( $filename, "." ); - ( $filepart, $dirpart ) = ( $2, $1 ) if ( $filename =~ /(.*)\/(.*)/ ); - $dirpart .= "/"; - - if ( $fixforlocaldir ) - { - $dirpart =~ s/^$state->{prependdir}//; - } - - return ( $filepart, $dirpart ); -} - -# Cleanup various junk in filename (try to canonicalize it), and -# add prependdir to accommodate running CVS client from a -# subdirectory (so the output is relative to top directory of the project). -sub filecleanup -{ - my $filename = shift; - - return undef unless(defined($filename)); - if ( $filename =~ /^\// ) - { - print "E absolute filenames '$filename' not supported by server\n"; - return undef; - } - - if($filename eq ".") - { - $filename=""; - } - $filename =~ s/^\.\///g; - $filename =~ s%/+%/%g; - $filename = $state->{prependdir} . $filename; - $filename =~ s%/$%%; - return $filename; -} - -# Remove prependdir from the path, so that it is relative to the directory -# the CVS client was started from, rather than the top of the project. -# Essentially the inverse of filecleanup(). -sub remove_prependdir -{ - my($path) = @_; - if(defined($state->{prependdir}) && $state->{prependdir} ne "") - { - my($pre)=$state->{prependdir}; - $pre=~s%/$%%; - if(!($path=~s%^\Q$pre\E/?%%)) - { - $log->fatal("internal error missing prependdir"); - die("internal error missing prependdir"); - } - } - return $path; -} - -sub validateGitDir -{ - if( !defined($state->{CVSROOT}) ) - { - print "error 1 CVSROOT not specified\n"; - cleanupWorkTree(); - exit; - } - if( $ENV{GIT_DIR} ne ($state->{CVSROOT} . '/') ) - { - print "error 1 Internally inconsistent CVSROOT\n"; - cleanupWorkTree(); - exit; - } -} - -# Setup working directory in a work tree with the requested version -# loaded in the index. -sub setupWorkTree -{ - my ($ver) = @_; - - validateGitDir(); - - if( ( defined($work->{state}) && $work->{state} != 1 ) || - defined($work->{tmpDir}) ) - { - $log->warn("Bad work tree state management"); - print "error 1 Internal setup multiple work trees without cleanup\n"; - cleanupWorkTree(); - exit; - } - - $work->{workDir} = tempdir ( DIR => $TEMP_DIR ); - - if( !defined($work->{index}) ) - { - (undef, $work->{index}) = tempfile ( DIR => $TEMP_DIR, OPEN => 0 ); - } - - chdir $work->{workDir} or - die "Unable to chdir to $work->{workDir}\n"; - - $log->info("Setting up GIT_WORK_TREE as '.' in '$work->{workDir}', index file is '$work->{index}'"); - - $ENV{GIT_WORK_TREE} = "."; - $ENV{GIT_INDEX_FILE} = $work->{index}; - $work->{state} = 2; - - if($ver) - { - system("git","read-tree",$ver); - unless ($? == 0) - { - $log->warn("Error running git-read-tree"); - die "Error running git-read-tree $ver in $work->{workDir} $!\n"; - } - } - # else # req_annotate reads tree for each file -} - -# Ensure current directory is in some kind of working directory, -# with a recent version loaded in the index. -sub ensureWorkTree -{ - if( defined($work->{tmpDir}) ) - { - $log->warn("Bad work tree state management [ensureWorkTree()]"); - print "error 1 Internal setup multiple dirs without cleanup\n"; - cleanupWorkTree(); - exit; - } - if( $work->{state} ) - { - return; - } - - validateGitDir(); - - if( !defined($work->{emptyDir}) ) - { - $work->{emptyDir} = tempdir ( DIR => $TEMP_DIR, OPEN => 0); - } - chdir $work->{emptyDir} or - die "Unable to chdir to $work->{emptyDir}\n"; - - my $ver = safe_pipe_capture('git', 'show-ref', '-s', "refs/heads/$state->{module}"); - chomp $ver; - if ($ver !~ /^[0-9a-f]{40}$/) - { - $log->warn("Error from git show-ref -s refs/head$state->{module}"); - print "error 1 cannot find the current HEAD of module"; - cleanupWorkTree(); - exit; - } - - if( !defined($work->{index}) ) - { - (undef, $work->{index}) = tempfile ( DIR => $TEMP_DIR, OPEN => 0 ); - } - - $ENV{GIT_WORK_TREE} = "."; - $ENV{GIT_INDEX_FILE} = $work->{index}; - $work->{state} = 1; - - system("git","read-tree",$ver); - unless ($? == 0) - { - die "Error running git-read-tree $ver $!\n"; - } -} - -# Cleanup working directory that is not needed any longer. -sub cleanupWorkTree -{ - if( ! $work->{state} ) - { - return; - } - - chdir "/" or die "Unable to chdir '/'\n"; - - if( defined($work->{workDir}) ) - { - rmtree( $work->{workDir} ); - undef $work->{workDir}; - } - undef $work->{state}; -} - -# Setup a temporary directory (not a working tree), typically for -# merging dirty state as in req_update. -sub setupTmpDir -{ - $work->{tmpDir} = tempdir ( DIR => $TEMP_DIR ); - chdir $work->{tmpDir} or die "Unable to chdir $work->{tmpDir}\n"; - - return $work->{tmpDir}; -} - -# Clean up a previously setupTmpDir. Restore previous work tree if -# appropriate. -sub cleanupTmpDir -{ - if ( !defined($work->{tmpDir}) ) - { - $log->warn("cleanup tmpdir that has not been setup"); - die "Cleanup tmpDir that has not been setup\n"; - } - if( defined($work->{state}) ) - { - if( $work->{state} == 1 ) - { - chdir $work->{emptyDir} or - die "Unable to chdir to $work->{emptyDir}\n"; - } - elsif( $work->{state} == 2 ) - { - chdir $work->{workDir} or - die "Unable to chdir to $work->{emptyDir}\n"; - } - else - { - $log->warn("Inconsistent work dir state"); - die "Inconsistent work dir state\n"; - } - } - else - { - chdir "/" or die "Unable to chdir '/'\n"; - } -} - -# Given a path, this function returns a string containing the kopts -# that should go into that path's Entries line. For example, a binary -# file should get -kb. -sub kopts_from_path -{ - my ($path, $srcType, $name) = @_; - - if ( defined ( $cfg->{gitcvs}{usecrlfattr} ) and - $cfg->{gitcvs}{usecrlfattr} =~ /\s*(1|true|yes)\s*$/i ) - { - my ($val) = check_attr( "text", $path ); - if ( $val eq "unspecified" ) - { - $val = check_attr( "crlf", $path ); - } - if ( $val eq "unset" ) - { - return "-kb" - } - elsif ( check_attr( "eol", $path ) ne "unspecified" || - $val eq "set" || $val eq "input" ) - { - return ""; - } - else - { - $log->info("Unrecognized check_attr crlf $path : $val"); - } - } - - if ( defined ( $cfg->{gitcvs}{allbinary} ) ) - { - if( ($cfg->{gitcvs}{allbinary} =~ /^\s*(1|true|yes)\s*$/i) ) - { - return "-kb"; - } - elsif( ($cfg->{gitcvs}{allbinary} =~ /^\s*guess\s*$/i) ) - { - if( is_binary($srcType,$name) ) - { - $log->debug("... as binary"); - return "-kb"; - } - else - { - $log->debug("... as text"); - } - } - } - # Return "" to give no special treatment to any path - return ""; -} - -sub check_attr -{ - my ($attr,$path) = @_; - ensureWorkTree(); - if ( open my $fh, '-|', "git", "check-attr", $attr, "--", $path ) - { - my $val = <$fh>; - close $fh; - $val =~ s/.*: ([^:\r\n]*)\s*$/$1/; - return $val; - } - else - { - return undef; - } -} - -# This should have the same heuristics as convert.c:is_binary() and related. -# Note that the bare CR test is done by callers in convert.c. -sub is_binary -{ - my ($srcType,$name) = @_; - $log->debug("is_binary($srcType,$name)"); - - # Minimize amount of interpreted code run in the inner per-character - # loop for large files, by totalling each character value and - # then analyzing the totals. - my @counts; - my $i; - for($i=0;$i<256;$i++) - { - $counts[$i]=0; - } - - my $fh = open_blob_or_die($srcType,$name); - my $line; - while( defined($line=<$fh>) ) - { - # Any '\0' and bare CR are considered binary. - if( $line =~ /\0|(\r[^\n])/ ) - { - close($fh); - return 1; - } - - # Count up each character in the line: - my $len=length($line); - for($i=0;$i<$len;$i++) - { - $counts[ord(substr($line,$i,1))]++; - } - } - close $fh; - - # Don't count CR and LF as either printable/nonprintable - $counts[ord("\n")]=0; - $counts[ord("\r")]=0; - - # Categorize individual character count into printable and nonprintable: - my $printable=0; - my $nonprintable=0; - for($i=0;$i<256;$i++) - { - if( $i < 32 && - $i != ord("\b") && - $i != ord("\t") && - $i != 033 && # ESC - $i != 014 ) # FF - { - $nonprintable+=$counts[$i]; - } - elsif( $i==127 ) # DEL - { - $nonprintable+=$counts[$i]; - } - else - { - $printable+=$counts[$i]; - } - } - - return ($printable >> 7) < $nonprintable; -} - -# Returns open file handle. Possible invocations: -# - open_blob_or_die("file",$filename); -# - open_blob_or_die("sha1",$filehash); -sub open_blob_or_die -{ - my ($srcType,$name) = @_; - my ($fh); - if( $srcType eq "file" ) - { - if( !open $fh,"<",$name ) - { - $log->warn("Unable to open file $name: $!"); - die "Unable to open file $name: $!\n"; - } - } - elsif( $srcType eq "sha1" ) - { - unless ( defined ( $name ) and $name =~ /^[a-zA-Z0-9]{40}$/ ) - { - $log->warn("Need filehash"); - die "Need filehash\n"; - } - - my $type = safe_pipe_capture('git', 'cat-file', '-t', $name); - chomp $type; - - unless ( defined ( $type ) and $type eq "blob" ) - { - $log->warn("Invalid type '$type' for '$name'"); - die ( "Invalid type '$type' (expected 'blob')" ) - } - - my $size = safe_pipe_capture('git', 'cat-file', '-s', $name); - chomp $size; - - $log->debug("open_blob_or_die($name) size=$size, type=$type"); - - unless( open $fh, '-|', "git", "cat-file", "blob", $name ) - { - $log->warn("Unable to open sha1 $name"); - die "Unable to open sha1 $name\n"; - } - } - else - { - $log->warn("Unknown type of blob source: $srcType"); - die "Unknown type of blob source: $srcType\n"; - } - return $fh; -} - -# Generate a CVS author name from Git author information, by taking the local -# part of the email address and replacing characters not in the Portable -# Filename Character Set (see IEEE Std 1003.1-2001, 3.276) by underscores. CVS -# Login names are Unix login names, which should be restricted to this -# character set. -sub cvs_author -{ - my $author_line = shift; - (my $author) = $author_line =~ /<([^@>]*)/; - - $author =~ s/[^-a-zA-Z0-9_.]/_/g; - $author =~ s/^-/_/; - - $author; -} - - -sub descramble -{ - # This table is from src/scramble.c in the CVS source - my @SHIFTS = ( - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, - 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 114,120, 53, 79, 96,109, 72,108, 70, 64, 76, 67,116, 74, 68, 87, - 111, 52, 75,119, 49, 34, 82, 81, 95, 65,112, 86,118,110,122,105, - 41, 57, 83, 43, 46,102, 40, 89, 38,103, 45, 50, 42,123, 91, 35, - 125, 55, 54, 66,124,126, 59, 47, 92, 71,115, 78, 88,107,106, 56, - 36,121,117,104,101,100, 69, 73, 99, 63, 94, 93, 39, 37, 61, 48, - 58,113, 32, 90, 44, 98, 60, 51, 33, 97, 62, 77, 84, 80, 85,223, - 225,216,187,166,229,189,222,188,141,249,148,200,184,136,248,190, - 199,170,181,204,138,232,218,183,255,234,220,247,213,203,226,193, - 174,172,228,252,217,201,131,230,197,211,145,238,161,179,160,212, - 207,221,254,173,202,146,224,151,140,196,205,130,135,133,143,246, - 192,159,244,239,185,168,215,144,139,165,180,157,147,186,214,176, - 227,231,219,169,175,156,206,198,129,164,150,210,154,177,134,127, - 182,128,158,208,162,132,167,209,149,241,153,251,237,236,171,195, - 243,233,253,240,194,250,191,155,142,137,245,235,163,242,178,152 - ); - my ($str) = @_; - - # This should never happen, the same password format (A) has been - # used by CVS since the beginning of time - { - my $fmt = substr($str, 0, 1); - die "invalid password format `$fmt'" unless $fmt eq 'A'; - } - - my @str = unpack "C*", substr($str, 1); - my $ret = join '', map { chr $SHIFTS[$_] } @str; - return $ret; -} - -# Test if the (deep) values of two references to a hash are the same. -sub refHashEqual -{ - my($v1,$v2) = @_; - - my $out; - if(!defined($v1)) - { - if(!defined($v2)) - { - $out=1; - } - } - elsif( !defined($v2) || - scalar(keys(%{$v1})) != scalar(keys(%{$v2})) ) - { - # $out=undef; - } - else - { - $out=1; - - my $key; - foreach $key (keys(%{$v1})) - { - if( !exists($v2->{$key}) || - defined($v1->{$key}) ne defined($v2->{$key}) || - ( defined($v1->{$key}) && - $v1->{$key} ne $v2->{$key} ) ) - { - $out=undef; - last; - } - } - } - - return $out; -} - -# an alternative to `command` that allows input to be passed as an array -# to work around shell problems with weird characters in arguments - -sub safe_pipe_capture { - - my @output; - - if (my $pid = open my $child, '-|') { - @output = (<$child>); - close $child or die join(' ',@_).": $! $?"; - } else { - exec(@_) or die "$! $?"; # exec() can fail the executable can't be found - } - return wantarray ? @output : join('',@output); -} - - -package GITCVS::log; - -#### -#### Copyright The Open University UK - 2006. -#### -#### Authors: Martyn Smith <martyn@catalyst.net.nz> -#### Martin Langhoff <martin@laptop.org> -#### -#### - -use strict; -use warnings; - -=head1 NAME - -GITCVS::log - -=head1 DESCRIPTION - -This module provides very crude logging with a similar interface to -Log::Log4perl - -=head1 METHODS - -=cut - -=head2 new - -Creates a new log object, optionally you can specify a filename here to -indicate the file to log to. If no log file is specified, you can specify one -later with method setfile, or indicate you no longer want logging with method -nofile. - -Until one of these methods is called, all log calls will buffer messages ready -to write out. - -=cut -sub new -{ - my $class = shift; - my $filename = shift; - - my $self = {}; - - bless $self, $class; - - if ( defined ( $filename ) ) - { - open $self->{fh}, ">>", $filename or die("Couldn't open '$filename' for writing : $!"); - } - - return $self; -} - -=head2 setfile - -This methods takes a filename, and attempts to open that file as the log file. -If successful, all buffered data is written out to the file, and any further -logging is written directly to the file. - -=cut -sub setfile -{ - my $self = shift; - my $filename = shift; - - if ( defined ( $filename ) ) - { - open $self->{fh}, ">>", $filename or die("Couldn't open '$filename' for writing : $!"); - } - - return unless ( defined ( $self->{buffer} ) and ref $self->{buffer} eq "ARRAY" ); - - while ( my $line = shift @{$self->{buffer}} ) - { - print {$self->{fh}} $line; - } -} - -=head2 nofile - -This method indicates no logging is going to be used. It flushes any entries in -the internal buffer, and sets a flag to ensure no further data is put there. - -=cut -sub nofile -{ - my $self = shift; - - $self->{nolog} = 1; - - return unless ( defined ( $self->{buffer} ) and ref $self->{buffer} eq "ARRAY" ); - - $self->{buffer} = []; -} - -=head2 _logopen - -Internal method. Returns true if the log file is open, false otherwise. - -=cut -sub _logopen -{ - my $self = shift; - - return 1 if ( defined ( $self->{fh} ) and ref $self->{fh} eq "GLOB" ); - return 0; -} - -=head2 debug info warn fatal - -These four methods are wrappers to _log. They provide the actual interface for -logging data. - -=cut -sub debug { my $self = shift; $self->_log("debug", @_); } -sub info { my $self = shift; $self->_log("info" , @_); } -sub warn { my $self = shift; $self->_log("warn" , @_); } -sub fatal { my $self = shift; $self->_log("fatal", @_); } - -=head2 _log - -This is an internal method called by the logging functions. It generates a -timestamp and pushes the logged line either to file, or internal buffer. - -=cut -sub _log -{ - my $self = shift; - my $level = shift; - - return if ( $self->{nolog} ); - - my @time = localtime; - my $timestring = sprintf("%4d-%02d-%02d %02d:%02d:%02d : %-5s", - $time[5] + 1900, - $time[4] + 1, - $time[3], - $time[2], - $time[1], - $time[0], - uc $level, - ); - - if ( $self->_logopen ) - { - print {$self->{fh}} $timestring . " - " . join(" ",@_) . "\n"; - } else { - push @{$self->{buffer}}, $timestring . " - " . join(" ",@_) . "\n"; - } -} - -=head2 DESTROY - -This method simply closes the file handle if one is open - -=cut -sub DESTROY -{ - my $self = shift; - - if ( $self->_logopen ) - { - close $self->{fh}; - } -} - -package GITCVS::updater; - -#### -#### Copyright The Open University UK - 2006. -#### -#### Authors: Martyn Smith <martyn@catalyst.net.nz> -#### Martin Langhoff <martin@laptop.org> -#### -#### - -use strict; -use warnings; -use DBI; - -=head1 METHODS - -=cut - -=head2 new - -=cut -sub new -{ - my $class = shift; - my $config = shift; - my $module = shift; - my $log = shift; - - die "Need to specify a git repository" unless ( defined($config) and -d $config ); - die "Need to specify a module" unless ( defined($module) ); - - $class = ref($class) || $class; - - my $self = {}; - - bless $self, $class; - - $self->{valid_tables} = {'revision' => 1, - 'revision_ix1' => 1, - 'revision_ix2' => 1, - 'head' => 1, - 'head_ix1' => 1, - 'properties' => 1, - 'commitmsgs' => 1}; - - $self->{module} = $module; - $self->{git_path} = $config . "/"; - - $self->{log} = $log; - - die "Git repo '$self->{git_path}' doesn't exist" unless ( -d $self->{git_path} ); - - # Stores full sha1's for various branch/tag names, abbreviations, etc: - $self->{commitRefCache} = {}; - - $self->{dbdriver} = $cfg->{gitcvs}{$state->{method}}{dbdriver} || - $cfg->{gitcvs}{dbdriver} || "SQLite"; - $self->{dbname} = $cfg->{gitcvs}{$state->{method}}{dbname} || - $cfg->{gitcvs}{dbname} || "%Ggitcvs.%m.sqlite"; - $self->{dbuser} = $cfg->{gitcvs}{$state->{method}}{dbuser} || - $cfg->{gitcvs}{dbuser} || ""; - $self->{dbpass} = $cfg->{gitcvs}{$state->{method}}{dbpass} || - $cfg->{gitcvs}{dbpass} || ""; - $self->{dbtablenameprefix} = $cfg->{gitcvs}{$state->{method}}{dbtablenameprefix} || - $cfg->{gitcvs}{dbtablenameprefix} || ""; - my %mapping = ( m => $module, - a => $state->{method}, - u => getlogin || getpwuid($<) || $<, - G => $self->{git_path}, - g => mangle_dirname($self->{git_path}), - ); - $self->{dbname} =~ s/%([mauGg])/$mapping{$1}/eg; - $self->{dbuser} =~ s/%([mauGg])/$mapping{$1}/eg; - $self->{dbtablenameprefix} =~ s/%([mauGg])/$mapping{$1}/eg; - $self->{dbtablenameprefix} = mangle_tablename($self->{dbtablenameprefix}); - - die "Invalid char ':' in dbdriver" if $self->{dbdriver} =~ /:/; - die "Invalid char ';' in dbname" if $self->{dbname} =~ /;/; - $self->{dbh} = DBI->connect("dbi:$self->{dbdriver}:dbname=$self->{dbname}", - $self->{dbuser}, - $self->{dbpass}); - die "Error connecting to database\n" unless defined $self->{dbh}; - - $self->{tables} = {}; - foreach my $table ( keys %{$self->{dbh}->table_info(undef,undef,undef,'TABLE')->fetchall_hashref('TABLE_NAME')} ) - { - $self->{tables}{$table} = 1; - } - - # Construct the revision table if required - # The revision table stores an entry for each file, each time that file - # changes. - # numberOfRecords = O( numCommits * averageNumChangedFilesPerCommit ) - # This is not sufficient to support "-r {commithash}" for any - # files except files that were modified by that commit (also, - # some places in the code ignore/effectively strip out -r in - # some cases, before it gets passed to getmeta()). - # The "filehash" field typically has a git blob hash, but can also - # be set to "dead" to indicate that the given version of the file - # should not exist in the sandbox. - unless ( $self->{tables}{$self->tablename("revision")} ) - { - my $tablename = $self->tablename("revision"); - my $ix1name = $self->tablename("revision_ix1"); - my $ix2name = $self->tablename("revision_ix2"); - $self->{dbh}->do(" - CREATE TABLE $tablename ( - name TEXT NOT NULL, - revision INTEGER NOT NULL, - filehash TEXT NOT NULL, - commithash TEXT NOT NULL, - author TEXT NOT NULL, - modified TEXT NOT NULL, - mode TEXT NOT NULL - ) - "); - $self->{dbh}->do(" - CREATE INDEX $ix1name - ON $tablename (name,revision) - "); - $self->{dbh}->do(" - CREATE INDEX $ix2name - ON $tablename (name,commithash) - "); - } - - # Construct the head table if required - # The head table (along with the "last_commit" entry in the property - # table) is the persisted working state of the "sub update" subroutine. - # All of it's data is read entirely first, and completely recreated - # last, every time "sub update" runs. - # This is also used by "sub getmeta" when it is asked for the latest - # version of a file (as opposed to some specific version). - # Another way of thinking about it is as a single slice out of - # "revisions", giving just the most recent revision information for - # each file. - unless ( $self->{tables}{$self->tablename("head")} ) - { - my $tablename = $self->tablename("head"); - my $ix1name = $self->tablename("head_ix1"); - $self->{dbh}->do(" - CREATE TABLE $tablename ( - name TEXT NOT NULL, - revision INTEGER NOT NULL, - filehash TEXT NOT NULL, - commithash TEXT NOT NULL, - author TEXT NOT NULL, - modified TEXT NOT NULL, - mode TEXT NOT NULL - ) - "); - $self->{dbh}->do(" - CREATE INDEX $ix1name - ON $tablename (name) - "); - } - - # Construct the properties table if required - # - "last_commit" - Used by "sub update". - unless ( $self->{tables}{$self->tablename("properties")} ) - { - my $tablename = $self->tablename("properties"); - $self->{dbh}->do(" - CREATE TABLE $tablename ( - key TEXT NOT NULL PRIMARY KEY, - value TEXT - ) - "); - } - - # Construct the commitmsgs table if required - # The commitmsgs table is only used for merge commits, since - # "sub update" will only keep one branch of parents. Shortlogs - # for ignored commits (i.e. not on the chosen branch) will be used - # to construct a replacement "collapsed" merge commit message, - # which will be stored in this table. See also "sub commitmessage". - unless ( $self->{tables}{$self->tablename("commitmsgs")} ) - { - my $tablename = $self->tablename("commitmsgs"); - $self->{dbh}->do(" - CREATE TABLE $tablename ( - key TEXT NOT NULL PRIMARY KEY, - value TEXT - ) - "); - } - - return $self; -} - -=head2 tablename - -=cut -sub tablename -{ - my $self = shift; - my $name = shift; - - if (exists $self->{valid_tables}{$name}) { - return $self->{dbtablenameprefix} . $name; - } else { - return undef; - } -} - -=head2 update - -Bring the database up to date with the latest changes from -the git repository. - -Internal working state is read out of the "head" table and the -"last_commit" property, then it updates "revisions" based on that, and -finally it writes the new internal state back to the "head" table -so it can be used as a starting point the next time update is called. - -=cut -sub update -{ - my $self = shift; - - # first lets get the commit list - $ENV{GIT_DIR} = $self->{git_path}; - - my $commitsha1 = ::safe_pipe_capture('git', 'rev-parse', $self->{module}); - chomp $commitsha1; - - my $commitinfo = ::safe_pipe_capture('git', 'cat-file', 'commit', $self->{module}); - unless ( $commitinfo =~ /tree\s+[a-zA-Z0-9]{40}/ ) - { - die("Invalid module '$self->{module}'"); - } - - - my $git_log; - my $lastcommit = $self->_get_prop("last_commit"); - - if (defined $lastcommit && $lastcommit eq $commitsha1) { # up-to-date - # invalidate the gethead cache - $self->clearCommitRefCaches(); - return 1; - } - - # Start exclusive lock here... - $self->{dbh}->begin_work() or die "Cannot lock database for BEGIN"; - - # TODO: log processing is memory bound - # if we can parse into a 2nd file that is in reverse order - # we can probably do something really efficient - my @git_log_params = ('--pretty', '--parents', '--topo-order'); - - if (defined $lastcommit) { - push @git_log_params, "$lastcommit..$self->{module}"; - } else { - push @git_log_params, $self->{module}; - } - # git-rev-list is the backend / plumbing version of git-log - open(my $gitLogPipe, '-|', 'git', 'rev-list', @git_log_params) - or die "Cannot call git-rev-list: $!"; - my @commits=readCommits($gitLogPipe); - close $gitLogPipe; - - # Now all the commits are in the @commits bucket - # ordered by time DESC. for each commit that needs processing, - # determine whether it's following the last head we've seen or if - # it's on its own branch, grab a file list, and add whatever's changed - # NOTE: $lastcommit refers to the last commit from previous run - # $lastpicked is the last commit we picked in this run - my $lastpicked; - my $head = {}; - if (defined $lastcommit) { - $lastpicked = $lastcommit; - } - - my $committotal = scalar(@commits); - my $commitcount = 0; - - # Load the head table into $head (for cached lookups during the update process) - foreach my $file ( @{$self->gethead(1)} ) - { - $head->{$file->{name}} = $file; - } - - foreach my $commit ( @commits ) - { - $self->{log}->debug("GITCVS::updater - Processing commit $commit->{hash} (" . (++$commitcount) . " of $committotal)"); - if (defined $lastpicked) - { - if (!in_array($lastpicked, @{$commit->{parents}})) - { - # skip, we'll see this delta - # as part of a merge later - # warn "skipping off-track $commit->{hash}\n"; - next; - } elsif (@{$commit->{parents}} > 1) { - # it is a merge commit, for each parent that is - # not $lastpicked (not given a CVS revision number), - # see if we can get a log - # from the merge-base to that parent to put it - # in the message as a merge summary. - my @parents = @{$commit->{parents}}; - foreach my $parent (@parents) { - if ($parent eq $lastpicked) { - next; - } - # git-merge-base can potentially (but rarely) throw - # several candidate merge bases. let's assume - # that the first one is the best one. - my $base = eval { - ::safe_pipe_capture('git', 'merge-base', - $lastpicked, $parent); - }; - # The two branches may not be related at all, - # in which case merge base simply fails to find - # any, but that's Ok. - next if ($@); - - chomp $base; - if ($base) { - my @merged; - # print "want to log between $base $parent \n"; - open(GITLOG, '-|', 'git', 'log', '--pretty=medium', "$base..$parent") - or die "Cannot call git-log: $!"; - my $mergedhash; - while (<GITLOG>) { - chomp; - if (!defined $mergedhash) { - if (m/^commit\s+(.+)$/) { - $mergedhash = $1; - } else { - next; - } - } else { - # grab the first line that looks non-rfc822 - # aka has content after leading space - if (m/^\s+(\S.*)$/) { - my $title = $1; - $title = substr($title,0,100); # truncate - unshift @merged, "$mergedhash $title"; - undef $mergedhash; - } - } - } - close GITLOG; - if (@merged) { - $commit->{mergemsg} = $commit->{message}; - $commit->{mergemsg} .= "\nSummary of merged commits:\n\n"; - foreach my $summary (@merged) { - $commit->{mergemsg} .= "\t$summary\n"; - } - $commit->{mergemsg} .= "\n\n"; - # print "Message for $commit->{hash} \n$commit->{mergemsg}"; - } - } - } - } - } - - # convert the date to CVS-happy format - my $cvsDate = convertToCvsDate($commit->{date}); - - if ( defined ( $lastpicked ) ) - { - my $filepipe = open(FILELIST, '-|', 'git', 'diff-tree', '-z', '-r', $lastpicked, $commit->{hash}) or die("Cannot call git-diff-tree : $!"); - local ($/) = "\0"; - while ( <FILELIST> ) - { - chomp; - unless ( /^:\d{6}\s+([0-7]{6})\s+[a-f0-9]{40}\s+([a-f0-9]{40})\s+(\w)$/o ) - { - die("Couldn't process git-diff-tree line : $_"); - } - my ($mode, $hash, $change) = ($1, $2, $3); - my $name = <FILELIST>; - chomp($name); - - # $log->debug("File mode=$mode, hash=$hash, change=$change, name=$name"); - - my $dbMode = convertToDbMode($mode); - - if ( $change eq "D" ) - { - #$log->debug("DELETE $name"); - $head->{$name} = { - name => $name, - revision => $head->{$name}{revision} + 1, - filehash => "deleted", - commithash => $commit->{hash}, - modified => $cvsDate, - author => $commit->{author}, - mode => $dbMode, - }; - $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode); - } - elsif ( $change eq "M" || $change eq "T" ) - { - #$log->debug("MODIFIED $name"); - $head->{$name} = { - name => $name, - revision => $head->{$name}{revision} + 1, - filehash => $hash, - commithash => $commit->{hash}, - modified => $cvsDate, - author => $commit->{author}, - mode => $dbMode, - }; - $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode); - } - elsif ( $change eq "A" ) - { - #$log->debug("ADDED $name"); - $head->{$name} = { - name => $name, - revision => $head->{$name}{revision} ? $head->{$name}{revision}+1 : 1, - filehash => $hash, - commithash => $commit->{hash}, - modified => $cvsDate, - author => $commit->{author}, - mode => $dbMode, - }; - $self->insert_rev($name, $head->{$name}{revision}, $hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode); - } - else - { - $log->warn("UNKNOWN FILE CHANGE mode=$mode, hash=$hash, change=$change, name=$name"); - die; - } - } - close FILELIST; - } else { - # this is used to detect files removed from the repo - my $seen_files = {}; - - my $filepipe = open(FILELIST, '-|', 'git', 'ls-tree', '-z', '-r', $commit->{hash}) or die("Cannot call git-ls-tree : $!"); - local $/ = "\0"; - while ( <FILELIST> ) - { - chomp; - unless ( /^(\d+)\s+(\w+)\s+([a-zA-Z0-9]+)\t(.*)$/o ) - { - die("Couldn't process git-ls-tree line : $_"); - } - - my ( $mode, $git_type, $git_hash, $git_filename ) = ( $1, $2, $3, $4 ); - - $seen_files->{$git_filename} = 1; - - my ( $oldhash, $oldrevision, $oldmode ) = ( - $head->{$git_filename}{filehash}, - $head->{$git_filename}{revision}, - $head->{$git_filename}{mode} - ); - - my $dbMode = convertToDbMode($mode); - - # unless the file exists with the same hash, we need to update it ... - unless ( defined($oldhash) and $oldhash eq $git_hash and defined($oldmode) and $oldmode eq $dbMode ) - { - my $newrevision = ( $oldrevision or 0 ) + 1; - - $head->{$git_filename} = { - name => $git_filename, - revision => $newrevision, - filehash => $git_hash, - commithash => $commit->{hash}, - modified => $cvsDate, - author => $commit->{author}, - mode => $dbMode, - }; - - - $self->insert_rev($git_filename, $newrevision, $git_hash, $commit->{hash}, $cvsDate, $commit->{author}, $dbMode); - } - } - close FILELIST; - - # Detect deleted files - foreach my $file ( sort keys %$head ) - { - unless ( exists $seen_files->{$file} or $head->{$file}{filehash} eq "deleted" ) - { - $head->{$file}{revision}++; - $head->{$file}{filehash} = "deleted"; - $head->{$file}{commithash} = $commit->{hash}; - $head->{$file}{modified} = $cvsDate; - $head->{$file}{author} = $commit->{author}; - - $self->insert_rev($file, $head->{$file}{revision}, $head->{$file}{filehash}, $commit->{hash}, $cvsDate, $commit->{author}, $head->{$file}{mode}); - } - } - # END : "Detect deleted files" - } - - - if (exists $commit->{mergemsg}) - { - $self->insert_mergelog($commit->{hash}, $commit->{mergemsg}); - } - - $lastpicked = $commit->{hash}; - - $self->_set_prop("last_commit", $commit->{hash}); - } - - $self->delete_head(); - foreach my $file ( sort keys %$head ) - { - $self->insert_head( - $file, - $head->{$file}{revision}, - $head->{$file}{filehash}, - $head->{$file}{commithash}, - $head->{$file}{modified}, - $head->{$file}{author}, - $head->{$file}{mode}, - ); - } - # invalidate the gethead cache - $self->clearCommitRefCaches(); - - - # Ending exclusive lock here - $self->{dbh}->commit() or die "Failed to commit changes to SQLite"; -} - -sub readCommits -{ - my $pipeHandle = shift; - my @commits; - - my %commit = (); - - while ( <$pipeHandle> ) - { - chomp; - if (m/^commit\s+(.*)$/) { - # on ^commit lines put the just seen commit in the stack - # and prime things for the next one - if (keys %commit) { - my %copy = %commit; - unshift @commits, \%copy; - %commit = (); - } - my @parents = split(m/\s+/, $1); - $commit{hash} = shift @parents; - $commit{parents} = \@parents; - } elsif (m/^(\w+?):\s+(.*)$/ && !exists($commit{message})) { - # on rfc822-like lines seen before we see any message, - # lowercase the entry and put it in the hash as key-value - $commit{lc($1)} = $2; - } else { - # message lines - skip initial empty line - # and trim whitespace - if (!exists($commit{message}) && m/^\s*$/) { - # define it to mark the end of headers - $commit{message} = ''; - next; - } - s/^\s+//; s/\s+$//; # trim ws - $commit{message} .= $_ . "\n"; - } - } - - unshift @commits, \%commit if ( keys %commit ); - - return @commits; -} - -sub convertToCvsDate -{ - my $date = shift; - # Convert from: "git rev-list --pretty" formatted date - # Convert to: "the format specified by RFC822 as modified by RFC1123." - # Example: 26 May 1997 13:01:40 -0400 - if( $date =~ /^\w+\s+(\w+)\s+(\d+)\s+(\d+:\d+:\d+)\s+(\d+)\s+([+-]\d+)$/ ) - { - $date = "$2 $1 $4 $3 $5"; - } - - return $date; -} - -sub convertToDbMode -{ - my $mode = shift; - - # NOTE: The CVS protocol uses a string similar "u=rw,g=rw,o=rw", - # but the database "mode" column historically (and currently) - # only stores the "rw" (for user) part of the string. - # FUTURE: It might make more sense to persist the raw - # octal mode (or perhaps the final full CVS form) instead of - # this half-converted form, but it isn't currently worth the - # backwards compatibility headaches. - - $mode=~/^\d{3}(\d)\d\d$/; - my $userBits=$1; - - my $dbMode = ""; - $dbMode .= "r" if ( $userBits & 4 ); - $dbMode .= "w" if ( $userBits & 2 ); - $dbMode .= "x" if ( $userBits & 1 ); - $dbMode = "rw" if ( $dbMode eq "" ); - - return $dbMode; -} - -sub insert_rev -{ - my $self = shift; - my $name = shift; - my $revision = shift; - my $filehash = shift; - my $commithash = shift; - my $modified = shift; - my $author = shift; - my $mode = shift; - my $tablename = $self->tablename("revision"); - - my $insert_rev = $self->{dbh}->prepare_cached("INSERT INTO $tablename (name, revision, filehash, commithash, modified, author, mode) VALUES (?,?,?,?,?,?,?)",{},1); - $insert_rev->execute($name, $revision, $filehash, $commithash, $modified, $author, $mode); -} - -sub insert_mergelog -{ - my $self = shift; - my $key = shift; - my $value = shift; - my $tablename = $self->tablename("commitmsgs"); - - my $insert_mergelog = $self->{dbh}->prepare_cached("INSERT INTO $tablename (key, value) VALUES (?,?)",{},1); - $insert_mergelog->execute($key, $value); -} - -sub delete_head -{ - my $self = shift; - my $tablename = $self->tablename("head"); - - my $delete_head = $self->{dbh}->prepare_cached("DELETE FROM $tablename",{},1); - $delete_head->execute(); -} - -sub insert_head -{ - my $self = shift; - my $name = shift; - my $revision = shift; - my $filehash = shift; - my $commithash = shift; - my $modified = shift; - my $author = shift; - my $mode = shift; - my $tablename = $self->tablename("head"); - - my $insert_head = $self->{dbh}->prepare_cached("INSERT INTO $tablename (name, revision, filehash, commithash, modified, author, mode) VALUES (?,?,?,?,?,?,?)",{},1); - $insert_head->execute($name, $revision, $filehash, $commithash, $modified, $author, $mode); -} - -sub _get_prop -{ - my $self = shift; - my $key = shift; - my $tablename = $self->tablename("properties"); - - my $db_query = $self->{dbh}->prepare_cached("SELECT value FROM $tablename WHERE key=?",{},1); - $db_query->execute($key); - my ( $value ) = $db_query->fetchrow_array; - - return $value; -} - -sub _set_prop -{ - my $self = shift; - my $key = shift; - my $value = shift; - my $tablename = $self->tablename("properties"); - - my $db_query = $self->{dbh}->prepare_cached("UPDATE $tablename SET value=? WHERE key=?",{},1); - $db_query->execute($value, $key); - - unless ( $db_query->rows ) - { - $db_query = $self->{dbh}->prepare_cached("INSERT INTO $tablename (key, value) VALUES (?,?)",{},1); - $db_query->execute($key, $value); - } - - return $value; -} - -=head2 gethead - -=cut - -sub gethead -{ - my $self = shift; - my $intRev = shift; - my $tablename = $self->tablename("head"); - - return $self->{gethead_cache} if ( defined ( $self->{gethead_cache} ) ); - - my $db_query = $self->{dbh}->prepare_cached("SELECT name, filehash, mode, revision, modified, commithash, author FROM $tablename ORDER BY name ASC",{},1); - $db_query->execute(); - - my $tree = []; - while ( my $file = $db_query->fetchrow_hashref ) - { - if(!$intRev) - { - $file->{revision} = "1.$file->{revision}" - } - push @$tree, $file; - } - - $self->{gethead_cache} = $tree; - - return $tree; -} - -=head2 getAnyHead - -Returns a reference to an array of getmeta structures, one -per file in the specified tree hash. - -=cut - -sub getAnyHead -{ - my ($self,$hash) = @_; - - if(!defined($hash)) - { - return $self->gethead(); - } - - my @files; - { - open(my $filePipe, '-|', 'git', 'ls-tree', '-z', '-r', $hash) - or die("Cannot call git-ls-tree : $!"); - local $/ = "\0"; - @files=<$filePipe>; - close $filePipe; - } - - my $tree=[]; - my($line); - foreach $line (@files) - { - $line=~s/\0$//; - unless ( $line=~/^(\d+)\s+(\w+)\s+([a-zA-Z0-9]+)\t(.*)$/o ) - { - die("Couldn't process git-ls-tree line : $_"); - } - - my($mode, $git_type, $git_hash, $git_filename) = ($1, $2, $3, $4); - push @$tree, $self->getMetaFromCommithash($git_filename,$hash); - } - - return $tree; -} - -=head2 getRevisionDirMap - -A "revision dir map" contains all the plain-file filenames associated -with a particular revision (tree-ish), organized by directory: - - $type = $out->{$dir}{$fullName} - -The type of each is "F" (for ordinary file) or "D" (for directory, -for which the map $out->{$fullName} will also exist). - -=cut - -sub getRevisionDirMap -{ - my ($self,$ver)=@_; - - if(!defined($self->{revisionDirMapCache})) - { - $self->{revisionDirMapCache}={}; - } - - # Get file list (previously cached results are dependent on HEAD, - # but are early in each case): - my $cacheKey; - my (@fileList); - if( !defined($ver) || $ver eq "" ) - { - $cacheKey=""; - if( defined($self->{revisionDirMapCache}{$cacheKey}) ) - { - return $self->{revisionDirMapCache}{$cacheKey}; - } - - my @head = @{$self->gethead()}; - foreach my $file ( @head ) - { - next if ( $file->{filehash} eq "deleted" ); - - push @fileList,$file->{name}; - } - } - else - { - my ($hash)=$self->lookupCommitRef($ver); - if( !defined($hash) ) - { - return undef; - } - - $cacheKey=$hash; - if( defined($self->{revisionDirMapCache}{$cacheKey}) ) - { - return $self->{revisionDirMapCache}{$cacheKey}; - } - - open(my $filePipe, '-|', 'git', 'ls-tree', '-z', '-r', $hash) - or die("Cannot call git-ls-tree : $!"); - local $/ = "\0"; - while ( <$filePipe> ) - { - chomp; - unless ( /^(\d+)\s+(\w+)\s+([a-zA-Z0-9]+)\t(.*)$/o ) - { - die("Couldn't process git-ls-tree line : $_"); - } - - my($mode, $git_type, $git_hash, $git_filename) = ($1, $2, $3, $4); - - push @fileList, $git_filename; - } - close $filePipe; - } - - # Convert to normalized form: - my %revMap; - my $file; - foreach $file (@fileList) - { - my($dir) = ($file=~m%^(?:(.*)/)?([^/]*)$%); - $dir='' if(!defined($dir)); - - # parent directories: - # ... create empty dir maps for parent dirs: - my($td)=$dir; - while(!defined($revMap{$td})) - { - $revMap{$td}={}; - - my($tp)=($td=~m%^(?:(.*)/)?([^/]*)$%); - $tp='' if(!defined($tp)); - $td=$tp; - } - # ... add children to parent maps (now that they exist): - $td=$dir; - while($td ne "") - { - my($tp)=($td=~m%^(?:(.*)/)?([^/]*)$%); - $tp='' if(!defined($tp)); - - if(defined($revMap{$tp}{$td})) - { - if($revMap{$tp}{$td} ne 'D') - { - die "Weird file/directory inconsistency in $cacheKey"; - } - last; # loop exit - } - $revMap{$tp}{$td}='D'; - - $td=$tp; - } - - # file - $revMap{$dir}{$file}='F'; - } - - # Save in cache: - $self->{revisionDirMapCache}{$cacheKey}=\%revMap; - return $self->{revisionDirMapCache}{$cacheKey}; -} - -=head2 getlog - -See also gethistorydense(). - -=cut - -sub getlog -{ - my $self = shift; - my $filename = shift; - my $revFilter = shift; - - my $tablename = $self->tablename("revision"); - - # Filters: - # TODO: date, state, or by specific logins filters? - # TODO: Handle comma-separated list of revFilter items, each item - # can be a range [only case currently handled] or individual - # rev or branch or "branch.". - # TODO: Adjust $db_query WHERE clause based on revFilter, instead of - # manually filtering the results of the query? - my ( $minrev, $maxrev ); - if( defined($revFilter) and - $state->{opt}{r} =~ /^(1.(\d+))?(::?)(1.(\d.+))?$/ ) - { - my $control = $3; - $minrev = $2; - $maxrev = $5; - $minrev++ if ( defined($minrev) and $control eq "::" ); - } - - my $db_query = $self->{dbh}->prepare_cached("SELECT name, filehash, author, mode, revision, modified, commithash FROM $tablename WHERE name=? ORDER BY revision DESC",{},1); - $db_query->execute($filename); - - my $totalRevs=0; - my $tree = []; - while ( my $file = $db_query->fetchrow_hashref ) - { - $totalRevs++; - if( defined($minrev) and $file->{revision} < $minrev ) - { - next; - } - if( defined($maxrev) and $file->{revision} > $maxrev ) - { - next; - } - - $file->{revision} = "1." . $file->{revision}; - push @$tree, $file; - } - - return ($tree,$totalRevs); -} - -=head2 getmeta - -This function takes a filename (with path) argument and returns a hashref of -metadata for that file. - -There are several ways $revision can be specified: - - - A reference to hash that contains a "tag" that is the - actual revision (one of the below). TODO: Also allow it to - specify a "date" in the hash. - - undef, to refer to the latest version on the main branch. - - Full CVS client revision number (mapped to integer in DB, without the - "1." prefix), - - Complex CVS-compatible "special" revision number for - non-linear history (see comment below) - - git commit sha1 hash - - branch or tag name - -=cut - -sub getmeta -{ - my $self = shift; - my $filename = shift; - my $revision = shift; - my $tablename_rev = $self->tablename("revision"); - my $tablename_head = $self->tablename("head"); - - if ( ref($revision) eq "HASH" ) - { - $revision = $revision->{tag}; - } - - # Overview of CVS revision numbers: - # - # General CVS numbering scheme: - # - Basic mainline branch numbers: "1.1", "1.2", "1.3", etc. - # - Result of "cvs checkin -r" (possible, but not really - # recommended): "2.1", "2.2", etc - # - Branch tag: "1.2.0.n", where "1.2" is revision it was branched - # from, "0" is a magic placeholder that identifies it as a - # branch tag instead of a version tag, and n is 2 times the - # branch number off of "1.2", starting with "2". - # - Version on a branch: "1.2.n.x", where "1.2" is branch-from, "n" - # is branch number off of "1.2" (like n above), and "x" is - # the version number on the branch. - # - Branches can branch off of branches: "1.3.2.7.4.1" (even number - # of components). - # - Odd "n"s are used by "vendor branches" that result - # from "cvs import". Vendor branches have additional - # strangeness in the sense that the main rcs "head" of the main - # branch will (temporarily until first normal commit) point - # to the version on the vendor branch, rather than the actual - # main branch. (FUTURE: This may provide an opportunity - # to use "strange" revision numbers for fast-forward-merged - # branch tip when CVS client is asking for the main branch.) - # - # git-cvsserver CVS-compatible special numbering schemes: - # - Currently git-cvsserver only tries to be identical to CVS for - # simple "1.x" numbers on the "main" branch (as identified - # by the module name that was originally cvs checkout'ed). - # - The database only stores the "x" part, for historical reasons. - # But most of the rest of the cvsserver preserves - # and thinks using the full revision number. - # - To handle non-linear history, it uses a version of the form - # "2.1.1.2000.b.b.b."..., where the 2.1.1.2000 is to help uniquely - # identify this as a special revision number, and there are - # 20 b's that together encode the sha1 git commit from which - # this version of this file originated. Each b is - # the numerical value of the corresponding byte plus - # 100. - # - "plus 100" avoids "0"s, and also reduces the - # likelihood of a collision in the case that someone someday - # writes an import tool that tries to preserve original - # CVS revision numbers, and the original CVS data had done - # lots of branches off of branches and other strangeness to - # end up with a real version number that just happens to look - # like this special revision number form. Also, if needed - # there are several ways to extend/identify alternative encodings - # within the "2.1.1.2000" part if necessary. - # - Unlike real CVS revisions, you can't really reconstruct what - # relation a revision of this form has to other revisions. - # - FUTURE: TODO: Rework database somehow to make up and remember - # fully-CVS-compatible branches and branch version numbers. - - my $meta; - if ( defined($revision) ) - { - if ( $revision =~ /^1\.(\d+)$/ ) - { - my ($intRev) = $1; - my $db_query; - $db_query = $self->{dbh}->prepare_cached( - "SELECT * FROM $tablename_rev WHERE name=? AND revision=?", - {},1); - $db_query->execute($filename, $intRev); - $meta = $db_query->fetchrow_hashref; - } - elsif ( $revision =~ /^2\.1\.1\.2000(\.[1-3][0-9][0-9]){20}$/ ) - { - my ($commitHash)=($revision=~/^2\.1\.1\.2000(.*)$/); - $commitHash=~s/\.([0-9]+)/sprintf("%02x",$1-100)/eg; - if($commitHash=~/^[0-9a-f]{40}$/) - { - return $self->getMetaFromCommithash($filename,$commitHash); - } - - # error recovery: fall back on head version below - print "E Failed to find $filename version=$revision or commit=$commitHash\n"; - $log->warning("failed get $revision with commithash=$commitHash"); - undef $revision; - } - elsif ( $revision =~ /^[0-9a-f]{40}$/ ) - { - # Try DB first. This is mostly only useful for req_annotate(), - # which only calls this for stuff that should already be in - # the DB. It is fairly likely to be a waste of time - # in most other cases [unless the file happened to be - # modified in $revision specifically], but - # it is probably in the noise compared to how long - # getMetaFromCommithash() will take. - my $db_query; - $db_query = $self->{dbh}->prepare_cached( - "SELECT * FROM $tablename_rev WHERE name=? AND commithash=?", - {},1); - $db_query->execute($filename, $revision); - $meta = $db_query->fetchrow_hashref; - - if(! $meta) - { - my($revCommit)=$self->lookupCommitRef($revision); - if($revCommit=~/^[0-9a-f]{40}$/) - { - return $self->getMetaFromCommithash($filename,$revCommit); - } - - # error recovery: nothing found: - print "E Failed to find $filename version=$revision\n"; - $log->warning("failed get $revision"); - return $meta; - } - } - else - { - my($revCommit)=$self->lookupCommitRef($revision); - if($revCommit=~/^[0-9a-f]{40}$/) - { - return $self->getMetaFromCommithash($filename,$revCommit); - } - - # error recovery: fall back on head version below - print "E Failed to find $filename version=$revision\n"; - $log->warning("failed get $revision"); - undef $revision; # Allow fallback - } - } - - if(!defined($revision)) - { - my $db_query; - $db_query = $self->{dbh}->prepare_cached( - "SELECT * FROM $tablename_head WHERE name=?",{},1); - $db_query->execute($filename); - $meta = $db_query->fetchrow_hashref; - } - - if($meta) - { - $meta->{revision} = "1.$meta->{revision}"; - } - return $meta; -} - -sub getMetaFromCommithash -{ - my $self = shift; - my $filename = shift; - my $revCommit = shift; - - # NOTE: This function doesn't scale well (lots of forks), especially - # if you have many files that have not been modified for many commits - # (each git-rev-parse redoes a lot of work for each file - # that theoretically could be done in parallel by smarter - # graph traversal). - # - # TODO: Possible optimization strategies: - # - Solve the issue of assigning and remembering "real" CVS - # revision numbers for branches, and ensure the - # data structure can do this efficiently. Perhaps something - # similar to "git notes", and carefully structured to take - # advantage same-sha1-is-same-contents, to roll the same - # unmodified subdirectory data onto multiple commits? - # - Write and use a C tool that is like git-blame, but - # operates on multiple files with file granularity, instead - # of one file with line granularity. Cache - # most-recently-modified in $self->{commitRefCache}{$revCommit}. - # Try to be intelligent about how many files we do with - # one fork (perhaps one directory at a time, without recursion, - # and/or include directory as one line item, recurse from here - # instead of in C tool?). - # - Perhaps we could ask the DB for (filename,fileHash), - # and just guess that it is correct (that the file hadn't - # changed between $revCommit and the found commit, then - # changed back, confusing anything trying to interpret - # history). Probably need to add another index to revisions - # DB table for this. - # - NOTE: Trying to store all (commit,file) keys in DB [to - # find "lastModfiedCommit] (instead of - # just files that changed in each commit as we do now) is - # probably not practical from a disk space perspective. - - # Does the file exist in $revCommit? - # TODO: Include file hash in dirmap cache. - my($dirMap)=$self->getRevisionDirMap($revCommit); - my($dir,$file)=($filename=~m%^(?:(.*)/)?([^/]*$)%); - if(!defined($dir)) - { - $dir=""; - } - if( !defined($dirMap->{$dir}) || - !defined($dirMap->{$dir}{$filename}) ) - { - my($fileHash)="deleted"; - - my($retVal)={}; - $retVal->{name}=$filename; - $retVal->{filehash}=$fileHash; - - # not needed and difficult to compute: - $retVal->{revision}="0"; # $revision; - $retVal->{commithash}=$revCommit; - #$retVal->{author}=$commit->{author}; - #$retVal->{modified}=convertToCvsDate($commit->{date}); - #$retVal->{mode}=convertToDbMode($mode); - - return $retVal; - } - - my($fileHash) = ::safe_pipe_capture("git","rev-parse","$revCommit:$filename"); - chomp $fileHash; - if(!($fileHash=~/^[0-9a-f]{40}$/)) - { - die "Invalid fileHash '$fileHash' looking up" - ." '$revCommit:$filename'\n"; - } - - # information about most recent commit to modify $filename: - open(my $gitLogPipe, '-|', 'git', 'rev-list', - '--max-count=1', '--pretty', '--parents', - $revCommit, '--', $filename) - or die "Cannot call git-rev-list: $!"; - my @commits=readCommits($gitLogPipe); - close $gitLogPipe; - if(scalar(@commits)!=1) - { - die "Can't find most recent commit changing $filename\n"; - } - my($commit)=$commits[0]; - if( !defined($commit) || !defined($commit->{hash}) ) - { - return undef; - } - - # does this (commit,file) have a real assigned CVS revision number? - my $tablename_rev = $self->tablename("revision"); - my $db_query; - $db_query = $self->{dbh}->prepare_cached( - "SELECT * FROM $tablename_rev WHERE name=? AND commithash=?", - {},1); - $db_query->execute($filename, $commit->{hash}); - my($meta)=$db_query->fetchrow_hashref; - if($meta) - { - $meta->{revision} = "1.$meta->{revision}"; - return $meta; - } - - # fall back on special revision number - my($revision)=$commit->{hash}; - $revision=~s/(..)/'.' . (hex($1)+100)/eg; - $revision="2.1.1.2000$revision"; - - # meta data about $filename: - open(my $filePipe, '-|', 'git', 'ls-tree', '-z', - $commit->{hash}, '--', $filename) - or die("Cannot call git-ls-tree : $!"); - local $/ = "\0"; - my $line; - $line=<$filePipe>; - if(defined(<$filePipe>)) - { - die "Expected only a single file for git-ls-tree $filename\n"; - } - close $filePipe; - - chomp $line; - unless ( $line=~m/^(\d+)\s+(\w+)\s+([a-zA-Z0-9]+)\t(.*)$/o ) - { - die("Couldn't process git-ls-tree line : $line\n"); - } - my ( $mode, $git_type, $git_hash, $git_filename ) = ( $1, $2, $3, $4 ); - - # save result: - my($retVal)={}; - $retVal->{name}=$filename; - $retVal->{revision}=$revision; - $retVal->{filehash}=$fileHash; - $retVal->{commithash}=$revCommit; - $retVal->{author}=$commit->{author}; - $retVal->{modified}=convertToCvsDate($commit->{date}); - $retVal->{mode}=convertToDbMode($mode); - - return $retVal; -} - -=head2 lookupCommitRef - -Convert tag/branch/abbreviation/etc into a commit sha1 hash. Caches -the result so looking it up again is fast. - -=cut - -sub lookupCommitRef -{ - my $self = shift; - my $ref = shift; - - my $commitHash = $self->{commitRefCache}{$ref}; - if(defined($commitHash)) - { - return $commitHash; - } - - $commitHash = ::safe_pipe_capture("git","rev-parse","--verify","--quiet", - $self->unescapeRefName($ref)); - $commitHash=~s/\s*$//; - if(!($commitHash=~/^[0-9a-f]{40}$/)) - { - $commitHash=undef; - } - - if( defined($commitHash) ) - { - my $type = ::safe_pipe_capture("git","cat-file","-t",$commitHash); - if( ! ($type=~/^commit\s*$/ ) ) - { - $commitHash=undef; - } - } - if(defined($commitHash)) - { - $self->{commitRefCache}{$ref}=$commitHash; - } - return $commitHash; -} - -=head2 clearCommitRefCaches - -Clears cached commit cache (sha1's for various tags/abbeviations/etc), -and related caches. - -=cut - -sub clearCommitRefCaches -{ - my $self = shift; - $self->{commitRefCache} = {}; - $self->{revisionDirMapCache} = undef; - $self->{gethead_cache} = undef; -} - -=head2 commitmessage - -this function takes a commithash and returns the commit message for that commit - -=cut -sub commitmessage -{ - my $self = shift; - my $commithash = shift; - my $tablename = $self->tablename("commitmsgs"); - - die("Need commithash") unless ( defined($commithash) and $commithash =~ /^[a-zA-Z0-9]{40}$/ ); - - my $db_query; - $db_query = $self->{dbh}->prepare_cached("SELECT value FROM $tablename WHERE key=?",{},1); - $db_query->execute($commithash); - - my ( $message ) = $db_query->fetchrow_array; - - if ( defined ( $message ) ) - { - $message .= " " if ( $message =~ /\n$/ ); - return $message; - } - - my @lines = ::safe_pipe_capture("git", "cat-file", "commit", $commithash); - shift @lines while ( $lines[0] =~ /\S/ ); - $message = join("",@lines); - $message .= " " if ( $message =~ /\n$/ ); - return $message; -} - -=head2 gethistorydense - -This function takes a filename (with path) argument and returns an arrayofarrays -containing revision,filehash,commithash ordered by revision descending. - -This version of gethistory skips deleted entries -- so it is useful for annotate. -The 'dense' part is a reference to a '--dense' option available for git-rev-list -and other git tools that depend on it. - -See also getlog(). - -=cut -sub gethistorydense -{ - my $self = shift; - my $filename = shift; - my $tablename = $self->tablename("revision"); - - my $db_query; - $db_query = $self->{dbh}->prepare_cached("SELECT revision, filehash, commithash FROM $tablename WHERE name=? AND filehash!='deleted' ORDER BY revision DESC",{},1); - $db_query->execute($filename); - - my $result = $db_query->fetchall_arrayref; - - my $i; - for($i=0 ; $i<scalar(@$result) ; $i++) - { - $result->[$i][0]="1." . $result->[$i][0]; - } - - return $result; -} - -=head2 escapeRefName - -Apply an escape mechanism to compensate for characters that -git ref names can have that CVS tags can not. - -=cut -sub escapeRefName -{ - my($self,$refName)=@_; - - # CVS officially only allows [-_A-Za-z0-9] in tag names (or in - # many contexts it can also be a CVS revision number). - # - # Git tags commonly use '/' and '.' as well, but also handle - # anything else just in case: - # - # = "_-s-" For '/'. - # = "_-p-" For '.'. - # = "_-u-" For underscore, in case someone wants a literal "_-" in - # a tag name. - # = "_-xx-" Where "xx" is the hexadecimal representation of the - # desired ASCII character byte. (for anything else) - - if(! $refName=~/^[1-9][0-9]*(\.[1-9][0-9]*)*$/) - { - $refName=~s/_-/_-u--/g; - $refName=~s/\./_-p-/g; - $refName=~s%/%_-s-%g; - $refName=~s/[^-_a-zA-Z0-9]/sprintf("_-%02x-",$1)/eg; - } -} - -=head2 unescapeRefName - -Undo an escape mechanism to compensate for characters that -git ref names can have that CVS tags can not. - -=cut -sub unescapeRefName -{ - my($self,$refName)=@_; - - # see escapeRefName() for description of escape mechanism. - - $refName=~s/_-([spu]|[0-9a-f][0-9a-f])-/unescapeRefNameChar($1)/eg; - - # allowed tag names - # TODO: Perhaps use git check-ref-format, with an in-process cache of - # validated names? - if( !( $refName=~m%^[^-][-a-zA-Z0-9_/.]*$% ) || - ( $refName=~m%[/.]$% ) || - ( $refName=~/\.lock$/ ) || - ( $refName=~m%\.\.|/\.|[[\\:?*~]|\@\{% ) ) # matching } - { - # Error: - $log->warn("illegal refName: $refName"); - $refName=undef; - } - return $refName; -} - -sub unescapeRefNameChar -{ - my($char)=@_; - - if($char eq "s") - { - $char="/"; - } - elsif($char eq "p") - { - $char="."; - } - elsif($char eq "u") - { - $char="_"; - } - elsif($char=~/^[0-9a-f][0-9a-f]$/) - { - $char=chr(hex($char)); - } - else - { - # Error case: Maybe it has come straight from user, and - # wasn't supposed to be escaped? Restore it the way we got it: - $char="_-$char-"; - } - - return $char; -} - -=head2 in_array() - -from Array::PAT - mimics the in_array() function -found in PHP. Yuck but works for small arrays. - -=cut -sub in_array -{ - my ($check, @array) = @_; - my $retval = 0; - foreach my $test (@array){ - if($check eq $test){ - $retval = 1; - } - } - return $retval; -} - -=head2 mangle_dirname - -create a string from a directory name that is suitable to use as -part of a filename, mainly by converting all chars except \w.- to _ - -=cut -sub mangle_dirname { - my $dirname = shift; - return unless defined $dirname; - - $dirname =~ s/[^\w.-]/_/g; - - return $dirname; -} - -=head2 mangle_tablename - -create a string from a that is suitable to use as part of an SQL table -name, mainly by converting all chars except \w to _ - -=cut -sub mangle_tablename { - my $tablename = shift; - return unless defined $tablename; - - $tablename =~ s/[^\w_]/_/g; - - return $tablename; -} - -1; |