diff options
Diffstat (limited to 'src/nix/nix.cc')
| -rw-r--r-- | src/nix/nix.cc | 304 |
1 files changed, 0 insertions, 304 deletions
diff --git a/src/nix/nix.cc b/src/nix/nix.cc deleted file mode 100644 index d1766de39b7e..000000000000 --- a/src/nix/nix.cc +++ /dev/null @@ -1,304 +0,0 @@ -#include <iostream> -#include <sstream> - -#include "globals.hh" -#include "normalise.hh" -#include "archive.hh" -#include "shared.hh" -#include "dotgraph.hh" - - -typedef void (* Operation) (Strings opFlags, Strings opArgs); - - -static void printHelp() -{ - cout << -#include "nix-help.txt.hh" - ; - exit(0); -} - - - -static Path checkPath(const Path & arg) -{ - return arg; /* !!! check that arg is in the store */ -} - - -/* Realise paths from the given store expressions. */ -static void opRealise(Strings opFlags, Strings opArgs) -{ - if (!opFlags.empty()) throw UsageError("unknown flag"); - - for (Strings::iterator i = opArgs.begin(); - i != opArgs.end(); i++) - { - Path nfPath = normaliseStoreExpr(checkPath(*i)); - realiseClosure(nfPath); - cout << format("%1%\n") % (string) nfPath; - } -} - - -/* Delete a path in the Nix store directory. */ -static void opDelete(Strings opFlags, Strings opArgs) -{ - if (!opFlags.empty()) throw UsageError("unknown flag"); - - for (Strings::iterator it = opArgs.begin(); - it != opArgs.end(); it++) - deleteFromStore(checkPath(*it)); -} - - -/* Add paths to the Nix values directory and print the hashes of those - paths. */ -static void opAdd(Strings opFlags, Strings opArgs) -{ - if (!opFlags.empty()) throw UsageError("unknown flag"); - - for (Strings::iterator i = opArgs.begin(); i != opArgs.end(); i++) - cout << format("%1%\n") % addToStore(*i); -} - - -Path maybeNormalise(const Path & ne, bool normalise) -{ - return normalise ? normaliseStoreExpr(ne) : ne; -} - - -/* Perform various sorts of queries. */ -static void opQuery(Strings opFlags, Strings opArgs) -{ - enum { qList, qRequisites, qPredecessors, qGraph - } query = qList; - bool normalise = false; - bool includeExprs = true; - bool includeSuccessors = false; - - for (Strings::iterator i = opFlags.begin(); - i != opFlags.end(); i++) - if (*i == "--list" || *i == "-l") query = qList; - else if (*i == "--requisites" || *i == "-R") query = qRequisites; - else if (*i == "--predecessors") query = qPredecessors; - else if (*i == "--graph") query = qGraph; - else if (*i == "--normalise" || *i == "-n") normalise = true; - else if (*i == "--exclude-exprs") includeExprs = false; - else if (*i == "--include-successors") includeSuccessors = true; - else throw UsageError(format("unknown flag `%1%'") % *i); - - switch (query) { - - case qList: { - for (Strings::iterator i = opArgs.begin(); - i != opArgs.end(); i++) - { - StringSet paths = storeExprRoots( - maybeNormalise(checkPath(*i), normalise)); - for (StringSet::iterator j = paths.begin(); - j != paths.end(); j++) - cout << format("%s\n") % *j; - } - break; - } - - case qRequisites: { - StringSet paths; - for (Strings::iterator i = opArgs.begin(); - i != opArgs.end(); i++) - { - StringSet paths2 = storeExprRequisites( - maybeNormalise(checkPath(*i), normalise), - includeExprs, includeSuccessors); - paths.insert(paths2.begin(), paths2.end()); - } - for (StringSet::iterator i = paths.begin(); - i != paths.end(); i++) - cout << format("%s\n") % *i; - break; - } - - case qPredecessors: { - for (Strings::iterator i = opArgs.begin(); - i != opArgs.end(); i++) - { - Paths preds = queryPredecessors(checkPath(*i)); - for (Paths::iterator j = preds.begin(); - j != preds.end(); j++) - cout << format("%s\n") % *j; - } - break; - } - - case qGraph: { - PathSet roots; - for (Strings::iterator i = opArgs.begin(); - i != opArgs.end(); i++) - roots.insert(maybeNormalise(checkPath(*i), normalise)); - printDotGraph(roots); - break; - } - - default: - abort(); - } -} - - -static void opSuccessor(Strings opFlags, Strings opArgs) -{ - if (!opFlags.empty()) throw UsageError("unknown flag"); - if (opArgs.size() % 2) throw UsageError("expecting even number of arguments"); - - Transaction txn; - createStoreTransaction(txn); - for (Strings::iterator i = opArgs.begin(); - i != opArgs.end(); ) - { - Path path1 = checkPath(*i++); - Path path2 = checkPath(*i++); - registerSuccessor(txn, path1, path2); - } - txn.commit(); -} - - -static void opSubstitute(Strings opFlags, Strings opArgs) -{ - if (!opFlags.empty()) throw UsageError("unknown flag"); - if (opArgs.size() % 2) throw UsageError("expecting even number of arguments"); - - for (Strings::iterator i = opArgs.begin(); - i != opArgs.end(); ) - { - Path src = checkPath(*i++); - Path sub = checkPath(*i++); - registerSubstitute(src, sub); - } -} - - -/* A sink that writes dump output to stdout. */ -struct StdoutSink : DumpSink -{ - virtual void operator () - (const unsigned char * data, unsigned int len) - { - writeFull(STDOUT_FILENO, data, len); - } -}; - - -/* Dump a path as a Nix archive. The archive is written to standard - output. */ -static void opDump(Strings opFlags, Strings opArgs) -{ - if (!opFlags.empty()) throw UsageError("unknown flag"); - if (opArgs.size() != 1) throw UsageError("only one argument allowed"); - - StdoutSink sink; - string path = *opArgs.begin(); - dumpPath(path, sink); -} - - -/* A source that read restore intput to stdin. */ -struct StdinSource : RestoreSource -{ - virtual void operator () (unsigned char * data, unsigned int len) - { - readFull(STDIN_FILENO, data, len); - } -}; - - -/* Restore a value from a Nix archive. The archive is written to - standard input. */ -static void opRestore(Strings opFlags, Strings opArgs) -{ - if (!opFlags.empty()) throw UsageError("unknown flag"); - if (opArgs.size() != 1) throw UsageError("only one argument allowed"); - - StdinSource source; - restorePath(*opArgs.begin(), source); -} - - -/* Initialise the Nix databases. */ -static void opInit(Strings opFlags, Strings opArgs) -{ - if (!opFlags.empty()) throw UsageError("unknown flag"); - if (!opArgs.empty()) - throw UsageError("--init does not have arguments"); - initDB(); -} - - -/* Verify the consistency of the Nix environment. */ -static void opVerify(Strings opFlags, Strings opArgs) -{ - verifyStore(); -} - - -/* Scan the arguments; find the operation, set global flags, put all - other flags in a list, and put all other arguments in another - list. */ -void run(Strings args) -{ - Strings opFlags, opArgs; - Operation op = 0; - - for (Strings::iterator it = args.begin(); it != args.end(); ) - { - string arg = *it++; - - Operation oldOp = op; - - if (arg == "--realise" || arg == "-r") - op = opRealise; - else if (arg == "--delete" || arg == "-d") - op = opDelete; - else if (arg == "--add" || arg == "-A") - op = opAdd; - else if (arg == "--query" || arg == "-q") - op = opQuery; - else if (arg == "--successor") - op = opSuccessor; - else if (arg == "--substitute") - op = opSubstitute; - else if (arg == "--dump") - op = opDump; - else if (arg == "--restore") - op = opRestore; - else if (arg == "--init") - op = opInit; - else if (arg == "--verify") - op = opVerify; - else if (arg == "--verbose" || arg == "-v") - verbosity = (Verbosity) ((int) verbosity + 1); - else if (arg == "--keep-failed" || arg == "-K") - keepFailed = true; - else if (arg == "--help") - printHelp(); - else if (arg[0] == '-') - opFlags.push_back(arg); - else - opArgs.push_back(arg); - - if (oldOp && oldOp != op) - throw UsageError("only one operation may be specified"); - } - - if (!op) throw UsageError("no operation specified"); - - openDB(); - - op(opFlags, opArgs); -} - - -string programId = "nix"; |