Squashed 'third_party/git/' content from commit cb71568594

git-subtree-dir: third_party/git
git-subtree-split: cb715685942260375e1eb8153b0768a376e4ece7

1 files changed, 423 insertions, 0 deletions

diff --git a/t/t5000-tar-tree.sh b/t/t5000-tar-tree.sh
new file mode 100755
index 000000000000..37655a237cb7
--- /dev/null
+++ b/t/t5000-tar-tree.sh
@@ -0,0 +1,423 @@
+#!/bin/sh
+#
+# Copyright (C) 2005 Rene Scharfe
+#
+
+test_description='git archive and git get-tar-commit-id test
+
+This test covers the topics of file contents, commit date handling and
+commit id embedding:
+
+  The contents of the repository is compared to the extracted tar
+  archive.  The repository contains simple text files, symlinks and a
+  binary file (/bin/sh).  Only paths shorter than 99 characters are
+  used.
+
+  git archive applies the commit date to every file in the archive it
+  creates.  The test sets the commit date to a specific value and checks
+  if the tar archive contains that value.
+
+  When giving git archive a commit id (in contrast to a tree id) it
+  embeds this commit id into the tar archive as a comment.  The test
+  checks the ability of git get-tar-commit-id to figure it out from the
+  tar file.
+
+'
+
+. ./test-lib.sh
+
+SUBSTFORMAT=%H%n
+
+test_lazy_prereq TAR_NEEDS_PAX_FALLBACK '
+	(
+		mkdir pax &&
+		cd pax &&
+		"$TAR" xf "$TEST_DIRECTORY"/t5000/pax.tar &&
+		test -f PaxHeaders.1791/file
+	)
+'
+
+test_lazy_prereq GZIP 'gzip --version'
+
+get_pax_header() {
+	file=$1
+	header=$2=
+
+	while read len rest
+	do
+		if test "$len" = $(echo "$len $rest" | wc -c)
+		then
+			case "$rest" in
+			$header*)
+				echo "${rest#$header}"
+				;;
+			esac
+		fi
+	done <"$file"
+}
+
+check_tar() {
+	tarfile=$1.tar
+	listfile=$1.lst
+	dir=$1
+	dir_with_prefix=$dir/$2
+
+	test_expect_success ' extract tar archive' '
+		(mkdir $dir && cd $dir && "$TAR" xf -) <$tarfile
+	'
+
+	test_expect_success TAR_NEEDS_PAX_FALLBACK ' interpret pax headers' '
+		(
+			cd $dir &&
+			for header in *.paxheader
+			do
+				data=${header%.paxheader}.data &&
+				if test -h $data || test -e $data
+				then
+					path=$(get_pax_header $header path) &&
+					if test -n "$path"
+					then
+						mv "$data" "$path"
+					fi
+				fi
+			done
+		)
+	'
+
+	test_expect_success ' validate filenames' '
+		(cd ${dir_with_prefix}a && find .) | sort >$listfile &&
+		test_cmp a.lst $listfile
+	'
+
+	test_expect_success ' validate file contents' '
+		diff -r a ${dir_with_prefix}a
+	'
+}
+
+test_expect_success 'setup' '
+	test_oid_cache <<-EOF
+	obj sha1:19f9c8273ec45a8938e6999cb59b3ff66739902a
+	obj sha256:3c666f798798601571f5cec0adb57ce4aba8546875e7693177e0535f34d2c49b
+	EOF
+'
+
+test_expect_success \
+    'populate workdir' \
+    'mkdir a &&
+     echo simple textfile >a/a &&
+     ten=0123456789 && hundred=$ten$ten$ten$ten$ten$ten$ten$ten$ten$ten &&
+     echo long filename >a/four$hundred &&
+     mkdir a/bin &&
+     test-tool genrandom "frotz" 500000 >a/bin/sh &&
+     printf "A\$Format:%s\$O" "$SUBSTFORMAT" >a/substfile1 &&
+     printf "A not substituted O" >a/substfile2 &&
+     if test_have_prereq SYMLINKS; then
+	ln -s a a/l1
+     else
+	printf %s a > a/l1
+     fi &&
+     (p=long_path_to_a_file && cd a &&
+      for depth in 1 2 3 4 5; do mkdir $p && cd $p; done &&
+      echo text >file_with_long_path) &&
+     (cd a && find .) | sort >a.lst'
+
+test_expect_success \
+    'add ignored file' \
+    'echo ignore me >a/ignored &&
+     echo ignored export-ignore >.git/info/attributes'
+
+test_expect_success 'add files to repository' '
+	git add a &&
+	GIT_COMMITTER_DATE="2005-05-27 22:00" git commit -m initial
+'
+
+test_expect_success 'setup export-subst' '
+	echo "substfile?" export-subst >>.git/info/attributes &&
+	git log --max-count=1 "--pretty=format:A${SUBSTFORMAT}O" HEAD \
+		>a/substfile1
+'
+
+test_expect_success \
+    'create bare clone' \
+    'git clone --bare . bare.git &&
+     cp .git/info/attributes bare.git/info/attributes'
+
+test_expect_success \
+    'remove ignored file' \
+    'rm a/ignored'
+
+test_expect_success \
+    'git archive' \
+    'git archive HEAD >b.tar'
+
+check_tar b
+
+test_expect_success 'git archive --prefix=prefix/' '
+	git archive --prefix=prefix/ HEAD >with_prefix.tar
+'
+
+check_tar with_prefix prefix/
+
+test_expect_success 'git-archive --prefix=olde-' '
+	git archive --prefix=olde- HEAD >with_olde-prefix.tar
+'
+
+check_tar with_olde-prefix olde-
+
+test_expect_success 'git archive on large files' '
+    test_config core.bigfilethreshold 1 &&
+    git archive HEAD >b3.tar &&
+    test_cmp_bin b.tar b3.tar
+'
+
+test_expect_success \
+    'git archive in a bare repo' \
+    '(cd bare.git && git archive HEAD) >b3.tar'
+
+test_expect_success \
+    'git archive vs. the same in a bare repo' \
+    'test_cmp_bin b.tar b3.tar'
+
+test_expect_success 'git archive with --output' \
+    'git archive --output=b4.tar HEAD &&
+    test_cmp_bin b.tar b4.tar'
+
+test_expect_success 'git archive --remote' \
+    'git archive --remote=. HEAD >b5.tar &&
+    test_cmp_bin b.tar b5.tar'
+
+test_expect_success 'git archive --remote with configured remote' '
+	git config remote.foo.url . &&
+	(
+		cd a &&
+		git archive --remote=foo --output=../b5-nick.tar HEAD
+	) &&
+	test_cmp_bin b.tar b5-nick.tar
+'
+
+test_expect_success \
+    'validate file modification time' \
+    'mkdir extract &&
+     "$TAR" xf b.tar -C extract a/a &&
+     test-tool chmtime --get extract/a/a >b.mtime &&
+     echo "1117231200" >expected.mtime &&
+     test_cmp expected.mtime b.mtime'
+
+test_expect_success \
+    'git get-tar-commit-id' \
+    'git get-tar-commit-id <b.tar >b.commitid &&
+     test_cmp .git/$(git symbolic-ref HEAD) b.commitid'
+
+test_expect_success 'git archive with --output, override inferred format' '
+	git archive --format=tar --output=d4.zip HEAD &&
+	test_cmp_bin b.tar d4.zip
+'
+
+test_expect_success GZIP 'git archive with --output and --remote creates .tgz' '
+	git archive --output=d5.tgz --remote=. HEAD &&
+	gzip -d -c <d5.tgz >d5.tar &&
+	test_cmp_bin b.tar d5.tar
+'
+
+test_expect_success 'git archive --list outside of a git repo' '
+	nongit git archive --list
+'
+
+test_expect_success 'git archive --remote outside of a git repo' '
+	git archive HEAD >expect.tar &&
+	nongit git archive --remote="$PWD" HEAD >actual.tar &&
+	test_cmp_bin expect.tar actual.tar
+'
+
+test_expect_success 'clients cannot access unreachable commits' '
+	test_commit unreachable &&
+	sha1=$(git rev-parse HEAD) &&
+	git reset --hard HEAD^ &&
+	git archive $sha1 >remote.tar &&
+	test_must_fail git archive --remote=. $sha1 >remote.tar
+'
+
+test_expect_success 'upload-archive can allow unreachable commits' '
+	test_commit unreachable1 &&
+	sha1=$(git rev-parse HEAD) &&
+	git reset --hard HEAD^ &&
+	git archive $sha1 >remote.tar &&
+	test_config uploadarchive.allowUnreachable true &&
+	git archive --remote=. $sha1 >remote.tar
+'
+
+test_expect_success 'setup tar filters' '
+	git config tar.tar.foo.command "tr ab ba" &&
+	git config tar.bar.command "tr ab ba" &&
+	git config tar.bar.remote true &&
+	git config tar.invalid baz
+'
+
+test_expect_success 'archive --list mentions user filter' '
+	git archive --list >output &&
+	grep "^tar\.foo\$" output &&
+	grep "^bar\$" output
+'
+
+test_expect_success 'archive --list shows only enabled remote filters' '
+	git archive --list --remote=. >output &&
+	! grep "^tar\.foo\$" output &&
+	grep "^bar\$" output
+'
+
+test_expect_success 'invoke tar filter by format' '
+	git archive --format=tar.foo HEAD >config.tar.foo &&
+	tr ab ba <config.tar.foo >config.tar &&
+	test_cmp_bin b.tar config.tar &&
+	git archive --format=bar HEAD >config.bar &&
+	tr ab ba <config.bar >config.tar &&
+	test_cmp_bin b.tar config.tar
+'
+
+test_expect_success 'invoke tar filter by extension' '
+	git archive -o config-implicit.tar.foo HEAD &&
+	test_cmp_bin config.tar.foo config-implicit.tar.foo &&
+	git archive -o config-implicit.bar HEAD &&
+	test_cmp_bin config.tar.foo config-implicit.bar
+'
+
+test_expect_success 'default output format remains tar' '
+	git archive -o config-implicit.baz HEAD &&
+	test_cmp_bin b.tar config-implicit.baz
+'
+
+test_expect_success 'extension matching requires dot' '
+	git archive -o config-implicittar.foo HEAD &&
+	test_cmp_bin b.tar config-implicittar.foo
+'
+
+test_expect_success 'only enabled filters are available remotely' '
+	test_must_fail git archive --remote=. --format=tar.foo HEAD \
+		>remote.tar.foo &&
+	git archive --remote=. --format=bar >remote.bar HEAD &&
+	test_cmp_bin remote.bar config.bar
+'
+
+test_expect_success GZIP 'git archive --format=tgz' '
+	git archive --format=tgz HEAD >j.tgz
+'
+
+test_expect_success GZIP 'git archive --format=tar.gz' '
+	git archive --format=tar.gz HEAD >j1.tar.gz &&
+	test_cmp_bin j.tgz j1.tar.gz
+'
+
+test_expect_success GZIP 'infer tgz from .tgz filename' '
+	git archive --output=j2.tgz HEAD &&
+	test_cmp_bin j.tgz j2.tgz
+'
+
+test_expect_success GZIP 'infer tgz from .tar.gz filename' '
+	git archive --output=j3.tar.gz HEAD &&
+	test_cmp_bin j.tgz j3.tar.gz
+'
+
+test_expect_success GZIP 'extract tgz file' '
+	gzip -d -c <j.tgz >j.tar &&
+	test_cmp_bin b.tar j.tar
+'
+
+test_expect_success GZIP 'remote tar.gz is allowed by default' '
+	git archive --remote=. --format=tar.gz HEAD >remote.tar.gz &&
+	test_cmp_bin j.tgz remote.tar.gz
+'
+
+test_expect_success GZIP 'remote tar.gz can be disabled' '
+	git config tar.tar.gz.remote false &&
+	test_must_fail git archive --remote=. --format=tar.gz HEAD \
+		>remote.tar.gz
+'
+
+test_expect_success 'archive and :(glob)' '
+	git archive -v HEAD -- ":(glob)**/sh" >/dev/null 2>actual &&
+	cat >expect <<EOF &&
+a/
+a/bin/
+a/bin/sh
+EOF
+	test_cmp expect actual
+'
+
+test_expect_success 'catch non-matching pathspec' '
+	test_must_fail git archive -v HEAD -- "*.abc" >/dev/null
+'
+
+# Pull the size and date of each entry in a tarfile using the system tar.
+#
+# We'll pull out only the year from the date; that avoids any question of
+# timezones impacting the result (as long as we keep our test times away from a
+# year boundary; our reference times are all in August).
+#
+# The output of tar_info is expected to be "<size> <year>", both in decimal. It
+# ignores the return value of tar. We have to do this, because some of our test
+# input is only partial (the real data is 64GB in some cases).
+tar_info () {
+	"$TAR" tvf "$1" |
+	awk '{
+		split($4, date, "-")
+		print $3 " " date[1]
+	}'
+}
+
+# See if our system tar can handle a tar file with huge sizes and dates far in
+# the future, and that we can actually parse its output.
+#
+# The reference file was generated by GNU tar, and the magic time and size are
+# both octal 01000000000001, which overflows normal ustar fields.
+test_lazy_prereq TAR_HUGE '
+	echo "68719476737 4147" >expect &&
+	tar_info "$TEST_DIRECTORY"/t5000/huge-and-future.tar >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success LONG_IS_64BIT 'set up repository with huge blob' '
+	obj=$(test_oid obj) &&
+	path=$(test_oid_to_path $obj) &&
+	mkdir -p .git/objects/$(dirname $path) &&
+	cp "$TEST_DIRECTORY"/t5000/huge-object .git/objects/$path &&
+	rm -f .git/index &&
+	git update-index --add --cacheinfo 100644,$obj,huge &&
+	git commit -m huge
+'
+
+# We expect git to die with SIGPIPE here (otherwise we
+# would generate the whole 64GB).
+test_expect_success LONG_IS_64BIT 'generate tar with huge size' '
+	{
+		git archive HEAD
+		echo $? >exit-code
+	} | test_copy_bytes 4096 >huge.tar &&
+	echo 141 >expect &&
+	test_cmp expect exit-code
+'
+
+test_expect_success TAR_HUGE,LONG_IS_64BIT 'system tar can read our huge size' '
+	echo 68719476737 >expect &&
+	tar_info huge.tar | cut -d" " -f1 >actual &&
+	test_cmp expect actual
+'
+
+test_expect_success TIME_IS_64BIT 'set up repository with far-future commit' '
+	rm -f .git/index &&
+	echo content >file &&
+	git add file &&
+	GIT_COMMITTER_DATE="@68719476737 +0000" \
+		git commit -m "tempori parendum"
+'
+
+test_expect_success TIME_IS_64BIT 'generate tar with future mtime' '
+	git archive HEAD >future.tar
+'
+
+test_expect_success TAR_HUGE,TIME_IS_64BIT,TIME_T_IS_64BIT 'system tar can read our future mtime' '
+	echo 4147 >expect &&
+	tar_info future.tar | cut -d" " -f2 >actual &&
+	test_cmp expect actual
+'
+
+test_done