git/t/t5001-archive-attr.sh
René Scharfe 92b1dd1b9e archive: improve support for running in subdirectory
When git archive is started in a subdirectory, it archives its
corresponding tree and its child objects, only.  That is intended.  It
does that by effectively cd'ing into that tree and setting "prefix" to
the empty string.

This has unfortunate consequences, though: Attributes are anchored at
the root of the repository and git archive still applies them to
subtrees, causing mismatches.  And when checking pathspecs it cannot
tell the difference between one that doesn't match anthing or one that
matches some actual blob outside of the subdirectory, leading to a
confusing error message.

Fix that by keeping the "prefix" value and passing it to pathspec and
attribute functions, and shortening it using relative_path() for paths
written to the archive and (if --verbose is given) to stdout.

Still reject attempts to archive files outside the current directory,
but print a more specific error in that case.  Recognizing it requires a
full traversal of the subtree for each pathspec, however.  Allowing them
would be easier, but archive entry paths starting with "../" can be
problematic to extract -- e.g. bsdtar skips them by default.

Reported-by: Cristian Le <cristian.le@mpsd.mpg.de>
Reported-by: Matthias Görgens <matthias.goergens@gmail.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-03-24 15:51:25 -07:00

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#!/bin/sh
test_description='git archive attribute tests'
TEST_CREATE_REPO_NO_TEMPLATE=1
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
SUBSTFORMAT='%H (%h)%n'
test_expect_exists() {
test_expect_${2:-success} " $1 exists" "test -e $1"
}
test_expect_missing() {
test_expect_${2:-success} " $1 does not exist" "test ! -e $1"
}
extract_tar_to_dir () {
(mkdir "$1" && cd "$1" && "$TAR" xf -) <"$1.tar"
}
test_expect_success 'setup' '
echo ignored >ignored &&
mkdir .git/info &&
echo ignored export-ignore >>.git/info/attributes &&
git add ignored &&
echo ignored by tree >ignored-by-tree &&
echo ignored-by-tree export-ignore >.gitattributes &&
mkdir ignored-by-tree.d &&
>ignored-by-tree.d/file &&
echo ignored-by-tree.d export-ignore >>.gitattributes &&
git add ignored-by-tree ignored-by-tree.d .gitattributes &&
mkdir subdir &&
>subdir/included &&
>subdir/ignored-by-subtree &&
>subdir/ignored-by-tree &&
echo ignored-by-subtree export-ignore >subdir/.gitattributes &&
git add subdir &&
echo ignored by worktree >ignored-by-worktree &&
echo ignored-by-worktree export-ignore >.gitattributes &&
git add ignored-by-worktree &&
mkdir excluded-by-pathspec.d &&
>excluded-by-pathspec.d/file &&
git add excluded-by-pathspec.d &&
printf "A\$Format:%s\$O" "$SUBSTFORMAT" >nosubstfile &&
printf "A\$Format:%s\$O" "$SUBSTFORMAT" >substfile1 &&
printf "A not substituted O" >substfile2 &&
echo "substfile?" export-subst >>.git/info/attributes &&
git add nosubstfile substfile1 substfile2 &&
git commit -m. &&
git clone --template= --bare . bare &&
mkdir bare/info &&
cp .git/info/attributes bare/info/attributes
'
test_expect_success 'git archive' '
git archive HEAD >archive.tar &&
(mkdir archive && cd archive && "$TAR" xf -) <archive.tar
'
test_expect_missing archive/ignored
test_expect_missing archive/ignored-by-tree
test_expect_missing archive/ignored-by-tree.d
test_expect_missing archive/ignored-by-tree.d/file
test_expect_exists archive/ignored-by-worktree
test_expect_exists archive/excluded-by-pathspec.d
test_expect_exists archive/excluded-by-pathspec.d/file
test_expect_success 'git archive with pathspec' '
git archive HEAD ":!excluded-by-pathspec.d" >archive-pathspec.tar &&
extract_tar_to_dir archive-pathspec
'
test_expect_missing archive-pathspec/ignored
test_expect_missing archive-pathspec/ignored-by-tree
test_expect_missing archive-pathspec/ignored-by-tree.d
test_expect_missing archive-pathspec/ignored-by-tree.d/file
test_expect_exists archive-pathspec/ignored-by-worktree
test_expect_missing archive-pathspec/excluded-by-pathspec.d
test_expect_missing archive-pathspec/excluded-by-pathspec.d/file
test_expect_success 'git archive with wildcard pathspec' '
git archive HEAD ":!excluded-by-p*" >archive-pathspec-wildcard.tar &&
extract_tar_to_dir archive-pathspec-wildcard
'
test_expect_missing archive-pathspec-wildcard/ignored
test_expect_missing archive-pathspec-wildcard/ignored-by-tree
test_expect_missing archive-pathspec-wildcard/ignored-by-tree.d
test_expect_missing archive-pathspec-wildcard/ignored-by-tree.d/file
test_expect_exists archive-pathspec-wildcard/ignored-by-worktree
test_expect_missing archive-pathspec-wildcard/excluded-by-pathspec.d
test_expect_missing archive-pathspec-wildcard/excluded-by-pathspec.d/file
test_expect_success 'git -C subdir archive' '
git -C subdir archive HEAD >archive-subdir.tar &&
extract_tar_to_dir archive-subdir
'
test_expect_exists archive-subdir/included
test_expect_missing archive-subdir/ignored-by-subtree
test_expect_missing archive-subdir/ignored-by-tree
test_expect_success 'git archive with worktree attributes' '
git archive --worktree-attributes HEAD >worktree.tar &&
(mkdir worktree && cd worktree && "$TAR" xf -) <worktree.tar
'
test_expect_missing worktree/ignored
test_expect_exists worktree/ignored-by-tree
test_expect_missing worktree/ignored-by-worktree
test_expect_success 'git archive --worktree-attributes option' '
git archive --worktree-attributes --worktree-attributes HEAD >worktree.tar &&
(mkdir worktree2 && cd worktree2 && "$TAR" xf -) <worktree.tar
'
test_expect_missing worktree2/ignored
test_expect_exists worktree2/ignored-by-tree
test_expect_missing worktree2/ignored-by-worktree
test_expect_success 'git archive vs. bare' '
(cd bare && git archive HEAD) >bare-archive.tar &&
test_cmp_bin archive.tar bare-archive.tar
'
test_expect_success 'git archive with worktree attributes, bare' '
(cd bare && git archive --worktree-attributes HEAD) >bare-worktree.tar &&
(mkdir bare-worktree && cd bare-worktree && "$TAR" xf -) <bare-worktree.tar
'
test_expect_missing bare-worktree/ignored
test_expect_exists bare-worktree/ignored-by-tree
test_expect_exists bare-worktree/ignored-by-worktree
test_expect_success 'export-subst' '
git log "--pretty=format:A${SUBSTFORMAT}O" HEAD >substfile1.expected &&
test_cmp nosubstfile archive/nosubstfile &&
test_cmp substfile1.expected archive/substfile1 &&
test_cmp substfile2 archive/substfile2
'
test_expect_success 'export-subst expands %(describe) once' '
echo "\$Format:%(describe)\$" >substfile3 &&
echo "\$Format:%(describe)\$" >>substfile3 &&
echo "\$Format:%(describe)${LF}%(describe)\$" >substfile4 &&
git add substfile[34] &&
git commit -m export-subst-describe &&
git tag -m export-subst-describe export-subst-describe &&
git archive HEAD >archive-describe.tar &&
extract_tar_to_dir archive-describe &&
desc=$(git describe) &&
grep -F "$desc" archive-describe/substfile[34] >substituted &&
test_line_count = 1 substituted
'
test_done