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git/t/t4208-log-magic-pathspec.sh
Brandon Williams eef3df5a93 pathspec: only match across submodule boundaries when requested
Commit 74ed43711f (grep: enable recurse-submodules to work on <tree>
objects, 2016-12-16) taught 'tree_entry_interesting()' to be able to
match across submodule boundaries in the presence of wildcards.  This is
done by performing literal matching up to the first wildcard and then
punting to the submodule itself to perform more accurate pattern
matching.  Instead of introducing a new flag to request this behavior,
commit 74ed43711f overloaded the already existing 'recursive' flag in
'struct pathspec' to request this behavior.

This leads to a bug where whenever any other caller has the 'recursive'
flag set as well as a pathspec with wildcards that all submodules will
be indicated as matches.  One simple example of this is:

	git init repo
	cd repo

	git init submodule
	git -C submodule commit -m initial --allow-empty

	touch "[bracket]"
	git add "[bracket]"
	git commit -m bracket
	git add submodule
	git commit -m submodule

	git rev-list HEAD -- "[bracket]"

Fix this by introducing the new flag 'recurse_submodules' in 'struct
pathspec' and using this flag to determine if matches should be allowed
to cross submodule boundaries.

This fixes https://github.com/git-for-windows/git/issues/1371.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-05 09:23:15 -08:00

115 lines
2.7 KiB
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Executable file

#!/bin/sh
test_description='magic pathspec tests using git-log'
. ./test-lib.sh
test_expect_success 'setup' '
test_commit initial &&
test_tick &&
git commit --allow-empty -m empty &&
mkdir sub
'
test_expect_success '"git log :/" should not be ambiguous' '
git log :/
'
test_expect_success '"git log :/a" should be ambiguous (applied both rev and worktree)' '
: >a &&
test_must_fail git log :/a 2>error &&
test_i18ngrep ambiguous error
'
test_expect_success '"git log :/a -- " should not be ambiguous' '
git log :/a --
'
test_expect_success '"git log -- :/a" should not be ambiguous' '
git log -- :/a
'
# This differs from the ":/a" check above in that :/in looks like a pathspec,
# but doesn't match an actual file.
test_expect_success '"git log :/in" should not be ambiguous' '
git log :/in
'
test_expect_success '"git log :" should be ambiguous' '
test_must_fail git log : 2>error &&
test_i18ngrep ambiguous error
'
test_expect_success 'git log -- :' '
git log -- :
'
test_expect_success 'git log HEAD -- :/' '
cat >expected <<-EOF &&
24b24cf initial
EOF
(cd sub && git log --oneline HEAD -- :/ >../actual) &&
test_cmp expected actual
'
test_expect_success '"git log :^sub" is not ambiguous' '
git log :^sub
'
test_expect_success '"git log :^does-not-exist" does not match anything' '
test_must_fail git log :^does-not-exist
'
test_expect_success '"git log :!" behaves the same as :^' '
git log :!sub &&
test_must_fail git log :!does-not-exist
'
test_expect_success '"git log :(exclude)sub" is not ambiguous' '
git log ":(exclude)sub"
'
test_expect_success '"git log :(exclude)sub --" must resolve as an object' '
test_must_fail git log ":(exclude)sub" --
'
test_expect_success '"git log :(unknown-magic) complains of bogus magic' '
test_must_fail git log ":(unknown-magic)" 2>error &&
test_i18ngrep pathspec.magic error
'
test_expect_success 'command line pathspec parsing for "git log"' '
git reset --hard &&
>a &&
git add a &&
git commit -m "add an empty a" --allow-empty &&
echo 1 >a &&
git commit -a -m "update a to 1" &&
git checkout HEAD^ &&
echo 2 >a &&
git commit -a -m "update a to 2" &&
test_must_fail git merge master &&
git add a &&
git log --merge -- a
'
test_expect_success 'tree_entry_interesting does not match past submodule boundaries' '
test_when_finished "rm -rf repo submodule" &&
git init submodule &&
test_commit -C submodule initial &&
git init repo &&
>"repo/[bracket]" &&
git -C repo add "[bracket]" &&
test_tick &&
git -C repo commit -m bracket &&
git -C repo rev-list HEAD -- "[bracket]" >expect &&
git -C repo submodule add ../submodule &&
test_tick &&
git -C repo commit -m submodule &&
git -C repo rev-list HEAD -- "[bracket]" >actual &&
test_cmp expect actual
'
test_done