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git/t/t4208-log-magic-pathspec.sh
Nguyễn Thái Ngọc Duy c8556c6213 Fix calling parse_pathspec with no paths nor PATHSPEC_PREFER_* flags
When parse_pathspec() is called with no paths, the behavior could be
either return no paths, or return one path that is cwd. Some commands
do the former, some the latter. parse_pathspec() itself does not make
either the default and requires the caller to specify either flag if
it may run into this situation.

I've grep'd through all parse_pathspec() call sites. Some pass
neither, but those are guaranteed never pass empty path to
parse_pathspec(). There are two call sites that may pass empty path
and are fixed with this patch.

[jc: added a test from Antoine's bug report]

Reported-by: Antoine Pelisse <apelisse@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-22 10:49:43 -07:00

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#!/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 &&
grep 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
'
test_expect_success '"git log :" should be ambiguous' '
test_must_fail git log : 2>error &&
grep 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 '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_done