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git/t/t4208-log-magic-pathspec.sh
Nguyễn Thái Ngọc Duy 4db86e8b6e Update :/abc ambiguity check
:/abc may mean two things:

- as a revision, it means the revision that has "abc" in commit
  message.

- as a pathpec, it means "abc" from root.

Currently we see ":/abc" as a rev (most of the time), but never see it
as a pathspec even if "abc" exists and "git log :/abc" will gladly
take ":/abc" as rev even it's ambiguous. This patch makes it:

- ambiguous when "abc" exists on worktree
- a rev if abc does not exist on worktree
- a path if abc is not found in any commits (although better use
  "--" to avoid ambiguation because searching through commit DAG is
  expensive)

A plus from this patch is, because ":/" never matches anything as a
rev, it is never considered a valid rev and because root directory
always exists, ":/" is always unambiguously seen as a pathspec.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-21 16:57:24 -08:00

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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 &&
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_done