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git/t/t6120-describe.sh
SZEDER Gábor 2bd07065c3 describe --contains: default to HEAD when no commit-ish is given
'git describe --contains' doesn't default to HEAD when no commit is
given, and it doesn't produce any output, not even an error:

  ~/src/git ((v2.5.0))$ ./git describe --contains
  ~/src/git ((v2.5.0))$ ./git describe --contains HEAD
  v2.5.0^0

Unlike other 'git describe' options, the '--contains' code path is
implemented by calling 'name-rev' with a bunch of options plus all the
commit-ishes that were passed to 'git describe'.  If no commit-ish was
present, then 'name-rev' got invoked with none, which then leads to the
behavior illustrated above.

Porcelain commands usually default to HEAD when no commit-ish is given,
and 'git describe' already does so in all other cases, so it should do
so with '--contains' as well.

Pass HEAD to 'name-rev' when no commit-ish is given on the command line
to make '--contains' behave consistently with other 'git describe'
options.  While at it, use argv_array_pushv() instead of the loop to
pass commit-ishes to 'git name-rev'.

'git describe's short help already indicates that the commit-ish is
optional, but the synopsis in the man page doesn't, so update it
accordingly as well.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-25 09:35:13 -07:00

209 lines
4.7 KiB
Bash
Executable file

#!/bin/sh
test_description='test describe
B
.--------------o----o----o----x
/ / /
o----o----o----o----o----. /
\ A c /
.------------o---o---o
D,R e
'
. ./test-lib.sh
check_describe () {
expect="$1"
shift
R=$(git describe "$@" 2>err.actual)
S=$?
cat err.actual >&3
test_expect_success "describe $*" '
test $S = 0 &&
case "$R" in
$expect) echo happy ;;
*) echo "Oops - $R is not $expect";
false ;;
esac
'
}
test_expect_success setup '
test_tick &&
echo one >file && git add file && git commit -m initial &&
one=$(git rev-parse HEAD) &&
git describe --always HEAD &&
test_tick &&
echo two >file && git add file && git commit -m second &&
two=$(git rev-parse HEAD) &&
test_tick &&
echo three >file && git add file && git commit -m third &&
test_tick &&
echo A >file && git add file && git commit -m A &&
test_tick &&
git tag -a -m A A &&
test_tick &&
echo c >file && git add file && git commit -m c &&
test_tick &&
git tag c &&
git reset --hard $two &&
test_tick &&
echo B >side && git add side && git commit -m B &&
test_tick &&
git tag -a -m B B &&
test_tick &&
git merge -m Merged c &&
merged=$(git rev-parse HEAD) &&
git reset --hard $two &&
test_tick &&
echo D >another && git add another && git commit -m D &&
test_tick &&
git tag -a -m D D &&
test_tick &&
git tag -a -m R R &&
test_tick &&
echo DD >another && git commit -a -m another &&
test_tick &&
git tag e &&
test_tick &&
echo DDD >another && git commit -a -m "yet another" &&
test_tick &&
git merge -m Merged $merged &&
test_tick &&
echo X >file && echo X >side && git add file side &&
git commit -m x
'
check_describe A-* HEAD
check_describe A-* HEAD^
check_describe R-* HEAD^^
check_describe A-* HEAD^^2
check_describe B HEAD^^2^
check_describe R-* HEAD^^^
check_describe c-* --tags HEAD
check_describe c-* --tags HEAD^
check_describe e-* --tags HEAD^^
check_describe c-* --tags HEAD^^2
check_describe B --tags HEAD^^2^
check_describe e --tags HEAD^^^
check_describe heads/master --all HEAD
check_describe tags/c-* --all HEAD^
check_describe tags/e --all HEAD^^^
check_describe B-0-* --long HEAD^^2^
check_describe A-3-* --long HEAD^^2
check_describe c-7-* --tags
check_describe e-3-* --first-parent --tags
test_expect_success 'describe --contains defaults to HEAD without commit-ish' '
echo "A^0" >expect &&
git checkout A &&
test_when_finished "git checkout -" &&
git describe --contains >actual &&
test_cmp expect actual
'
: >err.expect
check_describe A --all A^0
test_expect_success 'no warning was displayed for A' '
test_cmp err.expect err.actual
'
test_expect_success 'rename tag A to Q locally' '
mv .git/refs/tags/A .git/refs/tags/Q
'
cat - >err.expect <<EOF
warning: tag 'A' is really 'Q' here
EOF
check_describe A-* HEAD
test_expect_success 'warning was displayed for Q' '
test_i18ncmp err.expect err.actual
'
test_expect_success 'rename tag Q back to A' '
mv .git/refs/tags/Q .git/refs/tags/A
'
test_expect_success 'pack tag refs' 'git pack-refs'
check_describe A-* HEAD
check_describe "A-*[0-9a-f]" --dirty
test_expect_success 'set-up dirty work tree' '
echo >>file
'
check_describe "A-*[0-9a-f]-dirty" --dirty
check_describe "A-*[0-9a-f].mod" --dirty=.mod
test_expect_success 'describe --dirty HEAD' '
test_must_fail git describe --dirty HEAD
'
test_expect_success 'set-up matching pattern tests' '
git tag -a -m test-annotated test-annotated &&
echo >>file &&
test_tick &&
git commit -a -m "one more" &&
git tag test1-lightweight &&
echo >>file &&
test_tick &&
git commit -a -m "yet another" &&
git tag test2-lightweight &&
echo >>file &&
test_tick &&
git commit -a -m "even more"
'
check_describe "test-annotated-*" --match="test-*"
check_describe "test1-lightweight-*" --tags --match="test1-*"
check_describe "test2-lightweight-*" --tags --match="test2-*"
check_describe "test2-lightweight-*" --long --tags --match="test2-*" HEAD^
test_expect_success 'name-rev with exact tags' '
echo A >expect &&
tag_object=$(git rev-parse refs/tags/A) &&
git name-rev --tags --name-only $tag_object >actual &&
test_cmp expect actual &&
echo "A^0" >expect &&
tagged_commit=$(git rev-parse "refs/tags/A^0") &&
git name-rev --tags --name-only $tagged_commit >actual &&
test_cmp expect actual
'
test_expect_success 'describe --contains with the exact tags' '
echo "A^0" >expect &&
tag_object=$(git rev-parse refs/tags/A) &&
git describe --contains $tag_object >actual &&
test_cmp expect actual &&
echo "A^0" >expect &&
tagged_commit=$(git rev-parse "refs/tags/A^0") &&
git describe --contains $tagged_commit >actual &&
test_cmp expect actual
'
test_done