bisect: add support for bisecting bare repositories

This enhances the support for bisecting history in bare repositories.

The "git bisect" command no longer needs to be run inside a repository
with a working tree; it defaults to --no-checkout when run in a bare
repository.

Two tests are included to demonstrate this behaviour.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Reviewed-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Jon Seymour <jon.seymour@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jon Seymour 2011-08-09 12:11:54 +10:00 committed by Junio C Hamano
parent 43b8ff4b14
commit 24c512803d
4 changed files with 40 additions and 3 deletions

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@ -273,6 +273,8 @@ it point to the commit that should be tested.
+
This option may be useful when the test you would perform in each step
does not require a checked out tree.
+
If the repository is bare, `--no-checkout` is assumed.
EXAMPLES
--------

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@ -29,7 +29,6 @@ Please use "git help bisect" to get the full man page.'
OPTIONS_SPEC=
. git-sh-setup
. git-sh-i18n
require_work_tree
_x40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
_x40="$_x40$_x40$_x40$_x40$_x40$_x40$_x40$_x40"
@ -79,7 +78,12 @@ bisect_start() {
orig_args=$(git rev-parse --sq-quote "$@")
bad_seen=0
eval=''
mode=''
if test "z$(git rev-parse --is-bare-repository)" != zfalse
then
mode=--no-checkout
else
mode=''
fi
while [ $# -gt 0 ]; do
arg="$1"
case "$arg" in

2
git.c
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@ -320,7 +320,7 @@ static void handle_internal_command(int argc, const char **argv)
{ "annotate", cmd_annotate, RUN_SETUP },
{ "apply", cmd_apply, RUN_SETUP_GENTLY },
{ "archive", cmd_archive },
{ "bisect--helper", cmd_bisect__helper, RUN_SETUP | NEED_WORK_TREE },
{ "bisect--helper", cmd_bisect__helper, RUN_SETUP },
{ "blame", cmd_blame, RUN_SETUP },
{ "branch", cmd_branch, RUN_SETUP },
{ "bundle", cmd_bundle, RUN_SETUP_GENTLY },

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@ -592,6 +592,37 @@ test_expect_success 'erroring out when using bad path parameters' '
grep "bad path parameters" error.txt
'
test_expect_success 'test bisection on bare repo - --no-checkout specified' '
git clone --bare . bare.nocheckout &&
(
cd bare.nocheckout &&
git bisect start --no-checkout &&
git bisect good $HASH1 &&
git bisect bad $HASH4 &&
git bisect run eval \
"test \$(git rev-list BISECT_HEAD ^$HASH2 --max-count=1 | wc -l) = 0" \
>../nocheckout.log &&
git bisect reset
) &&
grep "$HASH3 is the first bad commit" nocheckout.log
'
test_expect_success 'test bisection on bare repo - --no-checkout defaulted' '
git clone --bare . bare.defaulted &&
(
cd bare.defaulted &&
git bisect start &&
git bisect good $HASH1 &&
git bisect bad $HASH4 &&
git bisect run eval \
"test \$(git rev-list BISECT_HEAD ^$HASH2 --max-count=1 | wc -l) = 0" \
>../defaulted.log &&
git bisect reset
) &&
grep "$HASH3 is the first bad commit" defaulted.log
'
#
# This creates a broken branch which cannot be checked out because
# the tree created has been deleted.