mirror of
https://github.com/git/git.git
synced 2024-12-05 07:53:59 +08:00
dddc411f7a
* js/bisect-no-checkout: bisect: fix exiting when checkout failed in bisect_start()
510 lines
11 KiB
Bash
Executable File
510 lines
11 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
USAGE='[help|start|bad|good|skip|next|reset|visualize|replay|log|run]'
|
|
LONG_USAGE='git bisect help
|
|
print this long help message.
|
|
git bisect start [--no-checkout] [<bad> [<good>...]] [--] [<pathspec>...]
|
|
reset bisect state and start bisection.
|
|
git bisect bad [<rev>]
|
|
mark <rev> a known-bad revision.
|
|
git bisect good [<rev>...]
|
|
mark <rev>... known-good revisions.
|
|
git bisect skip [(<rev>|<range>)...]
|
|
mark <rev>... untestable revisions.
|
|
git bisect next
|
|
find next bisection to test and check it out.
|
|
git bisect reset [<commit>]
|
|
finish bisection search and go back to commit.
|
|
git bisect visualize
|
|
show bisect status in gitk.
|
|
git bisect replay <logfile>
|
|
replay bisection log.
|
|
git bisect log
|
|
show bisect log.
|
|
git bisect run <cmd>...
|
|
use <cmd>... to automatically bisect.
|
|
|
|
Please use "git help bisect" to get the full man page.'
|
|
|
|
OPTIONS_SPEC=
|
|
. git-sh-setup
|
|
. git-sh-i18n
|
|
|
|
_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"
|
|
|
|
bisect_head()
|
|
{
|
|
if test -f "$GIT_DIR/BISECT_HEAD"
|
|
then
|
|
echo BISECT_HEAD
|
|
else
|
|
echo HEAD
|
|
fi
|
|
}
|
|
|
|
bisect_autostart() {
|
|
test -s "$GIT_DIR/BISECT_START" || {
|
|
gettextln "You need to start by \"git bisect start\"" >&2
|
|
if test -t 0
|
|
then
|
|
# TRANSLATORS: Make sure to include [Y] and [n] in your
|
|
# translation. The program will only accept English input
|
|
# at this point.
|
|
gettext "Do you want me to do it for you [Y/n]? " >&2
|
|
read yesno
|
|
case "$yesno" in
|
|
[Nn]*)
|
|
exit ;;
|
|
esac
|
|
bisect_start
|
|
else
|
|
exit 1
|
|
fi
|
|
}
|
|
}
|
|
|
|
bisect_start() {
|
|
#
|
|
# Check for one bad and then some good revisions.
|
|
#
|
|
has_double_dash=0
|
|
for arg; do
|
|
case "$arg" in --) has_double_dash=1; break ;; esac
|
|
done
|
|
orig_args=$(git rev-parse --sq-quote "$@")
|
|
bad_seen=0
|
|
eval=''
|
|
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
|
|
--)
|
|
shift
|
|
break
|
|
;;
|
|
--no-checkout)
|
|
mode=--no-checkout
|
|
shift ;;
|
|
--*)
|
|
die "$(eval_gettext "unrecognised option: '\$arg'")" ;;
|
|
*)
|
|
rev=$(git rev-parse -q --verify "$arg^{commit}") || {
|
|
test $has_double_dash -eq 1 &&
|
|
die "$(eval_gettext "'\$arg' does not appear to be a valid revision")"
|
|
break
|
|
}
|
|
case $bad_seen in
|
|
0) state='bad' ; bad_seen=1 ;;
|
|
*) state='good' ;;
|
|
esac
|
|
eval="$eval bisect_write '$state' '$rev' 'nolog' &&"
|
|
shift
|
|
;;
|
|
esac
|
|
done
|
|
|
|
#
|
|
# Verify HEAD.
|
|
#
|
|
head=$(GIT_DIR="$GIT_DIR" git symbolic-ref -q HEAD) ||
|
|
head=$(GIT_DIR="$GIT_DIR" git rev-parse --verify HEAD) ||
|
|
die "$(gettext "Bad HEAD - I need a HEAD")"
|
|
|
|
#
|
|
# Check if we are bisecting.
|
|
#
|
|
start_head=''
|
|
if test -s "$GIT_DIR/BISECT_START"
|
|
then
|
|
# Reset to the rev from where we started.
|
|
start_head=$(cat "$GIT_DIR/BISECT_START")
|
|
if test "z$mode" != "z--no-checkout"
|
|
then
|
|
git checkout "$start_head" -- ||
|
|
die "$(eval_gettext "Checking out '\$start_head' failed. Try 'git bisect reset <validbranch>'.")"
|
|
fi
|
|
else
|
|
# Get rev from where we start.
|
|
case "$head" in
|
|
refs/heads/*|$_x40)
|
|
# This error message should only be triggered by
|
|
# cogito usage, and cogito users should understand
|
|
# it relates to cg-seek.
|
|
[ -s "$GIT_DIR/head-name" ] &&
|
|
die "$(gettext "won't bisect on seeked tree")"
|
|
start_head="${head#refs/heads/}"
|
|
;;
|
|
*)
|
|
die "$(gettext "Bad HEAD - strange symbolic ref")"
|
|
;;
|
|
esac
|
|
fi
|
|
|
|
#
|
|
# Get rid of any old bisect state.
|
|
#
|
|
bisect_clean_state || exit
|
|
|
|
#
|
|
# Change state.
|
|
# In case of mistaken revs or checkout error, or signals received,
|
|
# "bisect_auto_next" below may exit or misbehave.
|
|
# We have to trap this to be able to clean up using
|
|
# "bisect_clean_state".
|
|
#
|
|
trap 'bisect_clean_state' 0
|
|
trap 'exit 255' 1 2 3 15
|
|
|
|
#
|
|
# Write new start state.
|
|
#
|
|
echo "$start_head" >"$GIT_DIR/BISECT_START" && {
|
|
test "z$mode" != "z--no-checkout" ||
|
|
git update-ref --no-deref BISECT_HEAD "$start_head"
|
|
} &&
|
|
git rev-parse --sq-quote "$@" >"$GIT_DIR/BISECT_NAMES" &&
|
|
eval "$eval true" &&
|
|
echo "git bisect start$orig_args" >>"$GIT_DIR/BISECT_LOG" || exit
|
|
#
|
|
# Check if we can proceed to the next bisect state.
|
|
#
|
|
bisect_auto_next
|
|
|
|
trap '-' 0
|
|
}
|
|
|
|
bisect_write() {
|
|
state="$1"
|
|
rev="$2"
|
|
nolog="$3"
|
|
case "$state" in
|
|
bad) tag="$state" ;;
|
|
good|skip) tag="$state"-"$rev" ;;
|
|
*) die "$(eval_gettext "Bad bisect_write argument: \$state")" ;;
|
|
esac
|
|
git update-ref "refs/bisect/$tag" "$rev" || exit
|
|
echo "# $state: $(git show-branch $rev)" >>"$GIT_DIR/BISECT_LOG"
|
|
test -n "$nolog" || echo "git bisect $state $rev" >>"$GIT_DIR/BISECT_LOG"
|
|
}
|
|
|
|
is_expected_rev() {
|
|
test -f "$GIT_DIR/BISECT_EXPECTED_REV" &&
|
|
test "$1" = $(cat "$GIT_DIR/BISECT_EXPECTED_REV")
|
|
}
|
|
|
|
check_expected_revs() {
|
|
for _rev in "$@"; do
|
|
if ! is_expected_rev "$_rev"
|
|
then
|
|
rm -f "$GIT_DIR/BISECT_ANCESTORS_OK"
|
|
rm -f "$GIT_DIR/BISECT_EXPECTED_REV"
|
|
return
|
|
fi
|
|
done
|
|
}
|
|
|
|
bisect_skip() {
|
|
all=''
|
|
for arg in "$@"
|
|
do
|
|
case "$arg" in
|
|
*..*)
|
|
revs=$(git rev-list "$arg") || die "$(eval_gettext "Bad rev input: \$arg")" ;;
|
|
*)
|
|
revs=$(git rev-parse --sq-quote "$arg") ;;
|
|
esac
|
|
all="$all $revs"
|
|
done
|
|
eval bisect_state 'skip' $all
|
|
}
|
|
|
|
bisect_state() {
|
|
bisect_autostart
|
|
state=$1
|
|
case "$#,$state" in
|
|
0,*)
|
|
die "$(gettext "Please call 'bisect_state' with at least one argument.")" ;;
|
|
1,bad|1,good|1,skip)
|
|
rev=$(git rev-parse --verify $(bisect_head)) ||
|
|
die "$(gettext "Bad rev input: $(bisect_head)")"
|
|
bisect_write "$state" "$rev"
|
|
check_expected_revs "$rev" ;;
|
|
2,bad|*,good|*,skip)
|
|
shift
|
|
eval=''
|
|
for rev in "$@"
|
|
do
|
|
sha=$(git rev-parse --verify "$rev^{commit}") ||
|
|
die "$(eval_gettext "Bad rev input: \$rev")"
|
|
eval="$eval bisect_write '$state' '$sha'; "
|
|
done
|
|
eval "$eval"
|
|
check_expected_revs "$@" ;;
|
|
*,bad)
|
|
die "$(gettext "'git bisect bad' can take only one argument.")" ;;
|
|
*)
|
|
usage ;;
|
|
esac
|
|
bisect_auto_next
|
|
}
|
|
|
|
bisect_next_check() {
|
|
missing_good= missing_bad=
|
|
git show-ref -q --verify refs/bisect/bad || missing_bad=t
|
|
test -n "$(git for-each-ref "refs/bisect/good-*")" || missing_good=t
|
|
|
|
case "$missing_good,$missing_bad,$1" in
|
|
,,*)
|
|
: have both good and bad - ok
|
|
;;
|
|
*,)
|
|
# do not have both but not asked to fail - just report.
|
|
false
|
|
;;
|
|
t,,good)
|
|
# have bad but not good. we could bisect although
|
|
# this is less optimum.
|
|
gettextln "Warning: bisecting only with a bad commit." >&2
|
|
if test -t 0
|
|
then
|
|
# TRANSLATORS: Make sure to include [Y] and [n] in your
|
|
# translation. The program will only accept English input
|
|
# at this point.
|
|
gettext "Are you sure [Y/n]? " >&2
|
|
read yesno
|
|
case "$yesno" in [Nn]*) exit 1 ;; esac
|
|
fi
|
|
: bisect without good...
|
|
;;
|
|
*)
|
|
|
|
if test -s "$GIT_DIR/BISECT_START"
|
|
then
|
|
gettextln "You need to give me at least one good and one bad revisions.
|
|
(You can use \"git bisect bad\" and \"git bisect good\" for that.)" >&2
|
|
else
|
|
gettextln "You need to start by \"git bisect start\".
|
|
You then need to give me at least one good and one bad revisions.
|
|
(You can use \"git bisect bad\" and \"git bisect good\" for that.)" >&2
|
|
fi
|
|
exit 1 ;;
|
|
esac
|
|
}
|
|
|
|
bisect_auto_next() {
|
|
bisect_next_check && bisect_next || :
|
|
}
|
|
|
|
bisect_next() {
|
|
case "$#" in 0) ;; *) usage ;; esac
|
|
bisect_autostart
|
|
bisect_next_check good
|
|
|
|
# Perform all bisection computation, display and checkout
|
|
git bisect--helper --next-all $(test -f "$GIT_DIR/BISECT_HEAD" && echo --no-checkout)
|
|
res=$?
|
|
|
|
# Check if we should exit because bisection is finished
|
|
test $res -eq 10 && exit 0
|
|
|
|
# Check for an error in the bisection process
|
|
test $res -ne 0 && exit $res
|
|
|
|
return 0
|
|
}
|
|
|
|
bisect_visualize() {
|
|
bisect_next_check fail
|
|
|
|
if test $# = 0
|
|
then
|
|
if test -n "${DISPLAY+set}${SESSIONNAME+set}${MSYSTEM+set}${SECURITYSESSIONID+set}" &&
|
|
type gitk >/dev/null 2>&1
|
|
then
|
|
set gitk
|
|
else
|
|
set git log
|
|
fi
|
|
else
|
|
case "$1" in
|
|
git*|tig) ;;
|
|
-*) set git log "$@" ;;
|
|
*) set git "$@" ;;
|
|
esac
|
|
fi
|
|
|
|
eval '"$@"' --bisect -- $(cat "$GIT_DIR/BISECT_NAMES")
|
|
}
|
|
|
|
bisect_reset() {
|
|
test -s "$GIT_DIR/BISECT_START" || {
|
|
gettextln "We are not bisecting."
|
|
return
|
|
}
|
|
case "$#" in
|
|
0) branch=$(cat "$GIT_DIR/BISECT_START") ;;
|
|
1) git rev-parse --quiet --verify "$1^{commit}" > /dev/null || {
|
|
invalid="$1"
|
|
die "$(eval_gettext "'\$invalid' is not a valid commit")"
|
|
}
|
|
branch="$1" ;;
|
|
*)
|
|
usage ;;
|
|
esac
|
|
|
|
if ! test -f "$GIT_DIR/BISECT_HEAD" && ! git checkout "$branch" --
|
|
then
|
|
die "$(eval_gettext "Could not check out original HEAD '\$branch'.
|
|
Try 'git bisect reset <commit>'.")"
|
|
fi
|
|
bisect_clean_state
|
|
}
|
|
|
|
bisect_clean_state() {
|
|
# There may be some refs packed during bisection.
|
|
git for-each-ref --format='%(refname) %(objectname)' refs/bisect/\* |
|
|
while read ref hash
|
|
do
|
|
git update-ref -d $ref $hash || exit
|
|
done
|
|
rm -f "$GIT_DIR/BISECT_EXPECTED_REV" &&
|
|
rm -f "$GIT_DIR/BISECT_ANCESTORS_OK" &&
|
|
rm -f "$GIT_DIR/BISECT_LOG" &&
|
|
rm -f "$GIT_DIR/BISECT_NAMES" &&
|
|
rm -f "$GIT_DIR/BISECT_RUN" &&
|
|
# Cleanup head-name if it got left by an old version of git-bisect
|
|
rm -f "$GIT_DIR/head-name" &&
|
|
git update-ref -d --no-deref BISECT_HEAD &&
|
|
# clean up BISECT_START last
|
|
rm -f "$GIT_DIR/BISECT_START"
|
|
}
|
|
|
|
bisect_replay () {
|
|
file="$1"
|
|
test "$#" -eq 1 || die "$(gettext "No logfile given")"
|
|
test -r "$file" || die "$(eval_gettext "cannot read \$file for replaying")"
|
|
bisect_reset
|
|
while read git bisect command rev
|
|
do
|
|
test "$git $bisect" = "git bisect" -o "$git" = "git-bisect" || continue
|
|
if test "$git" = "git-bisect"
|
|
then
|
|
rev="$command"
|
|
command="$bisect"
|
|
fi
|
|
case "$command" in
|
|
start)
|
|
cmd="bisect_start $rev"
|
|
eval "$cmd" ;;
|
|
good|bad|skip)
|
|
bisect_write "$command" "$rev" ;;
|
|
*)
|
|
die "$(gettext "?? what are you talking about?")" ;;
|
|
esac
|
|
done <"$file"
|
|
bisect_auto_next
|
|
}
|
|
|
|
bisect_run () {
|
|
bisect_next_check fail
|
|
|
|
while true
|
|
do
|
|
command="$@"
|
|
eval_gettextln "running \$command"
|
|
"$@"
|
|
res=$?
|
|
|
|
# Check for really bad run error.
|
|
if [ $res -lt 0 -o $res -ge 128 ]
|
|
then
|
|
eval_gettextln "bisect run failed:
|
|
exit code \$res from '\$command' is < 0 or >= 128" >&2
|
|
exit $res
|
|
fi
|
|
|
|
# Find current state depending on run success or failure.
|
|
# A special exit code of 125 means cannot test.
|
|
if [ $res -eq 125 ]
|
|
then
|
|
state='skip'
|
|
elif [ $res -gt 0 ]
|
|
then
|
|
state='bad'
|
|
else
|
|
state='good'
|
|
fi
|
|
|
|
# We have to use a subshell because "bisect_state" can exit.
|
|
( bisect_state $state > "$GIT_DIR/BISECT_RUN" )
|
|
res=$?
|
|
|
|
cat "$GIT_DIR/BISECT_RUN"
|
|
|
|
if sane_grep "first bad commit could be any of" "$GIT_DIR/BISECT_RUN" \
|
|
> /dev/null
|
|
then
|
|
gettextln "bisect run cannot continue any more" >&2
|
|
exit $res
|
|
fi
|
|
|
|
if [ $res -ne 0 ]
|
|
then
|
|
eval_gettextln "bisect run failed:
|
|
'bisect_state \$state' exited with error code \$res" >&2
|
|
exit $res
|
|
fi
|
|
|
|
if sane_grep "is the first bad commit" "$GIT_DIR/BISECT_RUN" > /dev/null
|
|
then
|
|
gettextln "bisect run success"
|
|
exit 0;
|
|
fi
|
|
|
|
done
|
|
}
|
|
|
|
bisect_log () {
|
|
test -s "$GIT_DIR/BISECT_LOG" || die "$(gettext "We are not bisecting.")"
|
|
cat "$GIT_DIR/BISECT_LOG"
|
|
}
|
|
|
|
case "$#" in
|
|
0)
|
|
usage ;;
|
|
*)
|
|
cmd="$1"
|
|
shift
|
|
case "$cmd" in
|
|
help)
|
|
git bisect -h ;;
|
|
start)
|
|
bisect_start "$@" ;;
|
|
bad|good)
|
|
bisect_state "$cmd" "$@" ;;
|
|
skip)
|
|
bisect_skip "$@" ;;
|
|
next)
|
|
# Not sure we want "next" at the UI level anymore.
|
|
bisect_next "$@" ;;
|
|
visualize|view)
|
|
bisect_visualize "$@" ;;
|
|
reset)
|
|
bisect_reset "$@" ;;
|
|
replay)
|
|
bisect_replay "$@" ;;
|
|
log)
|
|
bisect_log ;;
|
|
run)
|
|
bisect_run "$@" ;;
|
|
*)
|
|
usage ;;
|
|
esac
|
|
esac
|