mirror of
https://github.com/git/git
synced 2024-08-24 18:26:02 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
This uses the remove-dashes target to replace "git-frotz" to "git frotz". Signed-off-by: Junio C Hamano <gitster@pobox.com>
383 lines
8.3 KiB
Bash
Executable file
383 lines
8.3 KiB
Bash
Executable file
#!/bin/sh
|
|
|
|
USAGE='[start|bad|good|next|reset|visualize|replay|log|run]'
|
|
LONG_USAGE='git bisect start [<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 next
|
|
find next bisection to test and check it out.
|
|
git bisect reset [<branch>]
|
|
finish bisection search and go back to branch.
|
|
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.'
|
|
|
|
. git-sh-setup
|
|
require_work_tree
|
|
|
|
sq() {
|
|
@@PERL@@ -e '
|
|
for (@ARGV) {
|
|
s/'\''/'\'\\\\\'\''/g;
|
|
print " '\''$_'\''";
|
|
}
|
|
print "\n";
|
|
' "$@"
|
|
}
|
|
|
|
bisect_autostart() {
|
|
test -d "$GIT_DIR/refs/bisect" || {
|
|
echo >&2 'You need to start by "git bisect start"'
|
|
if test -t 0
|
|
then
|
|
echo >&2 -n 'Do you want me to do it for you [Y/n]? '
|
|
read yesno
|
|
case "$yesno" in
|
|
[Nn]*)
|
|
exit ;;
|
|
esac
|
|
bisect_start
|
|
else
|
|
exit 1
|
|
fi
|
|
}
|
|
}
|
|
|
|
bisect_start() {
|
|
#
|
|
# Verify HEAD. If we were bisecting before this, reset to the
|
|
# top-of-line master first!
|
|
#
|
|
head=$(GIT_DIR="$GIT_DIR" git symbolic-ref HEAD) ||
|
|
die "Bad HEAD - I need a symbolic ref"
|
|
case "$head" in
|
|
refs/heads/bisect)
|
|
if [ -s "$GIT_DIR/head-name" ]; then
|
|
branch=`cat "$GIT_DIR/head-name"`
|
|
else
|
|
branch=master
|
|
fi
|
|
git checkout $branch || exit
|
|
;;
|
|
refs/heads/*)
|
|
[ -s "$GIT_DIR/head-name" ] && die "won't bisect on seeked tree"
|
|
echo "$head" | sed 's#^refs/heads/##' >"$GIT_DIR/head-name"
|
|
;;
|
|
*)
|
|
die "Bad HEAD - strange symbolic ref"
|
|
;;
|
|
esac
|
|
|
|
#
|
|
# Get rid of any old bisect state
|
|
#
|
|
bisect_clean_state
|
|
mkdir "$GIT_DIR/refs/bisect"
|
|
|
|
#
|
|
# Check for one bad and then some good revisions.
|
|
#
|
|
has_double_dash=0
|
|
for arg; do
|
|
case "$arg" in --) has_double_dash=1; break ;; esac
|
|
done
|
|
orig_args=$(sq "$@")
|
|
bad_seen=0
|
|
while [ $# -gt 0 ]; do
|
|
arg="$1"
|
|
case "$arg" in
|
|
--)
|
|
shift
|
|
break
|
|
;;
|
|
*)
|
|
rev=$(git rev-parse --verify "$arg^{commit}" 2>/dev/null) || {
|
|
test $has_double_dash -eq 1 &&
|
|
die "'$arg' does not appear to be a valid revision"
|
|
break
|
|
}
|
|
if [ $bad_seen -eq 0 ]; then
|
|
bad_seen=1
|
|
bisect_write_bad "$rev"
|
|
else
|
|
bisect_write_good "$rev"
|
|
fi
|
|
shift
|
|
;;
|
|
esac
|
|
done
|
|
|
|
sq "$@" >"$GIT_DIR/BISECT_NAMES"
|
|
echo "git-bisect start$orig_args" >>"$GIT_DIR/BISECT_LOG"
|
|
bisect_auto_next
|
|
}
|
|
|
|
bisect_bad() {
|
|
bisect_autostart
|
|
case "$#" in
|
|
0)
|
|
rev=$(git rev-parse --verify HEAD) ;;
|
|
1)
|
|
rev=$(git rev-parse --verify "$1^{commit}") ;;
|
|
*)
|
|
usage ;;
|
|
esac || exit
|
|
bisect_write_bad "$rev"
|
|
echo "git-bisect bad $rev" >>"$GIT_DIR/BISECT_LOG"
|
|
bisect_auto_next
|
|
}
|
|
|
|
bisect_write_bad() {
|
|
rev="$1"
|
|
echo "$rev" >"$GIT_DIR/refs/bisect/bad"
|
|
echo "# bad: "$(git show-branch $rev) >>"$GIT_DIR/BISECT_LOG"
|
|
}
|
|
|
|
bisect_good() {
|
|
bisect_autostart
|
|
case "$#" in
|
|
0) revs=$(git rev-parse --verify HEAD) || exit ;;
|
|
*) revs=$(git rev-parse --revs-only --no-flags "$@") &&
|
|
test '' != "$revs" || die "Bad rev input: $@" ;;
|
|
esac
|
|
for rev in $revs
|
|
do
|
|
rev=$(git rev-parse --verify "$rev^{commit}") || exit
|
|
bisect_write_good "$rev"
|
|
echo "git-bisect good $rev" >>"$GIT_DIR/BISECT_LOG"
|
|
|
|
done
|
|
bisect_auto_next
|
|
}
|
|
|
|
bisect_write_good() {
|
|
rev="$1"
|
|
echo "$rev" >"$GIT_DIR/refs/bisect/good-$rev"
|
|
echo "# good: "$(git show-branch $rev) >>"$GIT_DIR/BISECT_LOG"
|
|
}
|
|
|
|
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,$1" in
|
|
,,*)
|
|
: have both good and bad - ok
|
|
;;
|
|
*,)
|
|
# do not have both but not asked to fail - just report.
|
|
false
|
|
;;
|
|
t,,good)
|
|
# have bad but not good. we could bisect although
|
|
# this is less optimum.
|
|
echo >&2 'Warning: bisecting only with a bad commit.'
|
|
if test -t 0
|
|
then
|
|
printf >&2 'Are you sure [Y/n]? '
|
|
case "$(read yesno)" in [Nn]*) exit 1 ;; esac
|
|
fi
|
|
: bisect without good...
|
|
;;
|
|
*)
|
|
THEN=''
|
|
test -d "$GIT_DIR/refs/bisect" || {
|
|
echo >&2 'You need to start by "git bisect start".'
|
|
THEN='then '
|
|
}
|
|
echo >&2 'You '$THEN'need to give me at least one good' \
|
|
'and one bad revisions.'
|
|
echo >&2 '(You can use "git bisect bad" and' \
|
|
'"git bisect good" for that.)'
|
|
exit 1 ;;
|
|
esac
|
|
}
|
|
|
|
bisect_auto_next() {
|
|
bisect_next_check && bisect_next || :
|
|
}
|
|
|
|
bisect_next() {
|
|
case "$#" in 0) ;; *) usage ;; esac
|
|
bisect_autostart
|
|
bisect_next_check good
|
|
|
|
bad=$(git rev-parse --verify refs/bisect/bad) &&
|
|
good=$(git for-each-ref --format='^%(objectname)' \
|
|
"refs/bisect/good-*" | tr '[\012]' ' ') &&
|
|
eval="git rev-list --bisect-vars $good $bad --" &&
|
|
eval="$eval $(cat "$GIT_DIR/BISECT_NAMES")" &&
|
|
eval=$(eval "$eval") &&
|
|
eval "$eval" || exit
|
|
|
|
if [ -z "$bisect_rev" ]; then
|
|
echo "$bad was both good and bad"
|
|
exit 1
|
|
fi
|
|
if [ "$bisect_rev" = "$bad" ]; then
|
|
echo "$bisect_rev is first bad commit"
|
|
git diff-tree --pretty $bisect_rev
|
|
exit 0
|
|
fi
|
|
|
|
echo "Bisecting: $bisect_nr revisions left to test after this"
|
|
echo "$bisect_rev" >"$GIT_DIR/refs/heads/new-bisect"
|
|
git checkout -q new-bisect || exit
|
|
mv "$GIT_DIR/refs/heads/new-bisect" "$GIT_DIR/refs/heads/bisect" &&
|
|
GIT_DIR="$GIT_DIR" git symbolic-ref HEAD refs/heads/bisect
|
|
git show-branch "$bisect_rev"
|
|
}
|
|
|
|
bisect_visualize() {
|
|
bisect_next_check fail
|
|
not=`cd "$GIT_DIR/refs" && echo bisect/good-*`
|
|
eval gitk bisect/bad --not $not -- $(cat "$GIT_DIR/BISECT_NAMES")
|
|
}
|
|
|
|
bisect_reset() {
|
|
case "$#" in
|
|
0) if [ -s "$GIT_DIR/head-name" ]; then
|
|
branch=`cat "$GIT_DIR/head-name"`
|
|
else
|
|
branch=master
|
|
fi ;;
|
|
1) git show-ref --verify --quiet -- "refs/heads/$1" || {
|
|
echo >&2 "$1 does not seem to be a valid branch"
|
|
exit 1
|
|
}
|
|
branch="$1" ;;
|
|
*)
|
|
usage ;;
|
|
esac
|
|
if git checkout "$branch"; then
|
|
rm -f "$GIT_DIR/head-name"
|
|
bisect_clean_state
|
|
fi
|
|
}
|
|
|
|
bisect_clean_state() {
|
|
rm -fr "$GIT_DIR/refs/bisect"
|
|
rm -f "$GIT_DIR/refs/heads/bisect"
|
|
rm -f "$GIT_DIR/BISECT_LOG"
|
|
rm -f "$GIT_DIR/BISECT_NAMES"
|
|
rm -f "$GIT_DIR/BISECT_RUN"
|
|
}
|
|
|
|
bisect_replay () {
|
|
test -r "$1" || {
|
|
echo >&2 "cannot read $1 for replaying"
|
|
exit 1
|
|
}
|
|
bisect_reset
|
|
while read bisect command rev
|
|
do
|
|
test "$bisect" = "git-bisect" || continue
|
|
case "$command" in
|
|
start)
|
|
cmd="bisect_start $rev"
|
|
eval "$cmd"
|
|
;;
|
|
good)
|
|
echo "$rev" >"$GIT_DIR/refs/bisect/good-$rev"
|
|
echo "# good: "$(git show-branch $rev) >>"$GIT_DIR/BISECT_LOG"
|
|
echo "git-bisect good $rev" >>"$GIT_DIR/BISECT_LOG"
|
|
;;
|
|
bad)
|
|
echo "$rev" >"$GIT_DIR/refs/bisect/bad"
|
|
echo "# bad: "$(git show-branch $rev) >>"$GIT_DIR/BISECT_LOG"
|
|
echo "git-bisect bad $rev" >>"$GIT_DIR/BISECT_LOG"
|
|
;;
|
|
*)
|
|
echo >&2 "?? what are you talking about?"
|
|
exit 1 ;;
|
|
esac
|
|
done <"$1"
|
|
bisect_auto_next
|
|
}
|
|
|
|
bisect_run () {
|
|
bisect_next_check fail
|
|
|
|
while true
|
|
do
|
|
echo "running $@"
|
|
"$@"
|
|
res=$?
|
|
|
|
# Check for really bad run error.
|
|
if [ $res -lt 0 -o $res -ge 128 ]; then
|
|
echo >&2 "bisect run failed:"
|
|
echo >&2 "exit code $res from '$@' is < 0 or >= 128"
|
|
exit $res
|
|
fi
|
|
|
|
# Use "bisect_good" or "bisect_bad"
|
|
# depending on run success or failure.
|
|
if [ $res -gt 0 ]; then
|
|
next_bisect='bisect_bad'
|
|
else
|
|
next_bisect='bisect_good'
|
|
fi
|
|
|
|
# We have to use a subshell because bisect_good or
|
|
# bisect_bad functions can exit.
|
|
( $next_bisect > "$GIT_DIR/BISECT_RUN" )
|
|
res=$?
|
|
|
|
cat "$GIT_DIR/BISECT_RUN"
|
|
|
|
if [ $res -ne 0 ]; then
|
|
echo >&2 "bisect run failed:"
|
|
echo >&2 "$next_bisect exited with error code $res"
|
|
exit $res
|
|
fi
|
|
|
|
if grep "is first bad commit" "$GIT_DIR/BISECT_RUN" > /dev/null; then
|
|
echo "bisect run success"
|
|
exit 0;
|
|
fi
|
|
|
|
done
|
|
}
|
|
|
|
|
|
case "$#" in
|
|
0)
|
|
usage ;;
|
|
*)
|
|
cmd="$1"
|
|
shift
|
|
case "$cmd" in
|
|
start)
|
|
bisect_start "$@" ;;
|
|
bad)
|
|
bisect_bad "$@" ;;
|
|
good)
|
|
bisect_good "$@" ;;
|
|
next)
|
|
# Not sure we want "next" at the UI level anymore.
|
|
bisect_next "$@" ;;
|
|
visualize)
|
|
bisect_visualize "$@" ;;
|
|
reset)
|
|
bisect_reset "$@" ;;
|
|
replay)
|
|
bisect_replay "$@" ;;
|
|
log)
|
|
cat "$GIT_DIR/BISECT_LOG" ;;
|
|
run)
|
|
bisect_run "$@" ;;
|
|
*)
|
|
usage ;;
|
|
esac
|
|
esac
|