#!/bin/sh
-USAGE='[start|bad|good|skip|next|reset|visualize|replay|log|run]'
-LONG_USAGE='git bisect start [<bad> [<good>...]] [--] [<pathspec>...]
+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 [<bad> [<good>...]] [--] [<pathspec>...]
reset bisect state and start bisection.
git bisect bad [<rev>]
mark <rev> a known-bad revision.
git bisect log
show bisect log.
git bisect run <cmd>...
- use <cmd>... to automatically bisect.'
+ use <cmd>... to automatically bisect.
+
+Please use "git help bisect" to get the full man page.'
OPTIONS_SPEC=
. git-sh-setup
# 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) ||
+ head=$(GIT_DIR="$GIT_DIR" git symbolic-ref -q HEAD) ||
head=$(GIT_DIR="$GIT_DIR" git rev-parse --verify HEAD) ||
die "Bad HEAD - I need a HEAD"
+ #
+ # Check that we either already have BISECT_START, or that the
+ # branches bisect, new-bisect don't exist, to not override them.
+ #
+ test -s "$GIT_DIR/BISECT_START" ||
+ if git show-ref --verify -q refs/heads/bisect ||
+ git show-ref --verify -q refs/heads/new-bisect; then
+ die 'The branches "bisect" and "new-bisect" must not exist.'
+ fi
+ start_head=''
case "$head" in
refs/heads/bisect)
- if [ -s "$GIT_DIR/BISECT_START" ]; then
- branch=`cat "$GIT_DIR/BISECT_START"`
- else
- branch=master
- fi
+ branch=`cat "$GIT_DIR/BISECT_START"`
git checkout $branch || exit
;;
refs/heads/*|$_x40)
# This error message should only be triggered by cogito usage,
# and cogito users should understand it relates to cg-seek.
[ -s "$GIT_DIR/head-name" ] && die "won't bisect on seeked tree"
- echo "${head#refs/heads/}" >"$GIT_DIR/BISECT_START"
+ start_head="${head#refs/heads/}"
;;
*)
die "Bad HEAD - strange symbolic ref"
done
orig_args=$(sq "$@")
bad_seen=0
+ eval=''
while [ $# -gt 0 ]; do
arg="$1"
case "$arg" in
0) state='bad' ; bad_seen=1 ;;
*) state='good' ;;
esac
- bisect_write "$state" "$rev" 'nolog'
+ eval="$eval bisect_write '$state' '$rev' 'nolog'; "
shift
;;
esac
done
sq "$@" >"$GIT_DIR/BISECT_NAMES"
+ test -n "$start_head" && echo "$start_head" >"$GIT_DIR/BISECT_START"
+ eval "$eval"
echo "git-bisect start$orig_args" >>"$GIT_DIR/BISECT_LOG"
bisect_auto_next
}
rev=$(git rev-parse --verify HEAD) ||
die "Bad rev input: HEAD"
bisect_write "$state" "$rev" ;;
- 2,bad)
- rev=$(git rev-parse --verify "$2^{commit}") ||
- die "Bad rev input: $2"
- bisect_write "$state" "$rev" ;;
- *,good|*,skip)
+ 2,bad|*,good|*,skip)
shift
- revs=$(git rev-parse --revs-only --no-flags "$@") &&
- test '' != "$revs" || die "Bad rev input: $@"
- for rev in $revs
+ eval=''
+ for rev in "$@"
do
- rev=$(git rev-parse --verify "$rev^{commit}") ||
- die "Bad rev commit: $rev^{commit}"
- bisect_write "$state" "$rev"
- done ;;
+ sha=$(git rev-parse --verify "$rev^{commit}") ||
+ die "Bad rev input: $rev"
+ eval="$eval bisect_write '$state' '$sha'; "
+ done
+ eval "$eval" ;;
+ *,bad)
+ die "'git bisect bad' can take only one argument." ;;
*)
usage ;;
esac
bisect_next_check && bisect_next || :
}
+eval_rev_list() {
+ _eval="$1"
+
+ eval $_eval
+ res=$?
+
+ if [ $res -ne 0 ]; then
+ echo >&2 "'git rev-list --bisect-vars' failed:"
+ echo >&2 "maybe you mistake good and bad revs?"
+ exit $res
+ fi
+
+ return $res
+}
+
filter_skipped() {
_eval="$1"
_skip="$2"
if [ -z "$_skip" ]; then
- eval $_eval
+ eval_rev_list "$_eval"
return
fi
# Let's parse the output of:
# "git rev-list --bisect-vars --bisect-all ..."
- eval $_eval | while read hash line
+ eval_rev_list "$_eval" | while read hash line
do
case "$VARS,$FOUND,$TRIED,$hash" in
# We display some vars.
exit_if_skipped_commits "$bisect_rev"
echo "Bisecting: $bisect_nr revisions left to test after this"
- git branch -f new-bisect "$bisect_rev"
- git checkout -q new-bisect || exit
+ git branch -D new-bisect 2> /dev/null
+ git checkout -q -b new-bisect "$bisect_rev" || exit
git branch -M new-bisect bisect
git show-branch "$bisect_rev"
}
cmd="$1"
shift
case "$cmd" in
+ help)
+ git bisect -h ;;
start)
bisect_start "$@" ;;
bad|good|skip)