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Bisect: implement "git bisect run <cmd>..." to automatically bisect.

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This idea was suggested by Bill Lear
(Message-ID: <17920.38942.364466.642979@lisa.zopyra.com>)
and I think it is a very good one.

This patch adds a new test file for "git bisect run", but there
is currently only one basic test.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Christian Couder
2007-03-23 08:49:59 +01:00
committed by Junio C Hamano
parent cc65343a84
commit a17c410100
3 changed files with 138 additions and 3 deletions
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54
git-bisect.sh
View File

@ -1,14 +1,15 @@
#!/bin/sh
USAGE='[start|bad|good|next|reset|visualize|replay|log]'
USAGE='[start|bad|good|next|reset|visualize|replay|log|run]'
LONG_USAGE='git bisect start [<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 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
@ -185,6 +186,7 @@ bisect_reset() {
rm -f "$GIT_DIR/refs/heads/bisect" "$GIT_DIR/head-name"
rm -f "$GIT_DIR/BISECT_LOG"
rm -f "$GIT_DIR/BISECT_NAMES"
rm -f "$GIT_DIR/BISECT_RUN"
fi
}
@ -220,6 +222,50 @@ bisect_replay () {
bisect_auto_next
}
bisect_run () {
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 "$#" in
0)
usage ;;
@ -244,6 +290,8 @@ case "$#" in
bisect_replay "$@" ;;
log)
cat "$GIT_DIR/BISECT_LOG" ;;
run)
bisect_run "$@" ;;
*)
usage ;;
esac