undef/git-commit-vandalism
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Keep bisection log so that it can be replayed later.

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The 'git bisect' command was very unforgiving in that once you made a
mistake telling it good/bad it was very hard to take it back.  Keep a
log of what you told it in an earlier session, so that it can be
replayed after removing everything after what you botched last time.

Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Junio C Hamano 2005-09-10 15:18:31 -07:00
parent 6bac10d89d
commit e204de28e6
1 changed files with 47 additions and 3 deletions
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50
git-bisect.sh
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@ -8,7 +8,9 @@ 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 visualize show bisect status in gitk.
git bisect replay <logfile> replay bisection log
git bisect log show bisect log.'
exit 1
}
@ -54,6 +56,7 @@ bisect_start() {
rm -f "$GIT_DIR/refs/heads/bisect"
rm -rf "$GIT_DIR/refs/bisect/"
mkdir "$GIT_DIR/refs/bisect"
echo "git-bisect start" >"$GIT_DIR/BISECT_LOG"
}
bisect_bad() {
@ -66,7 +69,9 @@ bisect_bad() {
*)
usage ;;
esac || exit
echo "$rev" > "$GIT_DIR/refs/bisect/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"
bisect_auto_next
}
@ -81,6 +86,8 @@ bisect_good() {
do
rev=$(git-rev-parse --verify "$rev") || exit
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"
done
bisect_auto_next
}
@ -129,6 +136,7 @@ bisect_next() {
git checkout new-bisect || exit
mv "$GIT_DIR/refs/heads/new-bisect" "$GIT_DIR/refs/heads/bisect" &&
ln -sf refs/heads/bisect "$GIT_DIR/HEAD"
git-show-branch "$rev"
}
bisect_visualize() {
@ -149,7 +157,39 @@ bisect_reset() {
esac
git checkout "$branch" &&
rm -fr "$GIT_DIR/refs/bisect"
rm -f "$GIT_DIR/refs/reads/bisect"
rm -f "$GIT_DIR/refs/heads/bisect"
rm -f "$GIT_DIR/BISECT_LOG"
}
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 "$command" in
start)
bisect_start
;;
good)
echo "$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 <"$1"
bisect_auto_next
}
case "$#" in
@ -172,6 +212,10 @@ case "$#" in
bisect_visualize "$@" ;;
reset)
bisect_reset "$@" ;;
replay)
bisect_replay "$@" ;;
log)
cat "$GIT_DIR/BISECT_LOG" ;;
*)
usage ;;
esac