mark <rev> a known-bad revision.
git bisect good [<rev>...]
mark <rev>... known-good revisions.
-git bisect skip [<rev>...]
+git bisect skip [(<rev>|<range>)...]
mark <rev>... untestable revisions.
git bisect next
find next bisection to test and check it out.
done
}
+bisect_skip() {
+ all=''
+ for arg in "$@"
+ do
+ case "$arg" in
+ *..*)
+ revs=$(git rev-list "$arg") || die "Bad rev input: $arg" ;;
+ *)
+ revs=$(sq "$arg") ;;
+ esac
+ all="$all $revs"
+ done
+ eval bisect_state 'skip' $all
+}
+
bisect_state() {
bisect_autostart
state=$1
_skip="$2"
if [ -z "$_skip" ]; then
- eval "$_eval"
+ eval "$_eval" | {
+ while read line
+ do
+ echo "$line &&"
+ done
+ echo ':'
+ }
return
fi
# Let's parse the output of:
# "git rev-list --bisect-vars --bisect-all ..."
- eval "$_eval" | while read hash line
- do
- case "$VARS,$FOUND,$TRIED,$hash" in
- # We display some vars.
- 1,*,*,*) echo "$hash $line" ;;
-
- # Split line.
- ,*,*,---*) ;;
-
- # We had nothing to search.
+ eval "$_eval" | {
+ VARS= FOUND= TRIED=
+ while read hash line
+ do
+ case "$VARS,$FOUND,$TRIED,$hash" in
+ 1,*,*,*)
+ # "bisect_foo=bar" read from rev-list output.
+ echo "$hash &&"
+ ;;
+ ,*,*,---*)
+ # Separator
+ ;;
,,,bisect_rev*)
- echo "bisect_rev="
+ # We had nothing to search.
+ echo "bisect_rev= &&"
VARS=1
;;
-
- # We did not find a good bisect rev.
- # This should happen only if the "bad"
- # commit is also a "skip" commit.
,,*,bisect_rev*)
- echo "bisect_rev=$TRIED"
+ # We did not find a good bisect rev.
+ # This should happen only if the "bad"
+ # commit is also a "skip" commit.
+ echo "bisect_rev='$TRIED' &&"
VARS=1
;;
-
- # We are searching.
,,*,*)
+ # We are searching.
TRIED="${TRIED:+$TRIED|}$hash"
case "$_skip" in
*$hash*) ;;
*)
- echo "bisect_rev=$hash"
- echo "bisect_tried=\"$TRIED\""
+ echo "bisect_rev=$hash &&"
+ echo "bisect_tried='$TRIED' &&"
FOUND=1
;;
esac
;;
-
- # We have already found a rev to be tested.
- ,1,*,bisect_rev*) VARS=1 ;;
- ,1,*,*) ;;
-
- # ???
- *) die "filter_skipped error " \
- "VARS: '$VARS' " \
- "FOUND: '$FOUND' " \
- "TRIED: '$TRIED' " \
- "hash: '$hash' " \
- "line: '$line'"
- ;;
- esac
- done
+ ,1,*,bisect_rev*)
+ # We have already found a rev to be tested.
+ VARS=1
+ ;;
+ ,1,*,*)
+ ;;
+ *)
+ # Unexpected input
+ echo "die 'filter_skipped error'"
+ die "filter_skipped error " \
+ "VARS: '$VARS' " \
+ "FOUND: '$FOUND' " \
+ "TRIED: '$TRIED' " \
+ "hash: '$hash' " \
+ "line: '$line'"
+ ;;
+ esac
+ done
+ echo ':'
+ }
}
exit_if_skipped_commits () {
EOF
}
+#
+# "check_merge_bases" checks that merge bases are not "bad".
+#
+# - If one is "good", that's good, we have nothing to do.
+# - If one is "bad", it means the user assumed something wrong
+# and we must exit.
+# - If one is "skipped", we can't know but we should warn.
+# - If we don't know, we should check it out and ask the user to test.
+#
+# In the last case we will return 1, and otherwise 0.
+#
check_merge_bases() {
_bad="$1"
_good="$2"
handle_skipped_merge_base "$_mb" "$_bad" "$_good"
else
bisect_checkout "$_mb" "a merge base must be tested"
- checkout_done=1
- return
+ return 1
fi
done
+ return 0
}
+#
+# "check_good_are_ancestors_of_bad" checks that all "good" revs are
+# ancestor of the "bad" rev.
+#
+# If that's not the case, we need to check the merge bases.
+# If a merge base must be tested by the user we return 1 and
+# otherwise 0.
+#
check_good_are_ancestors_of_bad() {
test -f "$GIT_DIR/BISECT_ANCESTORS_OK" &&
return
_side=$(git rev-list $_good ^$_bad)
if test -n "$_side"; then
+ # Return if a checkout was done
check_merge_bases "$_bad" "$_good" "$_skip" || return
- test "$checkout_done" -eq "1" && return
fi
: > "$GIT_DIR/BISECT_ANCESTORS_OK"
+
+ return 0
}
bisect_next() {
good=$(git for-each-ref --format='^%(objectname)' \
"refs/bisect/good-*" | tr '\012' ' ') &&
skip=$(git for-each-ref --format='%(objectname)' \
- "refs/bisect/skip-*" | tr '\012' ' ') &&
+ "refs/bisect/skip-*" | tr '\012' ' ') || exit
# Maybe some merge bases must be tested first
- check_good_are_ancestors_of_bad "$bad" "$good" "$skip" || exit
- test "$checkout_done" -eq "1" && checkout_done='' && return
+ check_good_are_ancestors_of_bad "$bad" "$good" "$skip"
+ # Return now if a checkout has already been done
+ test "$?" -eq "1" && return
# Get bisection information
BISECT_OPT=''
if test $# = 0
then
- case "${DISPLAY+set}${MSYSTEM+set}${SECURITYSESSIONID+set}" in
+ case "${DISPLAY+set}${SESSIONNAME+set}${MSYSTEM+set}${SECURITYSESSIONID+set}" in
'') set git log ;;
set*) set gitk ;;
esac
git bisect -h ;;
start)
bisect_start "$@" ;;
- bad|good|skip)
+ bad|good)
bisect_state "$cmd" "$@" ;;
+ skip)
+ bisect_skip "$@" ;;
next)
# Not sure we want "next" at the UI level anymore.
bisect_next "$@" ;;