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authorChristian Couder <chriscool@tuxfamily.org>2009-05-09 17:55:47 +0200
committerJunio C Hamano <gitster@pobox.com>2009-05-10 14:30:33 -0700
commit0871984d304c9201b85897743eae583cd165106d (patch)
tree17a53776230bbb2b4d47c3ce7444fe403821fddf /git-bisect.sh
parentd937d4aca1f10b9202b620a89dc6a5972e9605eb (diff)
downloadgit-0871984d304c9201b85897743eae583cd165106d.tar.gz
bisect: make "git bisect" use new "--next-all" bisect-helper function
This patch replace the "--next-exit" option of "git bisect--helper" with a "--next-all" option that does merge base checking using the "check_good_are_ancestors_of_bad" function implemented in "bisect.c" in a former patch. The new "--next-all" option is then used in "git-bisect.sh" instead of the "--next-exit" option, and all the shell functions in "git-bisect.sh" that are now unused are removed. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-bisect.sh')
-rwxr-xr-xgit-bisect.sh127
1 files changed, 2 insertions, 125 deletions
diff --git a/git-bisect.sh b/git-bisect.sh
index 786b7b9110..8969553658 100755
--- a/git-bisect.sh
+++ b/git-bisect.sh
@@ -167,10 +167,6 @@ is_expected_rev() {
test "$1" = $(cat "$GIT_DIR/BISECT_EXPECTED_REV")
}
-mark_expected_rev() {
- echo "$1" > "$GIT_DIR/BISECT_EXPECTED_REV"
-}
-
check_expected_revs() {
for _rev in "$@"; do
if ! is_expected_rev "$_rev"; then
@@ -269,132 +265,13 @@ bisect_auto_next() {
bisect_next_check && bisect_next || :
}
-bisect_checkout() {
- _rev="$1"
- _msg="$2"
- echo "Bisecting: $_msg"
- mark_expected_rev "$_rev"
- git checkout -q "$_rev" -- || exit
- git show-branch "$_rev"
-}
-
-is_among() {
- _rev="$1"
- _list="$2"
- case "$_list" in *$_rev*) return 0 ;; esac
- return 1
-}
-
-handle_bad_merge_base() {
- _badmb="$1"
- _good="$2"
- if is_expected_rev "$_badmb"; then
- cat >&2 <<EOF
-The merge base $_badmb is bad.
-This means the bug has been fixed between $_badmb and [$_good].
-EOF
- exit 3
- else
- cat >&2 <<EOF
-Some good revs are not ancestor of the bad rev.
-git bisect cannot work properly in this case.
-Maybe you mistake good and bad revs?
-EOF
- exit 1
- fi
-}
-
-handle_skipped_merge_base() {
- _mb="$1"
- _bad="$2"
- _good="$3"
- cat >&2 <<EOF
-Warning: the merge base between $_bad and [$_good] must be skipped.
-So we cannot be sure the first bad commit is between $_mb and $_bad.
-We continue anyway.
-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"
- _skip="$3"
- for _mb in $(git merge-base --all $_bad $_good)
- do
- if is_among "$_mb" "$_good"; then
- continue
- elif test "$_mb" = "$_bad"; then
- handle_bad_merge_base "$_bad" "$_good"
- elif is_among "$_mb" "$_skip"; then
- handle_skipped_merge_base "$_mb" "$_bad" "$_good"
- else
- bisect_checkout "$_mb" "a merge base must be tested"
- return 1
- fi
- done
- return 0
-}
-
-#
-# "check_good_are_ancestors_of_bad" checks that all "good" revs are
-# ancestor of the "bad" rev.
-#
-# If that's not the case, we need to check the merge bases.
-# If a merge base must be tested by the user we return 1 and
-# otherwise 0.
-#
-check_good_are_ancestors_of_bad() {
- test -f "$GIT_DIR/BISECT_ANCESTORS_OK" &&
- return
-
- _bad="$1"
- _good=$(echo $2 | sed -e 's/\^//g')
- _skip="$3"
-
- # Bisecting with no good rev is ok
- test -z "$_good" && 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
- fi
-
- : > "$GIT_DIR/BISECT_ANCESTORS_OK"
-
- return 0
-}
-
bisect_next() {
case "$#" in 0) ;; *) usage ;; esac
bisect_autostart
bisect_next_check good
- # Get bad, good and skipped revs
- bad=$(git rev-parse --verify refs/bisect/bad) &&
- good=$(git for-each-ref --format='^%(objectname)' \
- "refs/bisect/good-*" | tr '\012' ' ') &&
- skip=$(git for-each-ref --format='%(objectname)' \
- "refs/bisect/skip-*" | tr '\012' ' ') || exit
-
- # Maybe some merge bases must be tested first
- check_good_are_ancestors_of_bad "$bad" "$good" "$skip"
- # Return now if a checkout has already been done
- test "$?" -eq "1" && return
-
- # Perform bisection computation, display and checkout
- git bisect--helper --next-exit
+ # Perform all bisection computation, display and checkout
+ git bisect--helper --next-all
res=$?
# Check if we should exit because bisection is finished