t6023: merge-file fails to output anything for a degenerate merge
[gitweb.git] / git-bisect.sh
index 6c6c3de54a890cc4ba9927c6e8159c862cb231c4..b95dbbbbb243069f5e673869b3867cfa4151aff7 100755 (executable)
@@ -149,7 +149,7 @@ bisect_start() {
        echo "$start_head" >"$GIT_DIR/BISECT_START" &&
        sq "$@" >"$GIT_DIR/BISECT_NAMES" &&
        eval "$eval" &&
-       echo "git-bisect start$orig_args" >>"$GIT_DIR/BISECT_LOG" || exit
+       echo "git bisect start$orig_args" >>"$GIT_DIR/BISECT_LOG" || exit
        #
        # Check if we can proceed to the next bisect state.
        #
@@ -169,7 +169,7 @@ bisect_write() {
        esac
        git update-ref "refs/bisect/$tag" "$rev" || exit
        echo "# $state: $(git show-branch $rev)" >>"$GIT_DIR/BISECT_LOG"
-       test -n "$nolog" || echo "git-bisect $state $rev" >>"$GIT_DIR/BISECT_LOG"
+       test -n "$nolog" || echo "git bisect $state $rev" >>"$GIT_DIR/BISECT_LOG"
 }
 
 bisect_state() {
@@ -263,62 +263,74 @@ filter_skipped() {
        _skip="$2"
 
        if [ -z "$_skip" ]; then
-               eval_rev_list "$_eval"
+               eval_rev_list "$_eval" | {
+                       while read line
+                       do
+                               echo "$line &&"
+                       done
+                       echo ':'
+               }
                return
        fi
 
        # Let's parse the output of:
        # "git rev-list --bisect-vars --bisect-all ..."
-       eval_rev_list "$_eval" | while read hash line
-       do
-               case "$VARS,$FOUND,$TRIED,$hash" in
-                       # We display some vars.
-                       1,*,*,*) echo "$hash $line" ;;
-
-                       # Split line.
-                       ,*,*,---*) ;;
-
-                       # We had nothing to search.
+       eval_rev_list "$_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 () {
@@ -427,9 +439,13 @@ bisect_clean_state() {
 bisect_replay () {
        test -r "$1" || die "cannot read $1 for replaying"
        bisect_reset
-       while read bisect command rev
+       while read git bisect command rev
        do
-               test "$bisect" = "git-bisect" || continue
+               test "$git $bisect" = "git bisect" -o "$git" = "git-bisect" || continue
+               if test "$git" = "git-bisect"; then
+                       rev="$command"
+                       command="$bisect"
+               fi
                case "$command" in
                start)
                        cmd="bisect_start $rev"