diff options
Diffstat (limited to 'git-rebase--interactive.sh')
| -rwxr-xr-x | git-rebase--interactive.sh | 162 |
1 files changed, 122 insertions, 40 deletions
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh index 59c148f..1ceb57a 100755 --- a/git-rebase--interactive.sh +++ b/git-rebase--interactive.sh @@ -26,6 +26,7 @@ i,interactive always used (no-op) continue continue rebasing process abort abort rebasing process and restore original branch skip skip current patch and continue rebasing process +no-verify override pre-rebase hook from stopping the operation " . git-sh-setup @@ -37,10 +38,12 @@ DONE="$DOTEST"/done MSG="$DOTEST"/message SQUASH_MSG="$DOTEST"/message-squash REWRITTEN="$DOTEST"/rewritten +DROPPED="$DOTEST"/dropped PRESERVE_MERGES= STRATEGY= ONTO= VERBOSE= +OK_TO_SKIP_PRE_REBASE= GIT_CHERRY_PICK_HELP=" After resolving the conflicts, mark the corrected paths with 'git add <paths>', and @@ -66,7 +69,8 @@ output () { } run_pre_rebase_hook () { - if test -x "$GIT_DIR/hooks/pre-rebase" + if test -z "$OK_TO_SKIP_PRE_REBASE" && + test -x "$GIT_DIR/hooks/pre-rebase" then "$GIT_DIR/hooks/pre-rebase" ${1+"$@"} || { echo >&2 "The pre-rebase hook refused to rebase." @@ -111,9 +115,18 @@ mark_action_done () { } make_patch () { - parent_sha1=$(git rev-parse --verify "$1"^) || - die "Cannot get patch for $1^" - git diff-tree -p "$parent_sha1".."$1" > "$DOTEST"/patch + sha1_and_parents="$(git rev-list --parents -1 "$1")" + case "$sha1_and_parents" in + ?*' '?*' '?*) + git diff --cc $sha1_and_parents + ;; + ?*' '?*) + git diff-tree -p "$1^!" + ;; + *) + echo "Root commit" + ;; + esac > "$DOTEST"/patch test -f "$DOTEST"/message || git cat-file commit "$1" | sed "1,/^$/d" > "$DOTEST"/message test -f "$DOTEST"/author-script || @@ -169,21 +182,39 @@ pick_one_preserving_merges () { if test -f "$DOTEST"/current-commit then - current_commit=$(cat "$DOTEST"/current-commit) && - git rev-parse HEAD > "$REWRITTEN"/$current_commit && - rm "$DOTEST"/current-commit || - die "Cannot write current commit's replacement sha1" + if test "$fast_forward" = t + then + cat "$DOTEST"/current-commit | while read current_commit + do + git rev-parse HEAD > "$REWRITTEN"/$current_commit + done + rm "$DOTEST"/current-commit || + die "Cannot write current commit's replacement sha1" + fi fi - echo $sha1 > "$DOTEST"/current-commit + echo $sha1 >> "$DOTEST"/current-commit # rewrite parents; if none were rewritten, we can fast-forward. new_parents= - for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -f2-) + pend=" $(git rev-list --parents -1 $sha1 | cut -d' ' -f2-)" + while [ "$pend" != "" ] do + p=$(expr "$pend" : ' \([^ ]*\)') + pend="${pend# $p}" + if test -f "$REWRITTEN"/$p then new_p=$(cat "$REWRITTEN"/$p) + + # If the todo reordered commits, and our parent is marked for + # rewriting, but hasn't been gotten to yet, assume the user meant to + # drop it on top of the current HEAD + if test -z "$new_p" + then + new_p=$(git rev-parse HEAD) + fi + test $p != $new_p && fast_forward=f case "$new_parents" in *$new_p*) @@ -193,7 +224,13 @@ pick_one_preserving_merges () { ;; esac else - new_parents="$new_parents $p" + if test -f "$DROPPED"/$p + then + fast_forward=f + pend=" $(cat "$DROPPED"/$p)$pend" + else + new_parents="$new_parents $p" + fi fi done case $fast_forward in @@ -203,15 +240,19 @@ pick_one_preserving_merges () { die "Cannot fast forward to $sha1" ;; f) - test "a$1" = a-n && die "Refusing to squash a merge: $sha1" - first_parent=$(expr "$new_parents" : ' \([^ ]*\)') - # detach HEAD to current parent - output git checkout $first_parent 2> /dev/null || - die "Cannot move HEAD to $first_parent" + + if [ "$1" != "-n" ] + then + # detach HEAD to current parent + output git checkout $first_parent 2> /dev/null || + die "Cannot move HEAD to $first_parent" + fi case "$new_parents" in ' '*' '*) + test "a$1" = a-n && die "Refusing to squash a merge: $sha1" + # redo merge author_script=$(get_author_ident_from_commit $sha1) eval "$author_script" @@ -224,9 +265,8 @@ pick_one_preserving_merges () { output git merge $STRATEGY -m "$msg" \ $new_parents then - git rerere printf "%s\n" "$msg" > "$GIT_DIR"/MERGE_MSG - die Error redoing merge $sha1 + die_with_patch $sha1 "Error redoing merge $sha1" fi ;; *) @@ -320,17 +360,15 @@ do_next () { pick_one -n $sha1 || failed=t case "$(peek_next_command)" in squash|s) - EDIT_COMMIT= USE_OUTPUT=output MSG_OPT=-F - MSG_FILE="$MSG" + EDIT_OR_FILE="$MSG" cp "$MSG" "$SQUASH_MSG" ;; *) - EDIT_COMMIT=-e USE_OUTPUT= MSG_OPT= - MSG_FILE= + EDIT_OR_FILE=-e rm -f "$SQUASH_MSG" || exit cp "$MSG" "$GIT_DIR"/SQUASH_MSG rm -f "$GIT_DIR"/MERGE_MSG || exit @@ -344,7 +382,8 @@ do_next () { GIT_AUTHOR_NAME="$GIT_AUTHOR_NAME" \ GIT_AUTHOR_EMAIL="$GIT_AUTHOR_EMAIL" \ GIT_AUTHOR_DATE="$GIT_AUTHOR_DATE" \ - $USE_OUTPUT git commit --no-verify $MSG_OPT "$MSG_FILE" $EDIT_COMMIT || failed=t + $USE_OUTPUT git commit --no-verify \ + $MSG_OPT "$EDIT_OR_FILE" || failed=t fi if test $failed = t then @@ -365,20 +404,7 @@ do_next () { HEADNAME=$(cat "$DOTEST"/head-name) && OLDHEAD=$(cat "$DOTEST"/head) && SHORTONTO=$(git rev-parse --short $(cat "$DOTEST"/onto)) && - if test -d "$REWRITTEN" - then - test -f "$DOTEST"/current-commit && - current_commit=$(cat "$DOTEST"/current-commit) && - git rev-parse HEAD > "$REWRITTEN"/$current_commit - if test -f "$REWRITTEN"/$OLDHEAD - then - NEWHEAD=$(cat "$REWRITTEN"/$OLDHEAD) - else - NEWHEAD=$OLDHEAD - fi - else - NEWHEAD=$(git rev-parse HEAD) - fi && + NEWHEAD=$(git rev-parse HEAD) && case $HEADNAME in refs/*) message="$GIT_REFLOG_ACTION: $HEADNAME onto $SHORTONTO)" && @@ -421,6 +447,11 @@ get_saved_options () { while test $# != 0 do case "$1" in + --no-verify) + OK_TO_SKIP_PRE_REBASE=yes + ;; + --verify) + ;; --continue) is_standalone "$@" || usage get_saved_options @@ -572,18 +603,69 @@ first and then run 'git rebase --continue' again." echo $ONTO > "$REWRITTEN"/$c || die "Could not init rewritten commits" done + # No cherry-pick because our first pass is to determine + # parents to rewrite and skipping dropped commits would + # prematurely end our probe MERGES_OPTION= + first_after_upstream="$(git rev-list --reverse --first-parent $UPSTREAM..$HEAD | head -n 1)" else - MERGES_OPTION=--no-merges + MERGES_OPTION="--no-merges --cherry-pick" fi SHORTUPSTREAM=$(git rev-parse --short $UPSTREAM) SHORTHEAD=$(git rev-parse --short $HEAD) SHORTONTO=$(git rev-parse --short $ONTO) git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \ - --abbrev=7 --reverse --left-right --cherry-pick \ + --abbrev=7 --reverse --left-right --topo-order \ $UPSTREAM...$HEAD | \ - sed -n "s/^>/pick /p" > "$TODO" + sed -n "s/^>//p" | while read shortsha1 rest + do + if test t != "$PRESERVE_MERGES" + then + echo "pick $shortsha1 $rest" >> "$TODO" + else + sha1=$(git rev-parse $shortsha1) + preserve=t + for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -f2-) + do + if test -f "$REWRITTEN"/$p -a \( $p != $UPSTREAM -o $sha1 = $first_after_upstream \) + then + preserve=f + fi + done + if test f = "$preserve" + then + touch "$REWRITTEN"/$sha1 + echo "pick $shortsha1 $rest" >> "$TODO" + fi + fi + done + + # Watch for commits that been dropped by --cherry-pick + if test t = "$PRESERVE_MERGES" + then + mkdir "$DROPPED" + # Save all non-cherry-picked changes + git rev-list $UPSTREAM...$HEAD --left-right --cherry-pick | \ + sed -n "s/^>//p" > "$DOTEST"/not-cherry-picks + # Now all commits and note which ones are missing in + # not-cherry-picks and hence being dropped + git rev-list $UPSTREAM..$HEAD | + while read rev + do + if test -f "$REWRITTEN"/$rev -a "$(grep "$rev" "$DOTEST"/not-cherry-picks)" = "" + then + # Use -f2 because if rev-list is telling us this commit is + # not worthwhile, we don't want to track its multiple heads, + # just the history of its first-parent for others that will + # be rebasing on top of it + git rev-list --parents -1 $rev | cut -d' ' -f2 > "$DROPPED"/$rev + short=$(git rev-list -1 --abbrev-commit --abbrev=7 $rev) + grep -v "^[a-z][a-z]* $short" <"$TODO" > "${TODO}2" ; mv "${TODO}2" "$TODO" + rm "$REWRITTEN"/$rev + fi + done + fi test -s "$TODO" || echo noop >> "$TODO" cat >> "$TODO" << EOF |