diff options
Diffstat (limited to 'git-rebase--interactive.sh')
| -rw-r--r--[-rwxr-xr-x] | git-rebase--interactive.sh | 822 |
1 files changed, 321 insertions, 501 deletions
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh index a27952d9fd..94f36c254c 100755..100644 --- a/git-rebase--interactive.sh +++ b/git-rebase--interactive.sh @@ -10,47 +10,22 @@ # The original idea comes from Eric W. Biederman, in # http://article.gmane.org/gmane.comp.version-control.git/22407 -OPTIONS_KEEPDASHDASH= -OPTIONS_SPEC="\ -git-rebase [-i] [options] [--] <upstream> [<branch>] -git-rebase [-i] (--continue | --abort | --skip) --- - Available options are -v,verbose display a diffstat of what changed upstream -onto= rebase onto given branch instead of upstream -p,preserve-merges try to recreate merges instead of ignoring them -s,strategy= use the given merge strategy -no-ff cherry-pick all commits, even if unchanged -m,merge always used (no-op) -i,interactive always used (no-op) - Actions: -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 -root rebase all reachable commmits up to the root(s) -autosquash move commits that begin with squash!/fixup! under -i -" - . git-sh-setup -require_work_tree - -DOTEST="$GIT_DIR/rebase-merge" # The file containing rebase commands, comments, and empty lines. # This file is created by "git rebase -i" then edited by the user. As # the lines are processed, they are removed from the front of this -# file and written to the tail of $DONE. -TODO="$DOTEST"/git-rebase-todo +# file and written to the tail of $done. +todo="$state_dir"/git-rebase-todo # The rebase command lines that have already been processed. A line # is moved here when it is first handled, before any associated user # actions. -DONE="$DOTEST"/done +done="$state_dir"/done # The commit message that is planned to be used for any changes that # need to be committed following a user interaction. -MSG="$DOTEST"/message +msg="$state_dir"/message # The file into which is accumulated the suggested commit message for # squash/fixup commands. When the first of a series of squash/fixups @@ -60,34 +35,34 @@ MSG="$DOTEST"/message # is appended to the file as it is processed. # # The first line of the file is of the form -# # This is a combination of $COUNT commits. -# where $COUNT is the number of commits whose messages have been +# # This is a combination of $count commits. +# where $count is the number of commits whose messages have been # written to the file so far (including the initial "pick" commit). # Each time that a commit message is processed, this line is read and # updated. It is deleted just before the combined commit is made. -SQUASH_MSG="$DOTEST"/message-squash +squash_msg="$state_dir"/message-squash # If the current series of squash/fixups has not yet included a squash # command, then this file exists and holds the commit message of the # original "pick" commit. (If the series ends without a "squash" # command, then this can be used as the commit message of the combined # commit without opening the editor.) -FIXUP_MSG="$DOTEST"/message-fixup +fixup_msg="$state_dir"/message-fixup -# $REWRITTEN is the name of a directory containing files for each -# commit that is reachable by at least one merge base of $HEAD and -# $UPSTREAM. They are not necessarily rewritten, but their children +# $rewritten is the name of a directory containing files for each +# commit that is reachable by at least one merge base of $head and +# $upstream. They are not necessarily rewritten, but their children # might be. This ensures that commits on merged, but otherwise # unrelated side branches are left alone. (Think "X" in the man page's # example.) -REWRITTEN="$DOTEST"/rewritten +rewritten="$state_dir"/rewritten -DROPPED="$DOTEST"/dropped +dropped="$state_dir"/dropped # A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and # GIT_AUTHOR_DATE that will be used for the commit that is currently # being rebased. -AUTHOR_SCRIPT="$DOTEST"/author-script +author_script="$state_dir"/author-script # When an "edit" rebase command is being processed, the SHA1 of the # commit to be edited is recorded in this file. When "git rebase @@ -95,77 +70,31 @@ AUTHOR_SCRIPT="$DOTEST"/author-script # will be amended to the HEAD commit, but only provided the HEAD # commit is still the commit to be edited. When any other rebase # command is processed, this file is deleted. -AMEND="$DOTEST"/amend +amend="$state_dir"/amend # For the post-rewrite hook, we make a list of rewritten commits and # their new sha1s. The rewritten-pending list keeps the sha1s of # commits that have been processed, but not committed yet, # e.g. because they are waiting for a 'squash' command. -REWRITTEN_LIST="$DOTEST"/rewritten-list -REWRITTEN_PENDING="$DOTEST"/rewritten-pending - -PRESERVE_MERGES= -STRATEGY= -ONTO= -VERBOSE= -OK_TO_SKIP_PRE_REBASE= -REBASE_ROOT= -AUTOSQUASH= -test "$(git config --bool rebase.autosquash)" = "true" && AUTOSQUASH=t -NEVER_FF= - -GIT_CHERRY_PICK_HELP="\ -hint: after resolving the conflicts, mark the corrected paths -hint: with 'git add <paths>' and run 'git rebase --continue'" +rewritten_list="$state_dir"/rewritten-list +rewritten_pending="$state_dir"/rewritten-pending + +GIT_CHERRY_PICK_HELP="$resolvemsg" export GIT_CHERRY_PICK_HELP warn () { printf '%s\n' "$*" >&2 } -output () { - case "$VERBOSE" in - '') - output=$("$@" 2>&1 ) - status=$? - test $status != 0 && printf "%s\n" "$output" - return $status - ;; - *) - "$@" - ;; - esac -} - # Output the commit message for the specified commit. commit_message () { git cat-file commit "$1" | sed "1,/^$/d" } -run_pre_rebase_hook () { - 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." - exit 1 - } - fi -} - -require_clean_work_tree () { - # test if working tree is dirty - git rev-parse --verify HEAD > /dev/null && - git update-index --ignore-submodules --refresh && - git diff-files --quiet --ignore-submodules && - git diff-index --cached --quiet HEAD --ignore-submodules -- || - die "Working tree is dirty" -} - -ORIG_REFLOG_ACTION="$GIT_REFLOG_ACTION" +orig_reflog_action="$GIT_REFLOG_ACTION" comment_for_reflog () { - case "$ORIG_REFLOG_ACTION" in + case "$orig_reflog_action" in ''|rebase*) GIT_REFLOG_ACTION="rebase -i ($1)" export GIT_REFLOG_ACTION @@ -175,16 +104,16 @@ comment_for_reflog () { last_count= mark_action_done () { - sed -e 1q < "$TODO" >> "$DONE" - sed -e 1d < "$TODO" >> "$TODO".new - mv -f "$TODO".new "$TODO" - count=$(sane_grep -c '^[^#]' < "$DONE") - total=$(($count+$(sane_grep -c '^[^#]' < "$TODO"))) - if test "$last_count" != "$count" + sed -e 1q < "$todo" >> "$done" + sed -e 1d < "$todo" >> "$todo".new + mv -f "$todo".new "$todo" + new_count=$(sane_grep -c '^[^#]' < "$done") + total=$(($new_count+$(sane_grep -c '^[^#]' < "$todo"))) + if test "$last_count" != "$new_count" then - last_count=$count - printf "Rebasing (%d/%d)\r" $count $total - test -z "$VERBOSE" || echo + last_count=$new_count + printf "Rebasing (%d/%d)\r" $new_count $total + test -z "$verbose" || echo fi } @@ -200,22 +129,22 @@ make_patch () { *) echo "Root commit" ;; - esac > "$DOTEST"/patch - test -f "$MSG" || - commit_message "$1" > "$MSG" - test -f "$AUTHOR_SCRIPT" || - get_author_ident_from_commit "$1" > "$AUTHOR_SCRIPT" + esac > "$state_dir"/patch + test -f "$msg" || + commit_message "$1" > "$msg" + test -f "$author_script" || + get_author_ident_from_commit "$1" > "$author_script" } die_with_patch () { - echo "$1" > "$DOTEST"/stopped-sha + echo "$1" > "$state_dir"/stopped-sha make_patch "$1" git rerere die "$2" } die_abort () { - rm -rf "$DOTEST" + rm -rf "$state_dir" die "$1" } @@ -235,15 +164,10 @@ do_with_author () { pick_one () { ff=--ff case "$1" in -n) sha1=$2; ff= ;; *) sha1=$1 ;; esac - case "$NEVER_FF" in '') ;; ?*) ff= ;; esac + case "$force_rebase" in '') ;; ?*) ff= ;; esac output git rev-parse --verify $sha1 || die "Invalid commit name: $sha1" - test -d "$REWRITTEN" && + test -d "$rewritten" && pick_one_preserving_merges "$@" && return - if test -n "$REBASE_ROOT" - then - output git cherry-pick "$@" - return - fi output git cherry-pick $ff "$@" } @@ -260,20 +184,20 @@ pick_one_preserving_merges () { esac sha1=$(git rev-parse $sha1) - if test -f "$DOTEST"/current-commit + if test -f "$state_dir"/current-commit then if test "$fast_forward" = t then while read current_commit do - git rev-parse HEAD > "$REWRITTEN"/$current_commit - done <"$DOTEST"/current-commit - rm "$DOTEST"/current-commit || + git rev-parse HEAD > "$rewritten"/$current_commit + done <"$state_dir"/current-commit + rm "$state_dir"/current-commit || die "Cannot write current commit's replacement sha1" fi fi - echo $sha1 >> "$DOTEST"/current-commit + echo $sha1 >> "$state_dir"/current-commit # rewrite parents; if none were rewritten, we can fast-forward. new_parents= @@ -287,9 +211,9 @@ pick_one_preserving_merges () { p=$(expr "$pend" : ' \([^ ]*\)') pend="${pend# $p}" - if test -f "$REWRITTEN"/$p + if test -f "$rewritten"/$p then - new_p=$(cat "$REWRITTEN"/$p) + new_p=$(cat "$rewritten"/$p) # If the todo reordered commits, and our parent is marked for # rewriting, but hasn't been gotten to yet, assume the user meant to @@ -308,10 +232,10 @@ pick_one_preserving_merges () { ;; esac else - if test -f "$DROPPED"/$p + if test -f "$dropped"/$p then fast_forward=f - replacement="$(cat "$DROPPED"/$p)" + replacement="$(cat "$dropped"/$p)" test -z "$replacement" && replacement=root pend=" $replacement$pend" else @@ -340,18 +264,19 @@ pick_one_preserving_merges () { 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" - msg="$(commit_message $sha1)" + author_script_content=$(get_author_ident_from_commit $sha1) + eval "$author_script_content" + msg_content="$(commit_message $sha1)" # No point in merging the first parent, that's HEAD new_parents=${new_parents# $first_parent} if ! do_with_author output \ - git merge $STRATEGY -m "$msg" $new_parents + git merge --no-ff ${strategy:+-s $strategy} -m \ + "$msg_content" $new_parents then - printf "%s\n" "$msg" > "$GIT_DIR"/MERGE_MSG + printf "%s\n" "$msg_content" > "$GIT_DIR"/MERGE_MSG die_with_patch $sha1 "Error redoing merge $sha1" fi - echo "$sha1 $(git rev-parse HEAD^0)" >> "$REWRITTEN_LIST" + echo "$sha1 $(git rev-parse HEAD^0)" >> "$rewritten_list" ;; *) output git cherry-pick "$@" || @@ -372,46 +297,46 @@ nth_string () { } update_squash_messages () { - if test -f "$SQUASH_MSG"; then - mv "$SQUASH_MSG" "$SQUASH_MSG".bak || exit - COUNT=$(($(sed -n \ + if test -f "$squash_msg"; then + mv "$squash_msg" "$squash_msg".bak || exit + count=$(($(sed -n \ -e "1s/^# This is a combination of \(.*\) commits\./\1/p" \ - -e "q" < "$SQUASH_MSG".bak)+1)) + -e "q" < "$squash_msg".bak)+1)) { - echo "# This is a combination of $COUNT commits." + echo "# This is a combination of $count commits." sed -e 1d -e '2,/^./{ /^$/d - }' <"$SQUASH_MSG".bak - } >"$SQUASH_MSG" + }' <"$squash_msg".bak + } >"$squash_msg" else - commit_message HEAD > "$FIXUP_MSG" || die "Cannot write $FIXUP_MSG" - COUNT=2 + commit_message HEAD > "$fixup_msg" || die "Cannot write $fixup_msg" + count=2 { echo "# This is a combination of 2 commits." echo "# The first commit's message is:" echo - cat "$FIXUP_MSG" - } >"$SQUASH_MSG" + cat "$fixup_msg" + } >"$squash_msg" fi case $1 in squash) - rm -f "$FIXUP_MSG" + rm -f "$fixup_msg" echo - echo "# This is the $(nth_string $COUNT) commit message:" + echo "# This is the $(nth_string $count) commit message:" echo commit_message $2 ;; fixup) echo - echo "# The $(nth_string $COUNT) commit message will be skipped:" + echo "# The $(nth_string $count) commit message will be skipped:" echo commit_message $2 | sed -e 's/^/# /' ;; - esac >>"$SQUASH_MSG" + esac >>"$squash_msg" } peek_next_command () { - sed -n -e "/^#/d" -e '/^$/d' -e "s/ .*//p" -e "q" < "$TODO" + sed -n -e "/^#/d" -e '/^$/d' -e "s/ .*//p" -e "q" < "$todo" } # A squash/fixup has failed. Prepare the long version of the squash @@ -421,24 +346,24 @@ peek_next_command () { # messages, effectively causing the combined commit to be used as the # new basis for any further squash/fixups. Args: sha1 rest die_failed_squash() { - mv "$SQUASH_MSG" "$MSG" || exit - rm -f "$FIXUP_MSG" - cp "$MSG" "$GIT_DIR"/MERGE_MSG || exit + mv "$squash_msg" "$msg" || exit + rm -f "$fixup_msg" + cp "$msg" "$GIT_DIR"/MERGE_MSG || exit warn warn "Could not apply $1... $2" die_with_patch $1 "" } flush_rewritten_pending() { - test -s "$REWRITTEN_PENDING" || return + test -s "$rewritten_pending" || return newsha1="$(git rev-parse HEAD^0)" - sed "s/$/ $newsha1/" < "$REWRITTEN_PENDING" >> "$REWRITTEN_LIST" - rm -f "$REWRITTEN_PENDING" + sed "s/$/ $newsha1/" < "$rewritten_pending" >> "$rewritten_list" + rm -f "$rewritten_pending" } record_in_rewritten() { oldsha1="$(git rev-parse $1)" - echo "$oldsha1" >> "$REWRITTEN_PENDING" + echo "$oldsha1" >> "$rewritten_pending" case "$(peek_next_command)" in squash|s|fixup|f) @@ -450,8 +375,8 @@ record_in_rewritten() { } do_next () { - rm -f "$MSG" "$AUTHOR_SCRIPT" "$AMEND" || exit - read -r command sha1 rest < "$TODO" + rm -f "$msg" "$author_script" "$amend" || exit + read -r command sha1 rest < "$todo" case "$command" in '#'*|''|noop) mark_action_done @@ -479,9 +404,9 @@ do_next () { mark_action_done pick_one $sha1 || die_with_patch $sha1 "Could not apply $sha1... $rest" - echo "$sha1" > "$DOTEST"/stopped-sha + echo "$sha1" > "$state_dir"/stopped-sha make_patch $sha1 - git rev-parse --verify HEAD > "$AMEND" + git rev-parse --verify HEAD > "$amend" warn "Stopped at $sha1... $rest" warn "You can amend the commit now, with" warn @@ -504,61 +429,67 @@ do_next () { esac comment_for_reflog $squash_style - test -f "$DONE" && has_action "$DONE" || + test -f "$done" && has_action "$done" || die "Cannot '$squash_style' without a previous commit" mark_action_done update_squash_messages $squash_style $sha1 - author_script=$(get_author_ident_from_commit HEAD) - echo "$author_script" > "$AUTHOR_SCRIPT" - eval "$author_script" + author_script_content=$(get_author_ident_from_commit HEAD) + echo "$author_script_content" > "$author_script" + eval "$author_script_content" output git reset --soft HEAD^ pick_one -n $sha1 || die_failed_squash $sha1 "$rest" case "$(peek_next_command)" in squash|s|fixup|f) # This is an intermediate commit; its message will only be # used in case of trouble. So use the long version: - do_with_author output git commit --no-verify -F "$SQUASH_MSG" || + do_with_author output git commit --no-verify -F "$squash_msg" || die_failed_squash $sha1 "$rest" ;; *) # This is the final command of this squash/fixup group - if test -f "$FIXUP_MSG" + if test -f "$fixup_msg" then - do_with_author git commit --no-verify -F "$FIXUP_MSG" || + do_with_author git commit --no-verify -F "$fixup_msg" || die_failed_squash $sha1 "$rest" else - cp "$SQUASH_MSG" "$GIT_DIR"/SQUASH_MSG || exit + cp "$squash_msg" "$GIT_DIR"/SQUASH_MSG || exit rm -f "$GIT_DIR"/MERGE_MSG do_with_author git commit --no-verify -e || die_failed_squash $sha1 "$rest" fi - rm -f "$SQUASH_MSG" "$FIXUP_MSG" + rm -f "$squash_msg" "$fixup_msg" ;; esac record_in_rewritten $sha1 ;; x|"exec") - read -r command rest < "$TODO" + read -r command rest < "$todo" mark_action_done printf 'Executing: %s\n' "$rest" # "exec" command doesn't take a sha1 in the todo-list. # => can't just use $sha1 here. - git rev-parse --verify HEAD > "$DOTEST"/stopped-sha + git rev-parse --verify HEAD > "$state_dir"/stopped-sha ${SHELL:-@SHELL_PATH@} -c "$rest" # Actual execution status=$? + # Run in subshell because require_clean_work_tree can die. + dirty=f + (require_clean_work_tree "rebase" 2>/dev/null) || dirty=t if test "$status" -ne 0 then warn "Execution failed: $rest" + test "$dirty" = f || + warn "and made changes to the index and/or the working tree" + warn "You can fix the problem, and then run" warn warn " git rebase --continue" warn exit "$status" - fi - # Run in subshell because require_clean_work_tree can die. - if ! (require_clean_work_tree) + elif test "$dirty" = t then + warn "Execution succeeded: $rest" + warn "but left changes to the index and/or the working tree" warn "Commit or stash your changes, and then run" warn warn " git rebase --continue" @@ -570,42 +501,42 @@ do_next () { warn "Unknown command: $command $sha1 $rest" if git rev-parse --verify -q "$sha1" >/dev/null then - die_with_patch $sha1 "Please fix this in the file $TODO." + die_with_patch $sha1 "Please fix this in the file $todo." else - die "Please fix this in the file $TODO." + die "Please fix this in the file $todo." fi ;; esac - test -s "$TODO" && return + test -s "$todo" && return comment_for_reflog finish && - HEADNAME=$(cat "$DOTEST"/head-name) && - OLDHEAD=$(cat "$DOTEST"/head) && - SHORTONTO=$(git rev-parse --short $(cat "$DOTEST"/onto)) && - NEWHEAD=$(git rev-parse HEAD) && - case $HEADNAME in + shortonto=$(git rev-parse --short $onto) && + newhead=$(git rev-parse HEAD) && + case $head_name in refs/*) - message="$GIT_REFLOG_ACTION: $HEADNAME onto $SHORTONTO" && - git update-ref -m "$message" $HEADNAME $NEWHEAD $OLDHEAD && - git symbolic-ref HEAD $HEADNAME + message="$GIT_REFLOG_ACTION: $head_name onto $shortonto" && + git update-ref -m "$message" $head_name $newhead $orig_head && + git symbolic-ref \ + -m "$GIT_REFLOG_ACTION: returning to $head_name" \ + HEAD $head_name ;; esac && { - test ! -f "$DOTEST"/verbose || - git diff-tree --stat $(cat "$DOTEST"/head)..HEAD + test ! -f "$state_dir"/verbose || + git diff-tree --stat $orig_head..HEAD } && { - test -s "$REWRITTEN_LIST" && - git notes copy --for-rewrite=rebase < "$REWRITTEN_LIST" || + test -s "$rewritten_list" && + git notes copy --for-rewrite=rebase < "$rewritten_list" || true # we don't care if this copying failed } && if test -x "$GIT_DIR"/hooks/post-rewrite && - test -s "$REWRITTEN_LIST"; then - "$GIT_DIR"/hooks/post-rewrite rebase < "$REWRITTEN_LIST" + test -s "$rewritten_list"; then + "$GIT_DIR"/hooks/post-rewrite rebase < "$rewritten_list" true # we don't care if this hook failed fi && - rm -rf "$DOTEST" && + rm -rf "$state_dir" && git gc --auto && - warn "Successfully rebased and updated $HEADNAME." + warn "Successfully rebased and updated $head_name." exit } @@ -625,11 +556,11 @@ skip_unnecessary_picks () { # fd=3 means we skip the command case "$fd,$command" in 3,pick|3,p) - # pick a commit whose parent is current $ONTO -> skip + # pick a commit whose parent is current $onto -> skip sha1=${rest%% *} case "$(git rev-parse --verify --quiet "$sha1"^)" in - "$ONTO"*) - ONTO=$sha1 + "$onto"*) + onto=$sha1 ;; *) fd=1 @@ -644,40 +575,42 @@ skip_unnecessary_picks () { ;; esac printf '%s\n' "$command${rest:+ }$rest" >&$fd - done <"$TODO" >"$TODO.new" 3>>"$DONE" && - mv -f "$TODO".new "$TODO" && + done <"$todo" >"$todo.new" 3>>"$done" && + mv -f "$todo".new "$todo" && case "$(peek_next_command)" in squash|s|fixup|f) - record_in_rewritten "$ONTO" + record_in_rewritten "$onto" ;; esac || die "Could not skip unnecessary pick commands" } -# check if no other options are set -is_standalone () { - test $# -eq 2 -a "$2" = '--' && - test -z "$ONTO" && - test -z "$PRESERVE_MERGES" && - test -z "$STRATEGY" && - test -z "$VERBOSE" -} - -get_saved_options () { - test -d "$REWRITTEN" && PRESERVE_MERGES=t - test -f "$DOTEST"/strategy && STRATEGY="$(cat "$DOTEST"/strategy)" - test -f "$DOTEST"/verbose && VERBOSE=t - test -f "$DOTEST"/rebase-root && REBASE_ROOT=t -} - # Rearrange the todo list that has both "pick sha1 msg" and # "pick sha1 fixup!/squash! msg" appears in it so that the latter # comes immediately after the former, and change "pick" to # "fixup"/"squash". rearrange_squash () { - sed -n -e 's/^pick \([0-9a-f]*\) \(squash\)! /\1 \2 /p' \ - -e 's/^pick \([0-9a-f]*\) \(fixup\)! /\1 \2 /p' \ - "$1" >"$1.sq" + # extract fixup!/squash! lines and resolve any referenced sha1's + while read -r pick sha1 message + do + case "$message" in + "squash! "*|"fixup! "*) + action="${message%%!*}" + rest="${message#*! }" + echo "$sha1 $action $rest" + # if it's a single word, try to resolve to a full sha1 and + # emit a second copy. This allows us to match on both message + # and on sha1 prefix + if test "${rest#* }" = "$rest"; then + fullsha="$(git rev-parse -q --verify "$rest" 2>/dev/null)" + if test -n "$fullsha"; then + # prefix the action to uniquely identify this line as + # intended for full sha1 match + echo "$sha1 +$action $fullsha" + fi + fi + esac + done >"$1.sq" <"$1" test -s "$1.sq" || return used= @@ -687,309 +620,200 @@ rearrange_squash () { *" $sha1 "*) continue ;; esac printf '%s\n' "$pick $sha1 $message" - while read -r squash action msg + used="$used$sha1 " + while read -r squash action msg_content do - case "$message" in - "$msg"*) - printf '%s\n' "$action $squash $action! $msg" - used="$used$squash " - ;; + case " $used" in + *" $squash "*) continue ;; + esac + emit=0 + case "$action" in + +*) + action="${action#+}" + # full sha1 prefix test + case "$msg_content" in "$sha1"*) emit=1;; esac ;; + *) + # message prefix test + case "$message" in "$msg_content"*) emit=1;; esac ;; esac + if test $emit = 1; then + printf '%s\n' "$action $squash $action! $msg_content" + used="$used$squash " + fi done <"$1.sq" done >"$1.rearranged" <"$1" cat "$1.rearranged" >"$1" rm -f "$1.sq" "$1.rearranged" } -LF=' -' -parse_onto () { - case "$1" in - *...*) - if left=${1%...*} right=${1#*...} && - onto=$(git merge-base --all ${left:-HEAD} ${right:-HEAD}) +case "$action" in +continue) + # do we have anything to commit? + if git diff-index --cached --quiet --ignore-submodules HEAD -- + then + : Nothing to commit -- skip this + else + if ! test -f "$author_script" then - case "$onto" in - ?*"$LF"?* | '') - exit 1 ;; - esac - echo "$onto" - exit 0 - fi - esac - git rev-parse --verify "$1^0" -} + die "You have staged changes in your working tree. If these changes are meant to be +squashed into the previous commit, run: -while test $# != 0 -do - case "$1" in - --no-verify) - OK_TO_SKIP_PRE_REBASE=yes - ;; - --verify) - ;; - --continue) - is_standalone "$@" || usage - get_saved_options - comment_for_reflog continue - - test -d "$DOTEST" || die "No interactive rebase running" - - # Sanity check - git rev-parse --verify HEAD >/dev/null || - die "Cannot read HEAD" - git update-index --ignore-submodules --refresh && - git diff-files --quiet --ignore-submodules || - die "Working tree is dirty" - - # do we have anything to commit? - if git diff-index --cached --quiet --ignore-submodules HEAD -- - then - : Nothing to commit -- skip this - else - . "$AUTHOR_SCRIPT" || - die "Cannot find the author identity" - amend= - if test -f "$AMEND" - then - amend=$(git rev-parse --verify HEAD) - test "$amend" = $(cat "$AMEND") || - die "\ -You have uncommitted changes in your working tree. Please, commit them -first and then run 'git rebase --continue' again." - git reset --soft HEAD^ || - die "Cannot rewind the HEAD" - fi - do_with_author git commit --no-verify -F "$MSG" -e || { - test -n "$amend" && git reset --soft $amend - die "Could not commit staged changes." - } - fi + git commit --amend - record_in_rewritten "$(cat "$DOTEST"/stopped-sha)" +If they are meant to go into a new commit, run: - require_clean_work_tree - do_rest - ;; - --abort) - is_standalone "$@" || usage - get_saved_options - comment_for_reflog abort - - git rerere clear - test -d "$DOTEST" || die "No interactive rebase running" - - HEADNAME=$(cat "$DOTEST"/head-name) - HEAD=$(cat "$DOTEST"/head) - case $HEADNAME in - refs/*) - git symbolic-ref HEAD $HEADNAME - ;; - esac && - output git reset --hard $HEAD && - rm -rf "$DOTEST" - exit - ;; - --skip) - is_standalone "$@" || usage - get_saved_options - comment_for_reflog skip + git commit - git rerere clear - test -d "$DOTEST" || die "No interactive rebase running" +In both case, once you're done, continue with: - output git reset --hard && do_rest - ;; - -s) - case "$#,$1" in - *,*=*) - STRATEGY="-s "$(expr "z$1" : 'z-[^=]*=\(.*\)') ;; - 1,*) - usage ;; - *) - STRATEGY="-s $2" - shift ;; - esac - ;; - -m) - # we use merge anyway - ;; - -v) - VERBOSE=t - ;; - -p) - PRESERVE_MERGES=t - ;; - -i) - # yeah, we know - ;; - --no-ff) - NEVER_FF=t - ;; - --root) - REBASE_ROOT=t - ;; - --autosquash) - AUTOSQUASH=t - ;; - --no-autosquash) - AUTOSQUASH= - ;; - --onto) - shift - ONTO=$(parse_onto "$1") || - die "Does not point to a valid commit: $1" - ;; - --) - shift - test -z "$REBASE_ROOT" -a $# -ge 1 -a $# -le 2 || - test ! -z "$REBASE_ROOT" -a $# -le 1 || usage - test -d "$DOTEST" && - die "Interactive rebase already started" - - git var GIT_COMMITTER_IDENT >/dev/null || - die "You need to set your committer info first" - - if test -z "$REBASE_ROOT" + git rebase --continue +" + fi + . "$author_script" || + die "Error trying to find the author identity to amend commit" + current_head= + if test -f "$amend" then - UPSTREAM_ARG="$1" - UPSTREAM=$(git rev-parse --verify "$1") || die "Invalid base" - test -z "$ONTO" && ONTO=$UPSTREAM - shift - else - UPSTREAM= - UPSTREAM_ARG=--root - test -z "$ONTO" && - die "You must specify --onto when using --root" + current_head=$(git rev-parse --verify HEAD) + test "$current_head" = $(cat "$amend") || + die "\ +You have uncommitted changes in your working tree. Please, commit them +first and then run 'git rebase --continue' again." + git reset --soft HEAD^ || + die "Cannot rewind the HEAD" fi - run_pre_rebase_hook "$UPSTREAM_ARG" "$@" + do_with_author git commit --no-verify -F "$msg" -e || { + test -n "$current_head" && git reset --soft $current_head + die "Could not commit staged changes." + } + fi - comment_for_reflog start + record_in_rewritten "$(cat "$state_dir"/stopped-sha)" - require_clean_work_tree + require_clean_work_tree "rebase" + do_rest + ;; +skip) + git rerere clear - if test ! -z "$1" - then - output git checkout "$1" || - die "Could not checkout $1" - fi + do_rest + ;; +esac - HEAD=$(git rev-parse --verify HEAD) || die "No HEAD?" - mkdir "$DOTEST" || die "Could not create temporary $DOTEST" +git var GIT_COMMITTER_IDENT >/dev/null || + die "You need to set your committer info first" - : > "$DOTEST"/interactive || die "Could not mark as interactive" - git symbolic-ref HEAD > "$DOTEST"/head-name 2> /dev/null || - echo "detached HEAD" > "$DOTEST"/head-name +comment_for_reflog start - echo $HEAD > "$DOTEST"/head - case "$REBASE_ROOT" in - '') - rm -f "$DOTEST"/rebase-root ;; - *) - : >"$DOTEST"/rebase-root ;; - esac - echo $ONTO > "$DOTEST"/onto - test -z "$STRATEGY" || echo "$STRATEGY" > "$DOTEST"/strategy - test t = "$VERBOSE" && : > "$DOTEST"/verbose - if test t = "$PRESERVE_MERGES" - then - if test -z "$REBASE_ROOT" - then - mkdir "$REWRITTEN" && - for c in $(git merge-base --all $HEAD $UPSTREAM) - do - echo $ONTO > "$REWRITTEN"/$c || - die "Could not init rewritten commits" - done - else - mkdir "$REWRITTEN" && - echo $ONTO > "$REWRITTEN"/root || - die "Could not init rewritten commits" - fi - # 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 --cherry-pick" - fi +if test ! -z "$switch_to" +then + output git checkout "$switch_to" -- || + die "Could not checkout $switch_to" +fi - SHORTHEAD=$(git rev-parse --short $HEAD) - SHORTONTO=$(git rev-parse --short $ONTO) - if test -z "$REBASE_ROOT" - # this is now equivalent to ! -z "$UPSTREAM" - then - SHORTUPSTREAM=$(git rev-parse --short $UPSTREAM) - REVISIONS=$UPSTREAM...$HEAD - SHORTREVISIONS=$SHORTUPSTREAM..$SHORTHEAD - else - REVISIONS=$ONTO...$HEAD - SHORTREVISIONS=$SHORTHEAD - fi - git rev-list $MERGES_OPTION --pretty=oneline --abbrev-commit \ - --abbrev=7 --reverse --left-right --topo-order \ - $REVISIONS | \ - sed -n "s/^>//p" | - while read -r shortsha1 rest +orig_head=$(git rev-parse --verify HEAD) || die "No HEAD?" +mkdir "$state_dir" || die "Could not create temporary $state_dir" + +: > "$state_dir"/interactive || die "Could not mark as interactive" +write_basic_state +if test t = "$preserve_merges" +then + if test -z "$rebase_root" + then + mkdir "$rewritten" && + for c in $(git merge-base --all $orig_head $upstream) do - if test t != "$PRESERVE_MERGES" - then - printf '%s\n' "pick $shortsha1 $rest" >> "$TODO" - else - sha1=$(git rev-parse $shortsha1) - if test -z "$REBASE_ROOT" - then - preserve=t - for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-) - do - if test -f "$REWRITTEN"/$p -a \( $p != $ONTO -o $sha1 = $first_after_upstream \) - then - preserve=f - fi - done - else - preserve=f - fi - if test f = "$preserve" - then - touch "$REWRITTEN"/$sha1 - printf '%s\n' "pick $shortsha1 $rest" >> "$TODO" - fi - fi + echo $onto > "$rewritten"/$c || + die "Could not init rewritten commits" done - - # Watch for commits that been dropped by --cherry-pick - if test t = "$PRESERVE_MERGES" + else + mkdir "$rewritten" && + echo $onto > "$rewritten"/root || + die "Could not init rewritten commits" + fi + # No cherry-pick because our first pass is to determine + # parents to rewrite and skipping dropped commits would + # prematurely end our probe + merges_option= +else + merges_option="--no-merges --cherry-pick" +fi + +shorthead=$(git rev-parse --short $orig_head) +shortonto=$(git rev-parse --short $onto) +if test -z "$rebase_root" + # this is now equivalent to ! -z "$upstream" +then + shortupstream=$(git rev-parse --short $upstream) + revisions=$upstream...$orig_head + shortrevisions=$shortupstream..$shorthead +else + revisions=$onto...$orig_head + shortrevisions=$shorthead +fi +git rev-list $merges_option --pretty=oneline --abbrev-commit \ + --abbrev=7 --reverse --left-right --topo-order \ + $revisions | \ + sed -n "s/^>//p" | +while read -r shortsha1 rest +do + if test t != "$preserve_merges" + then + printf '%s\n' "pick $shortsha1 $rest" >> "$todo" + else + sha1=$(git rev-parse $shortsha1) + if test -z "$rebase_root" then - mkdir "$DROPPED" - # Save all non-cherry-picked changes - git rev-list $REVISIONS --left-right --cherry-pick | \ - sed -n "s/^>//p" > "$DOTEST"/not-cherry-picks - # Now all commits and note which ones are missing in - # not-cherry-picks and hence being dropped - git rev-list $REVISIONS | - while read rev + preserve=t + for p in $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-) do - if test -f "$REWRITTEN"/$rev -a "$(sane_grep "$rev" "$DOTEST"/not-cherry-picks)" = "" + if test -f "$rewritten"/$p 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 $rev | cut -d' ' -s -f2 > "$DROPPED"/$rev - short=$(git rev-list -1 --abbrev-commit --abbrev=7 $rev) - sane_grep -v "^[a-z][a-z]* $short" <"$TODO" > "${TODO}2" ; mv "${TODO}2" "$TODO" - rm "$REWRITTEN"/$rev + preserve=f fi done + else + preserve=f + fi + if test f = "$preserve" + then + touch "$rewritten"/$sha1 + printf '%s\n' "pick $shortsha1 $rest" >> "$todo" fi + fi +done - test -s "$TODO" || echo noop >> "$TODO" - test -n "$AUTOSQUASH" && rearrange_squash "$TODO" - cat >> "$TODO" << EOF +# Watch for commits that been dropped by --cherry-pick +if test t = "$preserve_merges" +then + mkdir "$dropped" + # Save all non-cherry-picked changes + git rev-list $revisions --left-right --cherry-pick | \ + sed -n "s/^>//p" > "$state_dir"/not-cherry-picks + # Now all commits and note which ones are missing in + # not-cherry-picks and hence being dropped + git rev-list $revisions | + while read rev + do + if test -f "$rewritten"/$rev -a "$(sane_grep "$rev" "$state_dir"/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 $rev | cut -d' ' -s -f2 > "$dropped"/$rev + short=$(git rev-list -1 --abbrev-commit --abbrev=7 $rev) + sane_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 >> "$todo" +test -n "$autosquash" && rearrange_squash "$todo" +cat >> "$todo" << EOF -# Rebase $SHORTREVISIONS onto $SHORTONTO +# Rebase $shortrevisions onto $shortonto # # Commands: # p, pick = use commit @@ -997,29 +821,25 @@ first and then run 'git rebase --continue' again." # e, edit = use commit, but stop for amending # s, squash = use commit, but meld into previous commit # f, fixup = like "squash", but discard this commit's log message -# x <cmd>, exec <cmd> = Run a shell command <cmd>, and stop if it fails +# x, exec = run command (the rest of the line) using shell # # If you remove a line here THAT COMMIT WILL BE LOST. # However, if you remove everything, the rebase will be aborted. # EOF - has_action "$TODO" || - die_abort "Nothing to do" +has_action "$todo" || + die_abort "Nothing to do" - cp "$TODO" "$TODO".backup - git_editor "$TODO" || - die_abort "Could not execute editor" +cp "$todo" "$todo".backup +git_editor "$todo" || + die_abort "Could not execute editor" - has_action "$TODO" || - die_abort "Nothing to do" +has_action "$todo" || + die_abort "Nothing to do" - test -d "$REWRITTEN" || test -n "$NEVER_FF" || skip_unnecessary_picks +test -d "$rewritten" || test -n "$force_rebase" || skip_unnecessary_picks - output git checkout $ONTO || die_abort "could not detach HEAD" - git update-ref ORIG_HEAD $HEAD - do_rest - ;; - esac - shift -done +output git checkout $onto || die_abort "could not detach HEAD" +git update-ref ORIG_HEAD $orig_head +do_rest |