diff options
Diffstat (limited to 'git-rebase--interactive.sh')
| -rw-r--r-- | git-rebase--interactive.sh | 1330 |
1 files changed, 158 insertions, 1172 deletions
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh index 4cde685b43..299ded2137 100644 --- a/git-rebase--interactive.sh +++ b/git-rebase--interactive.sh @@ -5,7 +5,7 @@ # Copyright (c) 2006 Johannes E. Schindelin # # The original idea comes from Eric W. Biederman, in -# http://article.gmane.org/gmane.comp.version-control.git/22407 +# https://public-inbox.org/git/m1odwkyuf5.fsf_-_@ebiederm.dsl.xmission.com/ # # The file containing rebase commands, comments, and empty lines. # This file is created by "git rebase -i" then edited by the user. As @@ -13,96 +13,20 @@ # 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="$state_dir"/done - -# The commit message that is planned to be used for any changes that -# need to be committed following a user interaction. -msg="$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 -# is seen, the file is created and the commit message from the -# previous commit and from the first squash/fixup commit are written -# to it. The commit message for each subsequent squash/fixup commit -# 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 $count is the number of commits whose messages have been -# written to the file so far (including the initial "pick" commit). -# Each time that a commit message is processed, this line is read and -# updated. It is deleted just before the combined commit is made. -squash_msg="$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="$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 -# $upstream. They are not necessarily rewritten, but their children -# might be. This ensures that commits on merged, but otherwise -# unrelated side branches are left alone. (Think "X" in the man page's -# example.) -rewritten="$state_dir"/rewritten - -dropped="$state_dir"/dropped - -end="$state_dir"/end -msgnum="$state_dir"/msgnum - -# A script to set the GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and -# GIT_AUTHOR_DATE that will be used for the commit that is currently -# being rebased. -author_script="$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 -# --continue" is executed, if there are any staged changes then they -# 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="$state_dir"/amend - -# For the post-rewrite hook, we make a list of rewritten commits and -# their new sha1s. The rewritten-pending list keeps the sha1s of -# commits that have been processed, but not committed yet, -# e.g. because they are waiting for a 'squash' command. -rewritten_list="$state_dir"/rewritten-list -rewritten_pending="$state_dir"/rewritten-pending - -# Work around Git for Windows' Bash whose "read" does not strip CRLF -# and leaves CR at the end instead. -cr=$(printf "\015") - -strategy_args=${strategy:+--strategy=$strategy} -eval ' - for strategy_opt in '"$strategy_opts"' - do - strategy_args="$strategy_args -X$(git rev-parse --sq-quote "${strategy_opt#--}")" - done -' - GIT_CHERRY_PICK_HELP="$resolvemsg" export GIT_CHERRY_PICK_HELP -comment_char=$(git config --get core.commentchar 2>/dev/null | cut -c1) -: ${comment_char:=#} - -warn () { - printf '%s\n' "$*" >&2 -} - -# Output the commit message for the specified commit. -commit_message () { - git cat-file commit "$1" | sed "1,/^$/d" -} +comment_char=$(git config --get core.commentchar 2>/dev/null) +case "$comment_char" in +'' | auto) + comment_char="#" + ;; +?) + ;; +*) + comment_char=$(echo "$comment_char" | cut -c1) + ;; +esac orig_reflog_action="$GIT_REFLOG_ACTION" @@ -115,103 +39,40 @@ comment_for_reflog () { esac } -last_count= -mark_action_done () { - sed -e 1q < "$todo" >> "$done" - sed -e 1d < "$todo" >> "$todo".new - mv -f "$todo".new "$todo" - new_count=$(git stripspace --strip-comments <"$done" | wc -l) - echo $new_count >"$msgnum" - total=$(($new_count + $(git stripspace --strip-comments <"$todo" | wc -l))) - echo $total >"$end" - if test "$last_count" != "$new_count" - then - last_count=$new_count - printf "Rebasing (%d/%d)\r" $new_count $total - test -z "$verbose" || echo - fi -} - -# Put the last action marked done at the beginning of the todo list -# again. If there has not been an action marked done yet, leave the list of -# items on the todo list unchanged. -reschedule_last_action () { - tail -n 1 "$done" | cat - "$todo" >"$todo".new - sed -e \$d <"$done" >"$done".new - mv -f "$todo".new "$todo" - mv -f "$done".new "$done" -} - append_todo_help () { - git stripspace --comment-lines >>"$todo" <<\EOF - + gettext " Commands: - p, pick = use commit - r, reword = use commit, but edit the commit message - 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, exec = run command (the rest of the line) using shell - d, drop = remove commit +p, pick <commit> = use commit +r, reword <commit> = use commit, but edit the commit message +e, edit <commit> = use commit, but stop for amending +s, squash <commit> = use commit, but meld into previous commit +f, fixup <commit> = like \"squash\", but discard this commit's log message +x, exec <command> = run command (the rest of the line) using shell +d, drop <commit> = remove commit +l, label <label> = label current HEAD with a name +t, reset <label> = reset HEAD to a label +m, merge [-C <commit> | -c <commit>] <label> [# <oneline>] +. create a merge commit using the original merge commit's +. message (or the oneline, if no original merge commit was +. specified). Use -c <commit> to reword the commit message. These lines can be re-ordered; they are executed from top to bottom. +" | git stripspace --comment-lines >>"$todo" -EOF if test $(get_missing_commit_check_level) = error then - git stripspace --comment-lines >>"$todo" <<\EOF + gettext " Do not remove any line. Use 'drop' explicitly to remove a commit. -EOF +" | git stripspace --comment-lines >>"$todo" else - git stripspace --comment-lines >>"$todo" <<\EOF + gettext " If you remove a line here THAT COMMIT WILL BE LOST. -EOF +" | git stripspace --comment-lines >>"$todo" fi } -make_patch () { - sha1_and_parents="$(git rev-list --parents -1 "$1")" - case "$sha1_and_parents" in - ?*' '?*' '?*) - git diff --cc $sha1_and_parents - ;; - ?*' '?*) - git diff-tree -p "$1^!" - ;; - *) - echo "Root commit" - ;; - esac > "$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 "$1" > "$state_dir"/stopped-sha - make_patch "$1" - git rerere - die "$2" -} - -exit_with_patch () { - echo "$1" > "$state_dir"/stopped-sha - make_patch $1 - git rev-parse --verify HEAD > "$amend" - gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} - warn "You can amend the commit now, with" - warn - warn " git commit --amend $gpg_sign_opt_quoted" - warn - warn "Once you are satisfied with your changes, run" - warn - warn " git rebase --continue" - warn - exit $2 -} - die_abort () { + apply_autostash rm -rf "$state_dir" die "$1" } @@ -220,28 +81,6 @@ has_action () { test -n "$(git stripspace --strip-comments <"$1")" } -is_empty_commit() { - tree=$(git rev-parse -q --verify "$1"^{tree} 2>/dev/null || - die "$1: not a commit that can be picked") - ptree=$(git rev-parse -q --verify "$1"^^{tree} 2>/dev/null || - ptree=4b825dc642cb6eb9a060e54bf8d69288fbee4904) - test "$tree" = "$ptree" -} - -is_merge_commit() -{ - git rev-parse --verify --quiet "$1"^2 >/dev/null 2>&1 -} - -# Run command with GIT_AUTHOR_NAME, GIT_AUTHOR_EMAIL, and -# GIT_AUTHOR_DATE exported from the current environment. -do_with_author () { - ( - export GIT_AUTHOR_NAME GIT_AUTHOR_EMAIL GIT_AUTHOR_DATE - "$@" - ) -} - git_sequence_editor () { if test -z "$GIT_SEQUENCE_EDITOR" then @@ -255,703 +94,18 @@ git_sequence_editor () { eval "$GIT_SEQUENCE_EDITOR" '"$@"' } -pick_one () { - ff=--ff - - case "$1" in -n) sha1=$2; ff= ;; *) sha1=$1 ;; esac - case "$force_rebase" in '') ;; ?*) ff= ;; esac - output git rev-parse --verify $sha1 || die "Invalid commit name: $sha1" - - if is_empty_commit "$sha1" - then - empty_args="--allow-empty" - fi - - test -d "$rewritten" && - pick_one_preserving_merges "$@" && return - output eval git cherry-pick \ - ${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \ - "$strategy_args" $empty_args $ff "$@" - - # If cherry-pick dies it leaves the to-be-picked commit unrecorded. Reschedule - # previous task so this commit is not lost. - ret=$? - case "$ret" in [01]) ;; *) reschedule_last_action ;; esac - return $ret -} - -pick_one_preserving_merges () { - fast_forward=t - case "$1" in - -n) - fast_forward=f - sha1=$2 - ;; - *) - sha1=$1 - ;; - esac - sha1=$(git rev-parse $sha1) - - if test -f "$state_dir"/current-commit - then - if test "$fast_forward" = t - then - while read current_commit - do - git rev-parse HEAD > "$rewritten"/$current_commit - done <"$state_dir"/current-commit - rm "$state_dir"/current-commit || - die "Cannot write current commit's replacement sha1" - fi - fi - - echo $sha1 >> "$state_dir"/current-commit - - # rewrite parents; if none were rewritten, we can fast-forward. - new_parents= - pend=" $(git rev-list --parents -1 $sha1 | cut -d' ' -s -f2-)" - if test "$pend" = " " - then - pend=" root" - fi - 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 - *$new_p*) - ;; # do nothing; that parent is already there - *) - new_parents="$new_parents $new_p" - ;; - esac - else - if test -f "$dropped"/$p - then - fast_forward=f - replacement="$(cat "$dropped"/$p)" - test -z "$replacement" && replacement=root - pend=" $replacement$pend" - else - new_parents="$new_parents $p" - fi - fi - done - case $fast_forward in - t) - output warn "Fast-forward to $sha1" - output git reset --hard $sha1 || - die "Cannot fast-forward to $sha1" - ;; - f) - first_parent=$(expr "$new_parents" : ' \([^ ]*\)') - - 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: $sha1" - - # redo merge - author_script_content=$(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} - merge_args="--no-log --no-ff" - if ! do_with_author output eval \ - 'git merge ${gpg_sign_opt:+"$gpg_sign_opt"} \ - $merge_args $strategy_args -m "$msg_content" $new_parents' - then - printf "%s\n" "$msg_content" > "$GIT_DIR"/MERGE_MSG - die_with_patch $sha1 "Error redoing merge $sha1" - fi - echo "$sha1 $(git rev-parse HEAD^0)" >> "$rewritten_list" - ;; - *) - output eval git cherry-pick \ - ${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \ - "$strategy_args" "$@" || - die_with_patch $sha1 "Could not pick $sha1" - ;; - esac - ;; - esac -} - -nth_string () { - case "$1" in - *1[0-9]|*[04-9]) echo "$1"th;; - *1) echo "$1"st;; - *2) echo "$1"nd;; - *3) echo "$1"rd;; - esac -} - -update_squash_messages () { - if test -f "$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" < "$squash_msg".bak)+1)) - { - printf '%s\n' "$comment_char This is a combination of $count commits." - sed -e 1d -e '2,/^./{ - /^$/d - }' <"$squash_msg".bak - } >"$squash_msg" - else - commit_message HEAD > "$fixup_msg" || die "Cannot write $fixup_msg" - count=2 - { - printf '%s\n' "$comment_char This is a combination of 2 commits." - printf '%s\n' "$comment_char The first commit's message is:" - echo - cat "$fixup_msg" - } >"$squash_msg" - fi - case $1 in - squash) - rm -f "$fixup_msg" - echo - printf '%s\n' "$comment_char This is the $(nth_string $count) commit message:" - echo - commit_message $2 - ;; - fixup) - echo - printf '%s\n' "$comment_char The $(nth_string $count) commit message will be skipped:" - echo - # Change the space after the comment character to TAB: - commit_message $2 | git stripspace --comment-lines | sed -e 's/ / /' - ;; - esac >>"$squash_msg" -} - -peek_next_command () { - git stripspace --strip-comments <"$todo" | sed -n -e 's/ .*//p' -e q -} - -# A squash/fixup has failed. Prepare the long version of the squash -# commit message, then die_with_patch. This code path requires the -# user to edit the combined commit message for all commits that have -# been squashed/fixedup so far. So also erase the old squash -# messages, effectively causing the combined commit to be used as the -# new basis for any further squash/fixups. Args: sha1 rest -die_failed_squash() { - mv "$squash_msg" "$msg" || exit - rm -f "$fixup_msg" - cp "$msg" "$GIT_DIR"/MERGE_MSG || exit - warn - warn "Could not apply $1... $2" - die_with_patch $1 "" -} - -flush_rewritten_pending() { - test -s "$rewritten_pending" || return - newsha1="$(git rev-parse HEAD^0)" - sed "s/$/ $newsha1/" < "$rewritten_pending" >> "$rewritten_list" - rm -f "$rewritten_pending" -} - -record_in_rewritten() { - oldsha1="$(git rev-parse $1)" - echo "$oldsha1" >> "$rewritten_pending" - - case "$(peek_next_command)" in - squash|s|fixup|f) - ;; - *) - flush_rewritten_pending - ;; - esac -} - -do_pick () { - if test "$(git rev-parse HEAD)" = "$squash_onto" - then - # Set the correct commit message and author info on the - # sentinel root before cherry-picking the original changes - # without committing (-n). Finally, update the sentinel again - # to include these changes. If the cherry-pick results in a - # conflict, this means our behaviour is similar to a standard - # failed cherry-pick during rebase, with a dirty index to - # resolve before manually running git commit --amend then git - # rebase --continue. - git commit --allow-empty --allow-empty-message --amend \ - --no-post-rewrite -n -q -C $1 && - pick_one -n $1 && - git commit --allow-empty --allow-empty-message \ - --amend --no-post-rewrite -n -q -C $1 \ - ${gpg_sign_opt:+"$gpg_sign_opt"} || - die_with_patch $1 "Could not apply $1... $2" - else - pick_one $1 || - die_with_patch $1 "Could not apply $1... $2" - fi -} - -do_next () { - rm -f "$msg" "$author_script" "$amend" "$state_dir"/stopped-sha || exit - read -r command sha1 rest < "$todo" - case "$command" in - "$comment_char"*|''|noop|drop|d) - mark_action_done - ;; - "$cr") - # Work around CR left by "read" (e.g. with Git for Windows' Bash). - mark_action_done - ;; - pick|p) - comment_for_reflog pick - - mark_action_done - do_pick $sha1 "$rest" - record_in_rewritten $sha1 - ;; - reword|r) - comment_for_reflog reword - - mark_action_done - do_pick $sha1 "$rest" - git commit --amend --no-post-rewrite ${gpg_sign_opt:+"$gpg_sign_opt"} || { - warn "Could not amend commit after successfully picking $sha1... $rest" - warn "This is most likely due to an empty commit message, or the pre-commit hook" - warn "failed. If the pre-commit hook failed, you may need to resolve the issue before" - warn "you are able to reword the commit." - exit_with_patch $sha1 1 - } - record_in_rewritten $sha1 - ;; - edit|e) - comment_for_reflog edit - - mark_action_done - do_pick $sha1 "$rest" - warn "Stopped at $sha1... $rest" - exit_with_patch $sha1 0 - ;; - squash|s|fixup|f) - case "$command" in - squash|s) - squash_style=squash - ;; - fixup|f) - squash_style=fixup - ;; - esac - comment_for_reflog $squash_style - - test -f "$done" && has_action "$done" || - die "Cannot '$squash_style' without a previous commit" - - mark_action_done - update_squash_messages $squash_style $sha1 - author_script_content=$(get_author_ident_from_commit HEAD) - echo "$author_script_content" > "$author_script" - eval "$author_script_content" - if ! pick_one -n $sha1 - then - git rev-parse --verify HEAD >"$amend" - die_failed_squash $sha1 "$rest" - fi - case "$(peek_next_command)" in - squash|s|fixup|f) - # This is an intermediate commit; its message will only be - # used in case of trouble. So use the long version: - do_with_author output git commit --amend --no-verify -F "$squash_msg" \ - ${gpg_sign_opt:+"$gpg_sign_opt"} || - die_failed_squash $sha1 "$rest" - ;; - *) - # This is the final command of this squash/fixup group - if test -f "$fixup_msg" - then - do_with_author git commit --amend --no-verify -F "$fixup_msg" \ - ${gpg_sign_opt:+"$gpg_sign_opt"} || - die_failed_squash $sha1 "$rest" - else - cp "$squash_msg" "$GIT_DIR"/SQUASH_MSG || exit - rm -f "$GIT_DIR"/MERGE_MSG - do_with_author git commit --amend --no-verify -F "$GIT_DIR"/SQUASH_MSG -e \ - ${gpg_sign_opt:+"$gpg_sign_opt"} || - die_failed_squash $sha1 "$rest" - fi - rm -f "$squash_msg" "$fixup_msg" - ;; - esac - record_in_rewritten $sha1 - ;; - x|"exec") - read -r command rest < "$todo" - mark_action_done - printf 'Executing: %s\n' "$rest" - "${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 - if test $status -eq 127 # command not found - then - status=1 - fi - exit "$status" - 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" - warn - exit 1 - fi - ;; - *) - warn "Unknown command: $command $sha1 $rest" - fixtodo="Please fix this using 'git rebase --edit-todo'." - if git rev-parse --verify -q "$sha1" >/dev/null - then - die_with_patch $sha1 "$fixtodo" - else - die "$fixtodo" - fi - ;; - esac - test -s "$todo" && return - - comment_for_reflog finish && - newhead=$(git rev-parse HEAD) && - case $head_name in - refs/*) - message="$GIT_REFLOG_ACTION: $head_name onto $onto" && - git update-ref -m "$message" $head_name $newhead $orig_head && - git symbolic-ref \ - -m "$GIT_REFLOG_ACTION: returning to $head_name" \ - HEAD $head_name - ;; - esac && { - test ! -f "$state_dir"/verbose || - git diff-tree --stat $orig_head..HEAD - } && - { - test -s "$rewritten_list" && - git notes copy --for-rewrite=rebase < "$rewritten_list" || - true # we don't care if this copying failed - } && - hook="$(git rev-parse --git-path hooks/post-rewrite)" - if test -x "$hook" && test -s "$rewritten_list"; then - "$hook" rebase < "$rewritten_list" - true # we don't care if this hook failed - fi && - warn "Successfully rebased and updated $head_name." - - return 1 # not failure; just to break the do_rest loop -} - -# can only return 0, when the infinite loop breaks -do_rest () { - while : - do - do_next || break - done -} - -# skip picking commits whose parents are unchanged -skip_unnecessary_picks () { - fd=3 - while read -r command rest - do - # fd=3 means we skip the command - case "$fd,$command" in - 3,pick|3,p) - # pick a commit whose parent is current $onto -> skip - sha1=${rest%% *} - case "$(git rev-parse --verify --quiet "$sha1"^)" in - "$onto"*) - onto=$sha1 - ;; - *) - fd=1 - ;; - esac - ;; - 3,"$comment_char"*|3,) - # copy comments - ;; - *) - fd=1 - ;; - esac - printf '%s\n' "$command${rest:+ }$rest" >&$fd - done <"$todo" >"$todo.new" 3>>"$done" && - mv -f "$todo".new "$todo" && - case "$(peek_next_command)" in - squash|s|fixup|f) - record_in_rewritten "$onto" - ;; - esac || - die "Could not skip unnecessary pick commands" -} - -transform_todo_ids () { - while read -r command rest - do - case "$command" in - "$comment_char"* | exec) - # Be careful for oddball commands like 'exec' - # that do not have a SHA-1 at the beginning of $rest. - ;; - *) - sha1=$(git rev-parse --verify --quiet "$@" ${rest%%[ ]*}) && - rest="$sha1 ${rest#*[ ]}" - ;; - esac - printf '%s\n' "$command${rest:+ }$rest" - done <"$todo" >"$todo.new" && - mv -f "$todo.new" "$todo" -} - expand_todo_ids() { - transform_todo_ids + git rebase--helper --expand-ids } collapse_todo_ids() { - transform_todo_ids --short -} - -# 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". -# -# Note that if the config has specified a custom instruction format -# each log message will be re-retrieved in order to normalize the -# autosquash arrangement -rearrange_squash () { - # extract fixup!/squash! lines and resolve any referenced sha1's - while read -r pick sha1 message - do - test -z "${format}" || message=$(git log -n 1 --format="%s" ${sha1}) - case "$message" in - "squash! "*|"fixup! "*) - action="${message%%!*}" - rest=$message - prefix= - # skip all squash! or fixup! (but save for later) - while : - do - case "$rest" in - "squash! "*|"fixup! "*) - prefix="$prefix${rest%%!*}," - rest="${rest#*! }" - ;; - *) - break - ;; - esac - done - printf '%s %s %s %s\n' "$sha1" "$action" "$prefix" "$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 $prefix $fullsha" - fi - fi - esac - done >"$1.sq" <"$1" - test -s "$1.sq" || return - - used= - while read -r pick sha1 message - do - case " $used" in - *" $sha1 "*) continue ;; - esac - printf '%s\n' "$pick $sha1 $message" - test -z "${format}" || message=$(git log -n 1 --format="%s" ${sha1}) - used="$used$sha1 " - while read -r squash action msg_prefix msg_content - do - 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 $emit = 1; then - if test -n "${format}" - then - msg_content=$(git log -n 1 --format="${format}" ${squash}) - else - msg_content="$(echo "$msg_prefix" | sed "s/,/! /g")$msg_content" - fi - printf '%s\n' "$action $squash $msg_content" - used="$used$squash " - fi - done <"$1.sq" - done >"$1.rearranged" <"$1" - cat "$1.rearranged" >"$1" - rm -f "$1.sq" "$1.rearranged" -} - -# Add commands after a pick or after a squash/fixup serie -# in the todo list. -add_exec_commands () { - { - first=t - while read -r insn rest - do - case $insn in - pick) - test -n "$first" || - printf "%s" "$cmd" - ;; - esac - printf "%s %s\n" "$insn" "$rest" - first= - done - printf "%s" "$cmd" - } <"$1" >"$1.new" && - mv "$1.new" "$1" -} - -# Check if the SHA-1 passed as an argument is a -# correct one, if not then print $2 in "$todo".badsha -# $1: the SHA-1 to test -# $2: the line number of the input -# $3: the input filename -check_commit_sha () { - badsha=0 - if test -z $1 - then - badsha=1 - else - sha1_verif="$(git rev-parse --verify --quiet $1^{commit})" - if test -z $sha1_verif - then - badsha=1 - fi - fi - - if test $badsha -ne 0 - then - line="$(sed -n -e "${2}p" "$3")" - warn "Warning: the SHA-1 is missing or isn't" \ - "a commit in the following line:" - warn " - $line" - warn - fi - - return $badsha -} - -# prints the bad commits and bad commands -# from the todolist in stdin -check_bad_cmd_and_sha () { - retval=0 - lineno=0 - while read -r command rest - do - lineno=$(( $lineno + 1 )) - case $command in - "$comment_char"*|''|noop|x|exec) - # Doesn't expect a SHA-1 - ;; - "$cr") - # Work around CR left by "read" (e.g. with Git for - # Windows' Bash). - ;; - pick|p|drop|d|reword|r|edit|e|squash|s|fixup|f) - if ! check_commit_sha "${rest%%[ ]*}" "$lineno" "$1" - then - retval=1 - fi - ;; - *) - line="$(sed -n -e "${lineno}p" "$1")" - warn "Warning: the command isn't recognized" \ - "in the following line:" - warn " - $line" - warn - retval=1 - ;; - esac - done <"$1" - return $retval -} - -# Print the list of the SHA-1 of the commits -# from stdin to stdout -todo_list_to_sha_list () { - git stripspace --strip-comments | - while read -r command sha1 rest - do - case $command in - "$comment_char"*|''|noop|x|"exec") - ;; - *) - long_sha=$(git rev-list --no-walk "$sha1" 2>/dev/null) - printf "%s\n" "$long_sha" - ;; - esac - done -} - -# Use warn for each line in stdin -warn_lines () { - while read -r line - do - warn " - $line" - done + git rebase--helper --shorten-ids } # Switch to the branch in $into and notify it in the reflog checkout_onto () { GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name" - output git checkout $onto || die_abort "could not detach HEAD" + output git checkout $onto || die_abort "$(gettext "could not detach HEAD")" git update-ref ORIG_HEAD $orig_head } @@ -962,336 +116,168 @@ get_missing_commit_check_level () { printf '%s' "$check_level" | tr 'A-Z' 'a-z' } -# Check if the user dropped some commits by mistake -# Behaviour determined by rebase.missingCommitsCheck. -# Check if there is an unrecognized command or a -# bad SHA-1 in a command. -check_todo_list () { - raise_error=f - - check_level=$(get_missing_commit_check_level) - - case "$check_level" in - warn|error) - # Get the SHA-1 of the commits - todo_list_to_sha_list <"$todo".backup >"$todo".oldsha1 - todo_list_to_sha_list <"$todo" >"$todo".newsha1 - - # Sort the SHA-1 and compare them - sort -u "$todo".oldsha1 >"$todo".oldsha1+ - mv "$todo".oldsha1+ "$todo".oldsha1 - sort -u "$todo".newsha1 >"$todo".newsha1+ - mv "$todo".newsha1+ "$todo".newsha1 - comm -2 -3 "$todo".oldsha1 "$todo".newsha1 >"$todo".miss - - # Warn about missing commits - if test -s "$todo".miss - then - test "$check_level" = error && raise_error=t +# Initiate an action. If the cannot be any +# further action it may exec a command +# or exit and not return. +# +# TODO: Consider a cleaner return model so it +# never exits and always return 0 if process +# is complete. +# +# Parameter 1 is the action to initiate. +# +# Returns 0 if the action was able to complete +# and if 1 if further processing is required. +initiate_action () { + case "$1" in + continue) + exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \ + --continue + ;; + skip) + git rerere clear + exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \ + --continue + ;; + edit-todo) + git stripspace --strip-comments <"$todo" >"$todo".new + mv -f "$todo".new "$todo" + collapse_todo_ids + append_todo_help + gettext " +You are editing the todo file of an ongoing interactive rebase. +To continue rebase after editing, run: + git rebase --continue - warn "Warning: some commits may have been dropped" \ - "accidentally." - warn "Dropped commits (newer to older):" +" | git stripspace --comment-lines >>"$todo" - # Make the list user-friendly and display - opt="--no-walk=sorted --format=oneline --abbrev-commit --stdin" - git rev-list $opt <"$todo".miss | warn_lines + git_sequence_editor "$todo" || + die "$(gettext "Could not execute editor")" + expand_todo_ids - warn "To avoid this message, use \"drop\" to" \ - "explicitly remove a commit." - warn - warn "Use 'git config rebase.missingCommitsCheck' to change" \ - "the level of warnings." - warn "The possible behaviours are: ignore, warn, error." - warn - fi + exit ;; - ignore) + show-current-patch) + exec git show REBASE_HEAD -- ;; *) - warn "Unrecognized setting $check_level for option" \ - "rebase.missingCommitsCheck. Ignoring." + return 1 # continue ;; esac +} - if ! check_bad_cmd_and_sha "$todo" - then - raise_error=t - fi +setup_reflog_action () { + comment_for_reflog start - if test $raise_error = t + if test ! -z "$switch_to" then - # Checkout before the first commit of the - # rebase: this way git rebase --continue - # will work correctly as it expects HEAD to be - # placed before the commit of the next action - checkout_onto + GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to" + output git checkout "$switch_to" -- || + die "$(eval_gettext "Could not checkout \$switch_to")" - warn "You can fix this with 'git rebase --edit-todo'." - die "Or you can abort the rebase with 'git rebase --abort'." + comment_for_reflog start fi } -# The whole contents of this file is run by dot-sourcing it from -# inside a shell function. It used to be that "return"s we see -# below were not inside any function, and expected to return -# to the function that dot-sourced us. -# -# However, FreeBSD /bin/sh misbehaves on such a construct and -# continues to run the statements that follow such a "return". -# As a work-around, we introduce an extra layer of a function -# here, and immediately call it after defining it. -git_rebase__interactive () { - -case "$action" in -continue) - # do we have anything to commit? - if git diff-index --cached --quiet HEAD -- - then - # Nothing to commit -- skip this commit - - test ! -f "$GIT_DIR"/CHERRY_PICK_HEAD || - rm "$GIT_DIR"/CHERRY_PICK_HEAD || - die "Could not remove CHERRY_PICK_HEAD" - else - if ! test -f "$author_script" - then - gpg_sign_opt_quoted=${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} - die "You have staged changes in your working tree. If these changes are meant to be -squashed into the previous commit, run: - - git commit --amend $gpg_sign_opt_quoted +init_basic_state () { + orig_head=$(git rev-parse --verify HEAD) || die "$(gettext "No HEAD?")" + mkdir -p "$state_dir" || die "$(eval_gettext "Could not create temporary \$state_dir")" + rm -f "$(git rev-parse --git-path REBASE_HEAD)" -If they are meant to go into a new commit, run: - - git commit $gpg_sign_opt_quoted - -In both case, once you're done, continue with: - - git rebase --continue -" - fi - . "$author_script" || - die "Error trying to find the author identity to amend commit" - if test -f "$amend" - then - current_head=$(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." - do_with_author git commit --amend --no-verify -F "$msg" -e \ - ${gpg_sign_opt:+"$gpg_sign_opt"} || - die "Could not commit staged changes." - else - do_with_author git commit --no-verify -F "$msg" -e \ - ${gpg_sign_opt:+"$gpg_sign_opt"} || - die "Could not commit staged changes." - fi - fi + : > "$state_dir"/interactive || die "$(gettext "Could not mark as interactive")" + write_basic_state +} - if test -r "$state_dir"/stopped-sha +init_revisions_and_shortrevisions () { + shorthead=$(git rev-parse --short $orig_head) + shortonto=$(git rev-parse --short $onto) + if test -z "$rebase_root" + # this is now equivalent to ! -z "$upstream" then - record_in_rewritten "$(cat "$state_dir"/stopped-sha)" + shortupstream=$(git rev-parse --short $upstream) + revisions=$upstream...$orig_head + shortrevisions=$shortupstream..$shorthead + else + revisions=$onto...$orig_head + shortrevisions=$shorthead + test -z "$squash_onto" || + echo "$squash_onto" >"$state_dir"/squash-onto fi +} - require_clean_work_tree "rebase" - do_rest - return 0 - ;; -skip) - git rerere clear +complete_action() { + test -s "$todo" || echo noop >> "$todo" + test -z "$autosquash" || git rebase--helper --rearrange-squash || exit + test -n "$cmd" && git rebase--helper --add-exec-commands "$cmd" - do_rest - return 0 - ;; -edit-todo) - git stripspace --strip-comments <"$todo" >"$todo".new - mv -f "$todo".new "$todo" - collapse_todo_ids - append_todo_help - git stripspace --comment-lines >>"$todo" <<\EOF + todocount=$(git stripspace --strip-comments <"$todo" | wc -l) + todocount=${todocount##* } -You are editing the todo file of an ongoing interactive rebase. -To continue rebase after editing, run: - git rebase --continue +cat >>"$todo" <<EOF +$comment_char $(eval_ngettext \ + "Rebase \$shortrevisions onto \$shortonto (\$todocount command)" \ + "Rebase \$shortrevisions onto \$shortonto (\$todocount commands)" \ + "$todocount") EOF + append_todo_help + gettext " + However, if you remove everything, the rebase will be aborted. - git_sequence_editor "$todo" || - die "Could not execute editor" - expand_todo_ids - - exit - ;; -esac - -git var GIT_COMMITTER_IDENT >/dev/null || - die "You need to set your committer info first" - -comment_for_reflog start - -if test ! -z "$switch_to" -then - GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to" - output git checkout "$switch_to" -- || - die "Could not checkout $switch_to" - - comment_for_reflog start -fi - -orig_head=$(git rev-parse --verify HEAD) || die "No HEAD?" -mkdir -p "$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 - 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= -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 -format=$(git config --get rebase.instructionFormat) -# the 'rev-list .. | sed' requires %m to parse; the instruction requires %H to parse -git rev-list $merges_option --format="%m%H ${format:-%s}" \ - --reverse --left-right --topo-order \ - $revisions ${restrict_revision+^$restrict_revision} | \ - sed -n "s/^>//p" | -while read -r sha1 rest -do + " | git stripspace --comment-lines >>"$todo" - if test -z "$keep_empty" && is_empty_commit $sha1 && ! is_merge_commit $sha1 + if test -z "$keep_empty" then - comment_out="$comment_char " - else - comment_out= + printf '%s\n' "$comment_char $(gettext "Note that empty commits are commented out")" >>"$todo" fi - if test t != "$preserve_merges" - then - printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo" - else - 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"/$p - then - preserve=f - fi - done - else - preserve=f - fi - if test f = "$preserve" - then - touch "$rewritten"/$sha1 - printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$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 $revisions --left-right --cherry-pick | \ - sed -n "s/^>//p" > "$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"/$rev && - ! sane_grep "$rev" "$state_dir"/not-cherry-picks >/dev/null - 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"/$rev - sha1=$(git rev-list -1 $rev) - sane_grep -v "^[a-z][a-z]* $sha1" <"$todo" > "${todo}2" ; mv "${todo}2" "$todo" - rm "$rewritten"/$rev - fi - done -fi - -test -s "$todo" || echo noop >> "$todo" -test -n "$autosquash" && rearrange_squash "$todo" -test -n "$cmd" && add_exec_commands "$todo" -todocount=$(git stripspace --strip-comments <"$todo" | wc -l) -todocount=${todocount##* } + has_action "$todo" || + return 2 -cat >>"$todo" <<EOF - -$comment_char Rebase $shortrevisions onto $shortonto ($todocount command(s)) -EOF -append_todo_help -git stripspace --comment-lines >>"$todo" <<\EOF - -However, if you remove everything, the rebase will be aborted. - -EOF + cp "$todo" "$todo".backup + collapse_todo_ids + git_sequence_editor "$todo" || + die_abort "$(gettext "Could not execute editor")" -if test -z "$keep_empty" -then - printf '%s\n' "$comment_char Note that empty commits are commented out" >>"$todo" -fi + has_action "$todo" || + return 2 + git rebase--helper --check-todo-list || { + ret=$? + checkout_onto + exit $ret + } -has_action "$todo" || - return 2 + expand_todo_ids -cp "$todo" "$todo".backup -collapse_todo_ids -git_sequence_editor "$todo" || - die_abort "Could not execute editor" + test -n "$force_rebase" || + onto="$(git rebase--helper --skip-unnecessary-picks)" || + die "Could not skip unnecessary pick commands" -has_action "$todo" || - return 2 + checkout_onto + require_clean_work_tree "rebase" + exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \ + --continue +} -check_todo_list +git_rebase__interactive () { + initiate_action "$action" + ret=$? + if test $ret = 0; then + return 0 + fi -expand_todo_ids + setup_reflog_action + init_basic_state -test -d "$rewritten" || test -n "$force_rebase" || skip_unnecessary_picks + init_revisions_and_shortrevisions -checkout_onto -do_rest + git rebase--helper --make-script ${keep_empty:+--keep-empty} \ + ${rebase_merges:+--rebase-merges} \ + ${rebase_cousins:+--rebase-cousins} \ + $revisions ${restrict_revision+^$restrict_revision} >"$todo" || + die "$(gettext "Could not generate todo list")" + complete_action } -# ... and then we call the whole thing. -git_rebase__interactive |