diff options
Diffstat (limited to 'git-rebase--interactive.sh')
| -rw-r--r-- | git-rebase--interactive.sh | 1016 |
1 files changed, 137 insertions, 879 deletions
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh index d47bd29593..299ded2137 100644 --- a/git-rebase--interactive.sh +++ b/git-rebase--interactive.sh @@ -13,83 +13,6 @@ # 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} -test -n "$strategy_opts" && -eval ' - for strategy_opt in '"$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 @@ -105,15 +28,6 @@ case "$comment_char" in ;; esac -warn () { - printf '%s\n' "$*" >&2 -} - -# Output the commit message for the specified commit. -commit_message () { - git cat-file commit "$1" | sed "1,/^$/d" -} - orig_reflog_action="$GIT_REFLOG_ACTION" comment_for_reflog () { @@ -125,43 +39,22 @@ comment_for_reflog () { esac } -last_count= -mark_action_done () { - sed -e 1q < "$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=$new_count - eval_gettext "Rebasing (\$new_count/\$total)"; printf "\r" - test -z "$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 "$done" -} - append_todo_help () { gettext " Commands: -p, pick = use commit -r, reword = use commit, but edit the commit message -e, edit = use commit, but stop for amending -s, squash = use commit, but meld into previous commit -f, fixup = like \"squash\", but discard this commit's log message -x, exec = run command (the rest of the line) using shell -d, drop = remove commit +p, pick <commit> = use commit +r, reword <commit> = use commit, but edit the commit message +e, edit <commit> = use commit, but stop for amending +s, squash <commit> = use commit, but meld into previous commit +f, fixup <commit> = like \"squash\", but discard this commit's log message +x, exec <command> = run command (the rest of the line) using shell +d, drop <commit> = remove commit +l, label <label> = label current HEAD with a name +t, reset <label> = reset HEAD to a label +m, merge [-C <commit> | -c <commit>] <label> [# <oneline>] +. create a merge commit using the original merge commit's +. message (or the oneline, if no original merge commit was +. specified). Use -c <commit> to reword the commit message. These lines can be re-ordered; they are executed from top to bottom. " | git stripspace --comment-lines >>"$todo" @@ -178,48 +71,6 @@ If you remove a line here THAT COMMIT WILL BE LOST. 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" - 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 "$gpg_sign_opt")} - warn "$(eval_gettext "\ -You can amend the commit now, with - - git commit --amend \$gpg_sign_opt_quoted - -Once you are satisfied with your changes, run - - git rebase --continue")" - warn - exit $2 -} - die_abort () { apply_autostash rm -rf "$state_dir" @@ -230,30 +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) || { - sha1=$1 - die "$(eval_gettext "\$sha1: 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 "$GIT_SEQUENCE_EDITOR" then @@ -267,456 +94,6 @@ git_sequence_editor () { eval "$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 $sha1 || die "$(eval_gettext "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 $allow_rerere_autoupdate \ - ${gpg_sign_opt:+$(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 "$state_dir"/current-commit || - die "$(gettext "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 $fast_forward in - t) - output warn "$(eval_gettext "Fast-forward to \$sha1")" - output git reset --hard $sha1 || - die "$(eval_gettext "Cannot fast-forward to \$sha1")" - ;; - f) - first_parent=$(expr "$new_parents" : ' \([^ ]*\)') - - if [ "$1" != "-n" ] - then - # detach HEAD to current parent - output git checkout $first_parent 2> /dev/null || - die "$(eval_gettext "Cannot move HEAD to \$first_parent")" - fi - - case "$new_parents" in - ' '*' '*) - test "a$1" = a-n && die "$(eval_gettext "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 ${gpg_sign_opt:+$(git rev-parse \ - --sq-quote "$gpg_sign_opt")} \ - $allow_rerere_autoupdate "$merge_args" \ - "$strategy_args" \ - -m $(git rev-parse --sq-quote "$msg_content") \ - "$new_parents" - then - printf "%s\n" "$msg_content" > "$GIT_DIR"/MERGE_MSG - die_with_patch $sha1 "$(eval_gettext "Error redoing merge \$sha1")" - fi - echo "$sha1 $(git rev-parse HEAD^0)" >> "$rewritten_list" - ;; - *) - output eval git cherry-pick $allow_rerere_autoupdate \ - ${gpg_sign_opt:+$(git rev-parse --sq-quote "$gpg_sign_opt")} \ - "$strategy_args" "$@" || - die_with_patch $sha1 "$(eval_gettext "Could not pick \$sha1")" - ;; - esac - ;; - esac -} - -this_nth_commit_message () { - n=$1 - eval_gettext "This is the commit message #\${n}:" -} - -skip_nth_commit_message () { - n=$1 - eval_gettext "The commit message #\${n} will be skipped:" -} - -update_squash_messages () { - if test -f "$squash_msg"; then - mv "$squash_msg" "$squash_msg".bak || exit - count=$(($(sed -n \ - -e "1s/^$comment_char[^0-9]*\([0-9][0-9]*\).*/\1/p" \ - -e "q" < "$squash_msg".bak)+1)) - { - printf '%s\n' "$comment_char $(eval_ngettext \ - "This is a combination of \$count commit." \ - "This is a combination of \$count commits." \ - $count)" - sed -e 1d -e '2,/^./{ - /^$/d - }' <"$squash_msg".bak - } >"$squash_msg" - else - commit_message HEAD >"$fixup_msg" || - die "$(eval_gettext "Cannot write \$fixup_msg")" - count=2 - { - printf '%s\n' "$comment_char $(gettext "This is a combination of 2 commits.")" - printf '%s\n' "$comment_char $(gettext "This is the 1st commit message:")" - echo - cat "$fixup_msg" - } >"$squash_msg" - fi - case $1 in - squash) - rm -f "$fixup_msg" - echo - printf '%s\n' "$comment_char $(this_nth_commit_message $count)" - echo - commit_message $2 - ;; - fixup) - echo - printf '%s\n' "$comment_char $(skip_nth_commit_message $count)" - 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() { - sha1=$1 - rest=$2 - mv "$squash_msg" "$msg" || exit - rm -f "$fixup_msg" - cp "$msg" "$GIT_DIR"/MERGE_MSG || exit - warn - warn "$(eval_gettext "Could not apply \$sha1... \$rest")" - die_with_patch $sha1 "" -} - -flush_rewritten_pending() { - test -s "$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 () { - sha1=$1 - rest=$2 - if test "$(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 $sha1 && - pick_one -n $sha1 && - git commit --allow-empty --allow-empty-message \ - --amend --no-post-rewrite -n -q -C $sha1 \ - ${gpg_sign_opt:+"$gpg_sign_opt"} || - die_with_patch $sha1 "$(eval_gettext "Could not apply \$sha1... \$rest")" - else - pick_one $sha1 || - die_with_patch $sha1 "$(eval_gettext "Could not apply \$sha1... \$rest")" - 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 "$(eval_gettext "\ -Could not amend commit after successfully picking \$sha1... \$rest -This is most likely due to an empty commit message, or the pre-commit hook -failed. If the pre-commit hook failed, you may need to resolve the issue before -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" - sha1_abbrev=$(git rev-parse --short $sha1) - warn "$(eval_gettext "Stopped at \$sha1_abbrev... \$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 "$done" || - die "$(eval_gettext "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 - eval_gettextln "Executing: \$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 "$(eval_gettext "Execution failed: \$rest")" - test "$dirty" = f || - warn "$(gettext "and made changes to the index and/or the working tree")" - - warn "$(gettext "\ -You can fix the problem, and then run - - git rebase --continue")" - warn - if test $status -eq 127 # command not found - then - status=1 - fi - exit "$status" - elif test "$dirty" = t - then - # TRANSLATORS: after these lines is a command to be issued by the user - warn "$(eval_gettext "\ -Execution succeeded: \$rest -but left changes to the index and/or the working tree -Commit or stash your changes, and then run - - git rebase --continue")" - warn - exit 1 - fi - ;; - *) - warn "$(eval_gettext "Unknown command: \$command \$sha1 \$rest")" - fixtodo="$(gettext "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 "$(eval_gettext "Successfully rebased and updated \$head_name.")" - - return 1 # not failure; just to break the do_rest loop -} - -# can only return 0, when the infinite loop breaks -do_rest () { - while : - do - do_next || break - done -} - expand_todo_ids() { git rebase--helper --expand-ids } @@ -739,236 +116,102 @@ get_missing_commit_check_level () { printf '%s' "$check_level" | tr 'A-Z' 'a-z' } -# 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. +# Initiate an action. If the cannot be any +# further action it may exec a command +# or exit and not return. # -# However, older (9.x) versions of FreeBSD /bin/sh misbehave on such a -# construct and continue 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 "$action" in -continue) - if test ! -d "$rewritten" - then - exec git rebase--helper ${force_rebase:+--no-ff} --continue - fi - # do we have anything to commit? - if git diff-index --cached --quiet HEAD -- - then - # Nothing to commit -- skip this commit - - test ! -f "$GIT_DIR"/CHERRY_PICK_HEAD || - rm "$GIT_DIR"/CHERRY_PICK_HEAD || - die "$(gettext "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 "$(eval_gettext "\ -You have staged changes in your working tree. -If these changes are meant to be -squashed into the previous commit, run: - - git commit --amend \$gpg_sign_opt_quoted - -If they are meant to go into a new commit, run: - - git commit \$gpg_sign_opt_quoted - -In both cases, once you're done, continue with: - - git rebase --continue -")" - fi - . "$author_script" || - die "$(gettext "Error trying to find the author identity to amend commit")" - if test -f "$amend" - then - current_head=$(git rev-parse --verify HEAD) - test "$current_head" = $(cat "$amend") || - die "$(gettext "\ -You have uncommitted changes in your working tree. Please commit them -first and then run 'git rebase --continue' again.")" - do_with_author git commit --amend --no-verify -F "$msg" -e \ - ${gpg_sign_opt:+"$gpg_sign_opt"} || - die "$(gettext "Could not commit staged changes.")" - else - do_with_author git commit --no-verify -F "$msg" -e \ - ${gpg_sign_opt:+"$gpg_sign_opt"} || - die "$(gettext "Could not commit staged changes.")" - fi - fi - - if test -r "$state_dir"/stopped-sha - then - record_in_rewritten "$(cat "$state_dir"/stopped-sha)" - fi - - require_clean_work_tree "rebase" - do_rest - return 0 - ;; -skip) - git rerere clear - - if test ! -d "$rewritten" - then - exec git rebase--helper ${force_rebase:+--no-ff} --continue - fi - do_rest - return 0 - ;; -edit-todo) - git stripspace --strip-comments <"$todo" >"$todo".new - mv -f "$todo".new "$todo" - collapse_todo_ids - append_todo_help - gettext " +# 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 "$todo" + collapse_todo_ids + append_todo_help + gettext " You are editing the todo file of an ongoing interactive rebase. To continue rebase after editing, run: git rebase --continue " | git stripspace --comment-lines >>"$todo" - git_sequence_editor "$todo" || - die "$(gettext "Could not execute editor")" - expand_todo_ids + git_sequence_editor "$todo" || + die "$(gettext "Could not execute editor")" + expand_todo_ids - exit - ;; -esac + exit + ;; + show-current-patch) + exec git show REBASE_HEAD -- + ;; + *) + return 1 # continue + ;; + esac +} -comment_for_reflog start +setup_reflog_action () { + 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 "$(eval_gettext "Could not checkout \$switch_to")" + if test ! -z "$switch_to" + then + GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $switch_to" + output git checkout "$switch_to" -- || + die "$(eval_gettext "Could not checkout \$switch_to")" - comment_for_reflog start -fi + comment_for_reflog start + fi +} -orig_head=$(git rev-parse --verify HEAD) || die "$(gettext "No HEAD?")" -mkdir -p "$state_dir" || die "$(eval_gettext "Could not create temporary \$state_dir")" +init_basic_state () { + orig_head=$(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)" -: > "$state_dir"/interactive || die "$(gettext "Could not mark as interactive")" -write_basic_state -if test t = "$preserve_merges" -then + : > "$state_dir"/interactive || die "$(gettext "Could not mark as interactive")" + write_basic_state +} + +init_revisions_and_shortrevisions () { + shorthead=$(git rev-parse --short $orig_head) + shortonto=$(git rev-parse --short $onto) if test -z "$rebase_root" + # this is now equivalent to ! -z "$upstream" then - mkdir "$rewritten" && - for c in $(git merge-base --all $orig_head $upstream) - do - echo $onto > "$rewritten"/$c || - die "$(gettext "Could not init rewritten commits")" - done + shortupstream=$(git rev-parse --short $upstream) + revisions=$upstream...$orig_head + shortrevisions=$shortupstream..$shorthead else - mkdir "$rewritten" && - echo $onto > "$rewritten"/root || - die "$(gettext "Could not init rewritten commits")" + revisions=$onto...$orig_head + shortrevisions=$shorthead + test -z "$squash_onto" || + echo "$squash_onto" >"$state_dir"/squash-onto fi - # No cherry-pick because our first pass is to determine - # parents to rewrite and skipping dropped commits would - # prematurely end our probe - merges_option= -else - merges_option="--no-merges --cherry-pick" -fi - -shorthead=$(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 -if test t != "$preserve_merges" -then - git rebase--helper --make-script ${keep_empty:+--keep-empty} \ - $revisions ${restrict_revision+^$restrict_revision} >"$todo" || - die "$(gettext "Could not generate todo list")" -else - 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 - - if test -z "$keep_empty" && is_empty_commit $sha1 && ! is_merge_commit $sha1 - then - comment_out="$comment_char " - else - comment_out= - fi - - 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 - done -fi - -# 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 >> "$todo" -test -z "$autosquash" || git rebase--helper --rearrange-squash || exit -test -n "$cmd" && git rebase--helper --add-exec-commands "$cmd" +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 "$cmd" -todocount=$(git stripspace --strip-comments <"$todo" | wc -l) -todocount=${todocount##* } + todocount=$(git stripspace --strip-comments <"$todo" | wc -l) + todocount=${todocount##* } cat >>"$todo" <<EOF @@ -977,49 +220,64 @@ $comment_char $(eval_ngettext \ "Rebase \$shortrevisions onto \$shortonto (\$todocount commands)" \ "$todocount") EOF -append_todo_help -gettext " -However, if you remove everything, the rebase will be aborted. + append_todo_help + gettext " + However, if you remove everything, the rebase will be aborted. -" | git stripspace --comment-lines >>"$todo" + " | git stripspace --comment-lines >>"$todo" -if test -z "$keep_empty" -then - printf '%s\n' "$comment_char $(gettext "Note that empty commits are commented out")" >>"$todo" -fi + if test -z "$keep_empty" + then + printf '%s\n' "$comment_char $(gettext "Note that empty commits are commented out")" >>"$todo" + fi -has_action "$todo" || - return 2 + has_action "$todo" || + return 2 -cp "$todo" "$todo".backup -collapse_todo_ids -git_sequence_editor "$todo" || - die_abort "$(gettext "Could not execute editor")" + cp "$todo" "$todo".backup + collapse_todo_ids + git_sequence_editor "$todo" || + die_abort "$(gettext "Could not execute editor")" -has_action "$todo" || - return 2 + has_action "$todo" || + return 2 + + git rebase--helper --check-todo-list || { + ret=$? + checkout_onto + exit $ret + } + + expand_todo_ids + + test -n "$force_rebase" || + onto="$(git rebase--helper --skip-unnecessary-picks)" || + die "Could not skip unnecessary pick commands" -git rebase--helper --check-todo-list || { - ret=$? checkout_onto - exit $ret + require_clean_work_tree "rebase" + exec git rebase--helper ${force_rebase:+--no-ff} $allow_empty_message \ + --continue } -expand_todo_ids +git_rebase__interactive () { + initiate_action "$action" + ret=$? + if test $ret = 0; then + return 0 + fi + + setup_reflog_action + init_basic_state -test -d "$rewritten" || test -n "$force_rebase" || -onto="$(git rebase--helper --skip-unnecessary-picks)" || -die "Could not skip unnecessary pick commands" + init_revisions_and_shortrevisions -checkout_onto -if test -z "$rebase_root" && test ! -d "$rewritten" -then - require_clean_work_tree "rebase" - exec git rebase--helper ${force_rebase:+--no-ff} --continue -fi -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 |