diff options
Diffstat (limited to 'git-rebase--interactive.sh')
| -rw-r--r-- | git-rebase--interactive.sh | 286 |
1 files changed, 257 insertions, 29 deletions
diff --git a/git-rebase--interactive.sh b/git-rebase--interactive.sh index f267d8b6c..30edb1792 100644 --- a/git-rebase--interactive.sh +++ b/git-rebase--interactive.sh @@ -77,6 +77,10 @@ amend="$state_dir"/amend rewritten_list="$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= if test -n "$do_merge" then @@ -132,6 +136,16 @@ mark_action_done () { fi } +# Put the last action marked done at the beginning of the todo list +# again. If there has not been an action marked done yet, leave the list of +# items on the todo list unchanged. +reschedule_last_action () { + tail -n 1 "$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 @@ -142,11 +156,21 @@ Commands: 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 These lines can be re-ordered; they are executed from top to bottom. +EOF + if test $(get_missing_commit_check_level) = error + then + git stripspace --comment-lines >>"$todo" <<\EOF +Do not remove any line. Use 'drop' explicitly to remove a commit. +EOF + else + git stripspace --comment-lines >>"$todo" <<\EOF If you remove a line here THAT COMMIT WILL BE LOST. EOF + fi } make_patch () { @@ -252,6 +276,12 @@ pick_one () { 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 $ret } pick_one_preserving_merges () { @@ -486,10 +516,14 @@ do_pick () { } do_next () { - rm -f "$msg" "$author_script" "$amend" || exit + rm -f "$msg" "$author_script" "$amend" "$state_dir"/stopped-sha || exit read -r command sha1 rest < "$todo" case "$command" in - "$comment_char"*|''|noop) + "$comment_char"*|''|noop|drop|d) + mark_action_done + ;; + "$cr") + # Work around CR left by "read" (e.g. with Git for Windows' Bash). mark_action_done ;; pick|p) @@ -576,9 +610,6 @@ do_next () { read -r command rest < "$todo" mark_action_done printf 'Executing: %s\n' "$rest" - # "exec" command doesn't take a sha1 in the todo-list. - # => can't just use $sha1 here. - git rev-parse --verify HEAD > "$state_dir"/stopped-sha ${SHELL:-@SHELL_PATH@} -c "$rest" # Actual execution status=$? # Run in subshell because require_clean_work_tree can die. @@ -642,9 +673,9 @@ do_next () { git notes copy --for-rewrite=rebase < "$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" + 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." @@ -706,8 +737,8 @@ transform_todo_ids () { # that do not have a SHA-1 at the beginning of $rest. ;; *) - sha1=$(git rev-parse --verify --quiet "$@" ${rest%% *}) && - rest="$sha1 ${rest#* }" + sha1=$(git rev-parse --verify --quiet "$@" ${rest%%[ ]*}) && + rest="$sha1 ${rest#*[ ]}" ;; esac printf '%s\n' "$command${rest:+ }$rest" @@ -727,10 +758,15 @@ collapse_todo_ids() { # "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%%!*}" @@ -772,6 +808,7 @@ rearrange_squash () { *" $sha1 "*) continue ;; esac printf '%s\n' "$pick $sha1 $message" + test -z "${format}" || message=$(git log -n 1 --format="%s" ${sha1}) used="$used$sha1 " while read -r squash action msg_prefix msg_content do @@ -789,8 +826,13 @@ rearrange_squash () { case "$message" in "$msg_content"*) emit=1;; esac ;; esac if test $emit = 1; then - real_prefix=$(echo "$msg_prefix" | sed "s/,/! /g") - printf '%s\n' "$action $squash ${real_prefix}$msg_content" + 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" @@ -820,6 +862,180 @@ add_exec_commands () { 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 +} + +# 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" + git update-ref ORIG_HEAD $orig_head +} + +get_missing_commit_check_level () { + check_level=$(git config --get rebase.missingCommitsCheck) + check_level=${check_level:-ignore} + # Don't be case sensitive + printf '%s' "$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 + + warn "Warning: some commits may have been dropped" \ + "accidentally." + warn "Dropped commits (newer to older):" + + # Make the list user-friendly and display + opt="--no-walk=sorted --format=oneline --abbrev-commit --stdin" + git rev-list $opt <"$todo".miss | warn_lines + + 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 + ;; + ignore) + ;; + *) + warn "Unrecognized setting $check_level for option" \ + "rebase.missingCommitsCheck. Ignoring." + ;; + esac + + if ! check_bad_cmd_and_sha "$todo" + then + raise_error=t + fi + + if test $raise_error = t + then + # Checkout before the first commit of the + # rebase: this way git rebase --continue + # will work correctly as it expects HEAD to be + # placed before the commit of the next action + checkout_onto + + warn "You can fix this with 'git rebase --edit-todo'." + die "Or you can abort the rebase with 'git rebase --abort'." + fi +} + # The whole contents of this file is run by dot-sourcing it from # inside a shell function. It used to be that "return"s we see # below were not inside any function, and expected to return @@ -836,7 +1052,11 @@ continue) # do we have anything to commit? if git diff-index --cached --quiet HEAD -- then - : Nothing to commit -- skip this + # Nothing to commit -- skip this commit + + test ! -f "$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 @@ -874,7 +1094,10 @@ first and then run 'git rebase --continue' again." fi fi - record_in_rewritten "$(cat "$state_dir"/stopped-sha)" + if test -r "$state_dir"/stopped-sha + then + record_in_rewritten "$(cat "$state_dir"/stopped-sha)" + fi require_clean_work_tree "rebase" do_rest @@ -961,14 +1184,16 @@ else revisions=$onto...$orig_head shortrevisions=$shorthead fi -git rev-list $merges_option --pretty=oneline --abbrev-commit \ - --abbrev=7 --reverse --left-right --topo-order \ - $revisions | \ +format=$(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 shortsha1 rest +while read -r sha1 rest do - if test -z "$keep_empty" && is_empty_commit $shortsha1 && ! is_merge_commit $shortsha1 + if test -z "$keep_empty" && is_empty_commit $sha1 && ! is_merge_commit $sha1 then comment_out="$comment_char " else @@ -977,9 +1202,8 @@ do if test t != "$preserve_merges" then - printf '%s\n' "${comment_out}pick $shortsha1 $rest" >>"$todo" + printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo" else - sha1=$(git rev-parse $shortsha1) if test -z "$rebase_root" then preserve=t @@ -996,7 +1220,7 @@ do if test f = "$preserve" then touch "$rewritten"/$sha1 - printf '%s\n' "${comment_out}pick $shortsha1 $rest" >>"$todo" + printf '%s\n' "${comment_out}pick $sha1 $rest" >>"$todo" fi fi done @@ -1013,15 +1237,15 @@ then git rev-list $revisions | while read rev do - if test -f "$rewritten"/$rev -a "$(sane_grep "$rev" "$state_dir"/not-cherry-picks)" = "" + if test -f "$rewritten"/$rev && test "$(sane_grep "$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" "$todo" + sha1=$(git rev-list -1 $rev) + sane_grep -v "^[a-z][a-z]* $sha1" <"$todo" > "${todo}2" ; mv "${todo}2" "$todo" rm "$rewritten"/$rev fi done @@ -1031,9 +1255,12 @@ test -s "$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##* } + cat >>"$todo" <<EOF -$comment_char Rebase $shortrevisions onto $shortonto +$comment_char Rebase $shortrevisions onto $shortonto ($todocount command(s)) EOF append_todo_help git stripspace --comment-lines >>"$todo" <<\EOF @@ -1052,19 +1279,20 @@ has_action "$todo" || return 2 cp "$todo" "$todo".backup +collapse_todo_ids git_sequence_editor "$todo" || die_abort "Could not execute editor" has_action "$todo" || return 2 +check_todo_list + expand_todo_ids test -d "$rewritten" || test -n "$force_rebase" || skip_unnecessary_picks -GIT_REFLOG_ACTION="$GIT_REFLOG_ACTION: checkout $onto_name" -output git checkout $onto || die_abort "could not detach HEAD" -git update-ref ORIG_HEAD $orig_head +checkout_onto do_rest } |