diff options
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | Documentation/git-rebase.txt | 51 | ||||
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | builtin/rebase.c | 138 | ||||
| -rw-r--r-- | git-rebase--preserve-merges.sh | 1057 |
5 files changed, 11 insertions, 1238 deletions
diff --git a/.gitignore b/.gitignore index 311841f9be..98d6275b20 100644 --- a/.gitignore +++ b/.gitignore @@ -125,7 +125,6 @@ /git-range-diff /git-read-tree /git-rebase -/git-rebase--preserve-merges /git-receive-pack /git-reflog /git-remote diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index 55af6fd24e..1382dc6f00 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -525,29 +525,12 @@ i.e. commits that would be excluded by linkgit:git-log[1]'s the `rebase-cousins` mode is turned on, such commits are instead rebased onto `<upstream>` (or `<onto>`, if specified). + -The `--rebase-merges` mode is similar in spirit to the deprecated -`--preserve-merges` but works with interactive rebases, -where commits can be reordered, inserted and dropped at will. -+ It is currently only possible to recreate the merge commits using the `recursive` merge strategy; Different merge strategies can be used only via explicit `exec git merge -s <strategy> [...]` commands. + See also REBASING MERGES and INCOMPATIBLE OPTIONS below. --p:: ---preserve-merges:: - [DEPRECATED: use `--rebase-merges` instead] Recreate merge commits - instead of flattening the history by replaying commits a merge commit - introduces. Merge conflict resolutions or manual amendments to merge - commits are not preserved. -+ -This uses the `--interactive` machinery internally, but combining it -with the `--interactive` option explicitly is generally not a good -idea unless you know what you are doing (see BUGS below). -+ -See also INCOMPATIBLE OPTIONS below. - -x <cmd>:: --exec <cmd>:: Append "exec <cmd>" after each line creating a commit in the @@ -579,9 +562,6 @@ See also INCOMPATIBLE OPTIONS below. the root commit(s) on a branch. When used with --onto, it will skip changes already contained in <newbase> (instead of <upstream>) whereas without --onto it will operate on every change. - When used together with both --onto and --preserve-merges, - 'all' root commits will be rewritten to have <newbase> as parent - instead. + See also INCOMPATIBLE OPTIONS below. @@ -643,7 +623,6 @@ are incompatible with the following options: * --allow-empty-message * --[no-]autosquash * --rebase-merges - * --preserve-merges * --interactive * --exec * --no-keep-empty @@ -654,13 +633,6 @@ are incompatible with the following options: In addition, the following pairs of options are incompatible: - * --preserve-merges and --interactive - * --preserve-merges and --signoff - * --preserve-merges and --rebase-merges - * --preserve-merges and --empty= - * --preserve-merges and --ignore-whitespace - * --preserve-merges and --committer-date-is-author-date - * --preserve-merges and --ignore-date * --keep-base and --onto * --keep-base and --root * --fork-point and --root @@ -1274,29 +1246,6 @@ CONFIGURATION include::config/rebase.txt[] include::config/sequencer.txt[] -BUGS ----- -The todo list presented by the deprecated `--preserve-merges --interactive` -does not represent the topology of the revision graph (use `--rebase-merges` -instead). Editing commits and rewording their commit messages should work -fine, but attempts to reorder commits tend to produce counterintuitive results. -Use `--rebase-merges` in such scenarios instead. - -For example, an attempt to rearrange ------------- -1 --- 2 --- 3 --- 4 --- 5 ------------- -to ------------- -1 --- 2 --- 4 --- 3 --- 5 ------------- -by moving the "pick 4" line will result in the following history: ------------- - 3 - / -1 --- 2 --- 4 --- 5 ------------- - GIT --- Part of the linkgit:git[1] suite @@ -616,7 +616,6 @@ SCRIPT_SH += git-submodule.sh SCRIPT_SH += git-web--browse.sh SCRIPT_LIB += git-mergetool--lib -SCRIPT_LIB += git-rebase--preserve-merges SCRIPT_LIB += git-sh-i18n SCRIPT_LIB += git-sh-setup @@ -2649,7 +2648,6 @@ XGETTEXT_FLAGS_PERL = $(XGETTEXT_FLAGS) --language=Perl \ --keyword=__ --keyword=N__ --keyword="__n:1,2" LOCALIZED_C = $(C_OBJ:o=c) $(LIB_H) $(GENERATED_H) LOCALIZED_SH = $(SCRIPT_SH) -LOCALIZED_SH += git-rebase--preserve-merges.sh LOCALIZED_SH += git-sh-setup.sh LOCALIZED_PERL = $(SCRIPT_PERL) diff --git a/builtin/rebase.c b/builtin/rebase.c index 33e0961900..5f8d9f89ba 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -48,8 +48,7 @@ static GIT_PATH_FUNC(merge_dir, "rebase-merge") enum rebase_type { REBASE_UNSPECIFIED = -1, REBASE_APPLY, - REBASE_MERGE, - REBASE_PRESERVE_MERGES + REBASE_MERGE }; enum empty_type { @@ -571,8 +570,7 @@ int cmd_rebase__interactive(int argc, const char **argv, const char *prefix) static int is_merge(struct rebase_options *opts) { - return opts->type == REBASE_MERGE || - opts->type == REBASE_PRESERVE_MERGES; + return opts->type == REBASE_MERGE; } static void imply_merge(struct rebase_options *opts, const char *option) @@ -582,7 +580,6 @@ static void imply_merge(struct rebase_options *opts, const char *option) die(_("%s requires the merge backend"), option); break; case REBASE_MERGE: - case REBASE_PRESERVE_MERGES: break; default: opts->type = REBASE_MERGE; /* implied */ @@ -773,17 +770,6 @@ static struct commit *peel_committish(const char *name) return (struct commit *)peel_to_type(name, 0, obj, OBJ_COMMIT); } -static void add_var(struct strbuf *buf, const char *name, const char *value) -{ - if (!value) - strbuf_addf(buf, "unset %s; ", name); - else { - strbuf_addf(buf, "%s=", name); - sq_quote_buf(buf, value); - strbuf_addstr(buf, "; "); - } -} - static int move_to_original_branch(struct rebase_options *opts) { struct strbuf orig_head_reflog = STRBUF_INIT, head_reflog = STRBUF_INIT; @@ -940,10 +926,7 @@ static int run_am(struct rebase_options *opts) static int run_specific_rebase(struct rebase_options *opts, enum action action) { - const char *argv[] = { NULL, NULL }; - struct strbuf script_snippet = STRBUF_INIT, buf = STRBUF_INIT; int status; - const char *backend, *backend_func; if (opts->type == REBASE_MERGE) { /* Run sequencer-based rebase */ @@ -960,87 +943,11 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action) } status = run_sequencer_rebase(opts, action); - goto finished_rebase; - } - - if (opts->type == REBASE_APPLY) { + } else if (opts->type == REBASE_APPLY) status = run_am(opts); - goto finished_rebase; - } - - add_var(&script_snippet, "GIT_DIR", absolute_path(get_git_dir())); - add_var(&script_snippet, "state_dir", opts->state_dir); - - add_var(&script_snippet, "upstream_name", opts->upstream_name); - add_var(&script_snippet, "upstream", opts->upstream ? - oid_to_hex(&opts->upstream->object.oid) : NULL); - add_var(&script_snippet, "head_name", - opts->head_name ? opts->head_name : "detached HEAD"); - add_var(&script_snippet, "orig_head", oid_to_hex(&opts->orig_head)); - add_var(&script_snippet, "onto", opts->onto ? - oid_to_hex(&opts->onto->object.oid) : NULL); - add_var(&script_snippet, "onto_name", opts->onto_name); - add_var(&script_snippet, "revisions", opts->revisions); - add_var(&script_snippet, "restrict_revision", opts->restrict_revision ? - oid_to_hex(&opts->restrict_revision->object.oid) : NULL); - sq_quote_argv_pretty(&buf, opts->git_am_opts.v); - add_var(&script_snippet, "git_am_opt", buf.buf); - strbuf_release(&buf); - add_var(&script_snippet, "verbose", - opts->flags & REBASE_VERBOSE ? "t" : ""); - add_var(&script_snippet, "diffstat", - opts->flags & REBASE_DIFFSTAT ? "t" : ""); - add_var(&script_snippet, "force_rebase", - opts->flags & REBASE_FORCE ? "t" : ""); - if (opts->switch_to) - add_var(&script_snippet, "switch_to", opts->switch_to); - add_var(&script_snippet, "action", opts->action ? opts->action : ""); - add_var(&script_snippet, "signoff", opts->signoff ? "--signoff" : ""); - add_var(&script_snippet, "allow_rerere_autoupdate", - opts->allow_rerere_autoupdate ? - opts->allow_rerere_autoupdate == RERERE_AUTOUPDATE ? - "--rerere-autoupdate" : "--no-rerere-autoupdate" : ""); - add_var(&script_snippet, "keep_empty", opts->keep_empty ? "yes" : ""); - add_var(&script_snippet, "autosquash", opts->autosquash ? "t" : ""); - add_var(&script_snippet, "gpg_sign_opt", opts->gpg_sign_opt); - add_var(&script_snippet, "cmd", opts->cmd); - add_var(&script_snippet, "allow_empty_message", - opts->allow_empty_message ? "--allow-empty-message" : ""); - add_var(&script_snippet, "rebase_merges", - opts->rebase_merges ? "t" : ""); - add_var(&script_snippet, "rebase_cousins", - opts->rebase_cousins ? "t" : ""); - add_var(&script_snippet, "strategy", opts->strategy); - add_var(&script_snippet, "strategy_opts", opts->strategy_opts); - add_var(&script_snippet, "rebase_root", opts->root ? "t" : ""); - add_var(&script_snippet, "squash_onto", - opts->squash_onto ? oid_to_hex(opts->squash_onto) : ""); - add_var(&script_snippet, "git_format_patch_opt", - opts->git_format_patch_opt.buf); - - if (is_merge(opts) && - !(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) { - strbuf_addstr(&script_snippet, - "GIT_SEQUENCE_EDITOR=:; export GIT_SEQUENCE_EDITOR; "); - opts->autosquash = 0; - } - - switch (opts->type) { - case REBASE_PRESERVE_MERGES: - backend = "git-rebase--preserve-merges"; - backend_func = "git_rebase__preserve_merges"; - break; - default: + else BUG("Unhandled rebase type %d", opts->type); - break; - } - - strbuf_addf(&script_snippet, - ". git-sh-setup && . %s && %s", backend, backend_func); - argv[0] = script_snippet.buf; - status = run_command_v_opt(argv, RUN_USING_SHELL); -finished_rebase: if (opts->dont_finish_rebase) ; /* do nothing */ else if (opts->type == REBASE_MERGE) @@ -1058,8 +965,6 @@ finished_rebase: die("Nothing to do"); } - strbuf_release(&script_snippet); - return status ? -1 : 0; } @@ -1313,6 +1218,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) char *squash_onto_name = NULL; int reschedule_failed_exec = -1; int allow_preemptive_ff = 1; + int preserve_merges_selected = 0; struct option builtin_rebase_options[] = { OPT_STRING(0, "onto", &options.onto_name, N_("revision"), @@ -1377,10 +1283,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) N_("let the user edit the list of commits to rebase"), PARSE_OPT_NOARG | PARSE_OPT_NONEG, parse_opt_interactive), - OPT_SET_INT_F('p', "preserve-merges", &options.type, + OPT_SET_INT_F('p', "preserve-merges", &preserve_merges_selected, N_("(DEPRECATED) try to recreate merges instead of " "ignoring them"), - REBASE_PRESERVE_MERGES, PARSE_OPT_HIDDEN), + 1, PARSE_OPT_HIDDEN), OPT_RERERE_AUTOUPDATE(&options.allow_rerere_autoupdate), OPT_CALLBACK_F(0, "empty", &options, "{drop,keep,ask}", N_("how to handle commits that become empty"), @@ -1448,8 +1354,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) strbuf_reset(&buf); strbuf_addf(&buf, "%s/rewritten", merge_dir()); if (is_directory(buf.buf)) { - options.type = REBASE_PRESERVE_MERGES; - options.flags |= REBASE_INTERACTIVE_EXPLICIT; + die("`rebase -p` is no longer supported"); } else { strbuf_reset(&buf); strbuf_addf(&buf, "%s/interactive", merge_dir()); @@ -1470,6 +1375,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) builtin_rebase_options, builtin_rebase_usage, 0); + if (preserve_merges_selected) + die(_("--preserve-merges was replaced by --rebase-merges")); + if (action != ACTION_NONE && total_argc != 2) { usage_with_options(builtin_rebase_usage, builtin_rebase_options); @@ -1479,10 +1387,6 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) usage_with_options(builtin_rebase_usage, builtin_rebase_options); - if (options.type == REBASE_PRESERVE_MERGES) - warning(_("git rebase --preserve-merges is deprecated. " - "Use --rebase-merges instead.")); - if (keep_base) { if (options.onto_name) die(_("cannot combine '--keep-base' with '--onto'")); @@ -1728,7 +1632,6 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) case REBASE_APPLY: die(_("--strategy requires --merge or --interactive")); case REBASE_MERGE: - case REBASE_PRESERVE_MERGES: /* compatible */ break; case REBASE_UNSPECIFIED: @@ -1780,7 +1683,6 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) switch (options.type) { case REBASE_MERGE: - case REBASE_PRESERVE_MERGES: options.state_dir = merge_dir(); break; case REBASE_APPLY: @@ -1805,28 +1707,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) options.reschedule_failed_exec = reschedule_failed_exec; if (options.signoff) { - if (options.type == REBASE_PRESERVE_MERGES) - die("cannot combine '--signoff' with " - "'--preserve-merges'"); strvec_push(&options.git_am_opts, "--signoff"); options.flags |= REBASE_FORCE; } - if (options.type == REBASE_PRESERVE_MERGES) { - /* - * Note: incompatibility with --signoff handled in signoff block above - * Note: incompatibility with --interactive is just a strong warning; - * git-rebase.txt caveats with "unless you know what you are doing" - */ - if (options.rebase_merges) - die(_("cannot combine '--preserve-merges' with " - "'--rebase-merges'")); - - if (options.reschedule_failed_exec) - die(_("error: cannot combine '--preserve-merges' with " - "'--reschedule-failed-exec'")); - } - if (!options.root) { if (argc < 1) { struct branch *branch; diff --git a/git-rebase--preserve-merges.sh b/git-rebase--preserve-merges.sh deleted file mode 100644 index b9c71d2a71..0000000000 --- a/git-rebase--preserve-merges.sh +++ /dev/null @@ -1,1057 +0,0 @@ -# This shell script fragment is sourced by git-rebase to implement its -# preserve-merges mode. -# -# Copyright (c) 2006 Johannes E. Schindelin -# -# 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 $done. -todo="$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") - -resolvemsg=" -$(gettext 'Resolve all conflicts manually, mark them as resolved with -"git add/rm <conflicted_files>", then run "git rebase --continue". -You can instead skip this commit: run "git rebase --skip". -To abort and get back to the state before "git rebase", run "git rebase --abort".') -" - -write_basic_state () { - echo "$head_name" > "$state_dir"/head-name && - echo "$onto" > "$state_dir"/onto && - echo "$orig_head" > "$state_dir"/orig-head && - test t = "$GIT_QUIET" && : > "$state_dir"/quiet - test t = "$verbose" && : > "$state_dir"/verbose - test -n "$strategy" && echo "$strategy" > "$state_dir"/strategy - test -n "$strategy_opts" && echo "$strategy_opts" > \ - "$state_dir"/strategy_opts - test -n "$allow_rerere_autoupdate" && echo "$allow_rerere_autoupdate" > \ - "$state_dir"/allow_rerere_autoupdate - test -n "$gpg_sign_opt" && echo "$gpg_sign_opt" > "$state_dir"/gpg_sign_opt - test -n "$signoff" && echo "$signoff" >"$state_dir"/signoff - test -n "$reschedule_failed_exec" && : > "$state_dir"/reschedule-failed-exec -} - -apply_autostash () { - if test -f "$state_dir/autostash" - then - stash_sha1=$(cat "$state_dir/autostash") - if git stash apply $stash_sha1 >/dev/null 2>&1 - then - echo "$(gettext 'Applied autostash.')" >&2 - else - git stash store -m "autostash" -q $stash_sha1 || - die "$(eval_gettext "Cannot store \$stash_sha1")" - gettext 'Applying autostash resulted in conflicts. -Your changes are safe in the stash. -You can run "git stash pop" or "git stash drop" at any time. -' >&2 - fi - fi -} - -output () { - case "$verbose" in - '') - output=$("$@" 2>&1 ) - status=$? - test $status != 0 && printf "%s\n" "$output" - return $status - ;; - *) - "$@" - ;; - esac -} - -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 - -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 - -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="$GIT_REFLOG_ACTION" - -comment_for_reflog () { - case "$orig_reflog_action" in - ''|rebase*) - GIT_REFLOG_ACTION="rebase -i ($1)" - export GIT_REFLOG_ACTION - ;; - esac -} - -last_count= -mark_action_done () { - sed -e 1q < "$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 -} - -append_todo_help () { - gettext " -Commands: -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 <commit> = 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" - - if test $(get_missing_commit_check_level) = error - then - gettext " -Do not remove any line. Use 'drop' explicitly to remove a commit. -" | git stripspace --comment-lines >>"$todo" - else - gettext " -If you remove a line here THAT COMMIT WILL BE LOST. -" | 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 - git update-ref REBASE_HEAD "$1" - make_patch "$1" - die "$2" -} - -exit_with_patch () { - echo "$1" > "$state_dir"/stopped-sha - git update-ref REBASE_HEAD "$1" - 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" - die "$1" -} - -has_action () { - test -n "$(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 "$GIT_SEQUENCE_EDITOR" - then - GIT_SEQUENCE_EDITOR="$(git config sequence.editor)" - if [ -z "$GIT_SEQUENCE_EDITOR" ] - then - GIT_SEQUENCE_EDITOR="$(git var GIT_EDITOR)" || return $? - fi - fi - - eval "$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 "$sha1" - then - empty_args="--allow-empty" - fi - - pick_one_preserving_merges "$@" -} - -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 && 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 - - 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 \ - $allow_empty_message \ - ${gpg_sign_opt:+$(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 $signoff && - pick_one -n $sha1 && - git commit --allow-empty --allow-empty-message \ - --amend --no-post-rewrite -n -q -C $sha1 $signoff \ - ${gpg_sign_opt:+"$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"} \ - $allow_empty_message || { - warn "$(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"} $allow_empty_message || - 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"} $allow_empty_message || - 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"} $allow_empty_message || - 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--interactive --expand-ids -} - -collapse_todo_ids() { - git rebase--interactive --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 $onto || die_abort "$(gettext "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' -} - -# 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 "$1" in - continue) - # do we have anything to commit? - if git diff-index --cached --quiet HEAD -- - then - # Nothing to commit -- skip this commit - - test ! -f "$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"} $allow_empty_message || - die "$(gettext "Could not commit staged changes.")" - else - do_with_author git commit --no-verify -F "$msg" -e \ - ${gpg_sign_opt:+"$gpg_sign_opt"} $allow_empty_message || - die "$(gettext "Could not commit staged changes.")" - fi - fi - - if test -r "$state_dir"/stopped-sha - then - record_in_rewritten "$(cat "$state_dir"/stopped-sha)" - fi - - require_clean_work_tree "rebase" - do_rest - return 0 - ;; - skip) - git rerere clear - do_rest - return 0 - ;; - edit-todo) - git stripspace --strip-comments <"$todo" >"$todo".new - mv -f "$todo".new "$todo" - collapse_todo_ids - append_todo_help - gettext " -You are editing the todo file of an ongoing interactive rebase. -To continue rebase after editing, run: - git rebase --continue - -" | git stripspace --comment-lines >>"$todo" - - git_sequence_editor "$todo" || - die "$(gettext "Could not execute editor")" - expand_todo_ids - - exit - ;; - show-current-patch) - exec git show REBASE_HEAD -- - ;; - *) - return 1 # continue - ;; - esac -} - -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 "$(eval_gettext "Could not checkout \$switch_to")" - - comment_for_reflog start - fi -} - -init_basic_state () { - orig_head=$(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 -} - -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 "$upstream" - then - shortupstream=$(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" >"$state_dir"/squash-onto - fi -} - -complete_action() { - test -s "$todo" || echo noop >> "$todo" - test -z "$autosquash" || git rebase--interactive --rearrange-squash || exit - test -n "$cmd" && git rebase--interactive --add-exec-commands --cmd "$cmd" - - todocount=$(git stripspace --strip-comments <"$todo" | wc -l) - todocount=${todocount##* } - -cat >>"$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 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 - - - has_action "$todo" || - return 2 - - cp "$todo" "$todo".backup - collapse_todo_ids - git_sequence_editor "$todo" || - die_abort "$(gettext "Could not execute editor")" - - has_action "$todo" || - return 2 - - git rebase--interactive --check-todo-list || { - ret=$? - checkout_onto - exit $ret - } - - expand_todo_ids - checkout_onto - do_rest -} - -git_rebase__preserve_merges () { - initiate_action "$action" - ret=$? - if test $ret = 0; then - return 0 - fi - - setup_reflog_action - init_basic_state - - if test -z "$rebase_root" - 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 - else - mkdir "$rewritten" && - echo $onto > "$rewritten"/root || - die "$(gettext "Could not init rewritten commits")" - fi - - init_revisions_and_shortrevisions - - format=$(git config --get rebase.instructionFormat) - # the 'rev-list .. | sed' requires %m to parse; the instruction requires %H to parse - git rev-list --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 - - # Watch for commits that been dropped by --cherry-pick - 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 - - complete_action -} |