diff options
Diffstat (limited to 'builtin/rebase.c')
-rw-r--r-- | builtin/rebase.c | 706 |
1 files changed, 361 insertions, 345 deletions
diff --git a/builtin/rebase.c b/builtin/rebase.c index 70aa7c8..891f284 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -4,20 +4,23 @@ * Copyright (c) 2018 Pratik Karki */ -#define USE_THE_INDEX_COMPATIBILITY_MACROS +#define USE_THE_INDEX_VARIABLE #include "builtin.h" +#include "abspath.h" +#include "environment.h" +#include "gettext.h" +#include "hex.h" #include "run-command.h" -#include "exec-cmd.h" #include "strvec.h" #include "dir.h" -#include "packfile.h" #include "refs.h" -#include "quote.h" #include "config.h" -#include "cache-tree.h" #include "unpack-trees.h" #include "lockfile.h" +#include "object-file.h" +#include "object-name.h" #include "parse-options.h" +#include "path.h" #include "commit.h" #include "diff.h" #include "wt-status.h" @@ -28,10 +31,9 @@ #include "sequencer.h" #include "rebase-interactive.h" #include "reset.h" +#include "trace2.h" #include "hook.h" -#define DEFAULT_REFLOG_ACTION "rebase" - static char const * const builtin_rebase_usage[] = { N_("git rebase [-i] [options] [--exec <cmd>] " "[--onto <newbase> | --keep-base] [<upstream> [<branch>]]"), @@ -56,7 +58,27 @@ enum empty_type { EMPTY_UNSPECIFIED = -1, EMPTY_DROP, EMPTY_KEEP, - EMPTY_ASK + EMPTY_STOP +}; + +enum action { + ACTION_NONE = 0, + ACTION_CONTINUE, + ACTION_SKIP, + ACTION_ABORT, + ACTION_QUIT, + ACTION_EDIT_TODO, + ACTION_SHOW_CURRENT_PATCH +}; + +static const char *action_names[] = { + "undefined", + "continue", + "skip", + "abort", + "quit", + "edit_todo", + "show_current_patch" }; struct rebase_options { @@ -68,7 +90,7 @@ struct rebase_options { const char *upstream_name; const char *upstream_arg; char *head_name; - struct object_id orig_head; + struct commit *orig_head; struct commit *onto; const char *onto_name; const char *revisions; @@ -85,7 +107,8 @@ struct rebase_options { REBASE_INTERACTIVE_EXPLICIT = 1<<4, } flags; struct strvec git_am_opts; - const char *action; + enum action action; + char *reflog_action; int signoff; int allow_rerere_autoupdate; int keep_empty; @@ -94,14 +117,19 @@ struct rebase_options { int autostash; int committer_date_is_author_date; int ignore_date; - char *cmd; + struct string_list exec; int allow_empty_message; int rebase_merges, rebase_cousins; - char *strategy, *strategy_opts; + char *strategy; + struct string_list strategy_opts; struct strbuf git_format_patch_opt; int reschedule_failed_exec; int reapply_cherry_picks; int fork_point; + int update_refs; + int config_autosquash; + int config_rebase_merges; + int config_update_refs; }; #define REBASE_OPTIONS_INIT { \ @@ -111,8 +139,17 @@ struct rebase_options { .default_backend = "merge", \ .flags = REBASE_NO_QUIET, \ .git_am_opts = STRVEC_INIT, \ + .exec = STRING_LIST_INIT_NODUP, \ .git_format_patch_opt = STRBUF_INIT, \ .fork_point = -1, \ + .reapply_cherry_picks = -1, \ + .allow_empty_message = 1, \ + .autosquash = -1, \ + .rebase_merges = -1, \ + .config_rebase_merges = -1, \ + .update_refs = -1, \ + .config_update_refs = -1, \ + .strategy_opts = STRING_LIST_INIT_NODUP,\ } static struct replay_opts get_replay_opts(const struct rebase_options *opts) @@ -138,6 +175,7 @@ static struct replay_opts get_replay_opts(const struct rebase_options *opts) opts->committer_date_is_author_date; replay.ignore_date = opts->ignore_date; replay.gpg_sign = xstrdup_or_null(opts->gpg_sign_opt); + replay.reflog_action = xstrdup(opts->reflog_action); if (opts->strategy) replay.strategy = xstrdup_or_null(opts->strategy); else if (!replay.strategy && replay.default_strategy) { @@ -145,8 +183,8 @@ static struct replay_opts get_replay_opts(const struct rebase_options *opts) replay.default_strategy = NULL; } - if (opts->strategy_opts) - parse_strategy_opts(&replay, opts->strategy_opts); + for (size_t i = 0; i < opts->strategy_opts.nr; i++) + strvec_push(&replay.xopts, opts->strategy_opts.items[i].string); if (opts->squash_onto) { oidcpy(&replay.squash_onto, opts->squash_onto); @@ -156,24 +194,6 @@ static struct replay_opts get_replay_opts(const struct rebase_options *opts) return replay; } -enum action { - ACTION_NONE = 0, - ACTION_CONTINUE, - ACTION_SKIP, - ACTION_ABORT, - ACTION_QUIT, - ACTION_EDIT_TODO, - ACTION_SHOW_CURRENT_PATCH -}; - -static const char *action_names[] = { "undefined", - "continue", - "skip", - "abort", - "quit", - "edit_todo", - "show_current_patch" }; - static int edit_todo_file(unsigned flags) { const char *todo_file = rebase_path_todo(); @@ -184,7 +204,7 @@ static int edit_todo_file(unsigned flags) if (strbuf_read_file(&todo_list.buf, todo_file, 0) < 0) return error_errno(_("could not read '%s'."), todo_file); - strbuf_stripspace(&todo_list.buf, 1); + strbuf_stripspace(&todo_list.buf, comment_line_str); res = edit_todo_list(the_repository, &todo_list, &new_todo, NULL, NULL, flags); if (!res && todo_list_write_to_file(the_repository, &new_todo, todo_file, NULL, NULL, -1, flags & ~(TODO_LIST_SHORTEN_IDS))) @@ -206,13 +226,15 @@ static int get_revision_ranges(struct commit *upstream, struct commit *onto, *revisions = xstrfmt("%s...%s", oid_to_hex(&base_rev->object.oid), oid_to_hex(orig_head)); - shorthead = find_unique_abbrev(orig_head, DEFAULT_ABBREV); + shorthead = repo_find_unique_abbrev(the_repository, orig_head, + DEFAULT_ABBREV); if (upstream) { const char *shortrev; - shortrev = find_unique_abbrev(&base_rev->object.oid, - DEFAULT_ABBREV); + shortrev = repo_find_unique_abbrev(the_repository, + &base_rev->object.oid, + DEFAULT_ABBREV); *shortrevisions = xstrfmt("%s..%s", shortrev, shorthead); } else @@ -240,38 +262,22 @@ static int init_basic_state(struct replay_opts *opts, const char *head_name, return write_basic_state(opts, head_name, onto, orig_head); } -static void split_exec_commands(const char *cmd, struct string_list *commands) -{ - if (cmd && *cmd) { - string_list_split(commands, cmd, '\n', -1); - - /* rebase.c adds a new line to cmd after every command, - * so here the last command is always empty */ - string_list_remove_empty_items(commands, 0); - } -} - static int do_interactive_rebase(struct rebase_options *opts, unsigned flags) { - int ret; + int ret = -1; char *revisions = NULL, *shortrevisions = NULL; struct strvec make_script_args = STRVEC_INIT; struct todo_list todo_list = TODO_LIST_INIT; struct replay_opts replay = get_replay_opts(opts); - struct string_list commands = STRING_LIST_INIT_DUP; - if (get_revision_ranges(opts->upstream, opts->onto, &opts->orig_head, + if (get_revision_ranges(opts->upstream, opts->onto, &opts->orig_head->object.oid, &revisions, &shortrevisions)) - return -1; + goto cleanup; if (init_basic_state(&replay, opts->head_name ? opts->head_name : "detached HEAD", - opts->onto, &opts->orig_head)) { - free(revisions); - free(shortrevisions); - - return -1; - } + opts->onto, &opts->orig_head->object.oid)) + goto cleanup; if (!opts->upstream && opts->squash_onto) write_file(path_squash_onto(), "%s\n", @@ -289,19 +295,19 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags) if (ret) error(_("could not generate todo list")); else { - discard_cache(); + discard_index(&the_index); if (todo_list_parse_insn_buffer(the_repository, todo_list.buf.buf, &todo_list)) BUG("unusable todo list"); - split_exec_commands(opts->cmd, &commands); ret = complete_action(the_repository, &replay, flags, shortrevisions, opts->onto_name, opts->onto, - &opts->orig_head, &commands, opts->autosquash, - &todo_list); + &opts->orig_head->object.oid, &opts->exec, + opts->autosquash, opts->update_refs, &todo_list); } - string_list_clear(&commands, 0); +cleanup: + replay_opts_release(&replay); free(revisions); free(shortrevisions); todo_list_release(&todo_list); @@ -310,8 +316,7 @@ static int do_interactive_rebase(struct rebase_options *opts, unsigned flags) return ret; } -static int run_sequencer_rebase(struct rebase_options *opts, - enum action command) +static int run_sequencer_rebase(struct rebase_options *opts) { unsigned flags = 0; int abbreviate_commands = 0, ret = 0; @@ -326,7 +331,7 @@ static int run_sequencer_rebase(struct rebase_options *opts, flags |= opts->reapply_cherry_picks ? TODO_LIST_REAPPLY_CHERRY_PICKS : 0; flags |= opts->flags & REBASE_NO_QUIET ? TODO_LIST_WARN_SKIPPED_CHERRY_PICKS : 0; - switch (command) { + switch (opts->action) { case ACTION_NONE: { if (!opts->onto && !opts->upstream) die(_("a base commit must be provided with --upstream or --onto")); @@ -344,6 +349,7 @@ static int run_sequencer_rebase(struct rebase_options *opts, struct replay_opts replay_opts = get_replay_opts(opts); ret = sequencer_continue(the_repository, &replay_opts); + replay_opts_release(&replay_opts); break; } case ACTION_EDIT_TODO: @@ -359,26 +365,12 @@ static int run_sequencer_rebase(struct rebase_options *opts, break; } default: - BUG("invalid command '%d'", command); + BUG("invalid command '%d'", opts->action); } return ret; } -static void imply_merge(struct rebase_options *opts, const char *option); -static int parse_opt_keep_empty(const struct option *opt, const char *arg, - int unset) -{ - struct rebase_options *opts = opt->value; - - BUG_ON_OPT_ARG(arg); - - imply_merge(opts, unset ? "--no-keep-empty" : "--keep-empty"); - opts->keep_empty = !unset; - opts->type = REBASE_MERGE; - return 0; -} - static int is_merge(struct rebase_options *opts) { return opts->type == REBASE_MERGE; @@ -429,9 +421,9 @@ static int read_basic_state(struct rebase_options *opts) opts->head_name = starts_with(head_name.buf, "refs/") ? xstrdup(head_name.buf) : NULL; strbuf_release(&head_name); - if (get_oid(buf.buf, &oid)) - return error(_("could not get 'onto': '%s'"), buf.buf); - opts->onto = lookup_commit_or_die(&oid, buf.buf); + if (get_oid_hex(buf.buf, &oid) || + !(opts->onto = lookup_commit_object(the_repository, &oid))) + return error(_("invalid onto: '%s'"), buf.buf); /* * We always write to orig-head, but interactive rebase used to write to @@ -446,7 +438,8 @@ static int read_basic_state(struct rebase_options *opts) } else if (!read_oneliner(&buf, state_dir_path("head", opts), READ_ONELINER_WARN_MISSING)) return -1; - if (get_oid(buf.buf, &opts->orig_head)) + if (get_oid_hex(buf.buf, &oid) || + !(opts->orig_head = lookup_commit_object(the_repository, &oid))) return error(_("invalid orig-head: '%s'"), buf.buf); if (file_exists(state_dir_path("quiet", opts))) @@ -485,24 +478,6 @@ static int read_basic_state(struct rebase_options *opts) opts->gpg_sign_opt = xstrdup(buf.buf); } - if (file_exists(state_dir_path("strategy", opts))) { - strbuf_reset(&buf); - if (!read_oneliner(&buf, state_dir_path("strategy", opts), - READ_ONELINER_WARN_MISSING)) - return -1; - free(opts->strategy); - opts->strategy = xstrdup(buf.buf); - } - - if (file_exists(state_dir_path("strategy_opts", opts))) { - strbuf_reset(&buf); - if (!read_oneliner(&buf, state_dir_path("strategy_opts", opts), - READ_ONELINER_WARN_MISSING)) - return -1; - free(opts->strategy_opts); - opts->strategy_opts = xstrdup(buf.buf); - } - strbuf_release(&buf); return 0; @@ -515,17 +490,11 @@ static int rebase_write_basic_state(struct rebase_options *opts) write_file(state_dir_path("onto", opts), "%s", opts->onto ? oid_to_hex(&opts->onto->object.oid) : ""); write_file(state_dir_path("orig-head", opts), "%s", - oid_to_hex(&opts->orig_head)); + oid_to_hex(&opts->orig_head->object.oid)); if (!(opts->flags & REBASE_NO_QUIET)) write_file(state_dir_path("quiet", opts), "%s", ""); if (opts->flags & REBASE_VERBOSE) write_file(state_dir_path("verbose", opts), "%s", ""); - if (opts->strategy) - write_file(state_dir_path("strategy", opts), "%s", - opts->strategy); - if (opts->strategy_opts) - write_file(state_dir_path("strategy_opts", opts), "%s", - opts->strategy_opts); if (opts->allow_rerere_autoupdate > 0) write_file(state_dir_path("allow_rerere_autoupdate", opts), "-%s-rerere-autoupdate", @@ -546,7 +515,7 @@ static int finish_rebase(struct rebase_options *opts) int ret = 0; delete_ref(NULL, "REBASE_HEAD", NULL, REF_NO_DEREF); - unlink(git_path_auto_merge(the_repository)); + delete_ref(NULL, "AUTO_MERGE", NULL, REF_NO_DEREF); apply_autostash(state_dir_path("autostash", opts)); /* * We ignore errors in 'git maintenance run --auto', since the @@ -558,6 +527,7 @@ static int finish_rebase(struct rebase_options *opts) replay.action = REPLAY_INTERACTIVE_REBASE; ret = sequencer_remove_state(&replay); + replay_opts_release(&replay); } else { strbuf_addstr(&dir, opts->state_dir); if (remove_dir_recursively(&dir, 0)) @@ -581,10 +551,11 @@ static int move_to_original_branch(struct rebase_options *opts) if (!opts->onto) BUG("move_to_original_branch without onto"); - strbuf_addf(&branch_reflog, "rebase finished: %s onto %s", + strbuf_addf(&branch_reflog, "%s (finish): %s onto %s", + opts->reflog_action, opts->head_name, oid_to_hex(&opts->onto->object.oid)); - strbuf_addf(&head_reflog, "rebase finished: returning to %s", - opts->head_name); + strbuf_addf(&head_reflog, "%s (finish): returning to %s", + opts->reflog_action, opts->head_name); ropts.branch = opts->head_name; ropts.flags = RESET_HEAD_REFS_ONLY; ropts.branch_msg = branch_reflog.buf; @@ -596,27 +567,20 @@ static int move_to_original_branch(struct rebase_options *opts) return ret; } -static const char *resolvemsg = -N_("Resolve all conflicts manually, mark them as resolved with\n" -"\"git add/rm <conflicted_files>\", then run \"git rebase --continue\".\n" -"You can instead skip this commit: run \"git rebase --skip\".\n" -"To abort and get back to the state before \"git rebase\", run " -"\"git rebase --abort\"."); - static int run_am(struct rebase_options *opts) { struct child_process am = CHILD_PROCESS_INIT; struct child_process format_patch = CHILD_PROCESS_INIT; - struct strbuf revisions = STRBUF_INIT; int status; char *rebased_patches; am.git_cmd = 1; strvec_push(&am.args, "am"); - - if (opts->action && !strcmp("continue", opts->action)) { + strvec_pushf(&am.env, GIT_REFLOG_ACTION_ENVIRONMENT "=%s (pick)", + opts->reflog_action); + if (opts->action == ACTION_CONTINUE) { strvec_push(&am.args, "--resolved"); - strvec_pushf(&am.args, "--resolvemsg=%s", resolvemsg); + strvec_pushf(&am.args, "--resolvemsg=%s", rebase_resolvemsg); if (opts->gpg_sign_opt) strvec_push(&am.args, opts->gpg_sign_opt); status = run_command(&am); @@ -625,27 +589,20 @@ static int run_am(struct rebase_options *opts) return move_to_original_branch(opts); } - if (opts->action && !strcmp("skip", opts->action)) { + if (opts->action == ACTION_SKIP) { strvec_push(&am.args, "--skip"); - strvec_pushf(&am.args, "--resolvemsg=%s", resolvemsg); + strvec_pushf(&am.args, "--resolvemsg=%s", rebase_resolvemsg); status = run_command(&am); if (status) return status; return move_to_original_branch(opts); } - if (opts->action && !strcmp("show-current-patch", opts->action)) { + if (opts->action == ACTION_SHOW_CURRENT_PATCH) { strvec_push(&am.args, "--show-current-patch"); return run_command(&am); } - strbuf_addf(&revisions, "%s...%s", - oid_to_hex(opts->root ? - /* this is now equivalent to !opts->upstream */ - &opts->onto->object.oid : - &opts->upstream->object.oid), - oid_to_hex(&opts->orig_head)); - rebased_patches = xstrdup(git_path("rebased-patches")); format_patch.out = open(rebased_patches, O_WRONLY | O_CREAT | O_TRUNC, 0666); @@ -653,20 +610,25 @@ static int run_am(struct rebase_options *opts) status = error_errno(_("could not open '%s' for writing"), rebased_patches); free(rebased_patches); - strvec_clear(&am.args); + child_process_clear(&am); return status; } format_patch.git_cmd = 1; strvec_pushl(&format_patch.args, "format-patch", "-k", "--stdout", "--full-index", "--cherry-pick", "--right-only", - "--src-prefix=a/", "--dst-prefix=b/", "--no-renames", + "--default-prefix", "--no-renames", "--no-cover-letter", "--pretty=mboxrd", "--topo-order", "--no-base", NULL); if (opts->git_format_patch_opt.len) strvec_split(&format_patch.args, opts->git_format_patch_opt.buf); - strvec_push(&format_patch.args, revisions.buf); + strvec_pushf(&format_patch.args, "%s...%s", + oid_to_hex(opts->root ? + /* this is now equivalent to !opts->upstream */ + &opts->onto->object.oid : + &opts->upstream->object.oid), + oid_to_hex(&opts->orig_head->object.oid)); if (opts->restrict_revision) strvec_pushf(&format_patch.args, "^%s", oid_to_hex(&opts->restrict_revision->object.oid)); @@ -676,11 +638,11 @@ static int run_am(struct rebase_options *opts) struct reset_head_opts ropts = { 0 }; unlink(rebased_patches); free(rebased_patches); - strvec_clear(&am.args); + child_process_clear(&am); - ropts.oid = &opts->orig_head; + ropts.oid = &opts->orig_head->object.oid; ropts.branch = opts->head_name; - ropts.default_reflog_action = DEFAULT_REFLOG_ACTION; + ropts.default_reflog_action = opts->reflog_action; reset_head(the_repository, &ropts); error(_("\ngit encountered an error while preparing the " "patches to replay\n" @@ -689,23 +651,21 @@ static int run_am(struct rebase_options *opts) "As a result, git cannot rebase them."), opts->revisions); - strbuf_release(&revisions); return status; } - strbuf_release(&revisions); am.in = open(rebased_patches, O_RDONLY); if (am.in < 0) { status = error_errno(_("could not open '%s' for reading"), rebased_patches); free(rebased_patches); - strvec_clear(&am.args); + child_process_clear(&am); return status; } strvec_pushv(&am.args, opts->git_am_opts.v); strvec_push(&am.args, "--rebasing"); - strvec_pushf(&am.args, "--resolvemsg=%s", resolvemsg); + strvec_pushf(&am.args, "--resolvemsg=%s", rebase_resolvemsg); strvec_push(&am.args, "--patch-format=mboxrd"); if (opts->allow_rerere_autoupdate == RERERE_AUTOUPDATE) strvec_push(&am.args, "--rerere-autoupdate"); @@ -727,17 +687,14 @@ static int run_am(struct rebase_options *opts) return status; } -static int run_specific_rebase(struct rebase_options *opts, enum action action) +static int run_specific_rebase(struct rebase_options *opts) { int status; if (opts->type == REBASE_MERGE) { /* Run sequencer-based rebase */ - setenv("GIT_CHERRY_PICK_HELP", resolvemsg, 1); - if (!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) { + if (!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) setenv("GIT_SEQUENCE_EDITOR", ":", 1); - opts->autosquash = 0; - } if (opts->gpg_sign_opt) { /* remove the leading "-S" */ char *tmp = xstrdup(opts->gpg_sign_opt + 2); @@ -745,7 +702,7 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action) opts->gpg_sign_opt = tmp; } - status = run_sequencer_rebase(opts, action); + status = run_sequencer_rebase(opts); } else if (opts->type == REBASE_APPLY) status = run_am(opts); else @@ -771,7 +728,18 @@ static int run_specific_rebase(struct rebase_options *opts, enum action action) return status ? -1 : 0; } -static int rebase_config(const char *var, const char *value, void *data) +static void parse_rebase_merges_value(struct rebase_options *options, const char *value) +{ + if (!strcmp("no-rebase-cousins", value)) + options->rebase_cousins = 0; + else if (!strcmp("rebase-cousins", value)) + options->rebase_cousins = 1; + else + die(_("Unknown rebase-merges mode: %s"), value); +} + +static int rebase_config(const char *var, const char *value, + const struct config_context *ctx, void *data) { struct rebase_options *opts = data; @@ -784,7 +752,7 @@ static int rebase_config(const char *var, const char *value, void *data) } if (!strcmp(var, "rebase.autosquash")) { - opts->autosquash = git_config_bool(var, value); + opts->config_autosquash = git_config_bool(var, value); return 0; } @@ -800,6 +768,22 @@ static int rebase_config(const char *var, const char *value, void *data) return 0; } + if (!strcmp(var, "rebase.rebasemerges")) { + opts->config_rebase_merges = git_parse_maybe_bool(value); + if (opts->config_rebase_merges < 0) { + opts->config_rebase_merges = 1; + parse_rebase_merges_value(opts, value); + } else { + opts->rebase_cousins = 0; + } + return 0; + } + + if (!strcmp(var, "rebase.updaterefs")) { + opts->config_update_refs = git_config_bool(var, value); + return 0; + } + if (!strcmp(var, "rebase.reschedulefailedexec")) { opts->reschedule_failed_exec = git_config_bool(var, value); return 0; @@ -814,7 +798,7 @@ static int rebase_config(const char *var, const char *value, void *data) return git_config_string(&opts->default_backend, var, value); } - return git_default_config(var, value, data); + return git_default_config(var, value, ctx, data); } static int checkout_up_to_date(struct rebase_options *options) @@ -824,9 +808,8 @@ static int checkout_up_to_date(struct rebase_options *options) int ret = 0; strbuf_addf(&buf, "%s: checkout %s", - getenv(GIT_REFLOG_ACTION_ENVIRONMENT), - options->switch_to); - ropts.oid = &options->orig_head; + options->reflog_action, options->switch_to); + ropts.oid = &options->orig_head->object.oid; ropts.branch = options->head_name; ropts.flags = RESET_HEAD_RUN_POST_CHECKOUT_HOOK; if (!ropts.branch) @@ -847,7 +830,7 @@ static int checkout_up_to_date(struct rebase_options *options) static int is_linear_history(struct commit *from, struct commit *to) { while (to && to != from) { - parse_commit(to); + repo_parse_commit(the_repository, to); if (!to->parents) return 1; if (to->parents->next) @@ -859,33 +842,25 @@ static int is_linear_history(struct commit *from, struct commit *to) static int can_fast_forward(struct commit *onto, struct commit *upstream, struct commit *restrict_revision, - struct object_id *head_oid, struct object_id *merge_base) + struct commit *head, struct object_id *branch_base) { - struct commit *head = lookup_commit(the_repository, head_oid); struct commit_list *merge_bases = NULL; int res = 0; - if (!head) - goto done; + if (is_null_oid(branch_base)) + goto done; /* fill_branch_base() found multiple merge bases */ - merge_bases = get_merge_bases(onto, head); - if (!merge_bases || merge_bases->next) { - oidcpy(merge_base, null_oid()); + if (!oideq(branch_base, &onto->object.oid)) goto done; - } - oidcpy(merge_base, &merge_bases->item->object.oid); - if (!oideq(merge_base, &onto->object.oid)) - goto done; - - if (restrict_revision && !oideq(&restrict_revision->object.oid, merge_base)) + if (restrict_revision && !oideq(&restrict_revision->object.oid, branch_base)) goto done; if (!upstream) goto done; - free_commit_list(merge_bases); - merge_bases = get_merge_bases(upstream, head); + if (repo_get_merge_bases(the_repository, upstream, head, &merge_bases) < 0) + exit(128); if (!merge_bases || merge_bases->next) goto done; @@ -899,6 +874,22 @@ done: return res && is_linear_history(onto, head); } +static void fill_branch_base(struct rebase_options *options, + struct object_id *branch_base) +{ + struct commit_list *merge_bases = NULL; + + if (repo_get_merge_bases(the_repository, options->onto, + options->orig_head, &merge_bases) < 0) + exit(128); + if (!merge_bases || merge_bases->next) + oidcpy(branch_base, null_oid()); + else + oidcpy(branch_base, &merge_bases->item->object.oid); + + free_commit_list(merge_bases); +} + static int parse_opt_am(const struct option *opt, const char *arg, int unset) { struct rebase_options *opts = opt->value; @@ -906,6 +897,9 @@ static int parse_opt_am(const struct option *opt, const char *arg, int unset) BUG_ON_OPT_NEG(unset); BUG_ON_OPT_ARG(arg); + if (opts->type != REBASE_UNSPECIFIED && opts->type != REBASE_APPLY) + die(_("apply options and merge options cannot be used together")); + opts->type = REBASE_APPLY; return 0; @@ -919,8 +913,10 @@ static int parse_opt_merge(const struct option *opt, const char *arg, int unset) BUG_ON_OPT_NEG(unset); BUG_ON_OPT_ARG(arg); - if (!is_merge(opts)) - opts->type = REBASE_MERGE; + if (opts->type != REBASE_UNSPECIFIED && opts->type != REBASE_MERGE) + die(_("apply options and merge options cannot be used together")); + + opts->type = REBASE_MERGE; return 0; } @@ -934,6 +930,9 @@ static int parse_opt_interactive(const struct option *opt, const char *arg, BUG_ON_OPT_NEG(unset); BUG_ON_OPT_ARG(arg); + if (opts->type != REBASE_UNSPECIFIED && opts->type != REBASE_MERGE) + die(_("apply options and merge options cannot be used together")); + opts->type = REBASE_MERGE; opts->flags |= REBASE_INTERACTIVE_EXPLICIT; @@ -946,10 +945,26 @@ static enum empty_type parse_empty_value(const char *value) return EMPTY_DROP; else if (!strcasecmp(value, "keep")) return EMPTY_KEEP; - else if (!strcasecmp(value, "ask")) - return EMPTY_ASK; + else if (!strcasecmp(value, "stop")) + return EMPTY_STOP; + else if (!strcasecmp(value, "ask")) { + warning(_("--empty=ask is deprecated; use '--empty=stop' instead.")); + return EMPTY_STOP; + } + + die(_("unrecognized empty type '%s'; valid values are \"drop\", \"keep\", and \"stop\"."), value); +} + +static int parse_opt_keep_empty(const struct option *opt, const char *arg, + int unset) +{ + struct rebase_options *opts = opt->value; + + BUG_ON_OPT_ARG(arg); - die(_("unrecognized empty type '%s'; valid values are \"drop\", \"keep\", and \"ask\"."), value); + imply_merge(opts, unset ? "--no-keep-empty" : "--keep-empty"); + opts->keep_empty = !unset; + return 0; } static int parse_opt_empty(const struct option *opt, const char *arg, int unset) @@ -963,6 +978,28 @@ static int parse_opt_empty(const struct option *opt, const char *arg, int unset) return 0; } +static int parse_opt_rebase_merges(const struct option *opt, const char *arg, int unset) +{ + struct rebase_options *options = opt->value; + + options->rebase_merges = !unset; + options->rebase_cousins = 0; + + if (arg) { + if (!*arg) { + warning(_("--rebase-merges with an empty string " + "argument is deprecated and will stop " + "working in a future version of Git. Use " + "--rebase-merges without an argument " + "instead, which does the same thing.")); + return 0; + } + parse_rebase_merges_value(options, arg); + } + + return 0; +} + static void NORETURN error_on_missing_default_upstream(void) { struct branch *current_branch = branch_get(NULL); @@ -993,23 +1030,6 @@ static void NORETURN error_on_missing_default_upstream(void) exit(1); } -static void set_reflog_action(struct rebase_options *options) -{ - const char *env; - struct strbuf buf = STRBUF_INIT; - - if (!is_merge(options)) - return; - - env = getenv(GIT_REFLOG_ACTION_ENVIRONMENT); - if (env && strcmp("rebase", env)) - return; /* only override it if it is "rebase" */ - - strbuf_addf(&buf, "rebase (%s)", options->action); - setenv(GIT_REFLOG_ACTION_ENVIRONMENT, buf.buf, 1); - strbuf_release(&buf); -} - static int check_exec_cmd(const char *cmd) { if (strchr(cmd, '\n')) @@ -1032,15 +1052,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) struct strbuf msg = STRBUF_INIT; struct strbuf revisions = STRBUF_INIT; struct strbuf buf = STRBUF_INIT; - struct object_id merge_base; + struct object_id branch_base; int ignore_whitespace = 0; - enum action action = ACTION_NONE; const char *gpg_sign = NULL; - struct string_list exec = STRING_LIST_INIT_NODUP; - const char *rebase_merges = NULL; - struct string_list strategy_options = STRING_LIST_INIT_NODUP; struct object_id squash_onto; char *squash_onto_name = NULL; + char *keep_base_onto_name = NULL; int reschedule_failed_exec = -1; int allow_preemptive_ff = 1; int preserve_merges_selected = 0; @@ -1083,18 +1100,18 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) OPT_BIT(0, "no-ff", &options.flags, N_("cherry-pick all commits, even if unchanged"), REBASE_FORCE), - OPT_CMDMODE(0, "continue", &action, N_("continue"), + OPT_CMDMODE(0, "continue", &options.action, N_("continue"), ACTION_CONTINUE), - OPT_CMDMODE(0, "skip", &action, + OPT_CMDMODE(0, "skip", &options.action, N_("skip current patch and continue"), ACTION_SKIP), - OPT_CMDMODE(0, "abort", &action, + OPT_CMDMODE(0, "abort", &options.action, N_("abort and check out the original branch"), ACTION_ABORT), - OPT_CMDMODE(0, "quit", &action, + OPT_CMDMODE(0, "quit", &options.action, N_("abort but keep HEAD where it is"), ACTION_QUIT), - OPT_CMDMODE(0, "edit-todo", &action, N_("edit the todo list " + OPT_CMDMODE(0, "edit-todo", &options.action, N_("edit the todo list " "during an interactive rebase"), ACTION_EDIT_TODO), - OPT_CMDMODE(0, "show-current-patch", &action, + OPT_CMDMODE(0, "show-current-patch", &options.action, N_("show the patch file being applied or merged"), ACTION_SHOW_CURRENT_PATCH), OPT_CALLBACK_F(0, "apply", &options, NULL, @@ -1114,7 +1131,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) "instead of ignoring them"), 1, PARSE_OPT_HIDDEN), OPT_RERERE_AUTOUPDATE(&options.allow_rerere_autoupdate), - OPT_CALLBACK_F(0, "empty", &options, "{drop,keep,ask}", + OPT_CALLBACK_F(0, "empty", &options, "(drop|keep|stop)", N_("how to handle commits that become empty"), PARSE_OPT_NONEG, parse_opt_empty), OPT_CALLBACK_F('k', "keep-empty", &options, NULL, @@ -1124,26 +1141,28 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) OPT_BOOL(0, "autosquash", &options.autosquash, N_("move commits that begin with " "squash!/fixup! under -i")), + OPT_BOOL(0, "update-refs", &options.update_refs, + N_("update branches that point to commits " + "that are being rebased")), { OPTION_STRING, 'S', "gpg-sign", &gpg_sign, N_("key-id"), N_("GPG-sign commits"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" }, OPT_AUTOSTASH(&options.autostash), - OPT_STRING_LIST('x', "exec", &exec, N_("exec"), + OPT_STRING_LIST('x', "exec", &options.exec, N_("exec"), N_("add exec lines after each commit of the " "editable list")), OPT_BOOL_F(0, "allow-empty-message", &options.allow_empty_message, N_("allow rebasing commits with empty messages"), PARSE_OPT_HIDDEN), - {OPTION_STRING, 'r', "rebase-merges", &rebase_merges, - N_("mode"), + OPT_CALLBACK_F('r', "rebase-merges", &options, N_("mode"), N_("try to rebase merges instead of skipping them"), - PARSE_OPT_OPTARG, NULL, (intptr_t)""}, + PARSE_OPT_OPTARG, parse_opt_rebase_merges), OPT_BOOL(0, "fork-point", &options.fork_point, N_("use 'merge-base --fork-point' to refine upstream")), OPT_STRING('s', "strategy", &options.strategy, N_("strategy"), N_("use the given merge strategy")), - OPT_STRING_LIST('X', "strategy-option", &strategy_options, + OPT_STRING_LIST('X', "strategy-option", &options.strategy_opts, N_("option"), N_("pass the argument through to the merge " "strategy")), @@ -1165,7 +1184,6 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) prepare_repo_settings(the_repository); the_repository->settings.command_requires_full_index = 0; - options.allow_empty_message = 1; git_config(rebase_config, &options); /* options.gpg_sign_opt will be either "-S" or NULL */ gpg_sign = options.gpg_sign_opt ? "" : NULL; @@ -1182,7 +1200,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) } else if (is_directory(merge_dir())) { strbuf_reset(&buf); strbuf_addf(&buf, "%s/rewritten", merge_dir()); - if (!(action == ACTION_ABORT) && is_directory(buf.buf)) { + if (!(options.action == ACTION_ABORT) && is_directory(buf.buf)) { die(_("`rebase --preserve-merges` (-p) is no longer supported.\n" "Use `git rebase --abort` to terminate current rebase.\n" "Or downgrade to v2.33, or earlier, to complete the rebase.")); @@ -1209,7 +1227,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) "Note: Your `pull.rebase` configuration may also be set to 'preserve',\n" "which is no longer supported; use 'merges' instead")); - if (action != ACTION_NONE && total_argc != 2) { + if (options.action != ACTION_NONE && total_argc != 2) { usage_with_options(builtin_rebase_usage, builtin_rebase_options); } @@ -1223,42 +1241,47 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) die(_("options '%s' and '%s' cannot be used together"), "--keep-base", "--onto"); if (options.root) die(_("options '%s' and '%s' cannot be used together"), "--keep-base", "--root"); + /* + * --keep-base defaults to --no-fork-point to keep the + * base the same. + */ + if (options.fork_point < 0) + options.fork_point = 0; } - if (options.root && options.fork_point > 0) die(_("options '%s' and '%s' cannot be used together"), "--root", "--fork-point"); - if (action != ACTION_NONE && !in_progress) - die(_("No rebase in progress?")); - setenv(GIT_REFLOG_ACTION_ENVIRONMENT, "rebase", 0); + if (options.action != ACTION_NONE && !in_progress) + die(_("no rebase in progress")); - if (action == ACTION_EDIT_TODO && !is_merge(&options)) + if (options.action == ACTION_EDIT_TODO && !is_merge(&options)) die(_("The --edit-todo action can only be used during " "interactive rebase.")); if (trace2_is_enabled()) { if (is_merge(&options)) trace2_cmd_mode("interactive"); - else if (exec.nr) + else if (options.exec.nr) trace2_cmd_mode("interactive-exec"); else - trace2_cmd_mode(action_names[action]); + trace2_cmd_mode(action_names[options.action]); } - switch (action) { + options.reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT); + options.reflog_action = + xstrdup(options.reflog_action ? options.reflog_action : "rebase"); + + switch (options.action) { case ACTION_CONTINUE: { struct object_id head; struct lock_file lock_file = LOCK_INIT; int fd; - options.action = "continue"; - set_reflog_action(&options); - /* Sanity check */ - if (get_oid("HEAD", &head)) + if (repo_get_oid(the_repository, "HEAD", &head)) die(_("Cannot read HEAD")); - fd = hold_locked_index(&lock_file, 0); + fd = repo_hold_locked_index(the_repository, &lock_file, 0); if (repo_read_index(the_repository) < 0) die(_("could not read index")); refresh_index(the_repository->index, REFRESH_QUIET, NULL, NULL, @@ -1279,9 +1302,6 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) case ACTION_SKIP: { struct string_list merge_rr = STRING_LIST_INIT_DUP; - options.action = "skip"; - set_reflog_action(&options); - rerere_clear(the_repository, &merge_rr); string_list_clear(&merge_rr, 1); ropts.flags = RESET_HEAD_HARD; @@ -1294,21 +1314,26 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) } case ACTION_ABORT: { struct string_list merge_rr = STRING_LIST_INIT_DUP; - options.action = "abort"; - set_reflog_action(&options); + struct strbuf head_msg = STRBUF_INIT; rerere_clear(the_repository, &merge_rr); string_list_clear(&merge_rr, 1); if (read_basic_state(&options)) exit(1); - ropts.oid = &options.orig_head; + + strbuf_addf(&head_msg, "%s (abort): returning to %s", + options.reflog_action, + options.head_name ? options.head_name + : oid_to_hex(&options.orig_head->object.oid)); + ropts.oid = &options.orig_head->object.oid; + ropts.head_msg = head_msg.buf; ropts.branch = options.head_name; ropts.flags = RESET_HEAD_HARD; - ropts.default_reflog_action = DEFAULT_REFLOG_ACTION; if (reset_head(the_repository, &ropts) < 0) die(_("could not move back to %s"), - oid_to_hex(&options.orig_head)); + oid_to_hex(&options.orig_head->object.oid)); + strbuf_release(&head_msg); remove_branch_state(the_repository, 0); ret = finish_rebase(&options); goto cleanup; @@ -1320,6 +1345,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) replay.action = REPLAY_INTERACTIVE_REBASE; ret = sequencer_remove_state(&replay); + replay_opts_release(&replay); } else { strbuf_reset(&buf); strbuf_addstr(&buf, options.state_dir); @@ -1331,17 +1357,15 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) goto cleanup; } case ACTION_EDIT_TODO: - options.action = "edit-todo"; options.dont_finish_rebase = 1; goto run_rebase; case ACTION_SHOW_CURRENT_PATCH: - options.action = "show-current-patch"; options.dont_finish_rebase = 1; goto run_rebase; case ACTION_NONE: break; default: - BUG("action: %d", action); + BUG("action: %d", options.action); } /* Make sure no rebase is in progress */ @@ -1365,9 +1389,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) } if ((options.flags & REBASE_INTERACTIVE_EXPLICIT) || - (action != ACTION_NONE) || - (exec.nr > 0) || - options.autosquash) { + (options.action != ACTION_NONE) || + (options.exec.nr > 0) || + options.autosquash == 1) { allow_preemptive_ff = 0; } if (options.committer_date_is_author_date || options.ignore_date) @@ -1390,8 +1414,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) } } - for (i = 0; i < exec.nr; i++) - if (check_exec_cmd(exec.items[i].string)) + for (i = 0; i < options.exec.nr; i++) + if (check_exec_cmd(options.exec.items[i].string)) exit(1); if (!(options.flags & REBASE_NO_QUIET)) @@ -1400,34 +1424,34 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (options.empty != EMPTY_UNSPECIFIED) imply_merge(&options, "--empty"); - if (options.reapply_cherry_picks) - imply_merge(&options, "--reapply-cherry-picks"); + if (options.reapply_cherry_picks < 0) + /* + * We default to --no-reapply-cherry-picks unless + * --keep-base is given; when --keep-base is given, we want + * to default to --reapply-cherry-picks. + */ + options.reapply_cherry_picks = keep_base; + else if (!keep_base) + /* + * The apply backend always searches for and drops cherry + * picks. This is often not wanted with --keep-base, so + * --keep-base allows --reapply-cherry-picks to be + * simulated by altering the upstream such that + * cherry-picks cannot be detected and thus all commits are + * reapplied. Thus, --[no-]reapply-cherry-picks is + * supported when --keep-base is specified, but not when + * --keep-base is left out. + */ + imply_merge(&options, options.reapply_cherry_picks ? + "--reapply-cherry-picks" : + "--no-reapply-cherry-picks"); if (gpg_sign) options.gpg_sign_opt = xstrfmt("-S%s", gpg_sign); - if (exec.nr) { - int i; - + if (options.exec.nr) imply_merge(&options, "--exec"); - strbuf_reset(&buf); - for (i = 0; i < exec.nr; i++) - strbuf_addf(&buf, "exec %s\n", exec.items[i].string); - options.cmd = xstrdup(buf.buf); - } - - if (rebase_merges) { - if (!*rebase_merges) - ; /* default mode; do nothing */ - else if (!strcmp("rebase-cousins", rebase_merges)) - options.rebase_cousins = 1; - else if (strcmp("no-rebase-cousins", rebase_merges)) - die(_("Unknown mode: %s"), rebase_merges); - options.rebase_merges = 1; - imply_merge(&options, "--rebase-merges"); - } - if (options.type == REBASE_APPLY) { if (ignore_whitespace) strvec_push(&options.git_am_opts, @@ -1440,43 +1464,19 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) } else { /* REBASE_MERGE */ if (ignore_whitespace) { - string_list_append(&strategy_options, + string_list_append(&options.strategy_opts, "ignore-space-change"); } } - if (strategy_options.nr) { - int i; - - if (!options.strategy) - options.strategy = "ort"; - - strbuf_reset(&buf); - for (i = 0; i < strategy_options.nr; i++) - strbuf_addf(&buf, " --%s", - strategy_options.items[i].string); - options.strategy_opts = xstrdup(buf.buf); - } + if (options.strategy_opts.nr && !options.strategy) + options.strategy = "ort"; if (options.strategy) { options.strategy = xstrdup(options.strategy); - switch (options.type) { - case REBASE_APPLY: - die(_("--strategy requires --merge or --interactive")); - case REBASE_MERGE: - /* compatible */ - break; - case REBASE_UNSPECIFIED: - options.type = REBASE_MERGE; - break; - default: - BUG("unhandled rebase type (%d)", options.type); - } + imply_merge(&options, "--strategy"); } - if (options.type == REBASE_MERGE) - imply_merge(&options, "--merge"); - if (options.root && !options.onto_name) imply_merge(&options, "--root without --onto"); @@ -1489,18 +1489,40 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (strcmp(options.git_am_opts.v[i], "-q")) break; - if (i >= 0) { + if (i >= 0 || options.type == REBASE_APPLY) { if (is_merge(&options)) die(_("apply options and merge options " "cannot be used together")); + else if (options.rebase_merges == -1 && options.config_rebase_merges == 1) + die(_("apply options are incompatible with rebase.rebaseMerges. Consider adding --no-rebase-merges")); + else if (options.update_refs == -1 && options.config_update_refs == 1) + die(_("apply options are incompatible with rebase.updateRefs. Consider adding --no-update-refs")); else options.type = REBASE_APPLY; } } + if (options.update_refs == 1) + imply_merge(&options, "--update-refs"); + options.update_refs = (options.update_refs >= 0) ? options.update_refs : + ((options.config_update_refs >= 0) ? options.config_update_refs : 0); + + if (options.rebase_merges == 1) + imply_merge(&options, "--rebase-merges"); + options.rebase_merges = (options.rebase_merges >= 0) ? options.rebase_merges : + ((options.config_rebase_merges >= 0) ? options.config_rebase_merges : 0); + + if (options.autosquash == 1) { + imply_merge(&options, "--autosquash"); + } else if (options.autosquash == -1) { + options.autosquash = + options.config_autosquash && + (options.flags & REBASE_INTERACTIVE_EXPLICIT); + } + if (options.type == REBASE_UNSPECIFIED) { if (!strcmp(options.default_backend, "merge")) - imply_merge(&options, "--merge"); + options.type = REBASE_MERGE; else if (!strcmp(options.default_backend, "apply")) options.type = REBASE_APPLY; else @@ -1526,8 +1548,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (options.empty == EMPTY_UNSPECIFIED) { if (options.flags & REBASE_INTERACTIVE_EXPLICIT) - options.empty = EMPTY_ASK; - else if (exec.nr > 0) + options.empty = EMPTY_STOP; + else if (options.exec.nr > 0) options.empty = EMPTY_KEEP; else options.empty = EMPTY_DROP; @@ -1594,25 +1616,27 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) */ if (argc == 1) { /* Is it "rebase other branchname" or "rebase other commit"? */ + struct object_id branch_oid; branch_name = argv[0]; options.switch_to = argv[0]; /* Is it a local branch? */ strbuf_reset(&buf); strbuf_addf(&buf, "refs/heads/%s", branch_name); - if (!read_ref(buf.buf, &options.orig_head)) { + if (!read_ref(buf.buf, &branch_oid)) { die_if_checked_out(buf.buf, 1); options.head_name = xstrdup(buf.buf); + options.orig_head = + lookup_commit_object(the_repository, + &branch_oid); /* If not is it a valid ref (branch or commit)? */ } else { - struct commit *commit = + options.orig_head = lookup_commit_reference_by_name(branch_name); - if (!commit) - die(_("no such branch/commit '%s'"), - branch_name); - oidcpy(&options.orig_head, &commit->object.oid); options.head_name = NULL; } + if (!options.orig_head) + die(_("no such branch/commit '%s'"), branch_name); } else if (argc == 0) { /* Do not need to switch branches, we are already on it. */ options.head_name = @@ -1629,8 +1653,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) FREE_AND_NULL(options.head_name); branch_name = "HEAD"; } - if (get_oid("HEAD", &options.orig_head)) - die(_("Could not resolve HEAD to a revision")); + options.orig_head = lookup_commit_reference_by_name("HEAD"); + if (!options.orig_head) + die(_("Could not resolve HEAD to a commit")); } else BUG("unexpected number of arguments left to parse"); @@ -1640,11 +1665,11 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) strbuf_addstr(&buf, options.upstream_name); strbuf_addstr(&buf, "..."); strbuf_addstr(&buf, branch_name); - options.onto_name = xstrdup(buf.buf); + options.onto_name = keep_base_onto_name = xstrdup(buf.buf); } else if (!options.onto_name) options.onto_name = options.upstream_name; if (strstr(options.onto_name, "...")) { - if (get_oid_mb(options.onto_name, &merge_base) < 0) { + if (repo_get_oid_mb(the_repository, options.onto_name, &branch_base) < 0) { if (keep_base) die(_("'%s': need exactly one merge base with branch"), options.upstream_name); @@ -1652,7 +1677,7 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) die(_("'%s': need exactly one merge base"), options.onto_name); } - options.onto = lookup_commit_or_die(&merge_base, + options.onto = lookup_commit_or_die(&branch_base, options.onto_name); } else { options.onto = @@ -1660,15 +1685,15 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (!options.onto) die(_("Does not point to a valid commit '%s'"), options.onto_name); + fill_branch_base(&options, &branch_base); } - if (options.fork_point > 0) { - struct commit *head = - lookup_commit_reference(the_repository, - &options.orig_head); + if (keep_base && options.reapply_cherry_picks) + options.upstream = options.onto; + + if (options.fork_point > 0) options.restrict_revision = - get_fork_point(options.upstream_name, head); - } + get_fork_point(options.upstream_name, options.orig_head); if (repo_read_index(the_repository) < 0) die(_("could not read index")); @@ -1693,13 +1718,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) * Check if we are already based on onto with linear history, * in which case we could fast-forward without replacing the commits * with new commits recreated by replaying their changes. - * - * Note that can_fast_forward() initializes merge_base, so we have to - * call it before checking allow_preemptive_ff. */ - if (can_fast_forward(options.onto, options.upstream, options.restrict_revision, - &options.orig_head, &merge_base) && - allow_preemptive_ff) { + if (allow_preemptive_ff && + can_fast_forward(options.onto, options.upstream, options.restrict_revision, + options.orig_head, &branch_base)) { int flag; if (!(options.flags & REBASE_FORCE)) { @@ -1740,25 +1762,24 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) struct diff_options opts; if (options.flags & REBASE_VERBOSE) { - if (is_null_oid(&merge_base)) + if (is_null_oid(&branch_base)) printf(_("Changes to %s:\n"), oid_to_hex(&options.onto->object.oid)); else printf(_("Changes from %s to %s:\n"), - oid_to_hex(&merge_base), + oid_to_hex(&branch_base), oid_to_hex(&options.onto->object.oid)); } /* We want color (if set), but no pager */ - diff_setup(&opts); - opts.stat_width = -1; /* use full terminal width */ - opts.stat_graph_width = -1; /* respect statGraphWidth config */ + repo_diff_setup(the_repository, &opts); + init_diffstat_widths(&opts); opts.output_format |= DIFF_FORMAT_SUMMARY | DIFF_FORMAT_DIFFSTAT; opts.detect_rename = DIFF_DETECT_RENAME; diff_setup_done(&opts); - diff_tree_oid(is_null_oid(&merge_base) ? - the_hash_algo->empty_tree : &merge_base, + diff_tree_oid(is_null_oid(&branch_base) ? + the_hash_algo->empty_tree : &branch_base, &options.onto->object.oid, "", &opts); diffcore_std(&opts); diff_flush(&opts); @@ -1772,14 +1793,14 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) printf(_("First, rewinding head to replay your work on top of " "it...\n")); - strbuf_addf(&msg, "%s: checkout %s", - getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.onto_name); + strbuf_addf(&msg, "%s (start): checkout %s", + options.reflog_action, options.onto_name); ropts.oid = &options.onto->object.oid; - ropts.orig_head = &options.orig_head, + ropts.orig_head = &options.orig_head->object.oid, ropts.flags = RESET_HEAD_DETACH | RESET_ORIG_HEAD | RESET_HEAD_RUN_POST_CHECKOUT_HOOK; ropts.head_msg = msg.buf; - ropts.default_reflog_action = DEFAULT_REFLOG_ACTION; + ropts.default_reflog_action = options.reflog_action; if (reset_head(the_repository, &ropts)) die(_("Could not detach HEAD")); strbuf_release(&msg); @@ -1788,19 +1809,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) * If the onto is a proper descendant of the tip of the branch, then * we just fast-forwarded. */ - strbuf_reset(&msg); - if (oideq(&merge_base, &options.orig_head)) { + if (oideq(&branch_base, &options.orig_head->object.oid)) { printf(_("Fast-forwarded %s to %s.\n"), branch_name, options.onto_name); - strbuf_addf(&msg, "rebase finished: %s onto %s", - options.head_name ? options.head_name : "detached HEAD", - oid_to_hex(&options.onto->object.oid)); - memset(&ropts, 0, sizeof(ropts)); - ropts.branch = options.head_name; - ropts.flags = RESET_HEAD_REFS_ONLY; - ropts.head_msg = msg.buf; - reset_head(the_repository, &ropts); - strbuf_release(&msg); + move_to_original_branch(&options); ret = finish_rebase(&options); goto cleanup; } @@ -1810,21 +1822,25 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) (options.restrict_revision ? oid_to_hex(&options.restrict_revision->object.oid) : oid_to_hex(&options.upstream->object.oid)), - oid_to_hex(&options.orig_head)); + oid_to_hex(&options.orig_head->object.oid)); options.revisions = revisions.buf; run_rebase: - ret = run_specific_rebase(&options, action); + ret = run_specific_rebase(&options); cleanup: strbuf_release(&buf); strbuf_release(&revisions); + free(options.reflog_action); free(options.head_name); + strvec_clear(&options.git_am_opts); free(options.gpg_sign_opt); - free(options.cmd); + string_list_clear(&options.exec, 0); free(options.strategy); + string_list_clear(&options.strategy_opts, 0); strbuf_release(&options.git_format_patch_opt); free(squash_onto_name); + free(keep_base_onto_name); return !!ret; } |