From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-12.0 required=3.0 tests=AWL,BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI,USER_IN_DEF_DKIM_WL shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 35D421F453 for ; Sun, 27 Jan 2019 19:44:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727059AbfA0Tog (ORCPT ); Sun, 27 Jan 2019 14:44:36 -0500 Received: from mail-it1-f202.google.com ([209.85.166.202]:39252 "EHLO mail-it1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726794AbfA0Tof (ORCPT ); Sun, 27 Jan 2019 14:44:35 -0500 Received: by mail-it1-f202.google.com with SMTP id k133so10721772ite.4 for ; Sun, 27 Jan 2019 11:44:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=hbRrxRg4+mfGHIRGwfnl3uO8TpiBKJKWPkCqPRz1nO4=; b=u5QkOhEK1HwHElxaK+/RNA52NYqSNFkC3Chqh0Dcvivli5tbvrRfLKTuNLvlNGYMI5 i01o5qpibzo+Ozbukh7j4f7J6Hp2EDqzCsMCRHJ0epHYKf6JRT4AG0l4e4KDn1P6JlTh UFopDT/6dU3/q2uei+RYE+sTAy5PbNOR/8vvpby3RmlL/BBHEu3JI/LHoXsKQHpRxXVx vZAWWiGCKlVewnU9jZdbUXupIjs6tbl0Dx5TKpg9zqhg6CG+bIsar7a5ZYFgUYQwQt8U mqsarB+tnbaIzDE5JMKzKyXGI34k3pmLWFxv/sXip6F46fS4vTk76EzEhSm74ADICwQT FP3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=hbRrxRg4+mfGHIRGwfnl3uO8TpiBKJKWPkCqPRz1nO4=; b=WYBkcGHZpoXuzDHAaQmE4LaKznbN4VaXJKq6cdUpz35OejmhHv5ws6RV0pEcFtI0kG cKa4u8c2YP4TSnYhCb5QY2coko2hKrPaPdoZuLQHwD42LeqXJ1E8D718HoPaRR+vzTVS T6UY8ODU1R3lKMLbD02o9g0YOu7AbdAQ7Q0Bn0oK4die6XwHvb4DhMUJDum7qpk4GIt+ Pur0BFPF4mKulOJdbVqd6MnpwB1odgqUlYg9XT8ManbrINB15LC3I4cADDUsK/WgqBcQ 2IMjA5rWHe5XIYnSfEWTfo7VoKdhS+NYlCVv6VtsAzv1WJS6ovLwhUv8XBLXgBG4Dtv1 0WFA== X-Gm-Message-State: AHQUAuZtTzavFQppx4GcXMi8q2qO1JN4rWiVoG/ZNEHzbFMy8f5QpQ1d 53YmgsKCDr6KLsRXwdyO93MkT2NRKSx+dmZWgkgrlu4cU7jBKKa+b6YxjPvXdGkupvToSgGp8TH N/Q5/mru4/0lTDelV1DQqJ2e1u9O4IV1ZbHvXTbs0J/8hTPnsDzy53OYCMA== X-Google-Smtp-Source: ALg8bN7H0i8ouxLyy8xnuRLEb0CG35JHqkG+NtB04ykCr1mxz0iuhhd/4iiL+YglrtX9x7wUZrfyDn7Jg54= X-Received: by 2002:a24:5e92:: with SMTP id h140mr12326451itb.17.1548618273423; Sun, 27 Jan 2019 11:44:33 -0800 (PST) Date: Sun, 27 Jan 2019 11:44:14 -0800 In-Reply-To: <20190127194415.171035-1-sxenos@google.com> Message-Id: <20190127194415.171035-7-sxenos@google.com> Mime-Version: 1.0 References: <20190127194415.171035-1-sxenos@google.com> X-Mailer: git-send-email 2.20.1.495.gaa96b0ce6b-goog Subject: [PATCH v3 7/8] evolve: Implement the git change command From: sxenos@google.com To: git@vger.kernel.org Cc: Stefan Xenos Content-Type: text/plain; charset="UTF-8" Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Stefan Xenos Implement the git change update command, which are sufficient for constructing change graphs. For example, to create a new change (a stable name) that refers to HEAD: git change update -c HEAD To record a rebase or amend in the change graph: git change update -c -r To record a cherry-pick in the change graph: git change update -c -o Signed-off-by: Stefan Xenos --- .gitignore | 1 + Makefile | 1 + builtin.h | 1 + builtin/change.c | 175 +++++++++++++++++++++++++++++++++++++++++++++++ git.c | 1 + 5 files changed, 179 insertions(+) create mode 100644 builtin/change.c diff --git a/.gitignore b/.gitignore index 0d77ea5894..8a084ac38b 100644 --- a/.gitignore +++ b/.gitignore @@ -26,6 +26,7 @@ /git-branch /git-bundle /git-cat-file +/git-change /git-check-attr /git-check-ignore /git-check-mailmap diff --git a/Makefile b/Makefile index a6be1780c5..d6fab30eca 100644 --- a/Makefile +++ b/Makefile @@ -1035,6 +1035,7 @@ BUILTIN_OBJS += builtin/blame.o BUILTIN_OBJS += builtin/branch.o BUILTIN_OBJS += builtin/bundle.o BUILTIN_OBJS += builtin/cat-file.o +BUILTIN_OBJS += builtin/change.o BUILTIN_OBJS += builtin/check-attr.o BUILTIN_OBJS += builtin/check-ignore.o BUILTIN_OBJS += builtin/check-mailmap.o diff --git a/builtin.h b/builtin.h index 6538932e99..d2d39d9da8 100644 --- a/builtin.h +++ b/builtin.h @@ -137,6 +137,7 @@ extern int cmd_blame(int argc, const char **argv, const char *prefix); extern int cmd_branch(int argc, const char **argv, const char *prefix); extern int cmd_bundle(int argc, const char **argv, const char *prefix); extern int cmd_cat_file(int argc, const char **argv, const char *prefix); +extern int cmd_change(int argc, const char **argv, const char *prefix); extern int cmd_checkout(int argc, const char **argv, const char *prefix); extern int cmd_checkout_index(int argc, const char **argv, const char *prefix); extern int cmd_check_attr(int argc, const char **argv, const char *prefix); diff --git a/builtin/change.c b/builtin/change.c new file mode 100644 index 0000000000..ff7eb3b113 --- /dev/null +++ b/builtin/change.c @@ -0,0 +1,175 @@ +#include "builtin.h" +#include "ref-filter.h" +#include "parse-options.h" +#include "metacommit.h" +#include "config.h" + +static const char * const builtin_change_usage[] = { + N_("git change update [--force] [--replace ...] [--origin ...] [--content ]"), + NULL +}; + +static const char * const builtin_update_usage[] = { + N_("git change update [--force] [--replace ...] [--origin ...] [--content ]"), + NULL +}; + +struct update_state { + int options; + const char* change; + const char* content; + struct string_list replace; + struct string_list origin; +}; + +static void init_update_state(struct update_state *state) +{ + memset(state, 0, sizeof(*state)); + state->content = "HEAD"; + string_list_init(&state->replace, 0); + string_list_init(&state->origin, 0); +} + +static void clear_update_state(struct update_state *state) +{ + string_list_clear(&state->replace, 0); + string_list_clear(&state->origin, 0); +} + +static int update_option_parse_replace(const struct option *opt, + const char *arg, int unset) +{ + struct update_state *state = opt->value; + string_list_append(&state->replace, arg); + return 0; +} + +static int update_option_parse_origin(const struct option *opt, + const char *arg, int unset) +{ + struct update_state *state = opt->value; + string_list_append(&state->origin, arg); + return 0; +} + +static int resolve_commit(const char *committish, struct object_id *result) +{ + struct commit *commit; + if (get_oid_committish(committish, result)) + die(_("Failed to resolve '%s' as a valid revision."), committish); + commit = lookup_commit_reference(the_repository, result); + if (!commit) + die(_("Could not parse object '%s'."), committish); + oidcpy(result, &commit->object.oid); + return 0; +} + +static void resolve_commit_list(const struct string_list *commitsish_list, + struct oid_array* result) +{ + int i; + for (i = 0; i < commitsish_list->nr; i++) { + struct string_list_item *item = &commitsish_list->items[i]; + struct object_id next; + resolve_commit(item->string, &next); + oid_array_append(result, &next); + } +} + +/* + * Given the command-line options for the update command, fills in a + * metacommit_data with the corresponding changes. + */ +static void get_metacommit_from_command_line( + const struct update_state* commands, struct metacommit_data *result) +{ + resolve_commit(commands->content, &(result->content)); + resolve_commit_list(&(commands->replace), &(result->replace)); + resolve_commit_list(&(commands->origin), &(result->origin)); +} + +static int perform_update( + struct repository *repo, + const struct update_state *state, + struct strbuf *err) +{ + struct metacommit_data metacommit; + int ret; + + init_metacommit_data(&metacommit); + + get_metacommit_from_command_line(state, &metacommit); + + ret = record_metacommit(repo, &metacommit, state->change, state->options, err); + + clear_metacommit_data(&metacommit); + + return ret; +} + +static int change_update(int argc, const char **argv, const char* prefix) +{ + int result; + int force = 0; + int newchange = 0; + struct strbuf err = STRBUF_INIT; + struct update_state state; + struct option options[] = { + { OPTION_CALLBACK, 'r', "replace", &state, N_("commit"), + N_("marks the given commit as being obsolete"), + 0, update_option_parse_replace }, + { OPTION_CALLBACK, 'o', "origin", &state, N_("commit"), + N_("marks the given commit as being the origin of this commit"), + 0, update_option_parse_origin }, + OPT_BOOL('F', "force", &force, + N_("overwrite an existing change of the same name")), + OPT_STRING('c', "content", &state.content, N_("commit"), + N_("identifies the new content commit for the change")), + OPT_STRING('g', "change", &state.change, N_("commit"), + N_("name of the change to update")), + OPT_BOOL('n', "new", &newchange, + N_("create a new change - do not append to any existing change")), + OPT_END() + }; + + init_update_state(&state); + + argc = parse_options(argc, argv, prefix, options, builtin_update_usage, 0); + + if (force) state.options |= UPDATE_OPTION_FORCE; + if (newchange) state.options |= UPDATE_OPTION_NOAPPEND; + + result = perform_update(the_repository, &state, &err); + + if (result < 0) { + error("%s", err.buf); + strbuf_release(&err); + } + + clear_update_state(&state); + + return result; +} + +int cmd_change(int argc, const char **argv, const char *prefix) +{ + // No options permitted before subcommand currently + struct option options[] = { + OPT_END() + }; + int result = 1; + + argc = parse_options(argc, argv, prefix, options, builtin_change_usage, + PARSE_OPT_STOP_AT_NON_OPTION); + + if (argc < 1) + usage_with_options(builtin_change_usage, options); + else if (!strcmp(argv[0], "update")) + result = change_update(argc, argv, prefix); + else { + error(_("Unknown subcommand: %s"), argv[0]); + usage_with_options(builtin_change_usage, options); + } + + return result ? 1 : 0; +} diff --git a/git.c b/git.c index 0ce0e13f0f..f59f887238 100644 --- a/git.c +++ b/git.c @@ -453,6 +453,7 @@ static struct cmd_struct commands[] = { { "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG }, { "bundle", cmd_bundle, RUN_SETUP_GENTLY | NO_PARSEOPT }, { "cat-file", cmd_cat_file, RUN_SETUP }, + { "change", cmd_change, RUN_SETUP }, { "check-attr", cmd_check_attr, RUN_SETUP }, { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE }, { "check-mailmap", cmd_check_mailmap, RUN_SETUP }, -- 2.20.1.495.gaa96b0ce6b-goog