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[76.68.143.128]) by smtp.gmail.com with ESMTPSA id a136sm3297503qkc.75.2020.04.03.18.12.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 03 Apr 2020 18:12:12 -0700 (PDT) From: Denton Liu To: Git Mailing List Cc: Alban Gruin , Johannes Schindelin , Junio C Hamano , Phillip Wood Subject: [PATCH v4 13/23] rebase: generify reset_head() Date: Fri, 3 Apr 2020 21:11:26 -0400 Message-Id: X-Mailer: git-send-email 2.26.0.159.g23e2136ad0 In-Reply-To: References: MIME-Version: 1.0 Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org In the future, we plan on lib-ifying reset_head() so we need it to be more generic. Make it more generic by making it accept a `struct repository` argument instead of implicitly using the non-repo functions. Also, make it accept a `const char *default_reflog_action` argument so that the default action of "rebase" isn't hardcoded in. Signed-off-by: Denton Liu --- builtin/rebase.c | 64 ++++++++++++++++++++++++++++-------------------- 1 file changed, 37 insertions(+), 27 deletions(-) diff --git a/builtin/rebase.c b/builtin/rebase.c index 29745176cb..0f650a798e 100644 --- a/builtin/rebase.c +++ b/builtin/rebase.c @@ -28,6 +28,8 @@ #include "sequencer.h" #include "rebase-interactive.h" +#define DEFAULT_REFLOG_ACTION "rebase" + static char const * const builtin_rebase_usage[] = { N_("git rebase [-i] [options] [--exec ] " "[--onto | --keep-base] [ []]"), @@ -767,9 +769,10 @@ static void add_var(struct strbuf *buf, const char *name, const char *value) #define RESET_HEAD_REFS_ONLY (1<<3) #define RESET_ORIG_HEAD (1<<4) -static int reset_head(struct object_id *oid, const char *action, +static int reset_head(struct repository *r, struct object_id *oid, const char *action, const char *switch_to_branch, unsigned flags, - const char *reflog_orig_head, const char *reflog_head) + const char *reflog_orig_head, const char *reflog_head, + const char *default_reflog_action) { unsigned detach_head = flags & RESET_HEAD_DETACH; unsigned reset_hard = flags & RESET_HEAD_HARD; @@ -791,7 +794,7 @@ static int reset_head(struct object_id *oid, const char *action, if (switch_to_branch && !starts_with(switch_to_branch, "refs/")) BUG("Not a fully qualified branch: '%s'", switch_to_branch); - if (!refs_only && hold_locked_index(&lock, LOCK_REPORT_ON_ERROR) < 0) { + if (!refs_only && repo_hold_locked_index(r, &lock, LOCK_REPORT_ON_ERROR) < 0) { ret = -1; goto leave_reset_head; } @@ -810,26 +813,26 @@ static int reset_head(struct object_id *oid, const char *action, memset(&unpack_tree_opts, 0, sizeof(unpack_tree_opts)); setup_unpack_trees_porcelain(&unpack_tree_opts, action); unpack_tree_opts.head_idx = 1; - unpack_tree_opts.src_index = the_repository->index; - unpack_tree_opts.dst_index = the_repository->index; + unpack_tree_opts.src_index = r->index; + unpack_tree_opts.dst_index = r->index; unpack_tree_opts.fn = reset_hard ? oneway_merge : twoway_merge; unpack_tree_opts.update = 1; unpack_tree_opts.merge = 1; if (!detach_head) unpack_tree_opts.reset = 1; - if (repo_read_index_unmerged(the_repository) < 0) { + if (repo_read_index_unmerged(r) < 0) { ret = error(_("could not read index")); goto leave_reset_head; } - if (!reset_hard && !fill_tree_descriptor(the_repository, &desc[nr++], &head_oid)) { + if (!reset_hard && !fill_tree_descriptor(r, &desc[nr++], &head_oid)) { ret = error(_("failed to find tree of %s"), oid_to_hex(&head_oid)); goto leave_reset_head; } - if (!fill_tree_descriptor(the_repository, &desc[nr++], oid)) { + if (!fill_tree_descriptor(r, &desc[nr++], oid)) { ret = error(_("failed to find tree of %s"), oid_to_hex(oid)); goto leave_reset_head; } @@ -840,16 +843,16 @@ static int reset_head(struct object_id *oid, const char *action, } tree = parse_tree_indirect(oid); - prime_cache_tree(the_repository, the_repository->index, tree); + prime_cache_tree(r, r->index, tree); - if (write_locked_index(the_repository->index, &lock, COMMIT_LOCK) < 0) { + if (write_locked_index(r->index, &lock, COMMIT_LOCK) < 0) { ret = error(_("could not write index")); goto leave_reset_head; } reset_head_refs: reflog_action = getenv(GIT_REFLOG_ACTION_ENVIRONMENT); - strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : "rebase"); + strbuf_addf(&msg, "%s: ", reflog_action ? reflog_action : default_reflog_action); prefix_len = msg.len; if (update_orig_head) { @@ -911,8 +914,10 @@ static int move_to_original_branch(struct rebase_options *opts) opts->head_name, oid_to_hex(&opts->onto->object.oid)); strbuf_addf(&head_reflog, "rebase finished: returning to %s", opts->head_name); - ret = reset_head(NULL, "", opts->head_name, RESET_HEAD_REFS_ONLY, - orig_head_reflog.buf, head_reflog.buf); + ret = reset_head(the_repository, NULL, "", opts->head_name, + RESET_HEAD_REFS_ONLY, + orig_head_reflog.buf, head_reflog.buf, + DEFAULT_REFLOG_ACTION); strbuf_release(&orig_head_reflog); strbuf_release(&head_reflog); @@ -1000,8 +1005,9 @@ static int run_am(struct rebase_options *opts) free(rebased_patches); argv_array_clear(&am.args); - reset_head(&opts->orig_head, "checkout", opts->head_name, 0, - "HEAD", NULL); + reset_head(the_repository, &opts->orig_head, "checkout", + opts->head_name, 0, + "HEAD", NULL, DEFAULT_REFLOG_ACTION); error(_("\ngit encountered an error while preparing the " "patches to replay\n" "these revisions:\n" @@ -1656,8 +1662,8 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) rerere_clear(the_repository, &merge_rr); string_list_clear(&merge_rr, 1); - if (reset_head(NULL, "reset", NULL, RESET_HEAD_HARD, - NULL, NULL) < 0) + if (reset_head(the_repository, NULL, "reset", NULL, RESET_HEAD_HARD, + NULL, NULL, DEFAULT_REFLOG_ACTION) < 0) die(_("could not discard worktree changes")); remove_branch_state(the_repository, 0); if (read_basic_state(&options)) @@ -1674,9 +1680,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) if (read_basic_state(&options)) exit(1); - if (reset_head(&options.orig_head, "reset", + if (reset_head(the_repository, &options.orig_head, "reset", options.head_name, RESET_HEAD_HARD, - NULL, NULL) < 0) + NULL, NULL, DEFAULT_REFLOG_ACTION) < 0) die(_("could not move back to %s"), oid_to_hex(&options.orig_head)); remove_branch_state(the_repository, 0); @@ -2068,8 +2074,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) options.state_dir); write_file(autostash, "%s", oid_to_hex(&oid)); printf(_("Created autostash: %s\n"), buf.buf); - if (reset_head(NULL, "reset --hard", - NULL, RESET_HEAD_HARD, NULL, NULL) < 0) + if (reset_head(the_repository, NULL, "reset --hard", + NULL, RESET_HEAD_HARD, NULL, NULL, + DEFAULT_REFLOG_ACTION) < 0) die(_("could not reset --hard")); if (discard_index(the_repository->index) < 0 || @@ -2109,10 +2116,12 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) strbuf_addf(&buf, "%s: checkout %s", getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.switch_to); - if (reset_head(&options.orig_head, "checkout", + if (reset_head(the_repository, + &options.orig_head, "checkout", options.head_name, RESET_HEAD_RUN_POST_CHECKOUT_HOOK, - NULL, buf.buf) < 0) { + NULL, buf.buf, + DEFAULT_REFLOG_ACTION) < 0) { ret = !!error(_("could not switch to " "%s"), options.switch_to); @@ -2184,10 +2193,10 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) strbuf_addf(&msg, "%s: checkout %s", getenv(GIT_REFLOG_ACTION_ENVIRONMENT), options.onto_name); - if (reset_head(&options.onto->object.oid, "checkout", NULL, + if (reset_head(the_repository, &options.onto->object.oid, "checkout", NULL, RESET_HEAD_DETACH | RESET_ORIG_HEAD | RESET_HEAD_RUN_POST_CHECKOUT_HOOK, - NULL, msg.buf)) + NULL, msg.buf, DEFAULT_REFLOG_ACTION)) die(_("Could not detach HEAD")); strbuf_release(&msg); @@ -2202,8 +2211,9 @@ int cmd_rebase(int argc, const char **argv, const char *prefix) strbuf_addf(&msg, "rebase finished: %s onto %s", options.head_name ? options.head_name : "detached HEAD", oid_to_hex(&options.onto->object.oid)); - reset_head(NULL, "Fast-forwarded", options.head_name, - RESET_HEAD_REFS_ONLY, "HEAD", msg.buf); + reset_head(the_repository, NULL, "Fast-forwarded", options.head_name, + RESET_HEAD_REFS_ONLY, "HEAD", msg.buf, + DEFAULT_REFLOG_ACTION); strbuf_release(&msg); ret = !!finish_rebase(&options); goto cleanup;