diff options
Diffstat (limited to 'builtin/log.c')
| -rw-r--r-- | builtin/log.c | 185 |
1 files changed, 180 insertions, 5 deletions
diff --git a/builtin/log.c b/builtin/log.c index 0d738d6..099f4f7 100644 --- a/builtin/log.c +++ b/builtin/log.c @@ -100,6 +100,12 @@ static int log_line_range_callback(const struct option *option, const char *arg, return 0; } +static void init_log_defaults(void) +{ + init_grep_defaults(); + init_diff_ui_defaults(); +} + static void cmd_log_init_defaults(struct rev_info *rev) { if (fmt_pretty) @@ -416,7 +422,7 @@ int cmd_whatchanged(int argc, const char **argv, const char *prefix) struct rev_info rev; struct setup_revision_opt opt; - init_grep_defaults(); + init_log_defaults(); git_config(git_log_config, NULL); init_revisions(&rev, prefix); @@ -527,7 +533,7 @@ int cmd_show(int argc, const char **argv, const char *prefix) struct pathspec match_all; int i, count, ret = 0; - init_grep_defaults(); + init_log_defaults(); git_config(git_log_config, NULL); memset(&match_all, 0, sizeof(match_all)); @@ -608,7 +614,7 @@ int cmd_log_reflog(int argc, const char **argv, const char *prefix) struct rev_info rev; struct setup_revision_opt opt; - init_grep_defaults(); + init_log_defaults(); git_config(git_log_config, NULL); init_revisions(&rev, prefix); @@ -647,7 +653,7 @@ int cmd_log(int argc, const char **argv, const char *prefix) struct rev_info rev; struct setup_revision_opt opt; - init_grep_defaults(); + init_log_defaults(); git_config(git_log_config, NULL); init_revisions(&rev, prefix); @@ -696,6 +702,7 @@ static void add_header(const char *value) #define THREAD_DEEP 2 static int thread; static int do_signoff; +static int base_auto; static const char *signature = git_version_string; static const char *signature_file; static int config_cover_letter; @@ -780,6 +787,10 @@ static int git_format_config(const char *var, const char *value, void *cb) } if (!strcmp(var, "format.outputdirectory")) return git_config_string(&config_output_directory, var, value); + if (!strcmp(var, "format.useautobase")) { + base_auto = git_config_bool(var, value); + return 0; + } return git_log_config(var, value, cb); } @@ -1185,6 +1196,155 @@ static int from_callback(const struct option *opt, const char *arg, int unset) return 0; } +struct base_tree_info { + struct object_id base_commit; + int nr_patch_id, alloc_patch_id; + struct object_id *patch_id; +}; + +static struct commit *get_base_commit(const char *base_commit, + struct commit **list, + int total) +{ + struct commit *base = NULL; + struct commit **rev; + int i = 0, rev_nr = 0; + + if (base_commit && strcmp(base_commit, "auto")) { + base = lookup_commit_reference_by_name(base_commit); + if (!base) + die(_("Unknown commit %s"), base_commit); + } else if ((base_commit && !strcmp(base_commit, "auto")) || base_auto) { + struct branch *curr_branch = branch_get(NULL); + const char *upstream = branch_get_upstream(curr_branch, NULL); + if (upstream) { + struct commit_list *base_list; + struct commit *commit; + unsigned char sha1[20]; + + if (get_sha1(upstream, sha1)) + die(_("Failed to resolve '%s' as a valid ref."), upstream); + commit = lookup_commit_or_die(sha1, "upstream base"); + base_list = get_merge_bases_many(commit, total, list); + /* There should be one and only one merge base. */ + if (!base_list || base_list->next) + die(_("Could not find exact merge base.")); + base = base_list->item; + free_commit_list(base_list); + } else { + die(_("Failed to get upstream, if you want to record base commit automatically,\n" + "please use git branch --set-upstream-to to track a remote branch.\n" + "Or you could specify base commit by --base=<base-commit-id> manually.")); + } + } + + ALLOC_ARRAY(rev, total); + for (i = 0; i < total; i++) + rev[i] = list[i]; + + rev_nr = total; + /* + * Get merge base through pair-wise computations + * and store it in rev[0]. + */ + while (rev_nr > 1) { + for (i = 0; i < rev_nr / 2; i++) { + struct commit_list *merge_base; + merge_base = get_merge_bases(rev[2 * i], rev[2 * i + 1]); + if (!merge_base || merge_base->next) + die(_("Failed to find exact merge base")); + + rev[i] = merge_base->item; + } + + if (rev_nr % 2) + rev[i] = rev[2 * i]; + rev_nr = (rev_nr + 1) / 2; + } + + if (!in_merge_bases(base, rev[0])) + die(_("base commit should be the ancestor of revision list")); + + for (i = 0; i < total; i++) { + if (base == list[i]) + die(_("base commit shouldn't be in revision list")); + } + + free(rev); + return base; +} + +static void prepare_bases(struct base_tree_info *bases, + struct commit *base, + struct commit **list, + int total) +{ + struct commit *commit; + struct rev_info revs; + struct diff_options diffopt; + int i; + + if (!base) + return; + + diff_setup(&diffopt); + DIFF_OPT_SET(&diffopt, RECURSIVE); + diff_setup_done(&diffopt); + + oidcpy(&bases->base_commit, &base->object.oid); + + init_revisions(&revs, NULL); + revs.max_parents = 1; + revs.topo_order = 1; + for (i = 0; i < total; i++) { + list[i]->object.flags &= ~UNINTERESTING; + add_pending_object(&revs, &list[i]->object, "rev_list"); + list[i]->util = (void *)1; + } + base->object.flags |= UNINTERESTING; + add_pending_object(&revs, &base->object, "base"); + + if (prepare_revision_walk(&revs)) + die(_("revision walk setup failed")); + /* + * Traverse the commits list, get prerequisite patch ids + * and stuff them in bases structure. + */ + while ((commit = get_revision(&revs)) != NULL) { + unsigned char sha1[20]; + struct object_id *patch_id; + if (commit->util) + continue; + if (commit_patch_id(commit, &diffopt, sha1)) + die(_("cannot get patch id")); + ALLOC_GROW(bases->patch_id, bases->nr_patch_id + 1, bases->alloc_patch_id); + patch_id = bases->patch_id + bases->nr_patch_id; + hashcpy(patch_id->hash, sha1); + bases->nr_patch_id++; + } +} + +static void print_bases(struct base_tree_info *bases) +{ + int i; + + /* Only do this once, either for the cover or for the first one */ + if (is_null_oid(&bases->base_commit)) + return; + + /* Show the base commit */ + printf("base-commit: %s\n", oid_to_hex(&bases->base_commit)); + + /* Show the prerequisite patches */ + for (i = bases->nr_patch_id - 1; i >= 0; i--) + printf("prerequisite-patch-id: %s\n", oid_to_hex(&bases->patch_id[i])); + + free(bases->patch_id); + bases->nr_patch_id = 0; + bases->alloc_patch_id = 0; + oidclr(&bases->base_commit); +} + int cmd_format_patch(int argc, const char **argv, const char *prefix) { struct commit *commit; @@ -1209,6 +1369,9 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) int reroll_count = -1; char *branch_name = NULL; char *from = NULL; + char *base_commit = NULL; + struct base_tree_info bases; + const struct option builtin_format_patch_options[] = { { OPTION_CALLBACK, 'n', "numbered", &numbered, NULL, N_("use [PATCH n/m] even with a single patch"), @@ -1271,6 +1434,8 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) PARSE_OPT_OPTARG, thread_callback }, OPT_STRING(0, "signature", &signature, N_("signature"), N_("add a signature")), + OPT_STRING(0, "base", &base_commit, N_("base-commit"), + N_("add prerequisite tree info to the patch series")), OPT_FILENAME(0, "signature-file", &signature_file, N_("add a signature from a file")), OPT__QUIET(&quiet, N_("don't print the patch filenames")), @@ -1280,10 +1445,11 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) extra_hdr.strdup_strings = 1; extra_to.strdup_strings = 1; extra_cc.strdup_strings = 1; - init_grep_defaults(); + init_log_defaults(); git_config(git_format_config, NULL); init_revisions(&rev, prefix); rev.commit_format = CMIT_FMT_EMAIL; + rev.expand_tabs_in_log_default = 0; rev.verbose_header = 1; rev.diff = 1; rev.max_parents = 1; @@ -1507,6 +1673,13 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) signature = strbuf_detach(&buf, NULL); } + memset(&bases, 0, sizeof(bases)); + if (base_commit || base_auto) { + struct commit *base = get_base_commit(base_commit, list, nr); + reset_revision_walk(); + prepare_bases(&bases, base, list, nr); + } + if (in_reply_to || thread || cover_letter) rev.ref_message_ids = xcalloc(1, sizeof(struct string_list)); if (in_reply_to) { @@ -1520,6 +1693,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) gen_message_id(&rev, "cover"); make_cover_letter(&rev, use_stdout, origin, nr, list, branch_name, quiet); + print_bases(&bases); total++; start_number--; } @@ -1585,6 +1759,7 @@ int cmd_format_patch(int argc, const char **argv, const char *prefix) rev.mime_boundary); else print_signature(); + print_bases(&bases); } if (!use_stdout) fclose(stdout); |