Squashed 'third_party/git/' content from commit cb71568594
git-subtree-dir: third_party/git git-subtree-split: cb715685942260375e1eb8153b0768a376e4ece7
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					 3629 changed files with 1139935 additions and 0 deletions
				
			
		
							
								
								
									
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								log-tree.c
									
										
									
									
									
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								log-tree.c
									
										
									
									
									
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							|  | @ -0,0 +1,939 @@ | |||
| #include "cache.h" | ||||
| #include "config.h" | ||||
| #include "diff.h" | ||||
| #include "object-store.h" | ||||
| #include "repository.h" | ||||
| #include "commit.h" | ||||
| #include "tag.h" | ||||
| #include "graph.h" | ||||
| #include "log-tree.h" | ||||
| #include "reflog-walk.h" | ||||
| #include "refs.h" | ||||
| #include "string-list.h" | ||||
| #include "color.h" | ||||
| #include "gpg-interface.h" | ||||
| #include "sequencer.h" | ||||
| #include "line-log.h" | ||||
| #include "help.h" | ||||
| #include "interdiff.h" | ||||
| #include "range-diff.h" | ||||
| 
 | ||||
| static struct decoration name_decoration = { "object names" }; | ||||
| static int decoration_loaded; | ||||
| static int decoration_flags; | ||||
| 
 | ||||
| static char decoration_colors[][COLOR_MAXLEN] = { | ||||
| 	GIT_COLOR_RESET, | ||||
| 	GIT_COLOR_BOLD_GREEN,	/* REF_LOCAL */ | ||||
| 	GIT_COLOR_BOLD_RED,	/* REF_REMOTE */ | ||||
| 	GIT_COLOR_BOLD_YELLOW,	/* REF_TAG */ | ||||
| 	GIT_COLOR_BOLD_MAGENTA,	/* REF_STASH */ | ||||
| 	GIT_COLOR_BOLD_CYAN,	/* REF_HEAD */ | ||||
| 	GIT_COLOR_BOLD_BLUE,	/* GRAFTED */ | ||||
| }; | ||||
| 
 | ||||
| static const char *color_decorate_slots[] = { | ||||
| 	[DECORATION_REF_LOCAL]	= "branch", | ||||
| 	[DECORATION_REF_REMOTE] = "remoteBranch", | ||||
| 	[DECORATION_REF_TAG]	= "tag", | ||||
| 	[DECORATION_REF_STASH]	= "stash", | ||||
| 	[DECORATION_REF_HEAD]	= "HEAD", | ||||
| 	[DECORATION_GRAFTED]	= "grafted", | ||||
| }; | ||||
| 
 | ||||
| static const char *decorate_get_color(int decorate_use_color, enum decoration_type ix) | ||||
| { | ||||
| 	if (want_color(decorate_use_color)) | ||||
| 		return decoration_colors[ix]; | ||||
| 	return ""; | ||||
| } | ||||
| 
 | ||||
| define_list_config_array(color_decorate_slots); | ||||
| 
 | ||||
| int parse_decorate_color_config(const char *var, const char *slot_name, const char *value) | ||||
| { | ||||
| 	int slot = LOOKUP_CONFIG(color_decorate_slots, slot_name); | ||||
| 	if (slot < 0) | ||||
| 		return 0; | ||||
| 	if (!value) | ||||
| 		return config_error_nonbool(var); | ||||
| 	return color_parse(value, decoration_colors[slot]); | ||||
| } | ||||
| 
 | ||||
| /*
 | ||||
|  * log-tree.c uses DIFF_OPT_TST for determining whether to use color | ||||
|  * for showing the commit sha1, use the same check for --decorate | ||||
|  */ | ||||
| #define decorate_get_color_opt(o, ix) \ | ||||
| 	decorate_get_color((o)->use_color, ix) | ||||
| 
 | ||||
| void add_name_decoration(enum decoration_type type, const char *name, struct object *obj) | ||||
| { | ||||
| 	struct name_decoration *res; | ||||
| 	FLEX_ALLOC_STR(res, name, name); | ||||
| 	res->type = type; | ||||
| 	res->next = add_decoration(&name_decoration, obj, res); | ||||
| } | ||||
| 
 | ||||
| const struct name_decoration *get_name_decoration(const struct object *obj) | ||||
| { | ||||
| 	return lookup_decoration(&name_decoration, obj); | ||||
| } | ||||
| 
 | ||||
| static int add_ref_decoration(const char *refname, const struct object_id *oid, | ||||
| 			      int flags, void *cb_data) | ||||
| { | ||||
| 	struct object *obj; | ||||
| 	enum decoration_type type = DECORATION_NONE; | ||||
| 	struct decoration_filter *filter = (struct decoration_filter *)cb_data; | ||||
| 
 | ||||
| 	if (filter && !ref_filter_match(refname, | ||||
| 			      filter->include_ref_pattern, | ||||
| 			      filter->exclude_ref_pattern)) | ||||
| 		return 0; | ||||
| 
 | ||||
| 	if (starts_with(refname, git_replace_ref_base)) { | ||||
| 		struct object_id original_oid; | ||||
| 		if (!read_replace_refs) | ||||
| 			return 0; | ||||
| 		if (get_oid_hex(refname + strlen(git_replace_ref_base), | ||||
| 				&original_oid)) { | ||||
| 			warning("invalid replace ref %s", refname); | ||||
| 			return 0; | ||||
| 		} | ||||
| 		obj = parse_object(the_repository, &original_oid); | ||||
| 		if (obj) | ||||
| 			add_name_decoration(DECORATION_GRAFTED, "replaced", obj); | ||||
| 		return 0; | ||||
| 	} | ||||
| 
 | ||||
| 	obj = parse_object(the_repository, oid); | ||||
| 	if (!obj) | ||||
| 		return 0; | ||||
| 
 | ||||
| 	if (starts_with(refname, "refs/heads/")) | ||||
| 		type = DECORATION_REF_LOCAL; | ||||
| 	else if (starts_with(refname, "refs/remotes/")) | ||||
| 		type = DECORATION_REF_REMOTE; | ||||
| 	else if (starts_with(refname, "refs/tags/")) | ||||
| 		type = DECORATION_REF_TAG; | ||||
| 	else if (!strcmp(refname, "refs/stash")) | ||||
| 		type = DECORATION_REF_STASH; | ||||
| 	else if (!strcmp(refname, "HEAD")) | ||||
| 		type = DECORATION_REF_HEAD; | ||||
| 
 | ||||
| 	add_name_decoration(type, refname, obj); | ||||
| 	while (obj->type == OBJ_TAG) { | ||||
| 		obj = ((struct tag *)obj)->tagged; | ||||
| 		if (!obj) | ||||
| 			break; | ||||
| 		if (!obj->parsed) | ||||
| 			parse_object(the_repository, &obj->oid); | ||||
| 		add_name_decoration(DECORATION_REF_TAG, refname, obj); | ||||
| 	} | ||||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static int add_graft_decoration(const struct commit_graft *graft, void *cb_data) | ||||
| { | ||||
| 	struct commit *commit = lookup_commit(the_repository, &graft->oid); | ||||
| 	if (!commit) | ||||
| 		return 0; | ||||
| 	add_name_decoration(DECORATION_GRAFTED, "grafted", &commit->object); | ||||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| void load_ref_decorations(struct decoration_filter *filter, int flags) | ||||
| { | ||||
| 	if (!decoration_loaded) { | ||||
| 		if (filter) { | ||||
| 			struct string_list_item *item; | ||||
| 			for_each_string_list_item(item, filter->exclude_ref_pattern) { | ||||
| 				normalize_glob_ref(item, NULL, item->string); | ||||
| 			} | ||||
| 			for_each_string_list_item(item, filter->include_ref_pattern) { | ||||
| 				normalize_glob_ref(item, NULL, item->string); | ||||
| 			} | ||||
| 		} | ||||
| 		decoration_loaded = 1; | ||||
| 		decoration_flags = flags; | ||||
| 		for_each_ref(add_ref_decoration, filter); | ||||
| 		head_ref(add_ref_decoration, filter); | ||||
| 		for_each_commit_graft(add_graft_decoration, filter); | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| static void show_parents(struct commit *commit, int abbrev, FILE *file) | ||||
| { | ||||
| 	struct commit_list *p; | ||||
| 	for (p = commit->parents; p ; p = p->next) { | ||||
| 		struct commit *parent = p->item; | ||||
| 		fprintf(file, " %s", find_unique_abbrev(&parent->object.oid, abbrev)); | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| static void show_children(struct rev_info *opt, struct commit *commit, int abbrev) | ||||
| { | ||||
| 	struct commit_list *p = lookup_decoration(&opt->children, &commit->object); | ||||
| 	for ( ; p; p = p->next) { | ||||
| 		fprintf(opt->diffopt.file, " %s", find_unique_abbrev(&p->item->object.oid, abbrev)); | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| /*
 | ||||
|  * Do we have HEAD in the output, and also the branch it points at? | ||||
|  * If so, find that decoration entry for that current branch. | ||||
|  */ | ||||
| static const struct name_decoration *current_pointed_by_HEAD(const struct name_decoration *decoration) | ||||
| { | ||||
| 	const struct name_decoration *list, *head = NULL; | ||||
| 	const char *branch_name = NULL; | ||||
| 	int rru_flags; | ||||
| 
 | ||||
| 	/* First find HEAD */ | ||||
| 	for (list = decoration; list; list = list->next) | ||||
| 		if (list->type == DECORATION_REF_HEAD) { | ||||
| 			head = list; | ||||
| 			break; | ||||
| 		} | ||||
| 	if (!head) | ||||
| 		return NULL; | ||||
| 
 | ||||
| 	/* Now resolve and find the matching current branch */ | ||||
| 	branch_name = resolve_ref_unsafe("HEAD", 0, NULL, &rru_flags); | ||||
| 	if (!branch_name || !(rru_flags & REF_ISSYMREF)) | ||||
| 		return NULL; | ||||
| 
 | ||||
| 	if (!starts_with(branch_name, "refs/")) | ||||
| 		return NULL; | ||||
| 
 | ||||
| 	/* OK, do we have that ref in the list? */ | ||||
| 	for (list = decoration; list; list = list->next) | ||||
| 		if ((list->type == DECORATION_REF_LOCAL) && | ||||
| 		    !strcmp(branch_name, list->name)) { | ||||
| 			return list; | ||||
| 		} | ||||
| 
 | ||||
| 	return NULL; | ||||
| } | ||||
| 
 | ||||
| static void show_name(struct strbuf *sb, const struct name_decoration *decoration) | ||||
| { | ||||
| 	if (decoration_flags == DECORATE_SHORT_REFS) | ||||
| 		strbuf_addstr(sb, prettify_refname(decoration->name)); | ||||
| 	else | ||||
| 		strbuf_addstr(sb, decoration->name); | ||||
| } | ||||
| 
 | ||||
| /*
 | ||||
|  * The caller makes sure there is no funny color before calling. | ||||
|  * format_decorations_extended makes sure the same after return. | ||||
|  */ | ||||
| void format_decorations_extended(struct strbuf *sb, | ||||
| 			const struct commit *commit, | ||||
| 			int use_color, | ||||
| 			const char *prefix, | ||||
| 			const char *separator, | ||||
| 			const char *suffix) | ||||
| { | ||||
| 	const struct name_decoration *decoration; | ||||
| 	const struct name_decoration *current_and_HEAD; | ||||
| 	const char *color_commit = | ||||
| 		diff_get_color(use_color, DIFF_COMMIT); | ||||
| 	const char *color_reset = | ||||
| 		decorate_get_color(use_color, DECORATION_NONE); | ||||
| 
 | ||||
| 	decoration = get_name_decoration(&commit->object); | ||||
| 	if (!decoration) | ||||
| 		return; | ||||
| 
 | ||||
| 	current_and_HEAD = current_pointed_by_HEAD(decoration); | ||||
| 	while (decoration) { | ||||
| 		/*
 | ||||
| 		 * When both current and HEAD are there, only | ||||
| 		 * show HEAD->current where HEAD would have | ||||
| 		 * appeared, skipping the entry for current. | ||||
| 		 */ | ||||
| 		if (decoration != current_and_HEAD) { | ||||
| 			strbuf_addstr(sb, color_commit); | ||||
| 			strbuf_addstr(sb, prefix); | ||||
| 			strbuf_addstr(sb, color_reset); | ||||
| 			strbuf_addstr(sb, decorate_get_color(use_color, decoration->type)); | ||||
| 			if (decoration->type == DECORATION_REF_TAG) | ||||
| 				strbuf_addstr(sb, "tag: "); | ||||
| 
 | ||||
| 			show_name(sb, decoration); | ||||
| 
 | ||||
| 			if (current_and_HEAD && | ||||
| 			    decoration->type == DECORATION_REF_HEAD) { | ||||
| 				strbuf_addstr(sb, " -> "); | ||||
| 				strbuf_addstr(sb, color_reset); | ||||
| 				strbuf_addstr(sb, decorate_get_color(use_color, current_and_HEAD->type)); | ||||
| 				show_name(sb, current_and_HEAD); | ||||
| 			} | ||||
| 			strbuf_addstr(sb, color_reset); | ||||
| 
 | ||||
| 			prefix = separator; | ||||
| 		} | ||||
| 		decoration = decoration->next; | ||||
| 	} | ||||
| 	strbuf_addstr(sb, color_commit); | ||||
| 	strbuf_addstr(sb, suffix); | ||||
| 	strbuf_addstr(sb, color_reset); | ||||
| } | ||||
| 
 | ||||
| void show_decorations(struct rev_info *opt, struct commit *commit) | ||||
| { | ||||
| 	struct strbuf sb = STRBUF_INIT; | ||||
| 
 | ||||
| 	if (opt->sources) { | ||||
| 		char **slot = revision_sources_peek(opt->sources, commit); | ||||
| 
 | ||||
| 		if (slot && *slot) | ||||
| 			fprintf(opt->diffopt.file, "\t%s", *slot); | ||||
| 	} | ||||
| 	if (!opt->show_decorations) | ||||
| 		return; | ||||
| 	format_decorations(&sb, commit, opt->diffopt.use_color); | ||||
| 	fputs(sb.buf, opt->diffopt.file); | ||||
| 	strbuf_release(&sb); | ||||
| } | ||||
| 
 | ||||
| static unsigned int digits_in_number(unsigned int number) | ||||
| { | ||||
| 	unsigned int i = 10, result = 1; | ||||
| 	while (i <= number) { | ||||
| 		i *= 10; | ||||
| 		result++; | ||||
| 	} | ||||
| 	return result; | ||||
| } | ||||
| 
 | ||||
| void fmt_output_subject(struct strbuf *filename, | ||||
| 			const char *subject, | ||||
| 			struct rev_info *info) | ||||
| { | ||||
| 	const char *suffix = info->patch_suffix; | ||||
| 	int nr = info->nr; | ||||
| 	int start_len = filename->len; | ||||
| 	int max_len = start_len + FORMAT_PATCH_NAME_MAX - (strlen(suffix) + 1); | ||||
| 
 | ||||
| 	if (0 < info->reroll_count) | ||||
| 		strbuf_addf(filename, "v%d-", info->reroll_count); | ||||
| 	strbuf_addf(filename, "%04d-%s", nr, subject); | ||||
| 
 | ||||
| 	if (max_len < filename->len) | ||||
| 		strbuf_setlen(filename, max_len); | ||||
| 	strbuf_addstr(filename, suffix); | ||||
| } | ||||
| 
 | ||||
| void fmt_output_commit(struct strbuf *filename, | ||||
| 		       struct commit *commit, | ||||
| 		       struct rev_info *info) | ||||
| { | ||||
| 	struct pretty_print_context ctx = {0}; | ||||
| 	struct strbuf subject = STRBUF_INIT; | ||||
| 
 | ||||
| 	format_commit_message(commit, "%f", &subject, &ctx); | ||||
| 	fmt_output_subject(filename, subject.buf, info); | ||||
| 	strbuf_release(&subject); | ||||
| } | ||||
| 
 | ||||
| void fmt_output_email_subject(struct strbuf *sb, struct rev_info *opt) | ||||
| { | ||||
| 	if (opt->total > 0) { | ||||
| 		strbuf_addf(sb, "Subject: [%s%s%0*d/%d] ", | ||||
| 			    opt->subject_prefix, | ||||
| 			    *opt->subject_prefix ? " " : "", | ||||
| 			    digits_in_number(opt->total), | ||||
| 			    opt->nr, opt->total); | ||||
| 	} else if (opt->total == 0 && opt->subject_prefix && *opt->subject_prefix) { | ||||
| 		strbuf_addf(sb, "Subject: [%s] ", | ||||
| 			    opt->subject_prefix); | ||||
| 	} else { | ||||
| 		strbuf_addstr(sb, "Subject: "); | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| void log_write_email_headers(struct rev_info *opt, struct commit *commit, | ||||
| 			     const char **extra_headers_p, | ||||
| 			     int *need_8bit_cte_p, | ||||
| 			     int maybe_multipart) | ||||
| { | ||||
| 	const char *extra_headers = opt->extra_headers; | ||||
| 	const char *name = oid_to_hex(opt->zero_commit ? | ||||
| 				      &null_oid : &commit->object.oid); | ||||
| 
 | ||||
| 	*need_8bit_cte_p = 0; /* unknown */ | ||||
| 
 | ||||
| 	fprintf(opt->diffopt.file, "From %s Mon Sep 17 00:00:00 2001\n", name); | ||||
| 	graph_show_oneline(opt->graph); | ||||
| 	if (opt->message_id) { | ||||
| 		fprintf(opt->diffopt.file, "Message-Id: <%s>\n", opt->message_id); | ||||
| 		graph_show_oneline(opt->graph); | ||||
| 	} | ||||
| 	if (opt->ref_message_ids && opt->ref_message_ids->nr > 0) { | ||||
| 		int i, n; | ||||
| 		n = opt->ref_message_ids->nr; | ||||
| 		fprintf(opt->diffopt.file, "In-Reply-To: <%s>\n", opt->ref_message_ids->items[n-1].string); | ||||
| 		for (i = 0; i < n; i++) | ||||
| 			fprintf(opt->diffopt.file, "%s<%s>\n", (i > 0 ? "\t" : "References: "), | ||||
| 			       opt->ref_message_ids->items[i].string); | ||||
| 		graph_show_oneline(opt->graph); | ||||
| 	} | ||||
| 	if (opt->mime_boundary && maybe_multipart) { | ||||
| 		static struct strbuf subject_buffer = STRBUF_INIT; | ||||
| 		static struct strbuf buffer = STRBUF_INIT; | ||||
| 		struct strbuf filename =  STRBUF_INIT; | ||||
| 		*need_8bit_cte_p = -1; /* NEVER */ | ||||
| 
 | ||||
| 		strbuf_reset(&subject_buffer); | ||||
| 		strbuf_reset(&buffer); | ||||
| 
 | ||||
| 		strbuf_addf(&subject_buffer, | ||||
| 			 "%s" | ||||
| 			 "MIME-Version: 1.0\n" | ||||
| 			 "Content-Type: multipart/mixed;" | ||||
| 			 " boundary=\"%s%s\"\n" | ||||
| 			 "\n" | ||||
| 			 "This is a multi-part message in MIME " | ||||
| 			 "format.\n" | ||||
| 			 "--%s%s\n" | ||||
| 			 "Content-Type: text/plain; " | ||||
| 			 "charset=UTF-8; format=fixed\n" | ||||
| 			 "Content-Transfer-Encoding: 8bit\n\n", | ||||
| 			 extra_headers ? extra_headers : "", | ||||
| 			 mime_boundary_leader, opt->mime_boundary, | ||||
| 			 mime_boundary_leader, opt->mime_boundary); | ||||
| 		extra_headers = subject_buffer.buf; | ||||
| 
 | ||||
| 		if (opt->numbered_files) | ||||
| 			strbuf_addf(&filename, "%d", opt->nr); | ||||
| 		else | ||||
| 			fmt_output_commit(&filename, commit, opt); | ||||
| 		strbuf_addf(&buffer, | ||||
| 			 "\n--%s%s\n" | ||||
| 			 "Content-Type: text/x-patch;" | ||||
| 			 " name=\"%s\"\n" | ||||
| 			 "Content-Transfer-Encoding: 8bit\n" | ||||
| 			 "Content-Disposition: %s;" | ||||
| 			 " filename=\"%s\"\n\n", | ||||
| 			 mime_boundary_leader, opt->mime_boundary, | ||||
| 			 filename.buf, | ||||
| 			 opt->no_inline ? "attachment" : "inline", | ||||
| 			 filename.buf); | ||||
| 		opt->diffopt.stat_sep = buffer.buf; | ||||
| 		strbuf_release(&filename); | ||||
| 	} | ||||
| 	*extra_headers_p = extra_headers; | ||||
| } | ||||
| 
 | ||||
| static void show_sig_lines(struct rev_info *opt, int status, const char *bol) | ||||
| { | ||||
| 	const char *color, *reset, *eol; | ||||
| 
 | ||||
| 	color = diff_get_color_opt(&opt->diffopt, | ||||
| 				   status ? DIFF_WHITESPACE : DIFF_FRAGINFO); | ||||
| 	reset = diff_get_color_opt(&opt->diffopt, DIFF_RESET); | ||||
| 	while (*bol) { | ||||
| 		eol = strchrnul(bol, '\n'); | ||||
| 		fprintf(opt->diffopt.file, "%s%.*s%s%s", color, (int)(eol - bol), bol, reset, | ||||
| 		       *eol ? "\n" : ""); | ||||
| 		graph_show_oneline(opt->graph); | ||||
| 		bol = (*eol) ? (eol + 1) : eol; | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| static void show_signature(struct rev_info *opt, struct commit *commit) | ||||
| { | ||||
| 	struct strbuf payload = STRBUF_INIT; | ||||
| 	struct strbuf signature = STRBUF_INIT; | ||||
| 	struct strbuf gpg_output = STRBUF_INIT; | ||||
| 	int status; | ||||
| 
 | ||||
| 	if (parse_signed_commit(commit, &payload, &signature) <= 0) | ||||
| 		goto out; | ||||
| 
 | ||||
| 	status = verify_signed_buffer(payload.buf, payload.len, | ||||
| 				      signature.buf, signature.len, | ||||
| 				      &gpg_output, NULL); | ||||
| 	if (status && !gpg_output.len) | ||||
| 		strbuf_addstr(&gpg_output, "No signature\n"); | ||||
| 
 | ||||
| 	show_sig_lines(opt, status, gpg_output.buf); | ||||
| 
 | ||||
|  out: | ||||
| 	strbuf_release(&gpg_output); | ||||
| 	strbuf_release(&payload); | ||||
| 	strbuf_release(&signature); | ||||
| } | ||||
| 
 | ||||
| static int which_parent(const struct object_id *oid, const struct commit *commit) | ||||
| { | ||||
| 	int nth; | ||||
| 	const struct commit_list *parent; | ||||
| 
 | ||||
| 	for (nth = 0, parent = commit->parents; parent; parent = parent->next) { | ||||
| 		if (oideq(&parent->item->object.oid, oid)) | ||||
| 			return nth; | ||||
| 		nth++; | ||||
| 	} | ||||
| 	return -1; | ||||
| } | ||||
| 
 | ||||
| static int is_common_merge(const struct commit *commit) | ||||
| { | ||||
| 	return (commit->parents | ||||
| 		&& commit->parents->next | ||||
| 		&& !commit->parents->next->next); | ||||
| } | ||||
| 
 | ||||
| static int show_one_mergetag(struct commit *commit, | ||||
| 			     struct commit_extra_header *extra, | ||||
| 			     void *data) | ||||
| { | ||||
| 	struct rev_info *opt = (struct rev_info *)data; | ||||
| 	struct object_id oid; | ||||
| 	struct tag *tag; | ||||
| 	struct strbuf verify_message; | ||||
| 	int status, nth; | ||||
| 	size_t payload_size, gpg_message_offset; | ||||
| 
 | ||||
| 	hash_object_file(extra->value, extra->len, type_name(OBJ_TAG), &oid); | ||||
| 	tag = lookup_tag(the_repository, &oid); | ||||
| 	if (!tag) | ||||
| 		return -1; /* error message already given */ | ||||
| 
 | ||||
| 	strbuf_init(&verify_message, 256); | ||||
| 	if (parse_tag_buffer(the_repository, tag, extra->value, extra->len)) | ||||
| 		strbuf_addstr(&verify_message, "malformed mergetag\n"); | ||||
| 	else if (is_common_merge(commit) && | ||||
| 		 oideq(&tag->tagged->oid, | ||||
| 		       &commit->parents->next->item->object.oid)) | ||||
| 		strbuf_addf(&verify_message, | ||||
| 			    "merged tag '%s'\n", tag->tag); | ||||
| 	else if ((nth = which_parent(&tag->tagged->oid, commit)) < 0) | ||||
| 		strbuf_addf(&verify_message, "tag %s names a non-parent %s\n", | ||||
| 				    tag->tag, tag->tagged->oid.hash); | ||||
| 	else | ||||
| 		strbuf_addf(&verify_message, | ||||
| 			    "parent #%d, tagged '%s'\n", nth + 1, tag->tag); | ||||
| 	gpg_message_offset = verify_message.len; | ||||
| 
 | ||||
| 	payload_size = parse_signature(extra->value, extra->len); | ||||
| 	status = -1; | ||||
| 	if (extra->len > payload_size) { | ||||
| 		/* could have a good signature */ | ||||
| 		if (!verify_signed_buffer(extra->value, payload_size, | ||||
| 					  extra->value + payload_size, | ||||
| 					  extra->len - payload_size, | ||||
| 					  &verify_message, NULL)) | ||||
| 			status = 0; /* good */ | ||||
| 		else if (verify_message.len <= gpg_message_offset) | ||||
| 			strbuf_addstr(&verify_message, "No signature\n"); | ||||
| 		/* otherwise we couldn't verify, which is shown as bad */ | ||||
| 	} | ||||
| 
 | ||||
| 	show_sig_lines(opt, status, verify_message.buf); | ||||
| 	strbuf_release(&verify_message); | ||||
| 	return 0; | ||||
| } | ||||
| 
 | ||||
| static int show_mergetag(struct rev_info *opt, struct commit *commit) | ||||
| { | ||||
| 	return for_each_mergetag(show_one_mergetag, commit, opt); | ||||
| } | ||||
| 
 | ||||
| static void next_commentary_block(struct rev_info *opt, struct strbuf *sb) | ||||
| { | ||||
| 	const char *x = opt->shown_dashes ? "\n" : "---\n"; | ||||
| 	if (sb) | ||||
| 		strbuf_addstr(sb, x); | ||||
| 	else | ||||
| 		fputs(x, opt->diffopt.file); | ||||
| 	opt->shown_dashes = 1; | ||||
| } | ||||
| 
 | ||||
| void show_log(struct rev_info *opt) | ||||
| { | ||||
| 	struct strbuf msgbuf = STRBUF_INIT; | ||||
| 	struct log_info *log = opt->loginfo; | ||||
| 	struct commit *commit = log->commit, *parent = log->parent; | ||||
| 	int abbrev_commit = opt->abbrev_commit ? opt->abbrev : the_hash_algo->hexsz; | ||||
| 	const char *extra_headers = opt->extra_headers; | ||||
| 	struct pretty_print_context ctx = {0}; | ||||
| 
 | ||||
| 	opt->loginfo = NULL; | ||||
| 	if (!opt->verbose_header) { | ||||
| 		graph_show_commit(opt->graph); | ||||
| 
 | ||||
| 		if (!opt->graph) | ||||
| 			put_revision_mark(opt, commit); | ||||
| 		fputs(find_unique_abbrev(&commit->object.oid, abbrev_commit), opt->diffopt.file); | ||||
| 		if (opt->print_parents) | ||||
| 			show_parents(commit, abbrev_commit, opt->diffopt.file); | ||||
| 		if (opt->children.name) | ||||
| 			show_children(opt, commit, abbrev_commit); | ||||
| 		show_decorations(opt, commit); | ||||
| 		if (opt->graph && !graph_is_commit_finished(opt->graph)) { | ||||
| 			putc('\n', opt->diffopt.file); | ||||
| 			graph_show_remainder(opt->graph); | ||||
| 		} | ||||
| 		putc(opt->diffopt.line_termination, opt->diffopt.file); | ||||
| 		return; | ||||
| 	} | ||||
| 
 | ||||
| 	/*
 | ||||
| 	 * If use_terminator is set, we already handled any record termination | ||||
| 	 * at the end of the last record. | ||||
| 	 * Otherwise, add a diffopt.line_termination character before all | ||||
| 	 * entries but the first.  (IOW, as a separator between entries) | ||||
| 	 */ | ||||
| 	if (opt->shown_one && !opt->use_terminator) { | ||||
| 		/*
 | ||||
| 		 * If entries are separated by a newline, the output | ||||
| 		 * should look human-readable.  If the last entry ended | ||||
| 		 * with a newline, print the graph output before this | ||||
| 		 * newline.  Otherwise it will end up as a completely blank | ||||
| 		 * line and will look like a gap in the graph. | ||||
| 		 * | ||||
| 		 * If the entry separator is not a newline, the output is | ||||
| 		 * primarily intended for programmatic consumption, and we | ||||
| 		 * never want the extra graph output before the entry | ||||
| 		 * separator. | ||||
| 		 */ | ||||
| 		if (opt->diffopt.line_termination == '\n' && | ||||
| 		    !opt->missing_newline) | ||||
| 			graph_show_padding(opt->graph); | ||||
| 		putc(opt->diffopt.line_termination, opt->diffopt.file); | ||||
| 	} | ||||
| 	opt->shown_one = 1; | ||||
| 
 | ||||
| 	/*
 | ||||
| 	 * If the history graph was requested, | ||||
| 	 * print the graph, up to this commit's line | ||||
| 	 */ | ||||
| 	graph_show_commit(opt->graph); | ||||
| 
 | ||||
| 	/*
 | ||||
| 	 * Print header line of header.. | ||||
| 	 */ | ||||
| 
 | ||||
| 	if (cmit_fmt_is_mail(opt->commit_format)) { | ||||
| 		log_write_email_headers(opt, commit, &extra_headers, | ||||
| 					&ctx.need_8bit_cte, 1); | ||||
| 		ctx.rev = opt; | ||||
| 		ctx.print_email_subject = 1; | ||||
| 	} else if (opt->commit_format != CMIT_FMT_USERFORMAT) { | ||||
| 		fputs(diff_get_color_opt(&opt->diffopt, DIFF_COMMIT), opt->diffopt.file); | ||||
| 		if (opt->commit_format != CMIT_FMT_ONELINE) | ||||
| 			fputs("commit ", opt->diffopt.file); | ||||
| 
 | ||||
| 		if (!opt->graph) | ||||
| 			put_revision_mark(opt, commit); | ||||
| 		fputs(find_unique_abbrev(&commit->object.oid, | ||||
| 					 abbrev_commit), | ||||
| 		      opt->diffopt.file); | ||||
| 		if (opt->print_parents) | ||||
| 			show_parents(commit, abbrev_commit, opt->diffopt.file); | ||||
| 		if (opt->children.name) | ||||
| 			show_children(opt, commit, abbrev_commit); | ||||
| 		if (parent) | ||||
| 			fprintf(opt->diffopt.file, " (from %s)", | ||||
| 			       find_unique_abbrev(&parent->object.oid, abbrev_commit)); | ||||
| 		fputs(diff_get_color_opt(&opt->diffopt, DIFF_RESET), opt->diffopt.file); | ||||
| 		show_decorations(opt, commit); | ||||
| 		if (opt->commit_format == CMIT_FMT_ONELINE) { | ||||
| 			putc(' ', opt->diffopt.file); | ||||
| 		} else { | ||||
| 			putc('\n', opt->diffopt.file); | ||||
| 			graph_show_oneline(opt->graph); | ||||
| 		} | ||||
| 		if (opt->reflog_info) { | ||||
| 			/*
 | ||||
| 			 * setup_revisions() ensures that opt->reflog_info | ||||
| 			 * and opt->graph cannot both be set, | ||||
| 			 * so we don't need to worry about printing the | ||||
| 			 * graph info here. | ||||
| 			 */ | ||||
| 			show_reflog_message(opt->reflog_info, | ||||
| 					    opt->commit_format == CMIT_FMT_ONELINE, | ||||
| 					    &opt->date_mode, | ||||
| 					    opt->date_mode_explicit); | ||||
| 			if (opt->commit_format == CMIT_FMT_ONELINE) | ||||
| 				return; | ||||
| 		} | ||||
| 	} | ||||
| 
 | ||||
| 	if (opt->show_signature) { | ||||
| 		show_signature(opt, commit); | ||||
| 		show_mergetag(opt, commit); | ||||
| 	} | ||||
| 
 | ||||
| 	if (opt->show_notes) { | ||||
| 		int raw; | ||||
| 		struct strbuf notebuf = STRBUF_INIT; | ||||
| 
 | ||||
| 		raw = (opt->commit_format == CMIT_FMT_USERFORMAT); | ||||
| 		format_display_notes(&commit->object.oid, ¬ebuf, | ||||
| 				     get_log_output_encoding(), raw); | ||||
| 		ctx.notes_message = notebuf.len | ||||
| 			? strbuf_detach(¬ebuf, NULL) | ||||
| 			: xcalloc(1, 1); | ||||
| 	} | ||||
| 
 | ||||
| 	/*
 | ||||
| 	 * And then the pretty-printed message itself | ||||
| 	 */ | ||||
| 	if (ctx.need_8bit_cte >= 0 && opt->add_signoff) | ||||
| 		ctx.need_8bit_cte = | ||||
| 			has_non_ascii(fmt_name(WANT_COMMITTER_IDENT)); | ||||
| 	ctx.date_mode = opt->date_mode; | ||||
| 	ctx.date_mode_explicit = opt->date_mode_explicit; | ||||
| 	ctx.abbrev = opt->diffopt.abbrev; | ||||
| 	ctx.after_subject = extra_headers; | ||||
| 	ctx.preserve_subject = opt->preserve_subject; | ||||
| 	ctx.reflog_info = opt->reflog_info; | ||||
| 	ctx.fmt = opt->commit_format; | ||||
| 	ctx.mailmap = opt->mailmap; | ||||
| 	ctx.color = opt->diffopt.use_color; | ||||
| 	ctx.expand_tabs_in_log = opt->expand_tabs_in_log; | ||||
| 	ctx.output_encoding = get_log_output_encoding(); | ||||
| 	ctx.rev = opt; | ||||
| 	if (opt->from_ident.mail_begin && opt->from_ident.name_begin) | ||||
| 		ctx.from_ident = &opt->from_ident; | ||||
| 	if (opt->graph) | ||||
| 		ctx.graph_width = graph_width(opt->graph); | ||||
| 	pretty_print_commit(&ctx, commit, &msgbuf); | ||||
| 
 | ||||
| 	if (opt->add_signoff) | ||||
| 		append_signoff(&msgbuf, 0, APPEND_SIGNOFF_DEDUP); | ||||
| 
 | ||||
| 	if ((ctx.fmt != CMIT_FMT_USERFORMAT) && | ||||
| 	    ctx.notes_message && *ctx.notes_message) { | ||||
| 		if (cmit_fmt_is_mail(ctx.fmt)) | ||||
| 			next_commentary_block(opt, &msgbuf); | ||||
| 		strbuf_addstr(&msgbuf, ctx.notes_message); | ||||
| 	} | ||||
| 
 | ||||
| 	if (opt->show_log_size) { | ||||
| 		fprintf(opt->diffopt.file, "log size %i\n", (int)msgbuf.len); | ||||
| 		graph_show_oneline(opt->graph); | ||||
| 	} | ||||
| 
 | ||||
| 	/*
 | ||||
| 	 * Set opt->missing_newline if msgbuf doesn't | ||||
| 	 * end in a newline (including if it is empty) | ||||
| 	 */ | ||||
| 	if (!msgbuf.len || msgbuf.buf[msgbuf.len - 1] != '\n') | ||||
| 		opt->missing_newline = 1; | ||||
| 	else | ||||
| 		opt->missing_newline = 0; | ||||
| 
 | ||||
| 	graph_show_commit_msg(opt->graph, opt->diffopt.file, &msgbuf); | ||||
| 	if (opt->use_terminator && !commit_format_is_empty(opt->commit_format)) { | ||||
| 		if (!opt->missing_newline) | ||||
| 			graph_show_padding(opt->graph); | ||||
| 		putc(opt->diffopt.line_termination, opt->diffopt.file); | ||||
| 	} | ||||
| 
 | ||||
| 	strbuf_release(&msgbuf); | ||||
| 	free(ctx.notes_message); | ||||
| 
 | ||||
| 	if (cmit_fmt_is_mail(ctx.fmt) && opt->idiff_oid1) { | ||||
| 		struct diff_queue_struct dq; | ||||
| 
 | ||||
| 		memcpy(&dq, &diff_queued_diff, sizeof(diff_queued_diff)); | ||||
| 		DIFF_QUEUE_CLEAR(&diff_queued_diff); | ||||
| 
 | ||||
| 		next_commentary_block(opt, NULL); | ||||
| 		fprintf_ln(opt->diffopt.file, "%s", opt->idiff_title); | ||||
| 		show_interdiff(opt, 2); | ||||
| 
 | ||||
| 		memcpy(&diff_queued_diff, &dq, sizeof(diff_queued_diff)); | ||||
| 	} | ||||
| 
 | ||||
| 	if (cmit_fmt_is_mail(ctx.fmt) && opt->rdiff1) { | ||||
| 		struct diff_queue_struct dq; | ||||
| 		struct diff_options opts; | ||||
| 
 | ||||
| 		memcpy(&dq, &diff_queued_diff, sizeof(diff_queued_diff)); | ||||
| 		DIFF_QUEUE_CLEAR(&diff_queued_diff); | ||||
| 
 | ||||
| 		next_commentary_block(opt, NULL); | ||||
| 		fprintf_ln(opt->diffopt.file, "%s", opt->rdiff_title); | ||||
| 		/*
 | ||||
| 		 * Pass minimum required diff-options to range-diff; others | ||||
| 		 * can be added later if deemed desirable. | ||||
| 		 */ | ||||
| 		diff_setup(&opts); | ||||
| 		opts.file = opt->diffopt.file; | ||||
| 		opts.use_color = opt->diffopt.use_color; | ||||
| 		diff_setup_done(&opts); | ||||
| 		show_range_diff(opt->rdiff1, opt->rdiff2, | ||||
| 				opt->creation_factor, 1, &opts); | ||||
| 
 | ||||
| 		memcpy(&diff_queued_diff, &dq, sizeof(diff_queued_diff)); | ||||
| 	} | ||||
| } | ||||
| 
 | ||||
| int log_tree_diff_flush(struct rev_info *opt) | ||||
| { | ||||
| 	opt->shown_dashes = 0; | ||||
| 	diffcore_std(&opt->diffopt); | ||||
| 
 | ||||
| 	if (diff_queue_is_empty()) { | ||||
| 		int saved_fmt = opt->diffopt.output_format; | ||||
| 		opt->diffopt.output_format = DIFF_FORMAT_NO_OUTPUT; | ||||
| 		diff_flush(&opt->diffopt); | ||||
| 		opt->diffopt.output_format = saved_fmt; | ||||
| 		return 0; | ||||
| 	} | ||||
| 
 | ||||
| 	if (opt->loginfo && !opt->no_commit_id) { | ||||
| 		show_log(opt); | ||||
| 		if ((opt->diffopt.output_format & ~DIFF_FORMAT_NO_OUTPUT) && | ||||
| 		    opt->verbose_header && | ||||
| 		    opt->commit_format != CMIT_FMT_ONELINE && | ||||
| 		    !commit_format_is_empty(opt->commit_format)) { | ||||
| 			/*
 | ||||
| 			 * When showing a verbose header (i.e. log message), | ||||
| 			 * and not in --pretty=oneline format, we would want | ||||
| 			 * an extra newline between the end of log and the | ||||
| 			 * diff/diffstat output for readability. | ||||
| 			 */ | ||||
| 			int pch = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH; | ||||
| 			if (opt->diffopt.output_prefix) { | ||||
| 				struct strbuf *msg = NULL; | ||||
| 				msg = opt->diffopt.output_prefix(&opt->diffopt, | ||||
| 					opt->diffopt.output_prefix_data); | ||||
| 				fwrite(msg->buf, msg->len, 1, opt->diffopt.file); | ||||
| 			} | ||||
| 
 | ||||
| 			/*
 | ||||
| 			 * We may have shown three-dashes line early | ||||
| 			 * between generated commentary (notes, etc.) | ||||
| 			 * and the log message, in which case we only | ||||
| 			 * want a blank line after the commentary | ||||
| 			 * without (an extra) three-dashes line. | ||||
| 			 * Otherwise, we show the three-dashes line if | ||||
| 			 * we are showing the patch with diffstat, but | ||||
| 			 * in that case, there is no extra blank line | ||||
| 			 * after the three-dashes line. | ||||
| 			 */ | ||||
| 			if (!opt->shown_dashes && | ||||
| 			    (pch & opt->diffopt.output_format) == pch) | ||||
| 				fprintf(opt->diffopt.file, "---"); | ||||
| 			putc('\n', opt->diffopt.file); | ||||
| 		} | ||||
| 	} | ||||
| 	diff_flush(&opt->diffopt); | ||||
| 	return 1; | ||||
| } | ||||
| 
 | ||||
| static int do_diff_combined(struct rev_info *opt, struct commit *commit) | ||||
| { | ||||
| 	diff_tree_combined_merge(commit, opt->dense_combined_merges, opt); | ||||
| 	return !opt->loginfo; | ||||
| } | ||||
| 
 | ||||
| /*
 | ||||
|  * Show the diff of a commit. | ||||
|  * | ||||
|  * Return true if we printed any log info messages | ||||
|  */ | ||||
| static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log_info *log) | ||||
| { | ||||
| 	int showed_log; | ||||
| 	struct commit_list *parents; | ||||
| 	struct object_id *oid; | ||||
| 
 | ||||
| 	if (!opt->diff && !opt->diffopt.flags.exit_with_status) | ||||
| 		return 0; | ||||
| 
 | ||||
| 	parse_commit_or_die(commit); | ||||
| 	oid = get_commit_tree_oid(commit); | ||||
| 
 | ||||
| 	/* Root commit? */ | ||||
| 	parents = get_saved_parents(opt, commit); | ||||
| 	if (!parents) { | ||||
| 		if (opt->show_root_diff) { | ||||
| 			diff_root_tree_oid(oid, "", &opt->diffopt); | ||||
| 			log_tree_diff_flush(opt); | ||||
| 		} | ||||
| 		return !opt->loginfo; | ||||
| 	} | ||||
| 
 | ||||
| 	/* More than one parent? */ | ||||
| 	if (parents && parents->next) { | ||||
| 		if (opt->ignore_merges) | ||||
| 			return 0; | ||||
| 		else if (opt->combine_merges) | ||||
| 			return do_diff_combined(opt, commit); | ||||
| 		else if (opt->first_parent_only) { | ||||
| 			/*
 | ||||
| 			 * Generate merge log entry only for the first | ||||
| 			 * parent, showing summary diff of the others | ||||
| 			 * we merged _in_. | ||||
| 			 */ | ||||
| 			parse_commit_or_die(parents->item); | ||||
| 			diff_tree_oid(get_commit_tree_oid(parents->item), | ||||
| 				      oid, "", &opt->diffopt); | ||||
| 			log_tree_diff_flush(opt); | ||||
| 			return !opt->loginfo; | ||||
| 		} | ||||
| 
 | ||||
| 		/* If we show individual diffs, show the parent info */ | ||||
| 		log->parent = parents->item; | ||||
| 	} | ||||
| 
 | ||||
| 	showed_log = 0; | ||||
| 	for (;;) { | ||||
| 		struct commit *parent = parents->item; | ||||
| 
 | ||||
| 		parse_commit_or_die(parent); | ||||
| 		diff_tree_oid(get_commit_tree_oid(parent), | ||||
| 			      oid, "", &opt->diffopt); | ||||
| 		log_tree_diff_flush(opt); | ||||
| 
 | ||||
| 		showed_log |= !opt->loginfo; | ||||
| 
 | ||||
| 		/* Set up the log info for the next parent, if any.. */ | ||||
| 		parents = parents->next; | ||||
| 		if (!parents) | ||||
| 			break; | ||||
| 		log->parent = parents->item; | ||||
| 		opt->loginfo = log; | ||||
| 	} | ||||
| 	return showed_log; | ||||
| } | ||||
| 
 | ||||
| int log_tree_commit(struct rev_info *opt, struct commit *commit) | ||||
| { | ||||
| 	struct log_info log; | ||||
| 	int shown, close_file = opt->diffopt.close_file; | ||||
| 
 | ||||
| 	log.commit = commit; | ||||
| 	log.parent = NULL; | ||||
| 	opt->loginfo = &log; | ||||
| 	opt->diffopt.close_file = 0; | ||||
| 
 | ||||
| 	if (opt->line_level_traverse) | ||||
| 		return line_log_print(opt, commit); | ||||
| 
 | ||||
| 	if (opt->track_linear && !opt->linear && !opt->reverse_output_stage) | ||||
| 		fprintf(opt->diffopt.file, "\n%s\n", opt->break_bar); | ||||
| 	shown = log_tree_diff(opt, commit, &log); | ||||
| 	if (!shown && opt->loginfo && opt->always_show_header) { | ||||
| 		log.parent = NULL; | ||||
| 		show_log(opt); | ||||
| 		shown = 1; | ||||
| 	} | ||||
| 	if (opt->track_linear && !opt->linear && opt->reverse_output_stage) | ||||
| 		fprintf(opt->diffopt.file, "\n%s\n", opt->break_bar); | ||||
| 	opt->loginfo = NULL; | ||||
| 	maybe_flush_or_die(opt->diffopt.file, "stdout"); | ||||
| 	if (close_file) | ||||
| 		fclose(opt->diffopt.file); | ||||
| 	return shown; | ||||
| } | ||||
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