1 files changed, 88 insertions, 136 deletions

diff --git a/log-tree.c b/log-tree.c
index 4f86defe32..1946e9ce8d 100644
--- a/log-tree.c
+++ b/log-tree.c
@@ -9,6 +9,7 @@
 #include "string-list.h"
 #include "color.h"
 #include "gpg-interface.h"
+#include "sequencer.h"
 
 struct decoration name_decoration = { "object names" };
 
@@ -174,119 +175,52 @@ static void show_children(struct rev_info *opt, struct commit *commit, int abbre
 	}
 }
 
-void show_decorations(struct rev_info *opt, struct commit *commit)
+/*
+ * The caller makes sure there is no funny color before
+ * calling. format_decorations makes sure the same after return.
+ */
+void format_decorations(struct strbuf *sb,
+			const struct commit *commit,
+			int use_color)
 {
 	const char *prefix;
 	struct name_decoration *decoration;
 	const char *color_commit =
-		diff_get_color_opt(&opt->diffopt, DIFF_COMMIT);
+		diff_get_color(use_color, DIFF_COMMIT);
 	const char *color_reset =
-		decorate_get_color_opt(&opt->diffopt, DECORATION_NONE);
+		decorate_get_color(use_color, DECORATION_NONE);
 
-	if (opt->show_source && commit->util)
-		printf("\t%s", (char *) commit->util);
-	if (!opt->show_decorations)
-		return;
 	decoration = lookup_decoration(&name_decoration, &commit->object);
 	if (!decoration)
 		return;
 	prefix = " (";
 	while (decoration) {
-		printf("%s", prefix);
-		fputs(decorate_get_color_opt(&opt->diffopt, decoration->type),
-		      stdout);
+		strbuf_addstr(sb, color_commit);
+		strbuf_addstr(sb, prefix);
+		strbuf_addstr(sb, decorate_get_color(use_color, decoration->type));
 		if (decoration->type == DECORATION_REF_TAG)
-			fputs("tag: ", stdout);
-		printf("%s", decoration->name);
-		fputs(color_reset, stdout);
-		fputs(color_commit, stdout);
+			strbuf_addstr(sb, "tag: ");
+		strbuf_addstr(sb, decoration->name);
+		strbuf_addstr(sb, color_reset);
 		prefix = ", ";
 		decoration = decoration->next;
 	}
-	putchar(')');
-}
-
-/*
- * Search for "^[-A-Za-z]+: [^@]+@" pattern. It usually matches
- * Signed-off-by: and Acked-by: lines.
- */
-static int detect_any_signoff(char *letter, int size)
-{
-	char *cp;
-	int seen_colon = 0;
-	int seen_at = 0;
-	int seen_name = 0;
-	int seen_head = 0;
-
-	cp = letter + size;
-	while (letter <= --cp && *cp == '\n')
-		continue;
-
-	while (letter <= cp) {
-		char ch = *cp--;
-		if (ch == '\n')
-			break;
-
-		if (!seen_at) {
-			if (ch == '@')
-				seen_at = 1;
-			continue;
-		}
-		if (!seen_colon) {
-			if (ch == '@')
-				return 0;
-			else if (ch == ':')
-				seen_colon = 1;
-			else
-				seen_name = 1;
-			continue;
-		}
-		if (('A' <= ch && ch <= 'Z') ||
-		    ('a' <= ch && ch <= 'z') ||
-		    ch == '-') {
-			seen_head = 1;
-			continue;
-		}
-		/* no empty last line doesn't match */
-		return 0;
-	}
-	return seen_head && seen_name;
+	strbuf_addstr(sb, color_commit);
+	strbuf_addch(sb, ')');
+	strbuf_addstr(sb, color_reset);
 }
 
-static void append_signoff(struct strbuf *sb, const char *signoff)
+void show_decorations(struct rev_info *opt, struct commit *commit)
 {
-	static const char signed_off_by[] = "Signed-off-by: ";
-	size_t signoff_len = strlen(signoff);
-	int has_signoff = 0;
-	char *cp;
+	struct strbuf sb = STRBUF_INIT;
 
-	cp = sb->buf;
-
-	/* First see if we already have the sign-off by the signer */
-	while ((cp = strstr(cp, signed_off_by))) {
-
-		has_signoff = 1;
-
-		cp += strlen(signed_off_by);
-		if (cp + signoff_len >= sb->buf + sb->len)
-			break;
-		if (strncmp(cp, signoff, signoff_len))
-			continue;
-		if (!isspace(cp[signoff_len]))
-			continue;
-		/* we already have him */
+	if (opt->show_source && commit->util)
+		printf("\t%s", (char *) commit->util);
+	if (!opt->show_decorations)
 		return;
-	}
-
-	if (!has_signoff)
-		has_signoff = detect_any_signoff(sb->buf, sb->len);
-
-	if (!has_signoff)
-		strbuf_addch(sb, '\n');
-
-	strbuf_addstr(sb, signed_off_by);
-	strbuf_add(sb, signoff, signoff_len);
-	strbuf_addch(sb, '\n');
+	format_decorations(&sb, commit, opt->diffopt.use_color);
+	fputs(sb.buf, stdout);
+	strbuf_release(&sb);
 }
 
 static unsigned int digits_in_number(unsigned int number)
@@ -299,26 +233,34 @@ static unsigned int digits_in_number(unsigned int number)
 	return result;
 }
 
-void get_patch_filename(struct commit *commit, const char *subject, int nr,
-			const char *suffix, struct strbuf *buf)
+void fmt_output_subject(struct strbuf *filename,
+			const char *subject,
+			struct rev_info *info)
 {
-	int suffix_len = strlen(suffix) + 1;
-	int start_len = buf->len;
-
-	strbuf_addf(buf, commit || subject ? "%04d-" : "%d", nr);
-	if (commit || subject) {
-		int max_len = start_len + FORMAT_PATCH_NAME_MAX - suffix_len;
-		struct pretty_print_context ctx = {0};
-
-		if (subject)
-			strbuf_addstr(buf, subject);
-		else if (commit)
-			format_commit_message(commit, "%f", buf, &ctx);
-
-		if (max_len < buf->len)
-			strbuf_setlen(buf, max_len);
-		strbuf_addstr(buf, suffix);
-	}
+	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 log_write_email_headers(struct rev_info *opt, struct commit *commit,
@@ -387,8 +329,10 @@ void log_write_email_headers(struct rev_info *opt, struct commit *commit,
 			 mime_boundary_leader, opt->mime_boundary);
 		extra_headers = subject_buffer;
 
-		get_patch_filename(opt->numbered_files ? NULL : commit, NULL,
-				   opt->nr, opt->patch_suffix, &filename);
+		if (opt->numbered_files)
+			strbuf_addf(&filename, "%d", opt->nr);
+		else
+			fmt_output_commit(&filename, commit, opt);
 		snprintf(buffer, sizeof(buffer) - 1,
 			 "\n--%s%s\n"
 			 "Content-Type: text/x-patch;"
@@ -434,7 +378,7 @@ static void show_signature(struct rev_info *opt, struct commit *commit)
 
 	status = verify_signed_buffer(payload.buf, payload.len,
 				      signature.buf, signature.len,
-				      &gpg_output);
+				      &gpg_output, NULL);
 	if (status && !gpg_output.len)
 		strbuf_addstr(&gpg_output, "No signature\n");
 
@@ -498,20 +442,17 @@ static void show_one_mergetag(struct rev_info *opt,
 	gpg_message_offset = verify_message.len;
 
 	payload_size = parse_signature(extra->value, extra->len);
-	if ((extra->len <= payload_size) ||
-	    (verify_signed_buffer(extra->value, payload_size,
-				  extra->value + payload_size,
-				  extra->len - payload_size,
-				  &verify_message) &&
-	     verify_message.len <= gpg_message_offset)) {
-		strbuf_addstr(&verify_message, "No signature\n");
-		status = -1;
-	}
-	else if (strstr(verify_message.buf + gpg_message_offset,
-			": Good signature from "))
-		status = 0;
-	else
-		status = -1;
+	status = -1;
+	if (extra->len > payload_size)
+		if (verify_signed_buffer(extra->value, payload_size,
+					 extra->value + payload_size,
+					 extra->len - payload_size,
+					 &verify_message, NULL)) {
+			if (verify_message.len <= gpg_message_offset)
+				strbuf_addstr(&verify_message, "No signature\n");
+			else
+				status = 0;
+		}
 
 	show_sig_lines(opt, status, verify_message.buf);
 	strbuf_release(&verify_message);
@@ -615,8 +556,8 @@ void show_log(struct rev_info *opt)
 			printf(" (from %s)",
 			       find_unique_abbrev(parent->object.sha1,
 						  abbrev_commit));
+		fputs(diff_get_color_opt(&opt->diffopt, DIFF_RESET), stdout);
 		show_decorations(opt, commit);
-		printf("%s", diff_get_color_opt(&opt->diffopt, DIFF_RESET));
 		if (opt->commit_format == CMIT_FMT_ONELINE) {
 			putchar(' ');
 		} else {
@@ -662,8 +603,10 @@ void show_log(struct rev_info *opt)
 	/*
 	 * And then the pretty-printed message itself
 	 */
-	if (ctx.need_8bit_cte >= 0)
-		ctx.need_8bit_cte = has_non_ascii(opt->add_signoff);
+	if (ctx.need_8bit_cte >= 0 && opt->add_signoff)
+		ctx.need_8bit_cte =
+			has_non_ascii(fmt_name(getenv("GIT_COMMITTER_NAME"),
+					       getenv("GIT_COMMITTER_EMAIL")));
 	ctx.date_mode = opt->date_mode;
 	ctx.date_mode_explicit = opt->date_mode_explicit;
 	ctx.abbrev = opt->diffopt.abbrev;
@@ -671,10 +614,12 @@ void show_log(struct rev_info *opt)
 	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;
 	pretty_print_commit(&ctx, commit, &msgbuf);
 
 	if (opt->add_signoff)
-		append_signoff(&msgbuf, opt->add_signoff);
+		append_signoff(&msgbuf, 0, APPEND_SIGNOFF_DEDUP);
 
 	if ((ctx.fmt != CMIT_FMT_USERFORMAT) &&
 	    ctx.notes_message && *ctx.notes_message) {
@@ -780,11 +725,14 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log
 {
 	int showed_log;
 	struct commit_list *parents;
-	unsigned const char *sha1 = commit->object.sha1;
+	unsigned const char *sha1;
 
 	if (!opt->diff && !DIFF_OPT_TST(&opt->diffopt, EXIT_WITH_STATUS))
 		return 0;
 
+	parse_commit(commit);
+	sha1 = commit->tree->object.sha1;
+
 	/* Root commit? */
 	parents = commit->parents;
 	if (!parents) {
@@ -807,7 +755,9 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log
 			 * parent, showing summary diff of the others
 			 * we merged _in_.
 			 */
-			diff_tree_sha1(parents->item->object.sha1, sha1, "", &opt->diffopt);
+			parse_commit(parents->item);
+			diff_tree_sha1(parents->item->tree->object.sha1,
+				       sha1, "", &opt->diffopt);
 			log_tree_diff_flush(opt);
 			return !opt->loginfo;
 		}
@@ -820,7 +770,9 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log
 	for (;;) {
 		struct commit *parent = parents->item;
 
-		diff_tree_sha1(parent->object.sha1, sha1, "", &opt->diffopt);
+		parse_commit(parent);
+		diff_tree_sha1(parent->tree->object.sha1,
+			       sha1, "", &opt->diffopt);
 		log_tree_diff_flush(opt);
 
 		showed_log |= !opt->loginfo;