X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=blame.c;h=e664813cb48f555fa8968995eda4170a02a99f42;hb=9ee93dceb5dbef8052b0abde3eea94181bd9d95b;hp=bf4a1a1ff06d2a923dac63792a4da647831111d5;hpb=cf54a029ff82ce9b565e075bfa5d97ec82841283;p=git.git

diff --git a/blame.c b/blame.c
index bf4a1a1ff..e664813cb 100644
--- a/blame.c
+++ b/blame.c
@@ -17,15 +17,19 @@
 #include "diffcore.h"
 #include "revision.h"
 #include "xdiff-interface.h"
+#include "quote.h"
 
 #define DEBUG 0
 
 static const char blame_usage[] =
-"git-blame [-c] [-l] [-t] [-S <revs-file>] [--] file [commit]\n"
+"git-blame [-c] [-l] [-t] [-f] [-n] [-p] [-S <revs-file>] [--] file [commit]\n"
 "  -c, --compatibility Use the same output mode as git-annotate (Default: off)\n"
 "  -l, --long          Show long commit SHA1 (Default: off)\n"
 "  -t, --time          Show raw timestamp (Default: off)\n"
-"  -S, --revs-file     Use revisions from revs-file instead of calling git-rev-list\n"
+"  -f, --show-name     Show original filename (Default: auto)\n"
+"  -n, --show-number   Show original linenumber (Default: off)\n"
+"  -p, --porcelain     Show in a format designed for machine consumption\n"
+"  -S revs-file        Use revisions from revs-file instead of calling git-rev-list\n"
 "  -h, --help          This message";
 
 static struct commit **blame_lines;
@@ -40,6 +44,7 @@ struct util_info {
 	unsigned long size;
 	int num_lines;
 	const char *pathname;
+	unsigned meta_given:1;
 
 	void *topo_data;
 };
@@ -332,12 +337,8 @@ static struct util_info *get_util(struct commit *commit)
 	if (util)
 		return util;
 
-	util = xmalloc(sizeof(struct util_info));
-	util->buf = NULL;
-	util->size = 0;
-	util->line_map = NULL;
+	util = xcalloc(1, sizeof(struct util_info));
 	util->num_lines = -1;
-	util->pathname = NULL;
 	commit->util = util;
 	return util;
 }
@@ -642,39 +643,99 @@ struct commit_info
 	char *author_mail;
 	unsigned long author_time;
 	char *author_tz;
+
+	/* filled only when asked for details */
+	char *committer;
+	char *committer_mail;
+	unsigned long committer_time;
+	char *committer_tz;
+
+	char *summary;
 };
 
-static void get_commit_info(struct commit *commit, struct commit_info *ret)
+static void get_ac_line(const char *inbuf, const char *what,
+			int bufsz, char *person, char **mail,
+			unsigned long *time, char **tz)
 {
 	int len;
-	char *tmp;
-	static char author_buf[1024];
-
-	tmp = strstr(commit->buffer, "\nauthor ") + 8;
-	len = strchr(tmp, '\n') - tmp;
-	ret->author = author_buf;
-	memcpy(ret->author, tmp, len);
+	char *tmp, *endp;
+
+	tmp = strstr(inbuf, what);
+	if (!tmp)
+		goto error_out;
+	tmp += strlen(what);
+	endp = strchr(tmp, '\n');
+	if (!endp)
+		len = strlen(tmp);
+	else
+		len = endp - tmp;
+	if (bufsz <= len) {
+	error_out:
+		/* Ugh */
+		person = *mail = *tz = "(unknown)";
+		*time = 0;
+		return;
+	}
+	memcpy(person, tmp, len);
 
-	tmp = ret->author;
+	tmp = person;
 	tmp += len;
 	*tmp = 0;
 	while (*tmp != ' ')
 		tmp--;
-	ret->author_tz = tmp+1;
+	*tz = tmp+1;
 
 	*tmp = 0;
 	while (*tmp != ' ')
 		tmp--;
-	ret->author_time = strtoul(tmp, NULL, 10);
+	*time = strtoul(tmp, NULL, 10);
 
 	*tmp = 0;
 	while (*tmp != ' ')
 		tmp--;
-	ret->author_mail = tmp + 1;
-
+	*mail = tmp + 1;
 	*tmp = 0;
 }
 
+static void get_commit_info(struct commit *commit, struct commit_info *ret, int detailed)
+{
+	int len;
+	char *tmp, *endp;
+	static char author_buf[1024];
+	static char committer_buf[1024];
+	static char summary_buf[1024];
+
+	ret->author = author_buf;
+	get_ac_line(commit->buffer, "\nauthor ",
+		    sizeof(author_buf), author_buf, &ret->author_mail,
+		    &ret->author_time, &ret->author_tz);
+
+	if (!detailed)
+		return;
+
+	ret->committer = committer_buf;
+	get_ac_line(commit->buffer, "\ncommitter ",
+		    sizeof(committer_buf), committer_buf, &ret->committer_mail,
+		    &ret->committer_time, &ret->committer_tz);
+
+	ret->summary = summary_buf;
+	tmp = strstr(commit->buffer, "\n\n");
+	if (!tmp) {
+	error_out:
+		sprintf(summary_buf, "(%s)", sha1_to_hex(commit->object.sha1));
+		return;
+	}
+	tmp += 2;
+	endp = strchr(tmp, '\n');
+	if (!endp)
+		goto error_out;
+	len = endp - tmp;
+	if (len >= sizeof(summary_buf))
+		goto error_out;
+	memcpy(summary_buf, tmp, len);
+	summary_buf[len] = 0;
+}
+
 static const char *format_time(unsigned long time, const char *tz_str,
 			       int show_raw_time)
 {
@@ -750,6 +811,82 @@ static int find_orig_linenum(struct util_info *u, int lineno)
 	return 0;
 }
 
+static void emit_meta(struct commit *c, int lno,
+		      int sha1_len, int compatibility, int porcelain,
+		      int show_name, int show_number, int show_raw_time,
+		      int longest_file, int longest_author,
+		      int max_digits, int max_orig_digits)
+{
+	struct util_info *u;
+	int lineno;
+	struct commit_info ci;
+
+	u = c->util;
+	lineno = find_orig_linenum(u, lno);
+
+	if (porcelain) {
+		int group_size = -1;
+		struct commit *cc = (lno == 0) ? NULL : blame_lines[lno-1];
+		if (cc != c) {
+			/* This is the beginning of this group */
+			int i;
+			for (i = lno + 1; i < num_blame_lines; i++)
+				if (blame_lines[i] != c)
+					break;
+			group_size = i - lno;
+		}
+		if (0 < group_size)
+			printf("%s %d %d %d\n", sha1_to_hex(c->object.sha1),
+			       lineno, lno + 1, group_size);
+		else
+			printf("%s %d %d\n", sha1_to_hex(c->object.sha1),
+			       lineno, lno + 1);
+		if (!u->meta_given) {
+			get_commit_info(c, &ci, 1);
+			printf("author %s\n", ci.author);
+			printf("author-mail %s\n", ci.author_mail);
+			printf("author-time %lu\n", ci.author_time);
+			printf("author-tz %s\n", ci.author_tz);
+			printf("committer %s\n", ci.committer);
+			printf("committer-mail %s\n", ci.committer_mail);
+			printf("committer-time %lu\n", ci.committer_time);
+			printf("committer-tz %s\n", ci.committer_tz);
+			printf("filename ");
+			if (quote_c_style(u->pathname, NULL, NULL, 0))
+				quote_c_style(u->pathname, NULL, stdout, 0);
+			else
+				fputs(u->pathname, stdout);
+			printf("\nsummary %s\n", ci.summary);
+
+			u->meta_given = 1;
+		}
+		putchar('\t');
+		return;
+	}
+
+	get_commit_info(c, &ci, 0);
+	fwrite(sha1_to_hex(c->object.sha1), sha1_len, 1, stdout);
+	if (compatibility) {
+		printf("\t(%10s\t%10s\t%d)", ci.author,
+		       format_time(ci.author_time, ci.author_tz,
+				   show_raw_time),
+		       lno + 1);
+	}
+	else {
+		if (show_name)
+			printf(" %-*.*s", longest_file, longest_file,
+			       u->pathname);
+		if (show_number)
+			printf(" %*d", max_orig_digits,
+			       lineno);
+		printf(" (%-*.*s %10s %*d) ",
+		       longest_author, longest_author, ci.author,
+		       format_time(ci.author_time, ci.author_tz,
+				   show_raw_time),
+		       max_digits, lno + 1);
+	}
+}
+
 int main(int argc, const char **argv)
 {
 	int i;
@@ -773,6 +910,7 @@ int main(int argc, const char **argv)
 	int longest_file, longest_author, longest_file_lines;
 	int show_name = 0;
 	int show_number = 0;
+	int porcelain = 0;
 
 	const char *prefix = setup_git_directory();
 	git_config(git_default_config);
@@ -816,6 +954,13 @@ int main(int argc, const char **argv)
 				show_number = 1;
 				continue;
 			}
+			if (!strcmp(argv[i], "-p") ||
+			    !strcmp(argv[i], "--porcelain")) {
+				porcelain = 1;
+				sha1_len = 40;
+				show_raw_time = 1;
+				continue;
+			}
 			if (!strcmp(argv[i], "--")) {
 				options = 0;
 				continue;
@@ -877,6 +1022,10 @@ int main(int argc, const char **argv)
 	prepare_revision_walk(&rev);
 	process_commits(&rev, filename, &initial);
 
+	for (i = 0; i < num_blame_lines; i++)
+		if (!blame_lines[i])
+			blame_lines[i] = initial;
+
 	buf = blame_contents;
 	max_digits = lineno_width(num_blame_lines);
 
@@ -886,8 +1035,6 @@ int main(int argc, const char **argv)
 	for (i = 0; i < num_blame_lines; i++) {
 		struct commit *c = blame_lines[i];
 		struct util_info *u;
-		if (!c)
-			c = initial;
 		u = c->util;
 
 		if (!show_name && strcmp(filename, u->pathname))
@@ -896,7 +1043,7 @@ int main(int argc, const char **argv)
 			longest_file = strlen(u->pathname);
 		if (longest_file_lines < u->num_lines)
 			longest_file_lines = u->num_lines;
-		get_commit_info(c, &ci);
+		get_commit_info(c, &ci, 0);
 		if (longest_author < strlen(ci.author))
 			longest_author = strlen(ci.author);
 	}
@@ -904,35 +1051,11 @@ int main(int argc, const char **argv)
 	max_orig_digits = lineno_width(longest_file_lines);
 
 	for (i = 0; i < num_blame_lines; i++) {
-		struct commit *c = blame_lines[i];
-		struct util_info *u;
-		int lineno;
-		if (!c)
-			c = initial;
-		u = c->util;
-		lineno = find_orig_linenum(u, i);
-
-		get_commit_info(c, &ci);
-		fwrite(sha1_to_hex(c->object.sha1), sha1_len, 1, stdout);
-		if (compatibility) {
-			printf("\t(%10s\t%10s\t%d)", ci.author,
-			       format_time(ci.author_time, ci.author_tz,
-					   show_raw_time),
-			       i+1);
-		}
-		else {
-			if (show_name)
-				printf(" %-*.*s", longest_file, longest_file,
-				       u->pathname);
-			if (show_number)
-				printf(" %*d", max_orig_digits,
-				       lineno);
-			printf(" (%-*.*s %10s %*d) ",
-			       longest_author, longest_author, ci.author,
-			       format_time(ci.author_time, ci.author_tz,
-					   show_raw_time),
-			       max_digits, i+1);
-		}
+		emit_meta(blame_lines[i], i,
+			  sha1_len, compatibility, porcelain,
+			  show_name, show_number, show_raw_time,
+			  longest_file, longest_author,
+			  max_digits, max_orig_digits);
 
 		if (i == num_blame_lines - 1) {
 			fwrite(buf, blame_len - (buf - blame_contents),