X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=blame.c;h=25d3bcf647f44bbaed1c273d5886df6a7cfe6e03;hb=e968751573a4ded76201a0e4414ec36649a92dda;hp=a5964107cbdbd752dc6b8c77f4105a109b2e9e3f;hpb=38b525e09f9088338e03ad0169e3cc7b5ab2e7af;p=git.git

diff --git a/blame.c b/blame.c
index a5964107..25d3bcf6 100644
--- a/blame.c
+++ b/blame.c
@@ -20,9 +20,11 @@
 
 #define DEBUG 0
 
-static const char blame_usage[] = "[-c] [-l] [--] file [commit]\n"
+static const char blame_usage[] = "[-c] [-l] [-t] [-S <revs-file>] [--] file [commit]\n"
 	"  -c, --compability 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"
 	"  -h, --help        This message";
 
 static struct commit **blame_lines;
@@ -149,7 +151,7 @@ static void free_patch(struct patch *p)
 	free(p);
 }
 
-static int get_blob_sha1_internal(unsigned char *sha1, const char *base,
+static int get_blob_sha1_internal(const unsigned char *sha1, const char *base,
 				  int baselen, const char *pathname,
 				  unsigned mode, int stage);
 
@@ -178,7 +180,7 @@ static int get_blob_sha1(struct tree *t, const char *pathname,
 	return 0;
 }
 
-static int get_blob_sha1_internal(unsigned char *sha1, const char *base,
+static int get_blob_sha1_internal(const unsigned char *sha1, const char *base,
 				  int baselen, const char *pathname,
 				  unsigned mode, int stage)
 {
@@ -508,25 +510,33 @@ static void process_commits(struct rev_info *rev, const char *path,
 static int compare_tree_path(struct rev_info* revs,
 			     struct commit* c1, struct commit* c2)
 {
+	int ret;
 	const char* paths[2];
 	struct util_info* util = c2->object.util;
 	paths[0] = util->pathname;
 	paths[1] = NULL;
 
-	diff_tree_setup_paths(get_pathspec(revs->prefix, paths));
-	return rev_compare_tree(c1->tree, c2->tree);
+	diff_tree_setup_paths(get_pathspec(revs->prefix, paths),
+			      &revs->pruning);
+	ret = rev_compare_tree(revs, c1->tree, c2->tree);
+	diff_tree_release_paths(&revs->pruning);
+	return ret;
 }
 
 
 static int same_tree_as_empty_path(struct rev_info *revs, struct tree* t1,
 				   const char* path)
 {
+	int ret;
 	const char* paths[2];
 	paths[0] = path;
 	paths[1] = NULL;
 
-	diff_tree_setup_paths(get_pathspec(revs->prefix, paths));
-	return rev_same_tree_as_empty(t1);
+	diff_tree_setup_paths(get_pathspec(revs->prefix, paths),
+			      &revs->pruning);
+	ret = rev_same_tree_as_empty(revs, t1);
+	diff_tree_release_paths(&revs->pruning);
+	return ret;
 }
 
 static const char* find_rename(struct commit* commit, struct commit* parent)
@@ -546,7 +556,7 @@ static const char* find_rename(struct commit* commit, struct commit* parent)
 	diff_opts.recursive = 1;
 	diff_opts.detect_rename = DIFF_DETECT_RENAME;
 	paths[0] = NULL;
-	diff_tree_setup_paths(paths);
+	diff_tree_setup_paths(paths, &diff_opts);
 	if (diff_setup_done(&diff_opts) < 0)
 		die("diff_setup_done failed");
 
@@ -672,13 +682,19 @@ static void get_commit_info(struct commit* commit, struct commit_info* ret)
 	*tmp = 0;
 }
 
-static const char* format_time(unsigned long time, const char* tz_str)
+static const char* format_time(unsigned long time, const char* tz_str,
+			       int show_raw_time)
 {
 	static char time_buf[128];
 	time_t t = time;
 	int minutes, tz;
 	struct tm *tm;
 
+	if (show_raw_time) {
+		sprintf(time_buf, "%lu %s", time, tz_str);
+		return time_buf;
+	}
+
 	tz = atoi(tz_str);
 	minutes = tz < 0 ? -tz : tz;
 	minutes = (minutes / 100)*60 + (minutes % 100);
@@ -703,16 +719,36 @@ static void* topo_getter(struct commit* c)
 	return util->topo_data;
 }
 
+static int read_ancestry(const char *graft_file,
+			 unsigned char **start_sha1)
+{
+	FILE *fp = fopen(graft_file, "r");
+	char buf[1024];
+	if (!fp)
+		return -1;
+	while (fgets(buf, sizeof(buf), fp)) {
+		/* The format is just "Commit Parent1 Parent2 ...\n" */
+		int len = strlen(buf);
+		struct commit_graft *graft = read_graft_line(buf, len);
+		register_commit_graft(graft, 0);
+		if (!*start_sha1)
+			*start_sha1 = graft->sha1;
+	}
+	fclose(fp);
+	return 0;
+}
+
 int main(int argc, const char **argv)
 {
 	int i;
 	struct commit *initial = NULL;
-	unsigned char sha1[20];
+	unsigned char sha1[20], *sha1_p = NULL;
 
 	const char *filename = NULL, *commit = NULL;
 	char filename_buf[256];
 	int sha1_len = 8;
 	int compability = 0;
+	int show_raw_time = 0;
 	int options = 1;
 	struct commit* start_commit;
 
@@ -741,6 +777,18 @@ int main(int argc, const char **argv)
 				  !strcmp(argv[i], "--compability")) {
 				compability = 1;
 				continue;
+			} else if(!strcmp(argv[i], "-t") ||
+				  !strcmp(argv[i], "--time")) {
+				show_raw_time = 1;
+				continue;
+			} else if(!strcmp(argv[i], "-S")) {
+				if (i + 1 < argc &&
+				    !read_ancestry(argv[i + 1], &sha1_p)) {
+					compability = 1;
+					i++;
+					continue;
+				}
+				usage(blame_usage);
 			} else if(!strcmp(argv[i], "--")) {
 				options = 0;
 				continue;
@@ -762,7 +810,9 @@ int main(int argc, const char **argv)
 
 	if(!filename)
 		usage(blame_usage);
-	if(!commit)
+	if (commit && sha1_p)
+		usage(blame_usage);
+	else if(!commit)
 		commit = "HEAD";
 
 	if(prefix)
@@ -771,9 +821,12 @@ int main(int argc, const char **argv)
 		strcpy(filename_buf, filename);
 	filename = filename_buf;
 
-	if (get_sha1(commit, sha1))
-		die("get_sha1 failed, commit '%s' not found", commit);
-	start_commit = lookup_commit_reference(sha1);
+	if (!sha1_p) {
+		if (get_sha1(commit, sha1))
+			die("get_sha1 failed, commit '%s' not found", commit);
+		sha1_p = sha1;
+	}
+	start_commit = lookup_commit_reference(sha1_p);
 	get_util(start_commit)->pathname = filename;
 	if (fill_util_info(start_commit)) {
 		printf("%s not found in %s\n", filename, commit);
@@ -794,7 +847,7 @@ int main(int argc, const char **argv)
 
 	args[0] = filename;
 	args[1] = NULL;
-	diff_tree_setup_paths(args);
+	diff_tree_setup_paths(args, &rev.pruning);
 	prepare_revision_walk(&rev);
 	process_commits(&rev, filename, &initial);
 
@@ -833,14 +886,17 @@ int main(int argc, const char **argv)
 		fwrite(sha1_to_hex(c->object.sha1), sha1_len, 1, stdout);
 		if(compability) {
 			printf("\t(%10s\t%10s\t%d)", ci.author,
-			       format_time(ci.author_time, ci.author_tz), i+1);
+			       format_time(ci.author_time, ci.author_tz,
+					   show_raw_time),
+			       i+1);
 		} else {
 			if (found_rename)
 				printf(" %-*.*s", longest_file, longest_file,
 				       u->pathname);
 			printf(" (%-*.*s %10s %*d) ",
 			       longest_author, longest_author, ci.author,
-			       format_time(ci.author_time, ci.author_tz),
+			       format_time(ci.author_time, ci.author_tz,
+					   show_raw_time),
 			       max_digits, i+1);
 		}