X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=rev-list.c;h=c60aa72957cb65501266911aefd8aaaa2f2e4e16;hb=5f93926c3c5c4fe1def39de82076bc69ec89c058;hp=83a604ae9bc382953ebd0167fd86bbc813ce9156;hpb=80bd6f3064a6009cd18a4dab9ce6d29681cec4af;p=git.git

diff --git a/rev-list.c b/rev-list.c
index 83a604ae..c60aa729 100644
--- a/rev-list.c
+++ b/rev-list.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "refs.h"
 #include "tag.h"
 #include "commit.h"
 #include "tree.h"
@@ -15,12 +16,15 @@ static const char rev_list_usage[] =
 		      "  --max-count=nr\n"
 		      "  --max-age=epoch\n"
 		      "  --min-age=epoch\n"
+		      "  --parents\n"
 		      "  --bisect\n"
 		      "  --objects\n"
 		      "  --unpacked\n"
 		      "  --header\n"
 		      "  --pretty\n"
-		      "  --merge-order [ --show-breaks ]";
+		      "  --no-merges\n"
+		      "  --merge-order [ --show-breaks ]\n"
+		      "  --topo-order";
 
 static int unpacked = 0;
 static int bisect_list = 0;
@@ -30,7 +34,7 @@ static int blob_objects = 0;
 static int verbose_header = 0;
 static int show_parents = 0;
 static int hdr_termination = 0;
-static const char *prefix = "";
+static const char *commit_prefix = "";
 static unsigned long max_age = -1;
 static unsigned long min_age = -1;
 static int max_count = -1;
@@ -39,19 +43,20 @@ static int merge_order = 0;
 static int show_breaks = 0;
 static int stop_traversal = 0;
 static int topo_order = 0;
+static int no_merges = 0;
 
 static void show_commit(struct commit *commit)
 {
 	commit->object.flags |= SHOWN;
 	if (show_breaks) {
-		prefix = "| ";
+		commit_prefix = "| ";
 		if (commit->object.flags & DISCONTINUITY) {
-			prefix = "^ ";     
+			commit_prefix = "^ ";     
 		} else if (commit->object.flags & BOUNDARY) {
-			prefix = "= ";
+			commit_prefix = "= ";
 		} 
         }        		
-	printf("%s%s", prefix, sha1_to_hex(commit->object.sha1));
+	printf("%s%s", commit_prefix, sha1_to_hex(commit->object.sha1));
 	if (show_parents) {
 		struct commit_list *parents = commit->parents;
 		while (parents) {
@@ -59,7 +64,11 @@ static void show_commit(struct commit *commit)
 			parents = parents->next;
 		}
 	}
-	putchar('\n');
+	if (commit_format == CMIT_FMT_ONELINE)
+		putchar(' ');
+	else
+		putchar('\n');
+
 	if (verbose_header) {
 		static char pretty_header[16384];
 		pretty_print_commit(commit_format, commit->buffer, ~0, pretty_header, sizeof(pretty_header));
@@ -78,10 +87,12 @@ static int filter_commit(struct commit * commit)
 		return CONTINUE;
 	if (max_age != -1 && (commit->date < max_age)) {
 		stop_traversal=1;
-		return merge_order?CONTINUE:STOP;
+		return CONTINUE;
 	}
 	if (max_count != -1 && !max_count--)
 		return STOP;
+	if (no_merges && (commit->parents && commit->parents->next))
+		return CONTINUE;
 	return DO;
 }
 
@@ -137,11 +148,16 @@ static struct object_list **process_tree(struct tree *tree, struct object_list *
 		die("bad tree object %s", sha1_to_hex(obj->sha1));
 	obj->flags |= SEEN;
 	p = add_object(obj, p, name);
-	for (entry = tree->entries ; entry ; entry = entry->next) {
+	entry = tree->entries;
+	tree->entries = NULL;
+	while (entry) {
+		struct tree_entry_list *next = entry->next;
 		if (entry->directory)
 			p = process_tree(entry->item.tree, p, entry->name);
 		else
 			p = process_blob(entry->item.blob, p, entry->name);
+		free(entry);
+		entry = next;
 	}
 	return p;
 }
@@ -179,7 +195,17 @@ static void show_commit_list(struct commit_list *list)
 		die("unknown pending object %s (%s)", sha1_to_hex(obj->sha1), name);
 	}
 	while (objects) {
-		printf("%s %s\n", sha1_to_hex(objects->item->sha1), objects->name);
+		/* An object with name "foo\n0000000000000000000000000000000000000000"
+		 * can be used confuse downstream git-pack-objects very badly.
+		 */
+		const char *ep = strchr(objects->name, '\n');
+		if (ep) {
+			printf("%s %.*s\n", sha1_to_hex(objects->item->sha1),
+			       (int) (ep - objects->name),
+			       objects->name);
+		}
+		else
+			printf("%s %s\n", sha1_to_hex(objects->item->sha1), objects->name);
 		objects = objects->next;
 	}
 }
@@ -208,12 +234,15 @@ static void mark_tree_uninteresting(struct tree *tree)
 	if (parse_tree(tree) < 0)
 		die("bad tree %s", sha1_to_hex(obj->sha1));
 	entry = tree->entries;
+	tree->entries = NULL;
 	while (entry) {
+		struct tree_entry_list *next = entry->next;
 		if (entry->directory)
 			mark_tree_uninteresting(entry->item.tree);
 		else
 			mark_blob_uninteresting(entry->item.blob);
-		entry = entry->next;
+		free(entry);
+		entry = next;
 	}
 }
 
@@ -221,8 +250,6 @@ static void mark_parents_uninteresting(struct commit *commit)
 {
 	struct commit_list *parents = commit->parents;
 
-	if (tree_objects)
-		mark_tree_uninteresting(commit->tree);
 	while (parents) {
 		struct commit *commit = parents->item;
 		commit->object.flags |= UNINTERESTING;
@@ -262,29 +289,6 @@ static int everybody_uninteresting(struct commit_list *orig)
 			continue;
 		return 0;
 	}
-
-	/*
-	 * Ok, go back and mark all the edge trees uninteresting,
-	 * since otherwise we can have situations where a parent
-	 * that was marked uninteresting (and we never even had
-	 * to look at) had lots of objects that we don't want to
-	 * include.
-	 *
-	 * NOTE! This still doesn't mean that the object list is
-	 * "correct", since we may end up listing objects that
-	 * even older commits (that we don't list) do actually
-	 * reference, but it gets us to a minimal list (or very
-	 * close) in practice.
-	 */
-	if (!tree_objects)
-		return 1;
-
-	while (orig) {
-		struct commit *commit = orig->item;
-		if (!parse_commit(commit) && commit->tree)
-			mark_tree_uninteresting(commit->tree);
-		orig = orig->next;
-	}
 	return 1;
 }
 
@@ -360,6 +364,19 @@ static struct commit_list *find_bisection(struct commit_list *list)
 	return best;
 }
 
+static void mark_edges_uninteresting(struct commit_list *list)
+{
+	for ( ; list; list = list->next) {
+		struct commit_list *parents = list->item->parents;
+
+		for ( ; parents; parents = parents->next) {
+			struct commit *commit = parents->item;
+			if (commit->object.flags & UNINTERESTING)
+				mark_tree_uninteresting(commit->tree);
+		}
+	}
+}
+
 static struct commit_list *limit_list(struct commit_list *list)
 {
 	struct commit_list *newlist = NULL;
@@ -368,6 +385,8 @@ static struct commit_list *limit_list(struct commit_list *list)
 		struct commit *commit = pop_most_recent_commit(&list, SEEN);
 		struct object *obj = &commit->object;
 
+		if (max_age != -1 && (commit->date < max_age))
+			obj->flags |= UNINTERESTING;
 		if (unpacked && has_sha1_pack(obj->sha1))
 			obj->flags |= UNINTERESTING;
 		if (obj->flags & UNINTERESTING) {
@@ -376,8 +395,12 @@ static struct commit_list *limit_list(struct commit_list *list)
 				break;
 			continue;
 		}
+		if (min_age != -1 && (commit->date > min_age))
+			continue;
 		p = &commit_list_insert(commit, p)->next;
 	}
+	if (tree_objects)
+		mark_edges_uninteresting(newlist);
 	if (bisect_list)
 		newlist = find_bisection(newlist);
 	return newlist;
@@ -408,6 +431,8 @@ static struct commit *get_commit_reference(const char *name, unsigned int flags)
 		if (tag_objects && !(object->flags & UNINTERESTING))
 			add_pending_object(object, tag->tag);
 		object = parse_object(tag->tagged->sha1);
+		if (!object)
+			die("bad object %s", sha1_to_hex(tag->tagged->sha1));
 	}
 
 	/*
@@ -457,14 +482,41 @@ static struct commit *get_commit_reference(const char *name, unsigned int flags)
 	die("%s is unknown object", name);
 }
 
+static void handle_one_commit(struct commit *com, struct commit_list **lst)
+{
+	if (!com || com->object.flags & SEEN)
+		return;
+	com->object.flags |= SEEN;
+	commit_list_insert(com, lst);
+}
+
+/* for_each_ref() callback does not allow user data -- Yuck. */
+static struct commit_list **global_lst;
+
+static int include_one_commit(const char *path, const unsigned char *sha1)
+{
+	struct commit *com = get_commit_reference(path, 0);
+	handle_one_commit(com, global_lst);
+	return 0;
+}
+
+static void handle_all(struct commit_list **lst)
+{
+	global_lst = lst;
+	for_each_ref(include_one_commit);
+	global_lst = NULL;
+}
+
 int main(int argc, char **argv)
 {
 	struct commit_list *list = NULL;
 	int i, limited = 0;
 
+	setup_git_directory();
 	for (i = 1 ; i < argc; i++) {
 		int flags;
 		char *arg = argv[i];
+		char *dotdot;
 		struct commit *commit;
 
 		if (!strncmp(arg, "--max-count=", 12)) {
@@ -473,10 +525,12 @@ int main(int argc, char **argv)
 		}
 		if (!strncmp(arg, "--max-age=", 10)) {
 			max_age = atoi(arg + 10);
+			limited = 1;
 			continue;
 		}
 		if (!strncmp(arg, "--min-age=", 10)) {
 			min_age = atoi(arg + 10);
+			limited = 1;
 			continue;
 		}
 		if (!strcmp(arg, "--header")) {
@@ -487,7 +541,14 @@ int main(int argc, char **argv)
 			commit_format = get_commit_format(arg+8);
 			verbose_header = 1;
 			hdr_termination = '\n';
-			prefix = "commit ";
+			if (commit_format == CMIT_FMT_ONELINE)
+				commit_prefix = "";
+			else
+				commit_prefix = "commit ";
+			continue;
+		}
+		if (!strncmp(arg, "--no-merges", 11)) {
+			no_merges = 1;
 			continue;
 		}
 		if (!strcmp(arg, "--parents")) {
@@ -498,6 +559,10 @@ int main(int argc, char **argv)
 			bisect_list = 1;
 			continue;
 		}
+		if (!strcmp(arg, "--all")) {
+			handle_all(&list);
+			continue;
+		}
 		if (!strcmp(arg, "--objects")) {
 			tag_objects = 1;
 			tree_objects = 1;
@@ -523,23 +588,40 @@ int main(int argc, char **argv)
 			continue;
 		}
 
+		if (show_breaks && !merge_order)
+			usage(rev_list_usage);
+
 		flags = 0;
+		dotdot = strstr(arg, "..");
+		if (dotdot) {
+			char *next = dotdot + 2;
+			struct commit *exclude = NULL;
+			struct commit *include = NULL;
+			*dotdot = 0;
+			if (!*next)
+				next = "HEAD";
+			exclude = get_commit_reference(arg, UNINTERESTING);
+			include = get_commit_reference(next, 0);
+			if (exclude && include) {
+				limited = 1;
+				handle_one_commit(exclude, &list);
+				handle_one_commit(include, &list);
+				continue;
+			}
+			*dotdot = '.';
+		}
 		if (*arg == '^') {
 			flags = UNINTERESTING;
 			arg++;
 			limited = 1;
 		}
-		if (show_breaks && !merge_order)
-			usage(rev_list_usage);
 		commit = get_commit_reference(arg, flags);
-		if (!commit)
-			continue;
-		if (commit->object.flags & SEEN)
-			continue;
-		commit->object.flags |= SEEN;
-		commit_list_insert(commit, &list);
+		handle_one_commit(commit, &list);
 	}
 
+	save_commit_buffer = verbose_header;
+	track_object_refs = 0;
+
 	if (!merge_order) {		
 		sort_by_date(&list);
 	        if (limited)