X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=revision.c;h=76499dcf38bb9c92bd52d251549725bceb6a9ba1;hb=refs%2Ftags%2Fv1.5.0.7;hp=f1e0caaae3d2a96de6cf9bad12e8641c19d788dd;hpb=01fe679a341ed3b1a816404faf76bf454712aa2f;p=git.git

diff --git a/revision.c b/revision.c
index f1e0caaae..76499dcf3 100644
--- a/revision.c
+++ b/revision.c
@@ -6,8 +6,8 @@
 #include "diff.h"
 #include "refs.h"
 #include "revision.h"
-#include <regex.h>
 #include "grep.h"
+#include "reflog-walk.h"
 
 static char *path_name(struct name_path *path, const char *name)
 {
@@ -116,7 +116,12 @@ void mark_parents_uninteresting(struct commit *commit)
 
 void add_pending_object(struct rev_info *revs, struct object *obj, const char *name)
 {
+	if (revs->no_walk && (obj->flags & UNINTERESTING))
+		die("object ranges do not make sense when not walking revisions");
 	add_object_array(obj, name, &revs->pending);
+	if (revs->reflog_info && obj->type == OBJ_COMMIT)
+		add_reflog_for_walk(revs->reflog_info,
+				(struct commit *)obj, name);
 }
 
 static struct object *get_reference(struct rev_info *revs, const char *name, const unsigned char *sha1, unsigned int flags)
@@ -344,6 +349,7 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
 static void add_parents_to_list(struct rev_info *revs, struct commit *commit, struct commit_list **list)
 {
 	struct commit_list *parent = commit->parents;
+	unsigned left_flag;
 
 	if (commit->object.flags & ADDED)
 		return;
@@ -388,6 +394,7 @@ static void add_parents_to_list(struct rev_info *revs, struct commit *commit, st
 	if (revs->no_walk)
 		return;
 
+	left_flag = (commit->object.flags & SYMMETRIC_LEFT);
 	parent = commit->parents;
 	while (parent) {
 		struct commit *p = parent->item;
@@ -395,6 +402,7 @@ static void add_parents_to_list(struct rev_info *revs, struct commit *commit, st
 		parent = parent->next;
 
 		parse_commit(p);
+		p->object.flags |= left_flag;
 		if (p->object.flags & SEEN)
 			continue;
 		p->object.flags |= SEEN;
@@ -418,9 +426,6 @@ static void limit_list(struct rev_info *revs)
 
 		if (revs->max_age != -1 && (commit->date < revs->max_age))
 			obj->flags |= UNINTERESTING;
-		if (revs->unpacked &&
-		    has_sha1_pack(obj->sha1, revs->ignore_packed))
-			obj->flags |= UNINTERESTING;
 		add_parents_to_list(revs, commit, &list);
 		if (obj->flags & UNINTERESTING) {
 			mark_parents_uninteresting(commit);
@@ -465,21 +470,71 @@ static void limit_list(struct rev_info *revs)
 	revs->commits = newlist;
 }
 
-static int all_flags;
-static struct rev_info *all_revs;
+struct all_refs_cb {
+	int all_flags;
+	int warned_bad_reflog;
+	struct rev_info *all_revs;
+	const char *name_for_errormsg;
+};
 
-static int handle_one_ref(const char *path, const unsigned char *sha1)
+static int handle_one_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data)
 {
-	struct object *object = get_reference(all_revs, path, sha1, all_flags);
-	add_pending_object(all_revs, object, "");
+	struct all_refs_cb *cb = cb_data;
+	struct object *object = get_reference(cb->all_revs, path, sha1,
+					      cb->all_flags);
+	add_pending_object(cb->all_revs, object, "");
 	return 0;
 }
 
 static void handle_all(struct rev_info *revs, unsigned flags)
 {
-	all_revs = revs;
-	all_flags = flags;
-	for_each_ref(handle_one_ref);
+	struct all_refs_cb cb;
+	cb.all_revs = revs;
+	cb.all_flags = flags;
+	for_each_ref(handle_one_ref, &cb);
+}
+
+static void handle_one_reflog_commit(unsigned char *sha1, void *cb_data)
+{
+	struct all_refs_cb *cb = cb_data;
+	if (!is_null_sha1(sha1)) {
+		struct object *o = parse_object(sha1);
+		if (o) {
+			o->flags |= cb->all_flags;
+			add_pending_object(cb->all_revs, o, "");
+		}
+		else if (!cb->warned_bad_reflog) {
+			warn("reflog of '%s' references pruned commits",
+				cb->name_for_errormsg);
+			cb->warned_bad_reflog = 1;
+		}
+	}
+}
+
+static int handle_one_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
+		const char *email, unsigned long timestamp, int tz,
+		const char *message, void *cb_data)
+{
+	handle_one_reflog_commit(osha1, cb_data);
+	handle_one_reflog_commit(nsha1, cb_data);
+	return 0;
+}
+
+static int handle_one_reflog(const char *path, const unsigned char *sha1, int flag, void *cb_data)
+{
+	struct all_refs_cb *cb = cb_data;
+	cb->warned_bad_reflog = 0;
+	cb->name_for_errormsg = path;
+	for_each_reflog_ent(path, handle_one_reflog_ent, cb_data);
+	return 0;
+}
+
+static void handle_reflog(struct rev_info *revs, unsigned flags)
+{
+	struct all_refs_cb cb;
+	cb.all_revs = revs;
+	cb.all_flags = flags;
+	for_each_reflog(handle_one_reflog, &cb);
 }
 
 static int add_parents_only(struct rev_info *revs, const char *arg, int flags)
@@ -527,6 +582,7 @@ void init_revisions(struct rev_info *revs, const char *prefix)
 	revs->prefix = prefix;
 	revs->max_age = -1;
 	revs->min_age = -1;
+	revs->skip_count = -1;
 	revs->max_count = -1;
 
 	revs->prune_fn = NULL;
@@ -643,7 +699,7 @@ int handle_revision_arg(const char *arg, struct rev_info *revs,
 				add_pending_commit_list(revs, exclude,
 							flags_exclude);
 				free_commit_list(exclude);
-				a->object.flags |= flags;
+				a->object.flags |= flags | SYMMETRIC_LEFT;
 			} else
 				a->object.flags |= flags_exclude;
 			b->object.flags |= flags;
@@ -660,6 +716,13 @@ int handle_revision_arg(const char *arg, struct rev_info *revs,
 			return 0;
 		*dotdot = '^';
 	}
+	dotdot = strstr(arg, "^!");
+	if (dotdot && !dotdot[2]) {
+		*dotdot = 0;
+		if (!add_parents_only(revs, arg, flags ^ UNINTERESTING))
+			*dotdot = '^';
+	}
+
 	local_flags = 0;
 	if (*arg == '^') {
 		local_flags = UNINTERESTING;
@@ -756,6 +819,10 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 				revs->max_count = atoi(arg + 12);
 				continue;
 			}
+			if (!strncmp(arg, "--skip=", 7)) {
+				revs->skip_count = atoi(arg + 7);
+				continue;
+			}
 			/* accept -<digit>, like traditional "head" */
 			if ((*arg == '-') && isdigit(arg[1])) {
 				revs->max_count = atoi(arg + 1);
@@ -799,6 +866,15 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 				handle_all(revs, flags);
 				continue;
 			}
+			if (!strcmp(arg, "--reflog")) {
+				handle_reflog(revs, flags);
+				continue;
+			}
+			if (!strcmp(arg, "-g") ||
+					!strcmp(arg, "--walk-reflogs")) {
+				init_reflog_walk(&revs->reflog_info);
+				continue;
+			}
 			if (!strcmp(arg, "--not")) {
 				flags ^= UNINTERESTING;
 				continue;
@@ -846,6 +922,10 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 				revs->boundary = 1;
 				continue;
 			}
+			if (!strcmp(arg, "--left-right")) {
+				revs->left_right = 1;
+				continue;
+			}
 			if (!strcmp(arg, "--objects")) {
 				revs->tag_objects = 1;
 				revs->tree_objects = 1;
@@ -972,6 +1052,14 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 				all_match = 1;
 				continue;
 			}
+			if (!strncmp(arg, "--encoding=", 11)) {
+				arg += 11;
+				if (strcmp(arg, "none"))
+					git_log_output_encoding = strdup(arg);
+				else
+					git_log_output_encoding = "";
+				continue;
+			}
 
 			opts = diff_opt_parse(&revs->diffopt, argv+i, argc-i);
 			if (opts > 0) {
@@ -1015,7 +1103,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 		add_pending_object(revs, object, def);
 	}
 
-	if (revs->topo_order || revs->unpacked)
+	if (revs->topo_order)
 		revs->limited = 1;
 
 	if (revs->prune_data) {
@@ -1044,21 +1132,23 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
 void prepare_revision_walk(struct rev_info *revs)
 {
 	int nr = revs->pending.nr;
-	struct object_array_entry *list = revs->pending.objects;
+	struct object_array_entry *e, *list;
 
+	e = list = revs->pending.objects;
 	revs->pending.nr = 0;
 	revs->pending.alloc = 0;
 	revs->pending.objects = NULL;
 	while (--nr >= 0) {
-		struct commit *commit = handle_commit(revs, list->item, list->name);
+		struct commit *commit = handle_commit(revs, e->item, e->name);
 		if (commit) {
 			if (!(commit->object.flags & SEEN)) {
 				commit->object.flags |= SEEN;
 				insert_by_date(commit, &revs->commits);
 			}
 		}
-		list++;
+		e++;
 	}
+	free(list);
 
 	if (revs->no_walk)
 		return;
@@ -1119,23 +1209,11 @@ static int commit_match(struct commit *commit, struct rev_info *opt)
 			   commit->buffer, strlen(commit->buffer));
 }
 
-struct commit *get_revision(struct rev_info *revs)
+static struct commit *get_revision_1(struct rev_info *revs)
 {
-	struct commit_list *list = revs->commits;
-
-	if (!list)
+	if (!revs->commits)
 		return NULL;
 
-	/* Check the max_count ... */
-	switch (revs->max_count) {
-	case -1:
-		break;
-	case 0:
-		return NULL;
-	default:
-		revs->max_count--;
-	}
-
 	do {
 		struct commit_list *entry = revs->commits;
 		struct commit *commit = entry->item;
@@ -1143,23 +1221,27 @@ struct commit *get_revision(struct rev_info *revs)
 		revs->commits = entry->next;
 		free(entry);
 
+		if (revs->reflog_info)
+			fake_reflog_parent(revs->reflog_info, commit);
+
 		/*
 		 * If we haven't done the list limiting, we need to look at
 		 * the parents here. We also need to do the date-based limiting
 		 * that we'd otherwise have done in limit_list().
 		 */
 		if (!revs->limited) {
-			if ((revs->unpacked &&
-			     has_sha1_pack(commit->object.sha1,
-					   revs->ignore_packed)) ||
-			    (revs->max_age != -1 &&
-			     (commit->date < revs->max_age)))
+			if (revs->max_age != -1 &&
+			    (commit->date < revs->max_age))
 				continue;
 			add_parents_to_list(revs, commit, &revs->commits);
 		}
 		if (commit->object.flags & SHOWN)
 			continue;
 
+		if (revs->unpacked && has_sha1_pack(commit->object.sha1,
+						    revs->ignore_packed))
+		    continue;
+
 		/* We want to show boundary commits only when their
 		 * children are shown.  When path-limiter is in effect,
 		 * rewrite_parents() drops some commits from getting shown,
@@ -1201,3 +1283,28 @@ struct commit *get_revision(struct rev_info *revs)
 	} while (revs->commits);
 	return NULL;
 }
+
+struct commit *get_revision(struct rev_info *revs)
+{
+	struct commit *c = NULL;
+
+	if (0 < revs->skip_count) {
+		while ((c = get_revision_1(revs)) != NULL) {
+			if (revs->skip_count-- <= 0)
+				break;
+		}
+	}
+
+	/* Check the max_count ... */
+	switch (revs->max_count) {
+	case -1:
+		break;
+	case 0:
+		return NULL;
+	default:
+		revs->max_count--;
+	}
+	if (c)
+		return c;
+	return get_revision_1(revs);
+}