grep doc: add --break / --heading / -W to synopsis

[git.git] / revision.c

diff --git a/revision.c b/revision.c
index 3d2deedaf8e50c6a71b9750dacf602bb5b9238b9..18be62b3169095b908cb521cf9be211a9339029d 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -40,6 +40,47 @@ char *path_name(const struct name_path *path, const char *name)
        return n;
 }
 
+static int show_path_component_truncated(FILE *out, const char *name, int len)
+{
+       int cnt;
+       for (cnt = 0; cnt < len; cnt++) {
+               int ch = name[cnt];
+               if (!ch || ch == '\n')
+                       return -1;
+               fputc(ch, out);
+       }
+       return len;
+}
+
+static int show_path_truncated(FILE *out, const struct name_path *path)
+{
+       int emitted, ours;
+
+       if (!path)
+               return 0;
+       emitted = show_path_truncated(out, path->up);
+       if (emitted < 0)
+               return emitted;
+       if (emitted)
+               fputc('/', out);
+       ours = show_path_component_truncated(out, path->elem, path->elem_len);
+       if (ours < 0)
+               return ours;
+       return ours || emitted;
+}
+
+void show_object_with_name(FILE *out, struct object *obj, const struct name_path *path, const char *component)
+{
+       struct name_path leaf;
+       leaf.up = (struct name_path *)path;
+       leaf.elem = component;
+       leaf.elem_len = strlen(component);
+
+       fprintf(out, "%s ", sha1_to_hex(obj->sha1));
+       show_path_truncated(out, &leaf);
+       fputc('\n', out);
+}
+
 void add_object(struct object *obj,
                struct object_array *p,
                struct name_path *path,
@@ -185,6 +226,13 @@ static struct object *get_reference(struct rev_info *revs, const char *name, con
        return object;
 }
 
+void add_pending_sha1(struct rev_info *revs, const char *name,
+                     const unsigned char *sha1, unsigned int flags)
+{
+       struct object *object = get_reference(revs, name, sha1, flags);
+       add_pending_object(revs, object, name);
+}
+
 static struct commit *handle_commit(struct rev_info *revs, struct object *object, const char *name)
 {
        unsigned long flags = object->flags;
@@ -368,7 +416,7 @@ static int rev_same_tree_as_empty(struct rev_info *revs, struct commit *commit)
 static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
 {
        struct commit_list **pp, *parent;
-       int tree_changed = 0, tree_same = 0;
+       int tree_changed = 0, tree_same = 0, nth_parent = 0;
 
        /*
         * If we don't do pruning, everything is interesting
@@ -396,6 +444,14 @@ static void try_to_simplify_commit(struct rev_info *revs, struct commit *commit)
        while ((parent = *pp) != NULL) {
                struct commit *p = parent->item;
 
+               /*
+                * Do not compare with later parents when we care only about
+                * the first parent chain, in order to avoid derailing the
+                * traversal to follow a side branch that brought everything
+                * in the path we are limited to by the pathspec.
+                */
+               if (revs->first_parent_only && nth_parent++)
+                       break;
                if (parse_commit(p) < 0)
                        die("cannot simplify commit %s (because of %s)",
                            sha1_to_hex(commit->object.sha1),
@@ -856,7 +912,7 @@ static int handle_one_ref(const char *path, const unsigned char *sha1, int flag,
        struct object *object = get_reference(cb->all_revs, path, sha1,
                                              cb->all_flags);
        add_rev_cmdline(cb->all_revs, object, path, REV_CMD_REF, cb->all_flags);
-       add_pending_object(cb->all_revs, object, path);
+       add_pending_sha1(cb->all_revs, path, sha1, cb->all_flags);
        return 0;
 }
 
@@ -1377,6 +1433,11 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
                revs->tree_objects = 1;
                revs->blob_objects = 1;
                revs->edge_hint = 1;
+       } else if (!strcmp(arg, "--verify-objects")) {
+               revs->tag_objects = 1;
+               revs->tree_objects = 1;
+               revs->blob_objects = 1;
+               revs->verify_objects = 1;
        } else if (!strcmp(arg, "--unpacked")) {
                revs->unpacked = 1;
        } else if (!prefixcmp(arg, "--unpacked=")) {
@@ -1416,6 +1477,8 @@ static int handle_revision_opt(struct rev_info *revs, int argc, const char **arg
                revs->show_notes = 1;
                revs->show_notes_given = 1;
                revs->notes_opt.use_default_notes = 1;
+       } else if (!strcmp(arg, "--show-signature")) {
+               revs->show_signature = 1;
        } else if (!prefixcmp(arg, "--show-notes=") ||
                   !prefixcmp(arg, "--notes=")) {
                struct strbuf buf = STRBUF_INIT;
@@ -2004,7 +2067,8 @@ int prepare_revision_walk(struct rev_info *revs)
                }
                e++;
        }
-       free(list);
+       if (!revs->leak_pending)
+               free(list);
 
        if (revs->no_walk)
                return 0;
@@ -2072,7 +2136,6 @@ static int commit_match(struct commit *commit, struct rev_info *opt)
        if (!opt->grep_filter.pattern_list && !opt->grep_filter.header_list)
                return 1;
        return grep_buffer(&opt->grep_filter,
-                          NULL, /* we say nothing, not even filename */
                           commit->buffer, strlen(commit->buffer));
 }