list-objects.c

   1 #include "cache.h"
   2 #include "tag.h"
   3 #include "commit.h"
   4 #include "tree.h"
   5 #include "blob.h"
   6 #include "diff.h"
   7 #include "tree-walk.h"
   8 #include "revision.h"
   9 #include "list-objects.h"
  10
  11 static void process_blob(struct rev_info *revs,
  12                          struct blob *blob,
  13                          struct object_array *p,
  14                          struct name_path *path,
  15                          const char *name)
  16 {
  17         struct object *obj = &blob->object;
  18
  19         if (!revs->blob_objects)
  20                 return;
  21         if (obj->flags & (UNINTERESTING | SEEN))
  22                 return;
  23         obj->flags |= SEEN;
  24         name = xstrdup(name);
  25         add_object(obj, p, path, name);
  26 }
  27
  28 static void process_tree(struct rev_info *revs,
  29                          struct tree *tree,
  30                          struct object_array *p,
  31                          struct name_path *path,
  32                          const char *name)
  33 {
  34         struct object *obj = &tree->object;
  35         struct tree_desc desc;
  36         struct name_entry entry;
  37         struct name_path me;
  38
  39         if (!revs->tree_objects)
  40                 return;
  41         if (obj->flags & (UNINTERESTING | SEEN))
  42                 return;
  43         if (parse_tree(tree) < 0)
  44                 die("bad tree object %s", sha1_to_hex(obj->sha1));
  45         obj->flags |= SEEN;
  46         name = xstrdup(name);
  47         add_object(obj, p, path, name);
  48         me.up = path;
  49         me.elem = name;
  50         me.elem_len = strlen(name);
  51
  52         desc.buf = tree->buffer;
  53         desc.size = tree->size;
  54
  55         while (tree_entry(&desc, &entry)) {
  56                 if (S_ISDIR(entry.mode))
  57                         process_tree(revs,
  58                                      lookup_tree(entry.sha1),
  59                                      p, &me, entry.path);
  60                 else
  61                         process_blob(revs,
  62                                      lookup_blob(entry.sha1),
  63                                      p, &me, entry.path);
  64         }
  65         free(tree->buffer);
  66         tree->buffer = NULL;
  67 }
  68
  69 static void mark_edge_parents_uninteresting(struct commit *commit,
  70                                             struct rev_info *revs,
  71                                             show_edge_fn show_edge)
  72 {
  73         struct commit_list *parents;
  74
  75         for (parents = commit->parents; parents; parents = parents->next) {
  76                 struct commit *parent = parents->item;
  77                 if (!(parent->object.flags & UNINTERESTING))
  78                         continue;
  79                 mark_tree_uninteresting(parent->tree);
  80                 if (revs->edge_hint && !(parent->object.flags & SHOWN)) {
  81                         parent->object.flags |= SHOWN;
  82                         show_edge(parent);
  83                 }
  84         }
  85 }
  86
  87 void mark_edges_uninteresting(struct commit_list *list,
  88                               struct rev_info *revs,
  89                               show_edge_fn show_edge)
  90 {
  91         for ( ; list; list = list->next) {
  92                 struct commit *commit = list->item;
  93
  94                 if (commit->object.flags & UNINTERESTING) {
  95                         mark_tree_uninteresting(commit->tree);
  96                         continue;
  97                 }
  98                 mark_edge_parents_uninteresting(commit, revs, show_edge);
  99         }
 100 }
 101
 102 void traverse_commit_list(struct rev_info *revs,
 103                           void (*show_commit)(struct commit *),
 104                           void (*show_object)(struct object_array_entry *))
 105 {
 106         int i;
 107         struct commit *commit;
 108         struct object_array objects = { 0, 0, NULL };
 109
 110         while ((commit = get_revision(revs)) != NULL) {
 111                 process_tree(revs, commit->tree, &objects, NULL, "");
 112                 show_commit(commit);
 113         }
 114         for (i = 0; i < revs->pending.nr; i++) {
 115                 struct object_array_entry *pending = revs->pending.objects + i;
 116                 struct object *obj = pending->item;
 117                 const char *name = pending->name;
 118                 if (obj->flags & (UNINTERESTING | SEEN))
 119                         continue;
 120                 if (obj->type == OBJ_TAG) {
 121                         obj->flags |= SEEN;
 122                         add_object_array(obj, name, &objects);
 123                         continue;
 124                 }
 125                 if (obj->type == OBJ_TREE) {
 126                         process_tree(revs, (struct tree *)obj, &objects,
 127                                      NULL, name);
 128                         continue;
 129                 }
 130                 if (obj->type == OBJ_BLOB) {
 131                         process_blob(revs, (struct blob *)obj, &objects,
 132                                      NULL, name);
 133                         continue;
 134                 }
 135                 die("unknown pending object %s (%s)",
 136                     sha1_to_hex(obj->sha1), name);
 137         }
 138         for (i = 0; i < objects.nr; i++)
 139                 show_object(&objects.objects[i]);
 140 }