9 /* 1 means "get delta", 2 means "really check delta harder */
12 int get_verbosely = 0;
13 static unsigned char current_commit_sha1[20];
15 static const char commitS[] = "commit";
16 static const char treeS[] = "tree";
17 static const char blobS[] = "blob";
19 void pull_say(const char *fmt, const char *hex) {
21 fprintf(stderr, fmt, hex);
24 static void report_missing(const char *what, const unsigned char *missing)
28 strcpy(missing_hex, sha1_to_hex(missing));;
30 "Cannot obtain needed %s %s\nwhile processing commit %s.\n",
31 what, missing_hex, sha1_to_hex(current_commit_sha1));
34 static int make_sure_we_have_it(const char *what, unsigned char *sha1)
38 if (!has_sha1_file(sha1)) {
41 report_missing(what, sha1);
43 else if (get_delta < 2)
48 status = sha1_delta_base(sha1, delta_sha1);
50 status = make_sure_we_have_it(what, delta_sha1);
55 static int process_tree(unsigned char *sha1)
57 struct tree *tree = lookup_tree(sha1);
58 struct tree_entry_list *entries;
63 for (entries = tree->entries; entries; entries = entries->next) {
64 const char *what = entries->directory ? treeS : blobS;
65 if (make_sure_we_have_it(what, entries->item.tree->object.sha1))
67 if (entries->directory) {
68 if (process_tree(entries->item.tree->object.sha1))
75 static int process_commit(unsigned char *sha1)
77 struct commit *obj = lookup_commit(sha1);
79 if (make_sure_we_have_it(commitS, sha1))
82 if (parse_commit(obj))
86 if (make_sure_we_have_it(treeS, obj->tree->object.sha1))
88 if (process_tree(obj->tree->object.sha1))
94 struct commit_list *parents = obj->parents;
95 for (; parents; parents = parents->next) {
96 if (has_sha1_file(parents->item->object.sha1))
98 if (make_sure_we_have_it(NULL,
99 parents->item->object.sha1)) {
100 /* The server might not have it, and
105 if (process_commit(parents->item->object.sha1))
107 memcpy(current_commit_sha1, sha1, 20);
113 int pull(char *target)
116 unsigned char sha1[20];
117 retval = get_sha1_hex(target, sha1);
120 retval = make_sure_we_have_it(commitS, sha1);
123 memcpy(current_commit_sha1, sha1, 20);
124 return process_commit(sha1);