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Commit | Line | Data |
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ed09aef0 JS |
1 | #include "cache.h" |
2 | #include "commit.h" | |
3 | ||
4 | static int is_shallow = -1; | |
5 | ||
6 | int register_shallow(const unsigned char *sha1) | |
7 | { | |
8 | struct commit_graft *graft = | |
9 | xmalloc(sizeof(struct commit_graft)); | |
10 | struct commit *commit = lookup_commit(sha1); | |
11 | ||
12 | hashcpy(graft->sha1, sha1); | |
13 | graft->nr_parent = -1; | |
14 | if (commit && commit->object.parsed) | |
15 | commit->parents = NULL; | |
16 | return register_commit_graft(graft, 0); | |
17 | } | |
18 | ||
19 | int is_repository_shallow() | |
20 | { | |
21 | FILE *fp; | |
22 | char buf[1024]; | |
23 | ||
24 | if (is_shallow >= 0) | |
25 | return is_shallow; | |
26 | ||
27 | fp = fopen(git_path("shallow"), "r"); | |
28 | if (!fp) { | |
29 | is_shallow = 0; | |
30 | return is_shallow; | |
31 | } | |
32 | is_shallow = 1; | |
33 | ||
34 | while (fgets(buf, sizeof(buf), fp)) { | |
35 | unsigned char sha1[20]; | |
36 | if (get_sha1_hex(buf, sha1)) | |
37 | die("bad shallow line: %s", buf); | |
38 | register_shallow(sha1); | |
39 | } | |
40 | fclose(fp); | |
41 | return is_shallow; | |
42 | } | |
43 | ||
44 | struct commit_list *get_shallow_commits(struct object_array *heads, int depth) | |
45 | { | |
46 | int i = 0, cur_depth = 0; | |
47 | struct commit_list *result = NULL; | |
48 | struct object_array stack = {0, 0, NULL}; | |
49 | struct commit *commit = NULL; | |
50 | ||
51 | while (commit || i < heads->nr || stack.nr) { | |
52 | struct commit_list *p; | |
53 | if (!commit) { | |
54 | if (i < heads->nr) { | |
55 | commit = (struct commit *) | |
56 | heads->objects[i++].item; | |
57 | if (commit->object.type != OBJ_COMMIT) { | |
58 | commit = NULL; | |
59 | continue; | |
60 | } | |
61 | commit->util = xcalloc(1, sizeof(int)); | |
62 | cur_depth = 0; | |
63 | } else { | |
64 | commit = (struct commit *) | |
65 | stack.objects[--stack.nr].item; | |
66 | cur_depth = *(int *)commit->util; | |
67 | } | |
68 | } | |
69 | parse_commit(commit); | |
70 | cur_depth++; | |
71 | for (p = commit->parents, commit = NULL; p; p = p->next) { | |
72 | if (!p->item->util) { | |
73 | int *pointer = xmalloc(sizeof(int)); | |
74 | p->item->util = pointer; | |
75 | *pointer = cur_depth; | |
76 | } else { | |
77 | int *pointer = p->item->util; | |
78 | if (cur_depth >= *pointer) | |
79 | continue; | |
80 | *pointer = cur_depth; | |
81 | } | |
82 | if (cur_depth < depth) { | |
83 | if (p->next) | |
84 | add_object_array(&p->item->object, | |
85 | NULL, &stack); | |
86 | else { | |
87 | commit = p->item; | |
88 | cur_depth = *(int *)commit->util; | |
89 | } | |
90 | } else | |
91 | commit_list_insert(p->item, &result); | |
92 | } | |
93 | } | |
94 | ||
95 | return result; | |
96 | } | |
97 |