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Commit | Line | Data |
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5d23e133 JH |
1 | #include "cache.h" |
2 | #include "diff.h" | |
3 | #include "commit.h" | |
5289bae1 | 4 | #include "sha1-lookup.h" |
5d23e133 JH |
5 | #include "patch-ids.h" |
6 | ||
ded2c097 | 7 | int commit_patch_id(struct commit *commit, struct diff_options *options, |
5d23e133 JH |
8 | unsigned char *sha1) |
9 | { | |
10 | if (commit->parents) | |
ed1c9977 | 11 | diff_tree_sha1(commit->parents->item->object.oid.hash, |
12 | commit->object.oid.hash, "", options); | |
5d23e133 | 13 | else |
ed1c9977 | 14 | diff_root_tree_sha1(commit->object.oid.hash, "", options); |
5d23e133 JH |
15 | diffcore_std(options); |
16 | return diff_flush_patch_id(options, sha1); | |
17 | } | |
18 | ||
dfb7a1b4 KW |
19 | static int patch_id_cmp(struct patch_id *a, |
20 | struct patch_id *b, | |
21 | void *keydata) | |
5d23e133 | 22 | { |
dfb7a1b4 | 23 | return hashcmp(a->patch_id, b->patch_id); |
5d23e133 JH |
24 | } |
25 | ||
5d23e133 JH |
26 | int init_patch_ids(struct patch_ids *ids) |
27 | { | |
28 | memset(ids, 0, sizeof(*ids)); | |
29 | diff_setup(&ids->diffopts); | |
8f67f8ae | 30 | DIFF_OPT_SET(&ids->diffopts, RECURSIVE); |
28452655 | 31 | diff_setup_done(&ids->diffopts); |
dfb7a1b4 | 32 | hashmap_init(&ids->patches, (hashmap_cmp_fn)patch_id_cmp, 256); |
5d23e133 JH |
33 | return 0; |
34 | } | |
35 | ||
36 | int free_patch_ids(struct patch_ids *ids) | |
37 | { | |
dfb7a1b4 | 38 | hashmap_free(&ids->patches, 1); |
5d23e133 JH |
39 | return 0; |
40 | } | |
41 | ||
dfb7a1b4 KW |
42 | static int init_patch_id_entry(struct patch_id *patch, |
43 | struct commit *commit, | |
44 | struct patch_ids *ids) | |
5d23e133 | 45 | { |
dfb7a1b4 KW |
46 | if (commit_patch_id(commit, &ids->diffopts, patch->patch_id)) |
47 | return -1; | |
5d23e133 | 48 | |
dfb7a1b4 KW |
49 | hashmap_entry_init(patch, sha1hash(patch->patch_id)); |
50 | return 0; | |
5d23e133 JH |
51 | } |
52 | ||
53 | struct patch_id *has_commit_patch_id(struct commit *commit, | |
54 | struct patch_ids *ids) | |
55 | { | |
dfb7a1b4 KW |
56 | struct patch_id patch; |
57 | ||
58 | memset(&patch, 0, sizeof(patch)); | |
59 | if (init_patch_id_entry(&patch, commit, ids)) | |
60 | return NULL; | |
61 | ||
62 | return hashmap_get(&ids->patches, &patch, NULL); | |
5d23e133 JH |
63 | } |
64 | ||
65 | struct patch_id *add_commit_patch_id(struct commit *commit, | |
66 | struct patch_ids *ids) | |
67 | { | |
dfb7a1b4 KW |
68 | struct patch_id *key = xcalloc(1, sizeof(*key)); |
69 | ||
70 | if (init_patch_id_entry(key, commit, ids)) { | |
71 | free(key); | |
72 | return NULL; | |
73 | } | |
74 | ||
75 | hashmap_add(&ids->patches, key); | |
76 | return key; | |
5d23e133 | 77 | } |