projects / thirdparty / git.git / blame
| Commit | Line | Data |
|---|---|---|
| 4250a5e5 DB |
1 | #include "pull.h" |
| 2 | ||
| 3 | #include "cache.h" | |
| 4 | #include "commit.h" | |
| 5 | #include "tree.h" | |
| 6 | ||
| 7 | int get_tree = 0; | |
| 8 | int get_history = 0; | |
| 9 | int get_all = 0; | |
| 10 | ||
| ee4f439f JH |
11 | static int make_sure_we_have_it(unsigned char *sha1) |
| 12 | { | |
| 13 | if (has_sha1_file(sha1)) | |
| 14 | return 0; | |
| 15 | return fetch(sha1); | |
| 16 | } | |
| 17 | ||
| 4250a5e5 DB |
18 | static int process_tree(unsigned char *sha1) |
| 19 | { | |
| 20 | struct tree *tree = lookup_tree(sha1); | |
| 21 | struct tree_entry_list *entries; | |
| 22 | ||
| 23 | if (parse_tree(tree)) | |
| 24 | return -1; | |
| 25 | ||
| 26 | for (entries = tree->entries; entries; entries = entries->next) { | |
| ee4f439f | 27 | if (make_sure_we_have_it(entries->item.tree->object.sha1)) |
| 4250a5e5 DB |
28 | return -1; |
| 29 | if (entries->directory) { | |
| 30 | if (process_tree(entries->item.tree->object.sha1)) | |
| 31 | return -1; | |
| 32 | } | |
| 33 | } | |
| 34 | return 0; | |
| 35 | } | |
| 36 | ||
| 37 | static int process_commit(unsigned char *sha1) | |
| 38 | { | |
| 39 | struct commit *obj = lookup_commit(sha1); | |
| 40 | ||
| ee4f439f | 41 | if (make_sure_we_have_it(sha1)) |
| 4250a5e5 DB |
42 | return -1; |
| 43 | ||
| 44 | if (parse_commit(obj)) | |
| 45 | return -1; | |
| 46 | ||
| 47 | if (get_tree) { | |
| ee4f439f | 48 | if (make_sure_we_have_it(obj->tree->object.sha1)) |
| 4250a5e5 DB |
49 | return -1; |
| 50 | if (process_tree(obj->tree->object.sha1)) | |
| 51 | return -1; | |
| 52 | if (!get_all) | |
| 53 | get_tree = 0; | |
| 54 | } | |
| 55 | if (get_history) { | |
| 56 | struct commit_list *parents = obj->parents; | |
| 57 | for (; parents; parents = parents->next) { | |
| 58 | if (has_sha1_file(parents->item->object.sha1)) | |
| 59 | continue; | |
| ee4f439f | 60 | if (make_sure_we_have_it(parents->item->object.sha1)) { |
| 4250a5e5 DB |
61 | /* The server might not have it, and |
| 62 | * we don't mind. | |
| 63 | */ | |
| 64 | continue; | |
| 65 | } | |
| 66 | if (process_commit(parents->item->object.sha1)) | |
| 67 | return -1; | |
| 68 | } | |
| 69 | } | |
| 70 | return 0; | |
| 71 | } | |
| 72 | ||
| 73 | int pull(char *target) | |
| 74 | { | |
| 75 | int retval; | |
| 76 | unsigned char sha1[20]; | |
| 77 | retval = get_sha1_hex(target, sha1); | |
| 78 | if (retval) | |
| 79 | return retval; | |
| ee4f439f | 80 | retval = make_sure_we_have_it(sha1); |
| 4250a5e5 DB |
81 | if (retval) |
| 82 | return retval; | |
| 83 | return process_commit(sha1); | |
| 84 | } |