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Commit | Line | Data |
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db699a8a NTND |
1 | #include "cache.h" |
2 | #include "commit.h" | |
3 | #include "run-command.h" | |
4 | #include "resolve-undo.h" | |
5 | #include "tree-walk.h" | |
6 | #include "unpack-trees.h" | |
7 | #include "dir.h" | |
8 | ||
9 | static const char *merge_argument(struct commit *commit) | |
10 | { | |
11 | if (commit) | |
12 | return sha1_to_hex(commit->object.sha1); | |
13 | else | |
14 | return EMPTY_TREE_SHA1_HEX; | |
15 | } | |
16 | ||
17 | int try_merge_command(const char *strategy, size_t xopts_nr, | |
18 | const char **xopts, struct commit_list *common, | |
19 | const char *head_arg, struct commit_list *remotes) | |
20 | { | |
5c1753b1 JK |
21 | struct argv_array args = ARGV_ARRAY_INIT; |
22 | int i, ret; | |
db699a8a | 23 | struct commit_list *j; |
db699a8a | 24 | |
5c1753b1 JK |
25 | argv_array_pushf(&args, "merge-%s", strategy); |
26 | for (i = 0; i < xopts_nr; i++) | |
27 | argv_array_pushf(&args, "--%s", xopts[i]); | |
db699a8a | 28 | for (j = common; j; j = j->next) |
5c1753b1 JK |
29 | argv_array_push(&args, merge_argument(j->item)); |
30 | argv_array_push(&args, "--"); | |
31 | argv_array_push(&args, head_arg); | |
db699a8a | 32 | for (j = remotes; j; j = j->next) |
5c1753b1 JK |
33 | argv_array_push(&args, merge_argument(j->item)); |
34 | ||
35 | ret = run_command_v_opt(args.argv, RUN_GIT_CMD); | |
36 | argv_array_clear(&args); | |
37 | ||
db699a8a NTND |
38 | discard_cache(); |
39 | if (read_cache() < 0) | |
40 | die(_("failed to read the cache")); | |
41 | resolve_undo_clear(); | |
42 | ||
43 | return ret; | |
44 | } | |
45 | ||
46 | int checkout_fast_forward(const unsigned char *head, | |
47 | const unsigned char *remote, | |
48 | int overwrite_ignore) | |
49 | { | |
50 | struct tree *trees[MAX_UNPACK_TREES]; | |
51 | struct unpack_trees_options opts; | |
52 | struct tree_desc t[MAX_UNPACK_TREES]; | |
03b86647 | 53 | int i, nr_trees = 0; |
db699a8a NTND |
54 | struct dir_struct dir; |
55 | struct lock_file *lock_file = xcalloc(1, sizeof(struct lock_file)); | |
56 | ||
57 | refresh_cache(REFRESH_QUIET); | |
58 | ||
03b86647 | 59 | hold_locked_index(lock_file, 1); |
db699a8a NTND |
60 | |
61 | memset(&trees, 0, sizeof(trees)); | |
62 | memset(&opts, 0, sizeof(opts)); | |
63 | memset(&t, 0, sizeof(t)); | |
64 | if (overwrite_ignore) { | |
65 | memset(&dir, 0, sizeof(dir)); | |
66 | dir.flags |= DIR_SHOW_IGNORED; | |
67 | setup_standard_excludes(&dir); | |
68 | opts.dir = &dir; | |
69 | } | |
70 | ||
71 | opts.head_idx = 1; | |
72 | opts.src_index = &the_index; | |
73 | opts.dst_index = &the_index; | |
74 | opts.update = 1; | |
75 | opts.verbose_update = 1; | |
76 | opts.merge = 1; | |
77 | opts.fn = twoway_merge; | |
78 | setup_unpack_trees_porcelain(&opts, "merge"); | |
79 | ||
80 | trees[nr_trees] = parse_tree_indirect(head); | |
81 | if (!trees[nr_trees++]) | |
82 | return -1; | |
83 | trees[nr_trees] = parse_tree_indirect(remote); | |
84 | if (!trees[nr_trees++]) | |
85 | return -1; | |
86 | for (i = 0; i < nr_trees; i++) { | |
87 | parse_tree(trees[i]); | |
88 | init_tree_desc(t+i, trees[i]->buffer, trees[i]->size); | |
89 | } | |
90 | if (unpack_trees(nr_trees, t, &opts)) | |
91 | return -1; | |
03b86647 | 92 | if (write_locked_index(&the_index, lock_file, COMMIT_LOCK)) |
db699a8a NTND |
93 | die(_("unable to write new index file")); |
94 | return 0; | |
95 | } |