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Commit | Line | Data |
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752c0c24 JS |
1 | #include "cache.h" |
2 | #include "submodule.h" | |
3 | #include "dir.h" | |
4 | #include "diff.h" | |
5 | #include "commit.h" | |
6 | #include "revision.h" | |
7 | ||
8 | int add_submodule_odb(const char *path) | |
9 | { | |
10 | struct strbuf objects_directory = STRBUF_INIT; | |
11 | struct alternate_object_database *alt_odb; | |
12 | ||
13 | strbuf_addf(&objects_directory, "%s/.git/objects/", path); | |
14 | if (!is_directory(objects_directory.buf)) | |
15 | return -1; | |
16 | ||
17 | /* avoid adding it twice */ | |
18 | for (alt_odb = alt_odb_list; alt_odb; alt_odb = alt_odb->next) | |
19 | if (alt_odb->name - alt_odb->base == objects_directory.len && | |
20 | !strncmp(alt_odb->base, objects_directory.buf, | |
21 | objects_directory.len)) | |
22 | return 0; | |
23 | ||
24 | alt_odb = xmalloc(objects_directory.len + 42 + sizeof(*alt_odb)); | |
25 | alt_odb->next = alt_odb_list; | |
26 | strcpy(alt_odb->base, objects_directory.buf); | |
27 | alt_odb->name = alt_odb->base + objects_directory.len; | |
28 | alt_odb->name[2] = '/'; | |
29 | alt_odb->name[40] = '\0'; | |
30 | alt_odb->name[41] = '\0'; | |
31 | alt_odb_list = alt_odb; | |
32 | prepare_alt_odb(); | |
33 | return 0; | |
34 | } | |
35 | ||
36 | void show_submodule_summary(FILE *f, const char *path, | |
37 | unsigned char one[20], unsigned char two[20], | |
38 | const char *del, const char *add, const char *reset) | |
39 | { | |
40 | struct rev_info rev; | |
41 | struct commit *commit, *left = left, *right; | |
42 | struct commit_list *merge_bases, *list; | |
43 | const char *message = NULL; | |
44 | struct strbuf sb = STRBUF_INIT; | |
45 | static const char *format = " %m %s"; | |
46 | int fast_forward = 0, fast_backward = 0; | |
47 | ||
48 | if (is_null_sha1(two)) | |
49 | message = "(submodule deleted)"; | |
50 | else if (add_submodule_odb(path)) | |
51 | message = "(not checked out)"; | |
52 | else if (is_null_sha1(one)) | |
53 | message = "(new submodule)"; | |
54 | else if (!(left = lookup_commit_reference(one)) || | |
55 | !(right = lookup_commit_reference(two))) | |
56 | message = "(commits not present)"; | |
57 | ||
58 | if (!message) { | |
59 | init_revisions(&rev, NULL); | |
60 | setup_revisions(0, NULL, &rev, NULL); | |
61 | rev.left_right = 1; | |
62 | rev.first_parent_only = 1; | |
63 | left->object.flags |= SYMMETRIC_LEFT; | |
64 | add_pending_object(&rev, &left->object, path); | |
65 | add_pending_object(&rev, &right->object, path); | |
66 | merge_bases = get_merge_bases(left, right, 1); | |
67 | if (merge_bases) { | |
68 | if (merge_bases->item == left) | |
69 | fast_forward = 1; | |
70 | else if (merge_bases->item == right) | |
71 | fast_backward = 1; | |
72 | } | |
73 | for (list = merge_bases; list; list = list->next) { | |
74 | list->item->object.flags |= UNINTERESTING; | |
75 | add_pending_object(&rev, &list->item->object, | |
76 | sha1_to_hex(list->item->object.sha1)); | |
77 | } | |
78 | if (prepare_revision_walk(&rev)) | |
79 | message = "(revision walker failed)"; | |
80 | } | |
81 | ||
82 | strbuf_addf(&sb, "Submodule %s %s..", path, | |
83 | find_unique_abbrev(one, DEFAULT_ABBREV)); | |
84 | if (!fast_backward && !fast_forward) | |
85 | strbuf_addch(&sb, '.'); | |
86 | strbuf_addf(&sb, "%s", find_unique_abbrev(two, DEFAULT_ABBREV)); | |
87 | if (message) | |
88 | strbuf_addf(&sb, " %s\n", message); | |
89 | else | |
90 | strbuf_addf(&sb, "%s:\n", fast_backward ? " (rewind)" : ""); | |
91 | fwrite(sb.buf, sb.len, 1, f); | |
92 | ||
93 | if (!message) { | |
94 | while ((commit = get_revision(&rev))) { | |
95 | strbuf_setlen(&sb, 0); | |
96 | if (commit->object.flags & SYMMETRIC_LEFT) { | |
97 | if (del) | |
98 | strbuf_addstr(&sb, del); | |
99 | } | |
100 | else if (add) | |
101 | strbuf_addstr(&sb, add); | |
102 | format_commit_message(commit, format, &sb, | |
103 | rev.date_mode); | |
104 | if (reset) | |
105 | strbuf_addstr(&sb, reset); | |
106 | strbuf_addch(&sb, '\n'); | |
107 | fprintf(f, "%s", sb.buf); | |
108 | } | |
109 | clear_commit_marks(left, ~0); | |
110 | clear_commit_marks(right, ~0); | |
111 | } | |
112 | strbuf_release(&sb); | |
113 | } |