7 #include "run-command.h"
9 static int add_submodule_odb(const char *path)
11 struct strbuf objects_directory = STRBUF_INIT;
12 struct alternate_object_database *alt_odb;
14 strbuf_addf(&objects_directory, "%s/.git/objects/", path);
15 if (!is_directory(objects_directory.buf))
18 /* avoid adding it twice */
19 for (alt_odb = alt_odb_list; alt_odb; alt_odb = alt_odb->next)
20 if (alt_odb->name - alt_odb->base == objects_directory.len &&
21 !strncmp(alt_odb->base, objects_directory.buf,
22 objects_directory.len))
25 alt_odb = xmalloc(objects_directory.len + 42 + sizeof(*alt_odb));
26 alt_odb->next = alt_odb_list;
27 strcpy(alt_odb->base, objects_directory.buf);
28 alt_odb->name = alt_odb->base + objects_directory.len;
29 alt_odb->name[2] = '/';
30 alt_odb->name[40] = '\0';
31 alt_odb->name[41] = '\0';
32 alt_odb_list = alt_odb;
37 void show_submodule_summary(FILE *f, const char *path,
38 unsigned char one[20], unsigned char two[20],
39 const char *del, const char *add, const char *reset)
42 struct commit *commit, *left = left, *right = right;
43 struct commit_list *merge_bases, *list;
44 const char *message = NULL;
45 struct strbuf sb = STRBUF_INIT;
46 static const char *format = " %m %s";
47 int fast_forward = 0, fast_backward = 0;
49 if (is_null_sha1(two))
50 message = "(submodule deleted)";
51 else if (add_submodule_odb(path))
52 message = "(not checked out)";
53 else if (is_null_sha1(one))
54 message = "(new submodule)";
55 else if (!(left = lookup_commit_reference(one)) ||
56 !(right = lookup_commit_reference(two)))
57 message = "(commits not present)";
60 init_revisions(&rev, NULL);
61 setup_revisions(0, NULL, &rev, NULL);
63 rev.first_parent_only = 1;
64 left->object.flags |= SYMMETRIC_LEFT;
65 add_pending_object(&rev, &left->object, path);
66 add_pending_object(&rev, &right->object, path);
67 merge_bases = get_merge_bases(left, right, 1);
69 if (merge_bases->item == left)
71 else if (merge_bases->item == right)
74 for (list = merge_bases; list; list = list->next) {
75 list->item->object.flags |= UNINTERESTING;
76 add_pending_object(&rev, &list->item->object,
77 sha1_to_hex(list->item->object.sha1));
79 if (prepare_revision_walk(&rev))
80 message = "(revision walker failed)";
83 strbuf_addf(&sb, "Submodule %s %s..", path,
84 find_unique_abbrev(one, DEFAULT_ABBREV));
85 if (!fast_backward && !fast_forward)
86 strbuf_addch(&sb, '.');
87 strbuf_addf(&sb, "%s", find_unique_abbrev(two, DEFAULT_ABBREV));
89 strbuf_addf(&sb, " %s\n", message);
91 strbuf_addf(&sb, "%s:\n", fast_backward ? " (rewind)" : "");
92 fwrite(sb.buf, sb.len, 1, f);
95 while ((commit = get_revision(&rev))) {
96 struct pretty_print_context ctx = {0};
97 ctx.date_mode = rev.date_mode;
98 strbuf_setlen(&sb, 0);
99 if (commit->object.flags & SYMMETRIC_LEFT) {
101 strbuf_addstr(&sb, del);
104 strbuf_addstr(&sb, add);
105 format_commit_message(commit, format, &sb, &ctx);
107 strbuf_addstr(&sb, reset);
108 strbuf_addch(&sb, '\n');
109 fprintf(f, "%s", sb.buf);
111 clear_commit_marks(left, ~0);
112 clear_commit_marks(right, ~0);
117 int is_submodule_modified(const char *path)
120 struct child_process cp;
121 const char *argv[] = {
127 struct strbuf buf = STRBUF_INIT;
129 strbuf_addf(&buf, "%s/.git/", path);
130 if (!is_directory(buf.buf)) {
131 strbuf_release(&buf);
132 /* The submodule is not checked out, so it is not modified */
138 strbuf_addf(&buf, "GIT_WORK_TREE=%s", path);
139 env[0] = strbuf_detach(&buf, NULL);
140 strbuf_addf(&buf, "GIT_DIR=%s/.git", path);
141 env[1] = strbuf_detach(&buf, NULL);
144 memset(&cp, 0, sizeof(cp));
146 cp.env = (const char *const *)env;
150 if (start_command(&cp))
151 die("Could not run git status --porcelain");
153 len = strbuf_read(&buf, cp.out, 1024);
156 if (finish_command(&cp))
157 die("git status --porcelain failed");
161 strbuf_release(&buf);