2 * GIT - the stupid content tracker
4 * Copyright (c) Junio C Hamano, 2006, 2009
10 static struct treeent {
12 unsigned char sha1[20];
14 char name[FLEX_ARRAY];
16 static int alloc, used;
18 static void append_to_tree(unsigned mode, unsigned char *sha1, char *path)
21 int len = strlen(path);
22 if (strchr(path, '/'))
23 die("path %s contains slash", path);
26 alloc = alloc_nr(used);
27 entries = xrealloc(entries, sizeof(*entries) * alloc);
29 ent = entries[used++] = xmalloc(sizeof(**entries) + len + 1);
32 hashcpy(ent->sha1, sha1);
33 memcpy(ent->name, path, len+1);
36 static int ent_compare(const void *a_, const void *b_)
38 struct treeent *a = *(struct treeent **)a_;
39 struct treeent *b = *(struct treeent **)b_;
40 return base_name_compare(a->name, a->len, a->mode,
41 b->name, b->len, b->mode);
44 static void write_tree(unsigned char *sha1)
50 qsort(entries, used, sizeof(*entries), ent_compare);
51 for (size = i = 0; i < used; i++)
52 size += 32 + entries[i]->len;
54 strbuf_init(&buf, size);
55 for (i = 0; i < used; i++) {
56 struct treeent *ent = entries[i];
57 strbuf_addf(&buf, "%o %s%c", ent->mode, ent->name, '\0');
58 strbuf_add(&buf, ent->sha1, 20);
61 write_sha1_file(buf.buf, buf.len, tree_type, sha1);
64 static const char mktree_usage[] = "git mktree [-z]";
66 int cmd_mktree(int ac, const char **av, const char *prefix)
68 struct strbuf sb = STRBUF_INIT;
69 struct strbuf p_uq = STRBUF_INIT;
70 unsigned char sha1[20];
71 int line_termination = '\n';
73 while ((1 < ac) && av[1][0] == '-') {
74 const char *arg = av[1];
75 if (!strcmp("-z", arg))
83 while (strbuf_getline(&sb, stdin, line_termination) != EOF) {
86 enum object_type type;
91 * Read non-recursive ls-tree output format:
92 * mode SP type SP sha1 TAB name
94 mode = strtoul(ptr, &ntr, 8);
95 if (ptr == ntr || !ntr || *ntr != ' ')
96 die("input format error: %s", sb.buf);
97 ptr = ntr + 1; /* type */
98 ntr = strchr(ptr, ' ');
99 if (!ntr || sb.buf + sb.len <= ntr + 40 ||
101 get_sha1_hex(ntr + 1, sha1))
102 die("input format error: %s", sb.buf);
103 type = sha1_object_info(sha1, NULL);
105 die("object %s unavailable", sha1_to_hex(sha1));
106 *ntr++ = 0; /* now at the beginning of SHA1 */
107 if (type != type_from_string(ptr))
108 die("object type %s mismatch (%s)", ptr, typename(type));
110 path = ntr + 41; /* at the beginning of name */
111 if (line_termination && path[0] == '"') {
113 if (unquote_c_style(&p_uq, path, NULL)) {
114 die("invalid quoting");
119 append_to_tree(mode, sha1, path);
121 strbuf_release(&p_uq);
125 puts(sha1_to_hex(sha1));