2 * GIT - the stupid content tracker
4 * Copyright (c) Junio C Hamano, 2006, 2009
9 #include "parse-options.h"
11 static struct treeent {
13 unsigned char sha1[20];
15 char name[FLEX_ARRAY];
17 static int alloc, used;
19 static void append_to_tree(unsigned mode, unsigned char *sha1, char *path)
22 int len = strlen(path);
23 if (strchr(path, '/'))
24 die("path %s contains slash", path);
27 alloc = alloc_nr(used);
28 entries = xrealloc(entries, sizeof(*entries) * alloc);
30 ent = entries[used++] = xmalloc(sizeof(**entries) + len + 1);
33 hashcpy(ent->sha1, sha1);
34 memcpy(ent->name, path, len+1);
37 static int ent_compare(const void *a_, const void *b_)
39 struct treeent *a = *(struct treeent **)a_;
40 struct treeent *b = *(struct treeent **)b_;
41 return base_name_compare(a->name, a->len, a->mode,
42 b->name, b->len, b->mode);
45 static void write_tree(unsigned char *sha1)
51 qsort(entries, used, sizeof(*entries), ent_compare);
52 for (size = i = 0; i < used; i++)
53 size += 32 + entries[i]->len;
55 strbuf_init(&buf, size);
56 for (i = 0; i < used; i++) {
57 struct treeent *ent = entries[i];
58 strbuf_addf(&buf, "%o %s%c", ent->mode, ent->name, '\0');
59 strbuf_add(&buf, ent->sha1, 20);
62 write_sha1_file(buf.buf, buf.len, tree_type, sha1);
65 static const char *mktree_usage[] = {
70 static void mktree_line(char *buf, size_t len, int line_termination)
74 enum object_type type;
76 unsigned char sha1[20];
80 * Read non-recursive ls-tree output format:
81 * mode SP type SP sha1 TAB name
83 mode = strtoul(ptr, &ntr, 8);
84 if (ptr == ntr || !ntr || *ntr != ' ')
85 die("input format error: %s", buf);
86 ptr = ntr + 1; /* type */
87 ntr = strchr(ptr, ' ');
88 if (!ntr || buf + len <= ntr + 40 ||
90 get_sha1_hex(ntr + 1, sha1))
91 die("input format error: %s", buf);
93 /* It is perfectly normal if we do not have a commit from a submodule */
94 if (!S_ISGITLINK(mode))
95 type = sha1_object_info(sha1, NULL);
100 die("object %s unavailable", sha1_to_hex(sha1));
102 *ntr++ = 0; /* now at the beginning of SHA1 */
103 if (type != type_from_string(ptr))
104 die("object type %s mismatch (%s)", ptr, typename(type));
106 path = ntr + 41; /* at the beginning of name */
107 if (line_termination && path[0] == '"') {
108 struct strbuf p_uq = STRBUF_INIT;
109 if (unquote_c_style(&p_uq, path, NULL))
110 die("invalid quoting");
111 path = strbuf_detach(&p_uq, NULL);
113 append_to_tree(mode, sha1, path);
116 int cmd_mktree(int ac, const char **av, const char *prefix)
118 struct strbuf sb = STRBUF_INIT;
119 unsigned char sha1[20];
120 int line_termination = '\n';
121 const struct option option[] = {
122 OPT_SET_INT('z', NULL, &line_termination, "input is NUL terminated", '\0'),
126 ac = parse_options(ac, av, option, mktree_usage, 0);
128 while (strbuf_getline(&sb, stdin, line_termination) != EOF)
129 mktree_line(sb.buf, sb.len, line_termination);
134 puts(sha1_to_hex(sha1));