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[] = {
66 "git mktree [-z] [--missing] [--batch]",
70 static void mktree_line(char *buf, size_t len, int line_termination, int allow_missing)
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))
98 type = sha1_object_info(sha1, NULL);
100 type = object_type(mode);
103 die("object %s unavailable", sha1_to_hex(sha1));
105 *ntr++ = 0; /* now at the beginning of SHA1 */
106 if (type != type_from_string(ptr))
107 die("object type %s mismatch (%s)", ptr, typename(type));
109 path = ntr + 41; /* at the beginning of name */
110 if (line_termination && path[0] == '"') {
111 struct strbuf p_uq = STRBUF_INIT;
112 if (unquote_c_style(&p_uq, path, NULL))
113 die("invalid quoting");
114 path = strbuf_detach(&p_uq, NULL);
116 append_to_tree(mode, sha1, path);
119 int cmd_mktree(int ac, const char **av, const char *prefix)
121 struct strbuf sb = STRBUF_INIT;
122 unsigned char sha1[20];
123 int line_termination = '\n';
124 int allow_missing = 0;
125 int is_batch_mode = 0;
128 const struct option option[] = {
129 OPT_SET_INT('z', NULL, &line_termination, "input is NUL terminated", '\0'),
130 OPT_SET_INT( 0 , "missing", &allow_missing, "allow missing objects", 1),
131 OPT_SET_INT( 0 , "batch", &is_batch_mode, "allow creation of more than one tree", 1),
135 ac = parse_options(ac, av, option, mktree_usage, 0);
139 if (strbuf_getline(&sb, stdin, line_termination) == EOF) {
143 if (sb.buf[0] == '\0') {
144 /* empty lines denote tree boundaries in batch mode */
147 die("input format error: (blank line only valid in batch mode)");
149 mktree_line(sb.buf, sb.len, line_termination, allow_missing);
151 if (is_batch_mode && got_eof && used < 1) {
153 * Execution gets here if the last tree entry is terminated with a
154 * new-line. The final new-line has been made optional to be
155 * consistent with the original non-batch behaviour of mktree.
157 ; /* skip creating an empty tree */
160 puts(sha1_to_hex(sha1));
163 used=0; /* reset tree entry buffer for re-use in batch mode */