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Commit | Line | Data |
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83f50539 JH |
1 | /* |
2 | * GIT - the stupid content tracker | |
3 | * | |
4 | * Copyright (c) Junio C Hamano, 2006 | |
5 | */ | |
6 | #include "cache.h" | |
83f50539 | 7 | #include "quote.h" |
8e440259 | 8 | #include "tree.h" |
2fb3f6db | 9 | #include "exec_cmd.h" |
83f50539 JH |
10 | |
11 | static struct treeent { | |
12 | unsigned mode; | |
13 | unsigned char sha1[20]; | |
14 | int len; | |
15 | char name[FLEX_ARRAY]; | |
16 | } **entries; | |
17 | static int alloc, used; | |
18 | ||
19 | static void append_to_tree(unsigned mode, unsigned char *sha1, char *path) | |
20 | { | |
21 | struct treeent *ent; | |
22 | int len = strlen(path); | |
23 | if (strchr(path, '/')) | |
24 | die("path %s contains slash", path); | |
25 | ||
26 | if (alloc <= used) { | |
27 | alloc = alloc_nr(used); | |
28 | entries = xrealloc(entries, sizeof(*entries) * alloc); | |
29 | } | |
30 | ent = entries[used++] = xmalloc(sizeof(**entries) + len + 1); | |
31 | ent->mode = mode; | |
32 | ent->len = len; | |
e702496e | 33 | hashcpy(ent->sha1, sha1); |
83f50539 JH |
34 | memcpy(ent->name, path, len+1); |
35 | } | |
36 | ||
37 | static int ent_compare(const void *a_, const void *b_) | |
38 | { | |
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); | |
43 | } | |
44 | ||
45 | static void write_tree(unsigned char *sha1) | |
46 | { | |
d52bc661 PH |
47 | struct strbuf buf; |
48 | size_t size; | |
83f50539 JH |
49 | int i; |
50 | ||
51 | qsort(entries, used, sizeof(*entries), ent_compare); | |
83f50539 JH |
52 | for (size = i = 0; i < used; i++) |
53 | size += 32 + entries[i]->len; | |
83f50539 | 54 | |
f1696ee3 | 55 | strbuf_init(&buf, size); |
83f50539 JH |
56 | for (i = 0; i < used; i++) { |
57 | struct treeent *ent = entries[i]; | |
d52bc661 PH |
58 | strbuf_addf(&buf, "%o %s%c", ent->mode, ent->name, '\0'); |
59 | strbuf_add(&buf, ent->sha1, 20); | |
83f50539 | 60 | } |
d52bc661 PH |
61 | |
62 | write_sha1_file(buf.buf, buf.len, tree_type, sha1); | |
83f50539 JH |
63 | } |
64 | ||
34263de0 | 65 | static const char mktree_usage[] = "git mktree [-z]"; |
83f50539 JH |
66 | |
67 | int main(int ac, char **av) | |
68 | { | |
f285a2d7 BC |
69 | struct strbuf sb = STRBUF_INIT; |
70 | struct strbuf p_uq = STRBUF_INIT; | |
83f50539 JH |
71 | unsigned char sha1[20]; |
72 | int line_termination = '\n'; | |
73 | ||
2fb3f6db SP |
74 | git_extract_argv0_path(av[0]); |
75 | ||
83f50539 JH |
76 | setup_git_directory(); |
77 | ||
78 | while ((1 < ac) && av[1][0] == '-') { | |
79 | char *arg = av[1]; | |
80 | if (!strcmp("-z", arg)) | |
81 | line_termination = 0; | |
82 | else | |
83 | usage(mktree_usage); | |
84 | ac--; | |
85 | av++; | |
86 | } | |
87 | ||
7fb1011e | 88 | while (strbuf_getline(&sb, stdin, line_termination) != EOF) { |
83f50539 JH |
89 | char *ptr, *ntr; |
90 | unsigned mode; | |
21666f1a | 91 | enum object_type type; |
83f50539 JH |
92 | char *path; |
93 | ||
83f50539 JH |
94 | ptr = sb.buf; |
95 | /* Input is non-recursive ls-tree output format | |
96 | * mode SP type SP sha1 TAB name | |
97 | */ | |
98 | mode = strtoul(ptr, &ntr, 8); | |
99 | if (ptr == ntr || !ntr || *ntr != ' ') | |
100 | die("input format error: %s", sb.buf); | |
101 | ptr = ntr + 1; /* type */ | |
102 | ntr = strchr(ptr, ' '); | |
b449f4cf | 103 | if (!ntr || sb.buf + sb.len <= ntr + 40 || |
83f50539 JH |
104 | ntr[41] != '\t' || |
105 | get_sha1_hex(ntr + 1, sha1)) | |
106 | die("input format error: %s", sb.buf); | |
21666f1a NP |
107 | type = sha1_object_info(sha1, NULL); |
108 | if (type < 0) | |
83f50539 JH |
109 | die("object %s unavailable", sha1_to_hex(sha1)); |
110 | *ntr++ = 0; /* now at the beginning of SHA1 */ | |
21666f1a NP |
111 | if (type != type_from_string(ptr)) |
112 | die("object type %s mismatch (%s)", ptr, typename(type)); | |
83f50539 | 113 | |
7fb1011e PH |
114 | path = ntr + 41; /* at the beginning of name */ |
115 | if (line_termination && path[0] == '"') { | |
116 | strbuf_reset(&p_uq); | |
117 | if (unquote_c_style(&p_uq, path, NULL)) { | |
118 | die("invalid quoting"); | |
119 | } | |
120 | path = p_uq.buf; | |
121 | } | |
83f50539 | 122 | |
7fb1011e | 123 | append_to_tree(mode, sha1, path); |
83f50539 | 124 | } |
7fb1011e | 125 | strbuf_release(&p_uq); |
e6c019d0 | 126 | strbuf_release(&sb); |
7fb1011e | 127 | |
83f50539 JH |
128 | write_tree(sha1); |
129 | puts(sha1_to_hex(sha1)); | |
130 | exit(0); | |
131 | } |