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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" |
83f50539 JH |
9 | |
10 | static struct treeent { | |
11 | unsigned mode; | |
12 | unsigned char sha1[20]; | |
13 | int len; | |
14 | char name[FLEX_ARRAY]; | |
15 | } **entries; | |
16 | static int alloc, used; | |
17 | ||
18 | static void append_to_tree(unsigned mode, unsigned char *sha1, char *path) | |
19 | { | |
20 | struct treeent *ent; | |
21 | int len = strlen(path); | |
22 | if (strchr(path, '/')) | |
23 | die("path %s contains slash", path); | |
24 | ||
25 | if (alloc <= used) { | |
26 | alloc = alloc_nr(used); | |
27 | entries = xrealloc(entries, sizeof(*entries) * alloc); | |
28 | } | |
29 | ent = entries[used++] = xmalloc(sizeof(**entries) + len + 1); | |
30 | ent->mode = mode; | |
31 | ent->len = len; | |
e702496e | 32 | hashcpy(ent->sha1, sha1); |
83f50539 JH |
33 | memcpy(ent->name, path, len+1); |
34 | } | |
35 | ||
36 | static int ent_compare(const void *a_, const void *b_) | |
37 | { | |
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); | |
42 | } | |
43 | ||
44 | static void write_tree(unsigned char *sha1) | |
45 | { | |
d52bc661 PH |
46 | struct strbuf buf; |
47 | size_t size; | |
83f50539 JH |
48 | int i; |
49 | ||
50 | qsort(entries, used, sizeof(*entries), ent_compare); | |
83f50539 JH |
51 | for (size = i = 0; i < used; i++) |
52 | size += 32 + entries[i]->len; | |
83f50539 | 53 | |
f1696ee3 | 54 | strbuf_init(&buf, size); |
83f50539 JH |
55 | for (i = 0; i < used; i++) { |
56 | struct treeent *ent = entries[i]; | |
d52bc661 PH |
57 | strbuf_addf(&buf, "%o %s%c", ent->mode, ent->name, '\0'); |
58 | strbuf_add(&buf, ent->sha1, 20); | |
83f50539 | 59 | } |
d52bc661 PH |
60 | |
61 | write_sha1_file(buf.buf, buf.len, tree_type, sha1); | |
83f50539 JH |
62 | } |
63 | ||
15e593e4 | 64 | static const char mktree_usage[] = "git-mktree [-z]"; |
83f50539 JH |
65 | |
66 | int main(int ac, char **av) | |
67 | { | |
68 | struct strbuf sb; | |
7fb1011e | 69 | struct strbuf p_uq; |
83f50539 JH |
70 | unsigned char sha1[20]; |
71 | int line_termination = '\n'; | |
72 | ||
73 | setup_git_directory(); | |
74 | ||
75 | while ((1 < ac) && av[1][0] == '-') { | |
76 | char *arg = av[1]; | |
77 | if (!strcmp("-z", arg)) | |
78 | line_termination = 0; | |
79 | else | |
80 | usage(mktree_usage); | |
81 | ac--; | |
82 | av++; | |
83 | } | |
84 | ||
f1696ee3 | 85 | strbuf_init(&sb, 0); |
7fb1011e PH |
86 | strbuf_init(&p_uq, 0); |
87 | while (strbuf_getline(&sb, stdin, line_termination) != EOF) { | |
83f50539 JH |
88 | char *ptr, *ntr; |
89 | unsigned mode; | |
21666f1a | 90 | enum object_type type; |
83f50539 JH |
91 | char *path; |
92 | ||
83f50539 JH |
93 | ptr = sb.buf; |
94 | /* Input is non-recursive ls-tree output format | |
95 | * mode SP type SP sha1 TAB name | |
96 | */ | |
97 | mode = strtoul(ptr, &ntr, 8); | |
98 | if (ptr == ntr || !ntr || *ntr != ' ') | |
99 | die("input format error: %s", sb.buf); | |
100 | ptr = ntr + 1; /* type */ | |
101 | ntr = strchr(ptr, ' '); | |
b449f4cf | 102 | if (!ntr || sb.buf + sb.len <= ntr + 40 || |
83f50539 JH |
103 | ntr[41] != '\t' || |
104 | get_sha1_hex(ntr + 1, sha1)) | |
105 | die("input format error: %s", sb.buf); | |
21666f1a NP |
106 | type = sha1_object_info(sha1, NULL); |
107 | if (type < 0) | |
83f50539 JH |
108 | die("object %s unavailable", sha1_to_hex(sha1)); |
109 | *ntr++ = 0; /* now at the beginning of SHA1 */ | |
21666f1a NP |
110 | if (type != type_from_string(ptr)) |
111 | die("object type %s mismatch (%s)", ptr, typename(type)); | |
83f50539 | 112 | |
7fb1011e PH |
113 | path = ntr + 41; /* at the beginning of name */ |
114 | if (line_termination && path[0] == '"') { | |
115 | strbuf_reset(&p_uq); | |
116 | if (unquote_c_style(&p_uq, path, NULL)) { | |
117 | die("invalid quoting"); | |
118 | } | |
119 | path = p_uq.buf; | |
120 | } | |
83f50539 | 121 | |
7fb1011e | 122 | append_to_tree(mode, sha1, path); |
83f50539 | 123 | } |
7fb1011e | 124 | strbuf_release(&p_uq); |
e6c019d0 | 125 | strbuf_release(&sb); |
7fb1011e | 126 | |
83f50539 JH |
127 | write_tree(sha1); |
128 | puts(sha1_to_hex(sha1)); | |
129 | exit(0); | |
130 | } |