Provide git_config with a callback-data parameter
[git/git.git] / hash-object.c
1 /*
2 * GIT - The information manager from hell
3 *
4 * Copyright (C) Linus Torvalds, 2005
5 * Copyright (C) Junio C Hamano, 2005
6 */
7 #include "cache.h"
8 #include "blob.h"
9
10 static void hash_object(const char *path, enum object_type type, int write_object)
11 {
12 int fd;
13 struct stat st;
14 unsigned char sha1[20];
15 fd = open(path, O_RDONLY);
16 if (fd < 0 ||
17 fstat(fd, &st) < 0 ||
18 index_fd(sha1, fd, &st, write_object, type, path))
19 die(write_object
20 ? "Unable to add %s to database"
21 : "Unable to hash %s", path);
22 printf("%s\n", sha1_to_hex(sha1));
23 }
24
25 static void hash_stdin(const char *type, int write_object)
26 {
27 unsigned char sha1[20];
28 if (index_pipe(sha1, 0, type, write_object))
29 die("Unable to add stdin to database");
30 printf("%s\n", sha1_to_hex(sha1));
31 }
32
33 static const char hash_object_usage[] =
34 "git-hash-object [-t <type>] [-w] [--stdin] <file>...";
35
36 int main(int argc, char **argv)
37 {
38 int i;
39 const char *type = blob_type;
40 int write_object = 0;
41 const char *prefix = NULL;
42 int prefix_length = -1;
43 int no_more_flags = 0;
44 int hashstdin = 0;
45
46 git_config(git_default_config, NULL);
47
48 for (i = 1 ; i < argc; i++) {
49 if (!no_more_flags && argv[i][0] == '-') {
50 if (!strcmp(argv[i], "-t")) {
51 if (argc <= ++i)
52 usage(hash_object_usage);
53 type = argv[i];
54 }
55 else if (!strcmp(argv[i], "-w")) {
56 if (prefix_length < 0) {
57 prefix = setup_git_directory();
58 prefix_length =
59 prefix ? strlen(prefix) : 0;
60 }
61 write_object = 1;
62 }
63 else if (!strcmp(argv[i], "--")) {
64 no_more_flags = 1;
65 }
66 else if (!strcmp(argv[i], "--help"))
67 usage(hash_object_usage);
68 else if (!strcmp(argv[i], "--stdin")) {
69 if (hashstdin)
70 die("Multiple --stdin arguments are not supported");
71 hashstdin = 1;
72 }
73 else
74 usage(hash_object_usage);
75 }
76 else {
77 const char *arg = argv[i];
78
79 if (hashstdin) {
80 hash_stdin(type, write_object);
81 hashstdin = 0;
82 }
83 if (0 <= prefix_length)
84 arg = prefix_filename(prefix, prefix_length,
85 arg);
86 hash_object(arg, type_from_string(type), write_object);
87 no_more_flags = 1;
88 }
89 }
90 if (hashstdin)
91 hash_stdin(type, write_object);
92 return 0;
93 }