Code

contrib/git-svn: use refs/remotes/git-svn instead of git-svn-HEAD
[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"
9 static void hash_object(const char *path, const char *type, int write_object)
10 {
11         int fd;
12         struct stat st;
13         unsigned char sha1[20];
14         fd = open(path, O_RDONLY);
15         if (fd < 0 ||
16             fstat(fd, &st) < 0 ||
17             index_fd(sha1, fd, &st, write_object, type))
18                 die(write_object
19                     ? "Unable to add %s to database"
20                     : "Unable to hash %s", path);
21         printf("%s\n", sha1_to_hex(sha1));
22 }
24 static void hash_stdin(const char *type, int write_object)
25 {
26         unsigned char sha1[20];
27         if (index_pipe(sha1, 0, type, write_object))
28                 die("Unable to add stdin to database");
29         printf("%s\n", sha1_to_hex(sha1));
30 }
32 static const char hash_object_usage[] =
33 "git-hash-object [-t <type>] [-w] [--stdin] <file>...";
35 int main(int argc, char **argv)
36 {
37         int i;
38         const char *type = "blob";
39         int write_object = 0;
40         const char *prefix = NULL;
41         int prefix_length = -1;
42         int no_more_flags = 0;
44         for (i = 1 ; i < argc; i++) {
45                 if (!no_more_flags && argv[i][0] == '-') {
46                         if (!strcmp(argv[i], "-t")) {
47                                 if (argc <= ++i)
48                                         die(hash_object_usage);
49                                 type = argv[i];
50                         }
51                         else if (!strcmp(argv[i], "-w")) {
52                                 if (prefix_length < 0) {
53                                         prefix = setup_git_directory();
54                                         prefix_length =
55                                                 prefix ? strlen(prefix) : 0;
56                                 }
57                                 write_object = 1;
58                         }
59                         else if (!strcmp(argv[i], "--")) {
60                                 no_more_flags = 1;
61                         }
62                         else if (!strcmp(argv[i], "--help"))
63                                 usage(hash_object_usage);
64                         else if (!strcmp(argv[i], "--stdin")) {
65                                 hash_stdin(type, write_object);
66                         }
67                         else
68                                 die(hash_object_usage);
69                 } 
70                 else {
71                         const char *arg = argv[i];
72                         if (0 <= prefix_length)
73                                 arg = prefix_filename(prefix, prefix_length,
74                                                       arg);
75                         hash_object(arg, type, write_object);
76                         no_more_flags = 1;
77                 }
78         }
79         return 0;
80 }