2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
5 * Copyright (C) Junio C Hamano, 2005
10 #include "parse-options.h"
13 static void hash_fd(int fd
, const char *type
, const char *path
, unsigned flags
)
16 unsigned char sha1
[20];
18 if (fstat(fd
, &st
) < 0 ||
19 index_fd(sha1
, fd
, &st
, type_from_string(type
), path
, flags
))
20 die((flags
& HASH_WRITE_OBJECT
)
21 ? "Unable to add %s to database"
22 : "Unable to hash %s", path
);
23 printf("%s\n", sha1_to_hex(sha1
));
24 maybe_flush_or_die(stdout
, "hash to stdout");
27 static void hash_object(const char *path
, const char *type
, const char *vpath
,
31 fd
= open(path
, O_RDONLY
);
33 die_errno("Cannot open '%s'", path
);
34 hash_fd(fd
, type
, vpath
, flags
);
37 static void hash_stdin_paths(const char *type
, int no_filters
, unsigned flags
)
39 struct strbuf buf
= STRBUF_INIT
, nbuf
= STRBUF_INIT
;
41 while (strbuf_getline(&buf
, stdin
, '\n') != EOF
) {
42 if (buf
.buf
[0] == '"') {
44 if (unquote_c_style(&nbuf
, buf
.buf
, NULL
))
45 die("line is badly quoted");
46 strbuf_swap(&buf
, &nbuf
);
48 hash_object(buf
.buf
, type
, no_filters
? NULL
: buf
.buf
, flags
);
51 strbuf_release(&nbuf
);
54 int cmd_hash_object(int argc
, const char **argv
, const char *prefix
)
56 static const char * const hash_object_usage
[] = {
57 N_("git hash-object [-t <type>] [-w] [--path=<file>|--no-filters] [--stdin] [--] <file>..."),
58 N_("git hash-object --stdin-paths < <list-of-paths>"),
61 const char *type
= blob_type
;
65 unsigned flags
= HASH_FORMAT_CHECK
;
66 const char *vpath
= NULL
;
67 const struct option hash_object_options
[] = {
68 OPT_STRING('t', NULL
, &type
, N_("type"), N_("object type")),
69 OPT_BIT('w', NULL
, &flags
, N_("write the object into the object database"),
71 OPT_COUNTUP( 0 , "stdin", &hashstdin
, N_("read the object from stdin")),
72 OPT_BOOL( 0 , "stdin-paths", &stdin_paths
, N_("read file names from stdin")),
73 OPT_BOOL( 0 , "no-filters", &no_filters
, N_("store file as is without filters")),
74 OPT_STRING( 0 , "path", &vpath
, N_("file"), N_("process file as it were from this path")),
78 int prefix_length
= -1;
79 const char *errstr
= NULL
;
81 argc
= parse_options(argc
, argv
, NULL
, hash_object_options
,
82 hash_object_usage
, 0);
84 if (flags
& HASH_WRITE_OBJECT
) {
85 prefix
= setup_git_directory();
86 prefix_length
= prefix
? strlen(prefix
) : 0;
88 vpath
= prefix_filename(prefix
, prefix_length
, vpath
);
91 git_config(git_default_config
, NULL
);
95 errstr
= "Can't use --stdin-paths with --stdin";
97 errstr
= "Can't specify files with --stdin-paths";
99 errstr
= "Can't use --stdin-paths with --path";
103 errstr
= "Multiple --stdin arguments are not supported";
104 if (vpath
&& no_filters
)
105 errstr
= "Can't use --path with --no-filters";
110 usage_with_options(hash_object_usage
, hash_object_options
);
114 hash_fd(0, type
, vpath
, flags
);
116 for (i
= 0 ; i
< argc
; i
++) {
117 const char *arg
= argv
[i
];
119 if (0 <= prefix_length
)
120 arg
= prefix_filename(prefix
, prefix_length
, arg
);
121 hash_object(arg
, type
, no_filters
? NULL
: vpath
? vpath
: arg
,
126 hash_stdin_paths(type
, no_filters
, flags
);