l10n: bg.po: Updated Bulgarian translation (4875t)
[git/debian.git] / builtin / hash-object.c
blob640ef4ded595a3a21579a5630e04c3e6a412420d
1 /*
2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
5 * Copyright (C) Junio C Hamano, 2005
6 */
7 #include "builtin.h"
8 #include "config.h"
9 #include "object-store.h"
10 #include "blob.h"
11 #include "quote.h"
12 #include "parse-options.h"
13 #include "exec-cmd.h"
16 * This is to create corrupt objects for debugging and as such it
17 * needs to bypass the data conversion performed by, and the type
18 * limitation imposed by, index_fd() and its callees.
20 static int hash_literally(struct object_id *oid, int fd, const char *type, unsigned flags)
22 struct strbuf buf = STRBUF_INIT;
23 int ret;
25 if (strbuf_read(&buf, fd, 4096) < 0)
26 ret = -1;
27 else
28 ret = hash_object_file_literally(buf.buf, buf.len, type, oid,
29 flags);
30 strbuf_release(&buf);
31 return ret;
34 static void hash_fd(int fd, const char *type, const char *path, unsigned flags,
35 int literally)
37 struct stat st;
38 struct object_id oid;
40 if (fstat(fd, &st) < 0 ||
41 (literally
42 ? hash_literally(&oid, fd, type, flags)
43 : index_fd(the_repository->index, &oid, fd, &st,
44 type_from_string(type), path, flags)))
45 die((flags & HASH_WRITE_OBJECT)
46 ? "Unable to add %s to database"
47 : "Unable to hash %s", path);
48 printf("%s\n", oid_to_hex(&oid));
49 maybe_flush_or_die(stdout, "hash to stdout");
52 static void hash_object(const char *path, const char *type, const char *vpath,
53 unsigned flags, int literally)
55 int fd;
56 fd = open(path, O_RDONLY);
57 if (fd < 0)
58 die_errno("Cannot open '%s'", path);
59 hash_fd(fd, type, vpath, flags, literally);
62 static void hash_stdin_paths(const char *type, int no_filters, unsigned flags,
63 int literally)
65 struct strbuf buf = STRBUF_INIT;
66 struct strbuf unquoted = STRBUF_INIT;
68 while (strbuf_getline(&buf, stdin) != EOF) {
69 if (buf.buf[0] == '"') {
70 strbuf_reset(&unquoted);
71 if (unquote_c_style(&unquoted, buf.buf, NULL))
72 die("line is badly quoted");
73 strbuf_swap(&buf, &unquoted);
75 hash_object(buf.buf, type, no_filters ? NULL : buf.buf, flags,
76 literally);
78 strbuf_release(&buf);
79 strbuf_release(&unquoted);
82 int cmd_hash_object(int argc, const char **argv, const char *prefix)
84 static const char * const hash_object_usage[] = {
85 N_("git hash-object [-t <type>] [-w] [--path=<file> | --no-filters] [--stdin] [--] <file>..."),
86 N_("git hash-object --stdin-paths"),
87 NULL
89 const char *type = blob_type;
90 int hashstdin = 0;
91 int stdin_paths = 0;
92 int no_filters = 0;
93 int literally = 0;
94 int nongit = 0;
95 unsigned flags = HASH_FORMAT_CHECK;
96 const char *vpath = NULL;
97 const struct option hash_object_options[] = {
98 OPT_STRING('t', NULL, &type, N_("type"), N_("object type")),
99 OPT_BIT('w', NULL, &flags, N_("write the object into the object database"),
100 HASH_WRITE_OBJECT),
101 OPT_COUNTUP( 0 , "stdin", &hashstdin, N_("read the object from stdin")),
102 OPT_BOOL( 0 , "stdin-paths", &stdin_paths, N_("read file names from stdin")),
103 OPT_BOOL( 0 , "no-filters", &no_filters, N_("store file as is without filters")),
104 OPT_BOOL( 0, "literally", &literally, N_("just hash any random garbage to create corrupt objects for debugging Git")),
105 OPT_STRING( 0 , "path", &vpath, N_("file"), N_("process file as it were from this path")),
106 OPT_END()
108 int i;
109 const char *errstr = NULL;
111 argc = parse_options(argc, argv, prefix, hash_object_options,
112 hash_object_usage, 0);
114 if (flags & HASH_WRITE_OBJECT)
115 prefix = setup_git_directory();
116 else
117 prefix = setup_git_directory_gently(&nongit);
119 if (vpath && prefix)
120 vpath = xstrdup(prefix_filename(prefix, vpath));
122 git_config(git_default_config, NULL);
124 if (stdin_paths) {
125 if (hashstdin)
126 errstr = "Can't use --stdin-paths with --stdin";
127 else if (argc)
128 errstr = "Can't specify files with --stdin-paths";
129 else if (vpath)
130 errstr = "Can't use --stdin-paths with --path";
132 else {
133 if (hashstdin > 1)
134 errstr = "Multiple --stdin arguments are not supported";
135 if (vpath && no_filters)
136 errstr = "Can't use --path with --no-filters";
139 if (errstr) {
140 error("%s", errstr);
141 usage_with_options(hash_object_usage, hash_object_options);
144 if (hashstdin)
145 hash_fd(0, type, vpath, flags, literally);
147 for (i = 0 ; i < argc; i++) {
148 const char *arg = argv[i];
149 char *to_free = NULL;
151 if (prefix)
152 arg = to_free = prefix_filename(prefix, arg);
153 hash_object(arg, type, no_filters ? NULL : vpath ? vpath : arg,
154 flags, literally);
155 free(to_free);
158 if (stdin_paths)
159 hash_stdin_paths(type, no_filters, flags, literally);
161 return 0;