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Commit | Line | Data |
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7672db20 BL |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
8e440259 | 5 | * Copyright (C) Junio C Hamano, 2005 |
7672db20 BL |
6 | */ |
7 | #include "cache.h" | |
8e440259 | 8 | #include "blob.h" |
d8ee4832 | 9 | #include "quote.h" |
548601ad | 10 | #include "parse-options.h" |
2fb3f6db | 11 | #include "exec_cmd.h" |
7672db20 | 12 | |
43df4f86 | 13 | static void hash_fd(int fd, const char *type, int write_object, const char *path) |
7672db20 | 14 | { |
7672db20 BL |
15 | struct stat st; |
16 | unsigned char sha1[20]; | |
43df4f86 DP |
17 | if (fstat(fd, &st) < 0 || |
18 | index_fd(sha1, fd, &st, write_object, type_from_string(type), path)) | |
7672db20 BL |
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)); | |
d8ee4832 | 23 | maybe_flush_or_die(stdout, "hash to stdout"); |
7672db20 BL |
24 | } |
25 | ||
39702431 DP |
26 | static void hash_object(const char *path, const char *type, int write_object, |
27 | const char *vpath) | |
024510c8 | 28 | { |
43df4f86 DP |
29 | int fd; |
30 | fd = open(path, O_RDONLY); | |
31 | if (fd < 0) | |
0721c314 | 32 | die_errno("Cannot open '%s'", path); |
39702431 | 33 | hash_fd(fd, type, write_object, vpath); |
024510c8 DB |
34 | } |
35 | ||
d8ee4832 AR |
36 | static void hash_stdin_paths(const char *type, int write_objects) |
37 | { | |
f285a2d7 | 38 | struct strbuf buf = STRBUF_INIT, nbuf = STRBUF_INIT; |
d8ee4832 | 39 | |
d8ee4832 AR |
40 | while (strbuf_getline(&buf, stdin, '\n') != EOF) { |
41 | if (buf.buf[0] == '"') { | |
42 | strbuf_reset(&nbuf); | |
43 | if (unquote_c_style(&nbuf, buf.buf, NULL)) | |
44 | die("line is badly quoted"); | |
45 | strbuf_swap(&buf, &nbuf); | |
46 | } | |
39702431 | 47 | hash_object(buf.buf, type, write_objects, buf.buf); |
d8ee4832 AR |
48 | } |
49 | strbuf_release(&buf); | |
50 | strbuf_release(&nbuf); | |
51 | } | |
52 | ||
548601ad | 53 | static const char * const hash_object_usage[] = { |
4a3d85dc | 54 | "git hash-object [-t <type>] [-w] [--path=<file>|--no-filters] [--stdin] [--] <file>...", |
548601ad DP |
55 | "git hash-object --stdin-paths < <list-of-paths>", |
56 | NULL | |
57 | }; | |
7672db20 | 58 | |
548601ad DP |
59 | static const char *type; |
60 | static int write_object; | |
61 | static int hashstdin; | |
62 | static int stdin_paths; | |
4a3d85dc | 63 | static int no_filters; |
39702431 | 64 | static const char *vpath; |
548601ad DP |
65 | |
66 | static const struct option hash_object_options[] = { | |
67 | OPT_STRING('t', NULL, &type, "type", "object type"), | |
68 | OPT_BOOLEAN('w', NULL, &write_object, "write the object into the object database"), | |
69 | OPT_BOOLEAN( 0 , "stdin", &hashstdin, "read the object from stdin"), | |
70 | OPT_BOOLEAN( 0 , "stdin-paths", &stdin_paths, "read file names from stdin"), | |
4a3d85dc | 71 | OPT_BOOLEAN( 0 , "no-filters", &no_filters, "store file as is without filters"), |
39702431 | 72 | OPT_STRING( 0 , "path", &vpath, "file", "process file as it were from this path"), |
548601ad DP |
73 | OPT_END() |
74 | }; | |
75 | ||
b28a1ce0 | 76 | int cmd_hash_object(int argc, const char **argv, const char *prefix) |
7672db20 BL |
77 | { |
78 | int i; | |
706fe6ae | 79 | int prefix_length = -1; |
548601ad DP |
80 | const char *errstr = NULL; |
81 | ||
82 | type = blob_type; | |
7672db20 | 83 | |
37782920 SB |
84 | argc = parse_options(argc, argv, NULL, hash_object_options, |
85 | hash_object_usage, 0); | |
548601ad DP |
86 | |
87 | if (write_object) { | |
88 | prefix = setup_git_directory(); | |
89 | prefix_length = prefix ? strlen(prefix) : 0; | |
39702431 DP |
90 | if (vpath && prefix) |
91 | vpath = prefix_filename(prefix, prefix_length, vpath); | |
7672db20 | 92 | } |
d8ee4832 | 93 | |
272459a3 EN |
94 | git_config(git_default_config, NULL); |
95 | ||
548601ad DP |
96 | if (stdin_paths) { |
97 | if (hashstdin) | |
98 | errstr = "Can't use --stdin-paths with --stdin"; | |
99 | else if (argc) | |
100 | errstr = "Can't specify files with --stdin-paths"; | |
39702431 DP |
101 | else if (vpath) |
102 | errstr = "Can't use --stdin-paths with --path"; | |
4a3d85dc DP |
103 | else if (no_filters) |
104 | errstr = "Can't use --stdin-paths with --no-filters"; | |
105 | } | |
106 | else { | |
107 | if (hashstdin > 1) | |
108 | errstr = "Multiple --stdin arguments are not supported"; | |
109 | if (vpath && no_filters) | |
110 | errstr = "Can't use --path with --no-filters"; | |
548601ad | 111 | } |
548601ad DP |
112 | |
113 | if (errstr) { | |
42fc1139 | 114 | error("%s", errstr); |
548601ad DP |
115 | usage_with_options(hash_object_usage, hash_object_options); |
116 | } | |
d8ee4832 | 117 | |
8a2f5e5b | 118 | if (hashstdin) |
39702431 | 119 | hash_fd(0, type, write_object, vpath); |
548601ad DP |
120 | |
121 | for (i = 0 ; i < argc; i++) { | |
122 | const char *arg = argv[i]; | |
123 | ||
124 | if (0 <= prefix_length) | |
125 | arg = prefix_filename(prefix, prefix_length, arg); | |
4a3d85dc DP |
126 | hash_object(arg, type, write_object, |
127 | no_filters ? NULL : vpath ? vpath : arg); | |
548601ad DP |
128 | } |
129 | ||
130 | if (stdin_paths) | |
131 | hash_stdin_paths(type, write_object); | |
132 | ||
7672db20 BL |
133 | return 0; |
134 | } |