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1 | #include "builtin.h" | |
2 | #include "cache.h" | |
3 | #include "config.h" | |
4 | #include "attr.h" | |
5 | #include "quote.h" | |
6 | #include "parse-options.h" | |
7 | ||
8 | static int all_attrs; | |
9 | static int cached_attrs; | |
10 | static int stdin_paths; | |
11 | static const char * const check_attr_usage[] = { | |
12 | N_("git check-attr [-a | --all | <attr>...] [--] <pathname>..."), | |
13 | N_("git check-attr --stdin [-z] [-a | --all | <attr>...]"), | |
14 | NULL | |
15 | }; | |
16 | ||
17 | static int nul_term_line; | |
18 | ||
19 | static const struct option check_attr_options[] = { | |
20 | OPT_BOOL('a', "all", &all_attrs, N_("report all attributes set on file")), | |
21 | OPT_BOOL(0, "cached", &cached_attrs, N_("use .gitattributes only from the index")), | |
22 | OPT_BOOL(0 , "stdin", &stdin_paths, N_("read file names from stdin")), | |
23 | OPT_BOOL('z', NULL, &nul_term_line, | |
24 | N_("terminate input and output records by a NUL character")), | |
25 | OPT_END() | |
26 | }; | |
27 | ||
28 | static void output_attr(struct attr_check *check, const char *file) | |
29 | { | |
30 | int j; | |
31 | int cnt = check->nr; | |
32 | ||
33 | for (j = 0; j < cnt; j++) { | |
34 | const char *value = check->items[j].value; | |
35 | ||
36 | if (ATTR_TRUE(value)) | |
37 | value = "set"; | |
38 | else if (ATTR_FALSE(value)) | |
39 | value = "unset"; | |
40 | else if (ATTR_UNSET(value)) | |
41 | value = "unspecified"; | |
42 | ||
43 | if (nul_term_line) { | |
44 | printf("%s%c" /* path */ | |
45 | "%s%c" /* attrname */ | |
46 | "%s%c" /* attrvalue */, | |
47 | file, 0, | |
48 | git_attr_name(check->items[j].attr), 0, value, 0); | |
49 | } else { | |
50 | quote_c_style(file, NULL, stdout, 0); | |
51 | printf(": %s: %s\n", | |
52 | git_attr_name(check->items[j].attr), value); | |
53 | } | |
54 | } | |
55 | } | |
56 | ||
57 | static void check_attr(const char *prefix, | |
58 | struct attr_check *check, | |
59 | int collect_all, | |
60 | const char *file) | |
61 | { | |
62 | char *full_path = | |
63 | prefix_path(prefix, prefix ? strlen(prefix) : 0, file); | |
64 | ||
65 | if (collect_all) { | |
66 | git_all_attrs(full_path, check); | |
67 | } else { | |
68 | if (git_check_attr(full_path, check)) | |
69 | die("git_check_attr died"); | |
70 | } | |
71 | output_attr(check, file); | |
72 | ||
73 | free(full_path); | |
74 | } | |
75 | ||
76 | static void check_attr_stdin_paths(const char *prefix, | |
77 | struct attr_check *check, | |
78 | int collect_all) | |
79 | { | |
80 | struct strbuf buf = STRBUF_INIT; | |
81 | struct strbuf unquoted = STRBUF_INIT; | |
82 | strbuf_getline_fn getline_fn; | |
83 | ||
84 | getline_fn = nul_term_line ? strbuf_getline_nul : strbuf_getline_lf; | |
85 | while (getline_fn(&buf, stdin) != EOF) { | |
86 | if (!nul_term_line && buf.buf[0] == '"') { | |
87 | strbuf_reset(&unquoted); | |
88 | if (unquote_c_style(&unquoted, buf.buf, NULL)) | |
89 | die("line is badly quoted"); | |
90 | strbuf_swap(&buf, &unquoted); | |
91 | } | |
92 | check_attr(prefix, check, collect_all, buf.buf); | |
93 | maybe_flush_or_die(stdout, "attribute to stdout"); | |
94 | } | |
95 | strbuf_release(&buf); | |
96 | strbuf_release(&unquoted); | |
97 | } | |
98 | ||
99 | static NORETURN void error_with_usage(const char *msg) | |
100 | { | |
101 | error("%s", msg); | |
102 | usage_with_options(check_attr_usage, check_attr_options); | |
103 | } | |
104 | ||
105 | int cmd_check_attr(int argc, const char **argv, const char *prefix) | |
106 | { | |
107 | struct attr_check *check; | |
108 | int cnt, i, doubledash, filei; | |
109 | ||
110 | if (!is_bare_repository()) | |
111 | setup_work_tree(); | |
112 | ||
113 | git_config(git_default_config, NULL); | |
114 | ||
115 | argc = parse_options(argc, argv, prefix, check_attr_options, | |
116 | check_attr_usage, PARSE_OPT_KEEP_DASHDASH); | |
117 | ||
118 | if (read_cache() < 0) { | |
119 | die("invalid cache"); | |
120 | } | |
121 | ||
122 | if (cached_attrs) | |
123 | git_attr_set_direction(GIT_ATTR_INDEX, NULL); | |
124 | ||
125 | doubledash = -1; | |
126 | for (i = 0; doubledash < 0 && i < argc; i++) { | |
127 | if (!strcmp(argv[i], "--")) | |
128 | doubledash = i; | |
129 | } | |
130 | ||
131 | /* Process --all and/or attribute arguments: */ | |
132 | if (all_attrs) { | |
133 | if (doubledash >= 1) | |
134 | error_with_usage("Attributes and --all both specified"); | |
135 | ||
136 | cnt = 0; | |
137 | filei = doubledash + 1; | |
138 | } else if (doubledash == 0) { | |
139 | error_with_usage("No attribute specified"); | |
140 | } else if (doubledash < 0) { | |
141 | if (!argc) | |
142 | error_with_usage("No attribute specified"); | |
143 | ||
144 | if (stdin_paths) { | |
145 | /* Treat all arguments as attribute names. */ | |
146 | cnt = argc; | |
147 | filei = argc; | |
148 | } else { | |
149 | /* Treat exactly one argument as an attribute name. */ | |
150 | cnt = 1; | |
151 | filei = 1; | |
152 | } | |
153 | } else { | |
154 | cnt = doubledash; | |
155 | filei = doubledash + 1; | |
156 | } | |
157 | ||
158 | /* Check file argument(s): */ | |
159 | if (stdin_paths) { | |
160 | if (filei < argc) | |
161 | error_with_usage("Can't specify files with --stdin"); | |
162 | } else { | |
163 | if (filei >= argc) | |
164 | error_with_usage("No file specified"); | |
165 | } | |
166 | ||
167 | check = attr_check_alloc(); | |
168 | if (!all_attrs) { | |
169 | for (i = 0; i < cnt; i++) { | |
170 | const struct git_attr *a = git_attr(argv[i]); | |
171 | ||
172 | if (!a) | |
173 | return error("%s: not a valid attribute name", | |
174 | argv[i]); | |
175 | attr_check_append(check, a); | |
176 | } | |
177 | } | |
178 | ||
179 | if (stdin_paths) | |
180 | check_attr_stdin_paths(prefix, check, all_attrs); | |
181 | else { | |
182 | for (i = filei; i < argc; i++) | |
183 | check_attr(prefix, check, all_attrs, argv[i]); | |
184 | maybe_flush_or_die(stdout, "attribute to stdout"); | |
185 | } | |
186 | ||
187 | attr_check_free(check); | |
188 | return 0; | |
189 | } |