1 #include "builtin.h"
2 #include "cache.h"
3 #include "attr.h"
4 #include "quote.h"
5 #include "parse-options.h"
7 static int stdin_paths;
8 static const char * const check_attr_usage[] = {
9 "git check-attr attr... [--] pathname...",
10 "git check-attr --stdin attr... < <list-of-paths>",
11 NULL
12 };
14 static int null_term_line;
16 static const struct option check_attr_options[] = {
17 OPT_BOOLEAN(0 , "stdin", &stdin_paths, "read file names from stdin"),
18 OPT_BOOLEAN('z', NULL, &null_term_line,
19 "input paths are terminated by a null character"),
20 OPT_END()
21 };
23 static void output_attr(int cnt, struct git_attr_check *check,
24 const char *file)
25 {
26 int j;
27 for (j = 0; j < cnt; j++) {
28 const char *value = check[j].value;
30 if (ATTR_TRUE(value))
31 value = "set";
32 else if (ATTR_FALSE(value))
33 value = "unset";
34 else if (ATTR_UNSET(value))
35 value = "unspecified";
37 quote_c_style(file, NULL, stdout, 0);
38 printf(": %s: %s\n", git_attr_name(check[j].attr), value);
39 }
40 }
42 static void check_attr(int cnt, struct git_attr_check *check,
43 const char *file)
44 {
45 if (git_checkattr(file, cnt, check))
46 die("git_checkattr died");
47 output_attr(cnt, check, file);
48 }
50 static void check_attr_stdin_paths(int cnt, struct git_attr_check *check)
51 {
52 struct strbuf buf, nbuf;
53 int line_termination = null_term_line ? 0 : '\n';
55 strbuf_init(&buf, 0);
56 strbuf_init(&nbuf, 0);
57 while (strbuf_getline(&buf, stdin, line_termination) != EOF) {
58 if (line_termination && buf.buf[0] == '"') {
59 strbuf_reset(&nbuf);
60 if (unquote_c_style(&nbuf, buf.buf, NULL))
61 die("line is badly quoted");
62 strbuf_swap(&buf, &nbuf);
63 }
64 check_attr(cnt, check, buf.buf);
65 maybe_flush_or_die(stdout, "attribute to stdout");
66 }
67 strbuf_release(&buf);
68 strbuf_release(&nbuf);
69 }
71 int cmd_check_attr(int argc, const char **argv, const char *prefix)
72 {
73 struct git_attr_check *check;
74 int cnt, i, doubledash, filei;
75 const char *errstr = NULL;
77 argc = parse_options(argc, argv, prefix, check_attr_options,
78 check_attr_usage, PARSE_OPT_KEEP_DASHDASH);
79 if (!argc)
80 usage_with_options(check_attr_usage, check_attr_options);
82 if (read_cache() < 0) {
83 die("invalid cache");
84 }
86 doubledash = -1;
87 for (i = 0; doubledash < 0 && i < argc; i++) {
88 if (!strcmp(argv[i], "--"))
89 doubledash = i;
90 }
92 /* If there is no double dash, we handle only one attribute */
93 if (doubledash < 0) {
94 cnt = 1;
95 filei = 1;
96 } else {
97 cnt = doubledash;
98 filei = doubledash + 1;
99 }
101 if (cnt <= 0)
102 errstr = "No attribute specified";
103 else if (stdin_paths && filei < argc)
104 errstr = "Can't specify files with --stdin";
105 if (errstr) {
106 error("%s", errstr);
107 usage_with_options(check_attr_usage, check_attr_options);
108 }
110 check = xcalloc(cnt, sizeof(*check));
111 for (i = 0; i < cnt; i++) {
112 const char *name;
113 struct git_attr *a;
114 name = argv[i];
115 a = git_attr(name);
116 if (!a)
117 return error("%s: not a valid attribute name", name);
118 check[i].attr = a;
119 }
121 if (stdin_paths)
122 check_attr_stdin_paths(cnt, check);
123 else {
124 for (i = filei; i < argc; i++)
125 check_attr(cnt, check, argv[i]);
126 maybe_flush_or_die(stdout, "attribute to stdout");
127 }
128 return 0;
129 }