1#include "cache.h"
2#include "string-list.h"
3/*
5 * A "string_list_each_func_t" function that normalizes an entry from
6 * GIT_CEILING_DIRECTORIES. If the path is unusable for some reason,
7 * die with an explanation.
8 */
9static int normalize_ceiling_entry(struct string_list_item *item, void *unused)
10{
11 const char *ceil = item->string;
12 int len = strlen(ceil);
13 char buf[PATH_MAX+1];
14 if (len == 0)
16 die("Empty path is not supported");
17 if (len > PATH_MAX)
18 die("Path \"%s\" is too long", ceil);
19 if (!is_absolute_path(ceil))
20 die("Path \"%s\" is not absolute", ceil);
21 if (normalize_path_copy(buf, ceil) < 0)
22 die("Path \"%s\" could not be normalized", ceil);
23 len = strlen(buf);
24 free(item->string);
25 item->string = xstrdup(buf);
26 return 1;
27}
28static void normalize_argv_string(const char **var, const char *input)
30{
31 if (!strcmp(input, "<null>"))
32 *var = NULL;
33 else if (!strcmp(input, "<empty>"))
34 *var = "";
35 else
36 *var = input;
37 if (*var && (**var == '<' || **var == '('))
39 die("Bad value: %s\n", input);
40}
41struct test_data {
43 const char *from; /* input: transform from this ... */
44 const char *to; /* output: ... to this. */
45 const char *alternative; /* output: ... or this. */
46};
47static int test_function(struct test_data *data, char *(*func)(char *input),
49 const char *funcname)
50{
51 int failed = 0, i;
52 char buffer[1024];
53 char *to;
54 for (i = 0; data[i].to; i++) {
56 if (!data[i].from)
57 to = func(NULL);
58 else {
59 xsnprintf(buffer, sizeof(buffer), "%s", data[i].from);
60 to = func(buffer);
61 }
62 if (!strcmp(to, data[i].to))
63 continue;
64 if (!data[i].alternative)
65 error("FAIL: %s(%s) => '%s' != '%s'\n",
66 funcname, data[i].from, to, data[i].to);
67 else if (!strcmp(to, data[i].alternative))
68 continue;
69 else
70 error("FAIL: %s(%s) => '%s' != '%s', '%s'\n",
71 funcname, data[i].from, to, data[i].to,
72 data[i].alternative);
73 failed = 1;
74 }
75 return failed;
76}
77static struct test_data basename_data[] = {
79 /* --- POSIX type paths --- */
80 { NULL, "." },
81 { "", "." },
82 { ".", "." },
83 { "..", ".." },
84 { "/", "/" },
85 { "//", "/", "//" },
86 { "///", "/", "//" },
87 { "////", "/", "//" },
88 { "usr", "usr" },
89 { "/usr", "usr" },
90 { "/usr/", "usr" },
91 { "/usr//", "usr" },
92 { "/usr/lib", "lib" },
93 { "usr/lib", "lib" },
94 { "usr/lib///", "lib" },
95#if defined(__MINGW32__) || defined(_MSC_VER)
97 /* --- win32 type paths --- */
98 { "\\usr", "usr" },
99 { "\\usr\\", "usr" },
100 { "\\usr\\\\", "usr" },
101 { "\\usr\\lib", "lib" },
102 { "usr\\lib", "lib" },
103 { "usr\\lib\\\\\\", "lib" },
104 { "C:/usr", "usr" },
105 { "C:/usr", "usr" },
106 { "C:/usr/", "usr" },
107 { "C:/usr//", "usr" },
108 { "C:/usr/lib", "lib" },
109 { "C:usr/lib", "lib" },
110 { "C:usr/lib///", "lib" },
111 { "C:", "." },
112 { "C:a", "a" },
113 { "C:/", "/" },
114 { "C:///", "/" },
115 { "\\", "\\", "/" },
116 { "\\\\", "\\", "/" },
117 { "\\\\\\", "\\", "/" },
118#endif
119 { NULL, NULL }
120};
121static struct test_data dirname_data[] = {
123 /* --- POSIX type paths --- */
124 { NULL, "." },
125 { "", "." },
126 { ".", "." },
127 { "..", "." },
128 { "/", "/" },
129 { "//", "/", "//" },
130 { "///", "/", "//" },
131 { "////", "/", "//" },
132 { "usr", "." },
133 { "/usr", "/" },
134 { "/usr/", "/" },
135 { "/usr//", "/" },
136 { "/usr/lib", "/usr" },
137 { "usr/lib", "usr" },
138 { "usr/lib///", "usr" },
139#if defined(__MINGW32__) || defined(_MSC_VER)
141 /* --- win32 type paths --- */
142 { "\\", "\\" },
143 { "\\\\", "\\\\" },
144 { "\\usr", "\\" },
145 { "\\usr\\", "\\" },
146 { "\\usr\\\\", "\\" },
147 { "\\usr\\lib", "\\usr" },
148 { "usr\\lib", "usr" },
149 { "usr\\lib\\\\\\", "usr" },
150 { "C:a", "C:." },
151 { "C:/", "C:/" },
152 { "C:///", "C:/" },
153 { "C:/usr", "C:/" },
154 { "C:/usr/", "C:/" },
155 { "C:/usr//", "C:/" },
156 { "C:/usr/lib", "C:/usr" },
157 { "C:usr/lib", "C:usr" },
158 { "C:usr/lib///", "C:usr" },
159 { "\\\\\\", "\\" },
160 { "\\\\\\\\", "\\" },
161 { "C:", "C:.", "." },
162#endif
163 { NULL, NULL }
164};
165int main(int argc, char **argv)
167{
168 if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) {
169 char *buf = xmalloc(PATH_MAX + 1);
170 int rv = normalize_path_copy(buf, argv[2]);
171 if (rv)
172 buf = "++failed++";
173 puts(buf);
174 return 0;
175 }
176 if (argc >= 2 && !strcmp(argv[1], "real_path")) {
178 while (argc > 2) {
179 puts(real_path(argv[2]));
180 argc--;
181 argv++;
182 }
183 return 0;
184 }
185 if (argc >= 2 && !strcmp(argv[1], "absolute_path")) {
187 while (argc > 2) {
188 puts(absolute_path(argv[2]));
189 argc--;
190 argv++;
191 }
192 return 0;
193 }
194 if (argc == 4 && !strcmp(argv[1], "longest_ancestor_length")) {
196 int len;
197 struct string_list ceiling_dirs = STRING_LIST_INIT_DUP;
198 char *path = xstrdup(argv[2]);
199 /*
201 * We have to normalize the arguments because under
202 * Windows, bash mangles arguments that look like
203 * absolute POSIX paths or colon-separate lists of
204 * absolute POSIX paths into DOS paths (e.g.,
205 * "/foo:/foo/bar" might be converted to
206 * "D:\Src\msysgit\foo;D:\Src\msysgit\foo\bar"),
207 * whereas longest_ancestor_length() requires paths
208 * that use forward slashes.
209 */
210 if (normalize_path_copy(path, path))
211 die("Path \"%s\" could not be normalized", argv[2]);
212 string_list_split(&ceiling_dirs, argv[3], PATH_SEP, -1);
213 filter_string_list(&ceiling_dirs, 0,
214 normalize_ceiling_entry, NULL);
215 len = longest_ancestor_length(path, &ceiling_dirs);
216 string_list_clear(&ceiling_dirs, 0);
217 free(path);
218 printf("%d\n", len);
219 return 0;
220 }
221 if (argc >= 4 && !strcmp(argv[1], "prefix_path")) {
223 char *prefix = argv[2];
224 int prefix_len = strlen(prefix);
225 int nongit_ok;
226 setup_git_directory_gently(&nongit_ok);
227 while (argc > 3) {
228 puts(prefix_path(prefix, prefix_len, argv[3]));
229 argc--;
230 argv++;
231 }
232 return 0;
233 }
234 if (argc == 4 && !strcmp(argv[1], "strip_path_suffix")) {
236 char *prefix = strip_path_suffix(argv[2], argv[3]);
237 printf("%s\n", prefix ? prefix : "(null)");
238 return 0;
239 }
240 if (argc == 3 && !strcmp(argv[1], "print_path")) {
242 puts(argv[2]);
243 return 0;
244 }
245 if (argc == 4 && !strcmp(argv[1], "relative_path")) {
247 struct strbuf sb = STRBUF_INIT;
248 const char *in, *prefix, *rel;
249 normalize_argv_string(&in, argv[2]);
250 normalize_argv_string(&prefix, argv[3]);
251 rel = relative_path(in, prefix, &sb);
252 if (!rel)
253 puts("(null)");
254 else
255 puts(strlen(rel) > 0 ? rel : "(empty)");
256 strbuf_release(&sb);
257 return 0;
258 }
259 if (argc == 2 && !strcmp(argv[1], "basename"))
261 return test_function(basename_data, basename, argv[1]);
262 if (argc == 2 && !strcmp(argv[1], "dirname"))
264 return test_function(dirname_data, dirname, argv[1]);
265 fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
267 argv[1] ? argv[1] : "(there was none)");
268 return 1;
269}