2 #include "string-list.h"
6 * A "string_list_each_func_t" function that normalizes an entry from
7 * GIT_CEILING_DIRECTORIES. If the path is unusable for some reason,
8 * die with an explanation.
10 static int normalize_ceiling_entry(struct string_list_item
*item
, void *unused
)
12 char *ceil
= item
->string
;
15 die("Empty path is not supported");
16 if (!is_absolute_path(ceil
))
17 die("Path \"%s\" is not absolute", ceil
);
18 if (normalize_path_copy(ceil
, ceil
) < 0)
19 die("Path \"%s\" could not be normalized", ceil
);
23 static void normalize_argv_string(const char **var
, const char *input
)
25 if (!strcmp(input
, "<null>"))
27 else if (!strcmp(input
, "<empty>"))
32 if (*var
&& (**var
== '<' || **var
== '('))
33 die("Bad value: %s\n", input
);
37 const char *from
; /* input: transform from this ... */
38 const char *to
; /* output: ... to this. */
39 const char *alternative
; /* output: ... or this. */
43 * Compatibility wrappers for OpenBSD, whose basename(3) and dirname(3)
44 * have const parameters.
46 static char *posix_basename(char *path
)
48 return basename(path
);
51 static char *posix_dirname(char *path
)
56 static int test_function(struct test_data
*data
, char *(*func
)(char *input
),
63 for (i
= 0; data
[i
].to
; i
++) {
67 xsnprintf(buffer
, sizeof(buffer
), "%s", data
[i
].from
);
70 if (!strcmp(to
, data
[i
].to
))
72 if (!data
[i
].alternative
)
73 error("FAIL: %s(%s) => '%s' != '%s'\n",
74 funcname
, data
[i
].from
, to
, data
[i
].to
);
75 else if (!strcmp(to
, data
[i
].alternative
))
78 error("FAIL: %s(%s) => '%s' != '%s', '%s'\n",
79 funcname
, data
[i
].from
, to
, data
[i
].to
,
86 static struct test_data basename_data
[] = {
87 /* --- POSIX type paths --- */
95 { "////", "/", "//" },
100 { "/usr/lib", "lib" },
101 { "usr/lib", "lib" },
102 { "usr/lib///", "lib" },
104 #if defined(__MINGW32__) || defined(_MSC_VER)
105 /* --- win32 type paths --- */
107 { "\\usr\\", "usr" },
108 { "\\usr\\\\", "usr" },
109 { "\\usr\\lib", "lib" },
110 { "usr\\lib", "lib" },
111 { "usr\\lib\\\\\\", "lib" },
114 { "C:/usr/", "usr" },
115 { "C:/usr//", "usr" },
116 { "C:/usr/lib", "lib" },
117 { "C:usr/lib", "lib" },
118 { "C:usr/lib///", "lib" },
124 { "\\\\", "\\", "/" },
125 { "\\\\\\", "\\", "/" },
130 static struct test_data dirname_data
[] = {
131 /* --- POSIX type paths --- */
138 { "///", "/", "//" },
139 { "////", "/", "//" },
144 { "/usr/lib", "/usr" },
145 { "usr/lib", "usr" },
146 { "usr/lib///", "usr" },
148 #if defined(__MINGW32__) || defined(_MSC_VER)
149 /* --- win32 type paths --- */
154 { "\\usr\\\\", "\\" },
155 { "\\usr\\lib", "\\usr" },
156 { "usr\\lib", "usr" },
157 { "usr\\lib\\\\\\", "usr" },
162 { "C:/usr/", "C:/" },
163 { "C:/usr//", "C:/" },
164 { "C:/usr/lib", "C:/usr" },
165 { "C:usr/lib", "C:usr" },
166 { "C:usr/lib///", "C:usr" },
168 { "\\\\\\\\", "\\" },
169 { "C:", "C:.", "." },
174 static int is_dotgitmodules(const char *path
)
176 return is_hfs_dotgitmodules(path
) || is_ntfs_dotgitmodules(path
);
180 * A very simple, reproducible pseudo-random generator. Copied from
181 * `test-genrandom.c`.
183 static uint64_t my_random_value
= 1234;
185 static uint64_t my_random(void)
187 my_random_value
= my_random_value
* 1103515245 + 12345;
188 return my_random_value
;
192 * A fast approximation of the square root, without requiring math.h.
194 * It uses Newton's method to approximate the solution of 0 = x^2 - value.
196 static double my_sqrt(double value
)
198 const double epsilon
= 1e-6;
205 double delta
= (value
/ x
- x
) / 2;
206 if (delta
< epsilon
&& delta
> -epsilon
)
212 static int protect_ntfs_hfs_benchmark(int argc
, const char **argv
)
214 size_t i
, j
, nr
, min_len
= 3, max_len
= 20;
216 int repetitions
= 15, file_mode
= 0100644;
218 double m
[3][2], v
[3][2];
222 if (argc
> 1 && !strcmp(argv
[1], "--with-symlink-mode")) {
228 nr
= argc
> 1 ? strtoul(argv
[1], NULL
, 0) : 1000000;
229 ALLOC_ARRAY(names
, nr
);
232 min_len
= strtoul(argv
[2], NULL
, 0);
234 max_len
= strtoul(argv
[3], NULL
, 0);
235 if (min_len
> max_len
)
236 die("min_len > max_len");
239 for (i
= 0; i
< nr
; i
++) {
240 size_t len
= min_len
+ (my_random() % (max_len
+ 1 - min_len
));
242 names
[i
] = xmallocz(len
);
244 names
[i
][--len
] = (char)(' ' + (my_random() % ('\x7f' - ' ')));
247 for (protect_ntfs
= 0; protect_ntfs
< 2; protect_ntfs
++)
248 for (protect_hfs
= 0; protect_hfs
< 2; protect_hfs
++) {
251 for (i
= 0; i
< repetitions
; i
++) {
252 begin
= getnanotime();
253 for (j
= 0; j
< nr
; j
++)
254 verify_path(names
[j
], file_mode
);
256 printf("protect_ntfs = %d, protect_hfs = %d: %lfms\n", protect_ntfs
, protect_hfs
, (end
-begin
) / (double)1e6
);
257 cumul
+= end
- begin
;
258 cumul2
+= (end
- begin
) * (end
- begin
);
260 m
[protect_ntfs
][protect_hfs
] = cumul
/ (double)repetitions
;
261 v
[protect_ntfs
][protect_hfs
] = my_sqrt(cumul2
/ (double)repetitions
- m
[protect_ntfs
][protect_hfs
] * m
[protect_ntfs
][protect_hfs
]);
262 printf("mean: %lfms, stddev: %lfms\n", m
[protect_ntfs
][protect_hfs
] / (double)1e6
, v
[protect_ntfs
][protect_hfs
] / (double)1e6
);
265 for (protect_ntfs
= 0; protect_ntfs
< 2; protect_ntfs
++)
266 for (protect_hfs
= 0; protect_hfs
< 2; protect_hfs
++)
267 printf("ntfs=%d/hfs=%d: %lf%% slower\n", protect_ntfs
, protect_hfs
, (m
[protect_ntfs
][protect_hfs
] - m
[0][0]) * 100 / m
[0][0]);
272 int cmd_main(int argc
, const char **argv
)
274 if (argc
== 3 && !strcmp(argv
[1], "normalize_path_copy")) {
275 char *buf
= xmallocz(strlen(argv
[2]));
276 int rv
= normalize_path_copy(buf
, argv
[2]);
283 if (argc
>= 2 && !strcmp(argv
[1], "real_path")) {
285 puts(real_path(argv
[2]));
292 if (argc
>= 2 && !strcmp(argv
[1], "absolute_path")) {
294 puts(absolute_path(argv
[2]));
301 if (argc
== 4 && !strcmp(argv
[1], "longest_ancestor_length")) {
303 struct string_list ceiling_dirs
= STRING_LIST_INIT_DUP
;
304 char *path
= xstrdup(argv
[2]);
307 * We have to normalize the arguments because under
308 * Windows, bash mangles arguments that look like
309 * absolute POSIX paths or colon-separate lists of
310 * absolute POSIX paths into DOS paths (e.g.,
311 * "/foo:/foo/bar" might be converted to
312 * "D:\Src\msysgit\foo;D:\Src\msysgit\foo\bar"),
313 * whereas longest_ancestor_length() requires paths
314 * that use forward slashes.
316 if (normalize_path_copy(path
, path
))
317 die("Path \"%s\" could not be normalized", argv
[2]);
318 string_list_split(&ceiling_dirs
, argv
[3], PATH_SEP
, -1);
319 filter_string_list(&ceiling_dirs
, 0,
320 normalize_ceiling_entry
, NULL
);
321 len
= longest_ancestor_length(path
, &ceiling_dirs
);
322 string_list_clear(&ceiling_dirs
, 0);
328 if (argc
>= 4 && !strcmp(argv
[1], "prefix_path")) {
329 const char *prefix
= argv
[2];
330 int prefix_len
= strlen(prefix
);
332 setup_git_directory_gently(&nongit_ok
);
334 puts(prefix_path(prefix
, prefix_len
, argv
[3]));
341 if (argc
== 4 && !strcmp(argv
[1], "strip_path_suffix")) {
342 char *prefix
= strip_path_suffix(argv
[2], argv
[3]);
343 printf("%s\n", prefix
? prefix
: "(null)");
347 if (argc
== 3 && !strcmp(argv
[1], "print_path")) {
352 if (argc
== 4 && !strcmp(argv
[1], "relative_path")) {
353 struct strbuf sb
= STRBUF_INIT
;
354 const char *in
, *prefix
, *rel
;
355 normalize_argv_string(&in
, argv
[2]);
356 normalize_argv_string(&prefix
, argv
[3]);
357 rel
= relative_path(in
, prefix
, &sb
);
361 puts(strlen(rel
) > 0 ? rel
: "(empty)");
366 if (argc
== 2 && !strcmp(argv
[1], "basename"))
367 return test_function(basename_data
, posix_basename
, argv
[1]);
369 if (argc
== 2 && !strcmp(argv
[1], "dirname"))
370 return test_function(dirname_data
, posix_dirname
, argv
[1]);
372 if (argc
> 2 && !strcmp(argv
[1], "is_dotgitmodules")) {
373 int res
= 0, expect
= 1, i
;
374 for (i
= 2; i
< argc
; i
++)
375 if (!strcmp("--not", argv
[i
]))
377 else if (expect
!= is_dotgitmodules(argv
[i
]))
378 res
= error("'%s' is %s.gitmodules", argv
[i
],
379 expect
? "not " : "");
381 fprintf(stderr
, "ok: '%s' is %s.gitmodules\n",
382 argv
[i
], expect
? "" : "not ");
386 if (argc
> 1 && !strcmp(argv
[1], "protect_ntfs_hfs"))
387 return !!protect_ntfs_hfs_benchmark(argc
- 1, argv
+ 1);
389 if (argc
> 1 && !strcmp(argv
[1], "is_valid_path")) {
390 int res
= 0, expect
= 1, i
;
392 for (i
= 2; i
< argc
; i
++)
393 if (!strcmp("--not", argv
[i
]))
395 else if (expect
!= is_valid_path(argv
[i
]))
396 res
= error("'%s' is%s a valid path",
397 argv
[i
], expect
? " not" : "");
400 "'%s' is%s a valid path\n",
401 argv
[i
], expect
? "" : " not");
406 fprintf(stderr
, "%s: unknown function name: %s\n", argv
[0],
407 argv
[1] ? argv
[1] : "(there was none)");