test-path-utils.c

   1 #include "cache.h"
   2 #include "string-list.h"
   3
   4 /*
   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  */
   9 static 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
  15         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         if (len > 1 && buf[len-1] == '/')
  25                 die("Normalized path \"%s\" ended with slash", buf);
  26         free(item->string);
  27         item->string = xstrdup(buf);
  28         return 1;
  29 }
  30
  31 int main(int argc, char **argv)
  32 {
  33         if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) {
  34                 char *buf = xmalloc(PATH_MAX + 1);
  35                 int rv = normalize_path_copy(buf, argv[2]);
  36                 if (rv)
  37                         buf = "++failed++";
  38                 puts(buf);
  39                 return 0;
  40         }
  41
  42         if (argc >= 2 && !strcmp(argv[1], "real_path")) {
  43                 while (argc > 2) {
  44                         puts(real_path(argv[2]));
  45                         argc--;
  46                         argv++;
  47                 }
  48                 return 0;
  49         }
  50
  51         if (argc >= 2 && !strcmp(argv[1], "absolute_path")) {
  52                 while (argc > 2) {
  53                         puts(absolute_path(argv[2]));
  54                         argc--;
  55                         argv++;
  56                 }
  57                 return 0;
  58         }
  59
  60         if (argc == 4 && !strcmp(argv[1], "longest_ancestor_length")) {
  61                 int len;
  62                 struct string_list ceiling_dirs = STRING_LIST_INIT_DUP;
  63                 char *path = xstrdup(argv[2]);
  64
  65                 /*
  66                  * We have to normalize the arguments because under
  67                  * Windows, bash mangles arguments that look like
  68                  * absolute POSIX paths or colon-separate lists of
  69                  * absolute POSIX paths into DOS paths (e.g.,
  70                  * "/foo:/foo/bar" might be converted to
  71                  * "D:\Src\msysgit\foo;D:\Src\msysgit\foo\bar"),
  72                  * whereas longest_ancestor_length() requires paths
  73                  * that use forward slashes.
  74                  */
  75                 if (normalize_path_copy(path, path))
  76                         die("Path \"%s\" could not be normalized", argv[2]);
  77                 string_list_split(&ceiling_dirs, argv[3], PATH_SEP, -1);
  78                 filter_string_list(&ceiling_dirs, 0,
  79                                    normalize_ceiling_entry, NULL);
  80                 len = longest_ancestor_length(path, &ceiling_dirs);
  81                 string_list_clear(&ceiling_dirs, 0);
  82                 free(path);
  83                 printf("%d\n", len);
  84                 return 0;
  85         }
  86
  87         if (argc >= 4 && !strcmp(argv[1], "prefix_path")) {
  88                 char *prefix = argv[2];
  89                 int prefix_len = strlen(prefix);
  90                 int nongit_ok;
  91                 setup_git_directory_gently(&nongit_ok);
  92                 while (argc > 3) {
  93                         puts(prefix_path(prefix, prefix_len, argv[3]));
  94                         argc--;
  95                         argv++;
  96                 }
  97                 return 0;
  98         }
  99
 100         if (argc == 4 && !strcmp(argv[1], "strip_path_suffix")) {
 101                 char *prefix = strip_path_suffix(argv[2], argv[3]);
 102                 printf("%s\n", prefix ? prefix : "(null)");
 103                 return 0;
 104         }
 105
 106         fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
 107                 argv[1] ? argv[1] : "(there was none)");
 108         return 1;
 109 }