t/helper/test-path-utils.c

   1 #include "cache.h"
   2 #include "string-list.h"
   3 #include "utf8.h"
   4
   5 /*
   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.
   9  */
  10 static int normalize_ceiling_entry(struct string_list_item *item, void *unused)
  11 {
  12         char *ceil = item->string;
  13
  14         if (!*ceil)
  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);
  20         return 1;
  21 }
  22
  23 static void normalize_argv_string(const char **var, const char *input)
  24 {
  25         if (!strcmp(input, "<null>"))
  26                 *var = NULL;
  27         else if (!strcmp(input, "<empty>"))
  28                 *var = "";
  29         else
  30                 *var = input;
  31
  32         if (*var && (**var == '<' || **var == '('))
  33                 die("Bad value: %s\n", input);
  34 }
  35
  36 struct test_data {
  37         const char *from;  /* input:  transform from this ... */
  38         const char *to;    /* output: ... to this.            */
  39         const char *alternative; /* output: ... or this.      */
  40 };
  41
  42 static int test_function(struct test_data *data, char *(*func)(char *input),
  43         const char *funcname)
  44 {
  45         int failed = 0, i;
  46         char buffer[1024];
  47         char *to;
  48
  49         for (i = 0; data[i].to; i++) {
  50                 if (!data[i].from)
  51                         to = func(NULL);
  52                 else {
  53                         xsnprintf(buffer, sizeof(buffer), "%s", data[i].from);
  54                         to = func(buffer);
  55                 }
  56                 if (!strcmp(to, data[i].to))
  57                         continue;
  58                 if (!data[i].alternative)
  59                         error("FAIL: %s(%s) => '%s' != '%s'\n",
  60                                 funcname, data[i].from, to, data[i].to);
  61                 else if (!strcmp(to, data[i].alternative))
  62                         continue;
  63                 else
  64                         error("FAIL: %s(%s) => '%s' != '%s', '%s'\n",
  65                                 funcname, data[i].from, to, data[i].to,
  66                                 data[i].alternative);
  67                 failed = 1;
  68         }
  69         return failed;
  70 }
  71
  72 static struct test_data basename_data[] = {
  73         /* --- POSIX type paths --- */
  74         { NULL,              "."    },
  75         { "",                "."    },
  76         { ".",               "."    },
  77         { "..",              ".."   },
  78         { "/",               "/"    },
  79         { "//",              "/", "//" },
  80         { "///",             "/", "//" },
  81         { "////",            "/", "//" },
  82         { "usr",             "usr"  },
  83         { "/usr",            "usr"  },
  84         { "/usr/",           "usr"  },
  85         { "/usr//",          "usr"  },
  86         { "/usr/lib",        "lib"  },
  87         { "usr/lib",         "lib"  },
  88         { "usr/lib///",      "lib"  },
  89
  90 #if defined(__MINGW32__) || defined(_MSC_VER)
  91         /* --- win32 type paths --- */
  92         { "\\usr",           "usr"  },
  93         { "\\usr\\",         "usr"  },
  94         { "\\usr\\\\",       "usr"  },
  95         { "\\usr\\lib",      "lib"  },
  96         { "usr\\lib",        "lib"  },
  97         { "usr\\lib\\\\\\",  "lib"  },
  98         { "C:/usr",          "usr"  },
  99         { "C:/usr",          "usr"  },
 100         { "C:/usr/",         "usr"  },
 101         { "C:/usr//",        "usr"  },
 102         { "C:/usr/lib",      "lib"  },
 103         { "C:usr/lib",       "lib"  },
 104         { "C:usr/lib///",    "lib"  },
 105         { "C:",              "."    },
 106         { "C:a",             "a"    },
 107         { "C:/",             "/"    },
 108         { "C:///",           "/"    },
 109         { "\\",              "\\", "/" },
 110         { "\\\\",            "\\", "/" },
 111         { "\\\\\\",          "\\", "/" },
 112 #endif
 113         { NULL,              NULL   }
 114 };
 115
 116 static struct test_data dirname_data[] = {
 117         /* --- POSIX type paths --- */
 118         { NULL,              "."      },
 119         { "",                "."      },
 120         { ".",               "."      },
 121         { "..",              "."      },
 122         { "/",               "/"      },
 123         { "//",              "/", "//" },
 124         { "///",             "/", "//" },
 125         { "////",            "/", "//" },
 126         { "usr",             "."      },
 127         { "/usr",            "/"      },
 128         { "/usr/",           "/"      },
 129         { "/usr//",          "/"      },
 130         { "/usr/lib",        "/usr"   },
 131         { "usr/lib",         "usr"    },
 132         { "usr/lib///",      "usr"    },
 133
 134 #if defined(__MINGW32__) || defined(_MSC_VER)
 135         /* --- win32 type paths --- */
 136         { "\\",              "\\"     },
 137         { "\\\\",            "\\\\"   },
 138         { "\\usr",           "\\"     },
 139         { "\\usr\\",         "\\"     },
 140         { "\\usr\\\\",       "\\"     },
 141         { "\\usr\\lib",      "\\usr"  },
 142         { "usr\\lib",        "usr"    },
 143         { "usr\\lib\\\\\\",  "usr"    },
 144         { "C:a",             "C:."    },
 145         { "C:/",             "C:/"    },
 146         { "C:///",           "C:/"    },
 147         { "C:/usr",          "C:/"    },
 148         { "C:/usr/",         "C:/"    },
 149         { "C:/usr//",        "C:/"    },
 150         { "C:/usr/lib",      "C:/usr" },
 151         { "C:usr/lib",       "C:usr"  },
 152         { "C:usr/lib///",    "C:usr"  },
 153         { "\\\\\\",          "\\"     },
 154         { "\\\\\\\\",        "\\"     },
 155         { "C:",              "C:.", "." },
 156 #endif
 157         { NULL,              NULL     }
 158 };
 159
 160 static int is_dotgitmodules(const char *path)
 161 {
 162         return is_hfs_dotgitmodules(path) || is_ntfs_dotgitmodules(path);
 163 }
 164
 165 int cmd_main(int argc, const char **argv)
 166 {
 167         if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) {
 168                 char *buf = xmallocz(strlen(argv[2]));
 169                 int rv = normalize_path_copy(buf, argv[2]);
 170                 if (rv)
 171                         buf = "++failed++";
 172                 puts(buf);
 173                 return 0;
 174         }
 175
 176         if (argc >= 2 && !strcmp(argv[1], "real_path")) {
 177                 while (argc > 2) {
 178                         puts(real_path(argv[2]));
 179                         argc--;
 180                         argv++;
 181                 }
 182                 return 0;
 183         }
 184
 185         if (argc >= 2 && !strcmp(argv[1], "absolute_path")) {
 186                 while (argc > 2) {
 187                         puts(absolute_path(argv[2]));
 188                         argc--;
 189                         argv++;
 190                 }
 191                 return 0;
 192         }
 193
 194         if (argc == 4 && !strcmp(argv[1], "longest_ancestor_length")) {
 195                 int len;
 196                 struct string_list ceiling_dirs = STRING_LIST_INIT_DUP;
 197                 char *path = xstrdup(argv[2]);
 198
 199                 /*
 200                  * We have to normalize the arguments because under
 201                  * Windows, bash mangles arguments that look like
 202                  * absolute POSIX paths or colon-separate lists of
 203                  * absolute POSIX paths into DOS paths (e.g.,
 204                  * "/foo:/foo/bar" might be converted to
 205                  * "D:\Src\msysgit\foo;D:\Src\msysgit\foo\bar"),
 206                  * whereas longest_ancestor_length() requires paths
 207                  * that use forward slashes.
 208                  */
 209                 if (normalize_path_copy(path, path))
 210                         die("Path \"%s\" could not be normalized", argv[2]);
 211                 string_list_split(&ceiling_dirs, argv[3], PATH_SEP, -1);
 212                 filter_string_list(&ceiling_dirs, 0,
 213                                    normalize_ceiling_entry, NULL);
 214                 len = longest_ancestor_length(path, &ceiling_dirs);
 215                 string_list_clear(&ceiling_dirs, 0);
 216                 free(path);
 217                 printf("%d\n", len);
 218                 return 0;
 219         }
 220
 221         if (argc >= 4 && !strcmp(argv[1], "prefix_path")) {
 222                 const char *prefix = argv[2];
 223                 int prefix_len = strlen(prefix);
 224                 int nongit_ok;
 225                 setup_git_directory_gently(&nongit_ok);
 226                 while (argc > 3) {
 227                         puts(prefix_path(prefix, prefix_len, argv[3]));
 228                         argc--;
 229                         argv++;
 230                 }
 231                 return 0;
 232         }
 233
 234         if (argc == 4 && !strcmp(argv[1], "strip_path_suffix")) {
 235                 char *prefix = strip_path_suffix(argv[2], argv[3]);
 236                 printf("%s\n", prefix ? prefix : "(null)");
 237                 return 0;
 238         }
 239
 240         if (argc == 3 && !strcmp(argv[1], "print_path")) {
 241                 puts(argv[2]);
 242                 return 0;
 243         }
 244
 245         if (argc == 4 && !strcmp(argv[1], "relative_path")) {
 246                 struct strbuf sb = STRBUF_INIT;
 247                 const char *in, *prefix, *rel;
 248                 normalize_argv_string(&in, argv[2]);
 249                 normalize_argv_string(&prefix, argv[3]);
 250                 rel = relative_path(in, prefix, &sb);
 251                 if (!rel)
 252                         puts("(null)");
 253                 else
 254                         puts(strlen(rel) > 0 ? rel : "(empty)");
 255                 strbuf_release(&sb);
 256                 return 0;
 257         }
 258
 259         if (argc == 2 && !strcmp(argv[1], "basename"))
 260                 return test_function(basename_data, basename, argv[1]);
 261
 262         if (argc == 2 && !strcmp(argv[1], "dirname"))
 263                 return test_function(dirname_data, dirname, argv[1]);
 264
 265         if (argc > 2 && !strcmp(argv[1], "is_dotgitmodules")) {
 266                 int res = 0, expect = 1, i;
 267                 for (i = 2; i < argc; i++)
 268                         if (!strcmp("--not", argv[i]))
 269                                 expect = !expect;
 270                         else if (expect != is_dotgitmodules(argv[i]))
 271                                 res = error("'%s' is %s.gitmodules", argv[i],
 272                                             expect ? "not " : "");
 273                         else
 274                                 fprintf(stderr, "ok: '%s' is %s.gitmodules\n",
 275                                         argv[i], expect ? "" : "not ");
 276                 return !!res;
 277         }
 278
 279         fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
 280                 argv[1] ? argv[1] : "(there was none)");
 281         return 1;
 282 }