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