Andrew's git - gitweb.git/blob - t/helper/test-path-utils.c

   1#include "test-tool.h"
   2#include "cache.h"
   3#include "string-list.h"
   4#include "utf8.h"
   5
   6/*
   7 * A "string_list_each_func_t" function that normalizes an entry from
   8 * GIT_CEILING_DIRECTORIES.  If the path is unusable for some reason,
   9 * die with an explanation.
  10 */
  11static int normalize_ceiling_entry(struct string_list_item *item, void *unused)
  12{
  13        char *ceil = item->string;
  14
  15        if (!*ceil)
  16                die("Empty path is not supported");
  17        if (!is_absolute_path(ceil))
  18                die("Path \"%s\" is not absolute", ceil);
  19        if (normalize_path_copy(ceil, ceil) < 0)
  20                die("Path \"%s\" could not be normalized", ceil);
  21        return 1;
  22}
  23
  24static void normalize_argv_string(const char **var, const char *input)
  25{
  26        if (!strcmp(input, "<null>"))
  27                *var = NULL;
  28        else if (!strcmp(input, "<empty>"))
  29                *var = "";
  30        else
  31                *var = input;
  32
  33        if (*var && (**var == '<' || **var == '('))
  34                die("Bad value: %s\n", input);
  35}
  36
  37struct test_data {
  38        const char *from;  /* input:  transform from this ... */
  39        const char *to;    /* output: ... to this.            */
  40        const char *alternative; /* output: ... or this.      */
  41};
  42
  43/*
  44 * Compatibility wrappers for OpenBSD, whose basename(3) and dirname(3)
  45 * have const parameters.
  46 */
  47static char *posix_basename(char *path)
  48{
  49        return basename(path);
  50}
  51
  52static char *posix_dirname(char *path)
  53{
  54        return dirname(path);
  55}
  56
  57static int test_function(struct test_data *data, char *(*func)(char *input),
  58        const char *funcname)
  59{
  60        int failed = 0, i;
  61        char buffer[1024];
  62        char *to;
  63
  64        for (i = 0; data[i].to; i++) {
  65                if (!data[i].from)
  66                        to = func(NULL);
  67                else {
  68                        xsnprintf(buffer, sizeof(buffer), "%s", data[i].from);
  69                        to = func(buffer);
  70                }
  71                if (!strcmp(to, data[i].to))
  72                        continue;
  73                if (!data[i].alternative)
  74                        error("FAIL: %s(%s) => '%s' != '%s'\n",
  75                                funcname, data[i].from, to, data[i].to);
  76                else if (!strcmp(to, data[i].alternative))
  77                        continue;
  78                else
  79                        error("FAIL: %s(%s) => '%s' != '%s', '%s'\n",
  80                                funcname, data[i].from, to, data[i].to,
  81                                data[i].alternative);
  82                failed = 1;
  83        }
  84        return failed;
  85}
  86
  87static struct test_data basename_data[] = {
  88        /* --- POSIX type paths --- */
  89        { NULL,              "."    },
  90        { "",                "."    },
  91        { ".",               "."    },
  92        { "..",              ".."   },
  93        { "/",               "/"    },
  94        { "//",              "/", "//" },
  95        { "///",             "/", "//" },
  96        { "////",            "/", "//" },
  97        { "usr",             "usr"  },
  98        { "/usr",            "usr"  },
  99        { "/usr/",           "usr"  },
 100        { "/usr//",          "usr"  },
 101        { "/usr/lib",        "lib"  },
 102        { "usr/lib",         "lib"  },
 103        { "usr/lib///",      "lib"  },
 104
 105#if defined(__MINGW32__) || defined(_MSC_VER)
 106        /* --- win32 type paths --- */
 107        { "\\usr",           "usr"  },
 108        { "\\usr\\",         "usr"  },
 109        { "\\usr\\\\",       "usr"  },
 110        { "\\usr\\lib",      "lib"  },
 111        { "usr\\lib",        "lib"  },
 112        { "usr\\lib\\\\\\",  "lib"  },
 113        { "C:/usr",          "usr"  },
 114        { "C:/usr",          "usr"  },
 115        { "C:/usr/",         "usr"  },
 116        { "C:/usr//",        "usr"  },
 117        { "C:/usr/lib",      "lib"  },
 118        { "C:usr/lib",       "lib"  },
 119        { "C:usr/lib///",    "lib"  },
 120        { "C:",              "."    },
 121        { "C:a",             "a"    },
 122        { "C:/",             "/"    },
 123        { "C:///",           "/"    },
 124        { "\\",              "\\", "/" },
 125        { "\\\\",            "\\", "/" },
 126        { "\\\\\\",          "\\", "/" },
 127#endif
 128        { NULL,              NULL   }
 129};
 130
 131static struct test_data dirname_data[] = {
 132        /* --- POSIX type paths --- */
 133        { NULL,              "."      },
 134        { "",                "."      },
 135        { ".",               "."      },
 136        { "..",              "."      },
 137        { "/",               "/"      },
 138        { "//",              "/", "//" },
 139        { "///",             "/", "//" },
 140        { "////",            "/", "//" },
 141        { "usr",             "."      },
 142        { "/usr",            "/"      },
 143        { "/usr/",           "/"      },
 144        { "/usr//",          "/"      },
 145        { "/usr/lib",        "/usr"   },
 146        { "usr/lib",         "usr"    },
 147        { "usr/lib///",      "usr"    },
 148
 149#if defined(__MINGW32__) || defined(_MSC_VER)
 150        /* --- win32 type paths --- */
 151        { "\\",              "\\"     },
 152        { "\\\\",            "\\\\"   },
 153        { "\\usr",           "\\"     },
 154        { "\\usr\\",         "\\"     },
 155        { "\\usr\\\\",       "\\"     },
 156        { "\\usr\\lib",      "\\usr"  },
 157        { "usr\\lib",        "usr"    },
 158        { "usr\\lib\\\\\\",  "usr"    },
 159        { "C:a",             "C:."    },
 160        { "C:/",             "C:/"    },
 161        { "C:///",           "C:/"    },
 162        { "C:/usr",          "C:/"    },
 163        { "C:/usr/",         "C:/"    },
 164        { "C:/usr//",        "C:/"    },
 165        { "C:/usr/lib",      "C:/usr" },
 166        { "C:usr/lib",       "C:usr"  },
 167        { "C:usr/lib///",    "C:usr"  },
 168        { "\\\\\\",          "\\"     },
 169        { "\\\\\\\\",        "\\"     },
 170        { "C:",              "C:.", "." },
 171#endif
 172        { NULL,              NULL     }
 173};
 174
 175static int is_dotgitmodules(const char *path)
 176{
 177        return is_hfs_dotgitmodules(path) || is_ntfs_dotgitmodules(path);
 178}
 179
 180int cmd__path_utils(int argc, const char **argv)
 181{
 182        if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) {
 183                char *buf = xmallocz(strlen(argv[2]));
 184                int rv = normalize_path_copy(buf, argv[2]);
 185                if (rv)
 186                        buf = "++failed++";
 187                puts(buf);
 188                return 0;
 189        }
 190
 191        if (argc >= 2 && !strcmp(argv[1], "real_path")) {
 192                while (argc > 2) {
 193                        puts(real_path(argv[2]));
 194                        argc--;
 195                        argv++;
 196                }
 197                return 0;
 198        }
 199
 200        if (argc >= 2 && !strcmp(argv[1], "absolute_path")) {
 201                while (argc > 2) {
 202                        puts(absolute_path(argv[2]));
 203                        argc--;
 204                        argv++;
 205                }
 206                return 0;
 207        }
 208
 209        if (argc == 4 && !strcmp(argv[1], "longest_ancestor_length")) {
 210                int len;
 211                struct string_list ceiling_dirs = STRING_LIST_INIT_DUP;
 212                char *path = xstrdup(argv[2]);
 213
 214                /*
 215                 * We have to normalize the arguments because under
 216                 * Windows, bash mangles arguments that look like
 217                 * absolute POSIX paths or colon-separate lists of
 218                 * absolute POSIX paths into DOS paths (e.g.,
 219                 * "/foo:/foo/bar" might be converted to
 220                 * "D:\Src\msysgit\foo;D:\Src\msysgit\foo\bar"),
 221                 * whereas longest_ancestor_length() requires paths
 222                 * that use forward slashes.
 223                 */
 224                if (normalize_path_copy(path, path))
 225                        die("Path \"%s\" could not be normalized", argv[2]);
 226                string_list_split(&ceiling_dirs, argv[3], PATH_SEP, -1);
 227                filter_string_list(&ceiling_dirs, 0,
 228                                   normalize_ceiling_entry, NULL);
 229                len = longest_ancestor_length(path, &ceiling_dirs);
 230                string_list_clear(&ceiling_dirs, 0);
 231                free(path);
 232                printf("%d\n", len);
 233                return 0;
 234        }
 235
 236        if (argc >= 4 && !strcmp(argv[1], "prefix_path")) {
 237                const char *prefix = argv[2];
 238                int prefix_len = strlen(prefix);
 239                int nongit_ok;
 240                setup_git_directory_gently(&nongit_ok);
 241                while (argc > 3) {
 242                        puts(prefix_path(prefix, prefix_len, argv[3]));
 243                        argc--;
 244                        argv++;
 245                }
 246                return 0;
 247        }
 248
 249        if (argc == 4 && !strcmp(argv[1], "strip_path_suffix")) {
 250                char *prefix = strip_path_suffix(argv[2], argv[3]);
 251                printf("%s\n", prefix ? prefix : "(null)");
 252                return 0;
 253        }
 254
 255        if (argc == 3 && !strcmp(argv[1], "print_path")) {
 256                puts(argv[2]);
 257                return 0;
 258        }
 259
 260        if (argc == 4 && !strcmp(argv[1], "relative_path")) {
 261                struct strbuf sb = STRBUF_INIT;
 262                const char *in, *prefix, *rel;
 263                normalize_argv_string(&in, argv[2]);
 264                normalize_argv_string(&prefix, argv[3]);
 265                rel = relative_path(in, prefix, &sb);
 266                if (!rel)
 267                        puts("(null)");
 268                else
 269                        puts(strlen(rel) > 0 ? rel : "(empty)");
 270                strbuf_release(&sb);
 271                return 0;
 272        }
 273
 274        if (argc == 2 && !strcmp(argv[1], "basename"))
 275                return test_function(basename_data, posix_basename, argv[1]);
 276
 277        if (argc == 2 && !strcmp(argv[1], "dirname"))
 278                return test_function(dirname_data, posix_dirname, argv[1]);
 279
 280        if (argc > 2 && !strcmp(argv[1], "is_dotgitmodules")) {
 281                int res = 0, expect = 1, i;
 282                for (i = 2; i < argc; i++)
 283                        if (!strcmp("--not", argv[i]))
 284                                expect = !expect;
 285                        else if (expect != is_dotgitmodules(argv[i]))
 286                                res = error("'%s' is %s.gitmodules", argv[i],
 287                                            expect ? "not " : "");
 288                        else
 289                                fprintf(stderr, "ok: '%s' is %s.gitmodules\n",
 290                                        argv[i], expect ? "" : "not ");
 291                return !!res;
 292        }
 293
 294        fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
 295                argv[1] ? argv[1] : "(there was none)");
 296        return 1;
 297}