Andrew's git - gitweb.git/blob

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