Code

Merge branch 'cn/maint-rev-list-doc' into maint-1.7.8
[git.git] / path.c
diff --git a/path.c b/path.c
index a2c9d1e24afb9d1250c846791607c49d82e9565e..b6f71d1086981dc41bdbbc8954eccd9e9b719f98 100644 (file)
--- a/path.c
+++ b/path.c
@@ -139,7 +139,7 @@ char *git_path_submodule(const char *path, const char *fmt, ...)
                strbuf_addch(&buf, '/');
        strbuf_addstr(&buf, ".git");
 
-       git_dir = read_gitfile_gently(buf.buf);
+       git_dir = read_gitfile(buf.buf);
        if (git_dir) {
                strbuf_reset(&buf);
                strbuf_addstr(&buf, git_dir);
@@ -161,119 +161,6 @@ char *git_path_submodule(const char *path, const char *fmt, ...)
        return cleanup_path(pathname);
 }
 
-/* git_mkstemp() - create tmp file honoring TMPDIR variable */
-int git_mkstemp(char *path, size_t len, const char *template)
-{
-       const char *tmp;
-       size_t n;
-
-       tmp = getenv("TMPDIR");
-       if (!tmp)
-               tmp = "/tmp";
-       n = snprintf(path, len, "%s/%s", tmp, template);
-       if (len <= n) {
-               errno = ENAMETOOLONG;
-               return -1;
-       }
-       return mkstemp(path);
-}
-
-/* git_mkstemps() - create tmp file with suffix honoring TMPDIR variable. */
-int git_mkstemps(char *path, size_t len, const char *template, int suffix_len)
-{
-       const char *tmp;
-       size_t n;
-
-       tmp = getenv("TMPDIR");
-       if (!tmp)
-               tmp = "/tmp";
-       n = snprintf(path, len, "%s/%s", tmp, template);
-       if (len <= n) {
-               errno = ENAMETOOLONG;
-               return -1;
-       }
-       return mkstemps(path, suffix_len);
-}
-
-/* Adapted from libiberty's mkstemp.c. */
-
-#undef TMP_MAX
-#define TMP_MAX 16384
-
-int git_mkstemps_mode(char *pattern, int suffix_len, int mode)
-{
-       static const char letters[] =
-               "abcdefghijklmnopqrstuvwxyz"
-               "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-               "0123456789";
-       static const int num_letters = 62;
-       uint64_t value;
-       struct timeval tv;
-       char *template;
-       size_t len;
-       int fd, count;
-
-       len = strlen(pattern);
-
-       if (len < 6 + suffix_len) {
-               errno = EINVAL;
-               return -1;
-       }
-
-       if (strncmp(&pattern[len - 6 - suffix_len], "XXXXXX", 6)) {
-               errno = EINVAL;
-               return -1;
-       }
-
-       /*
-        * Replace pattern's XXXXXX characters with randomness.
-        * Try TMP_MAX different filenames.
-        */
-       gettimeofday(&tv, NULL);
-       value = ((size_t)(tv.tv_usec << 16)) ^ tv.tv_sec ^ getpid();
-       template = &pattern[len - 6 - suffix_len];
-       for (count = 0; count < TMP_MAX; ++count) {
-               uint64_t v = value;
-               /* Fill in the random bits. */
-               template[0] = letters[v % num_letters]; v /= num_letters;
-               template[1] = letters[v % num_letters]; v /= num_letters;
-               template[2] = letters[v % num_letters]; v /= num_letters;
-               template[3] = letters[v % num_letters]; v /= num_letters;
-               template[4] = letters[v % num_letters]; v /= num_letters;
-               template[5] = letters[v % num_letters]; v /= num_letters;
-
-               fd = open(pattern, O_CREAT | O_EXCL | O_RDWR, mode);
-               if (fd > 0)
-                       return fd;
-               /*
-                * Fatal error (EPERM, ENOSPC etc).
-                * It doesn't make sense to loop.
-                */
-               if (errno != EEXIST)
-                       break;
-               /*
-                * This is a random value.  It is only necessary that
-                * the next TMP_MAX values generated by adding 7777 to
-                * VALUE are different with (module 2^32).
-                */
-               value += 7777;
-       }
-       /* We return the null string if we can't find a unique file name.  */
-       pattern[0] = '\0';
-       return -1;
-}
-
-int git_mkstemp_mode(char *pattern, int mode)
-{
-       /* mkstemp is just mkstemps with no suffix */
-       return git_mkstemps_mode(pattern, 0, mode);
-}
-
-int gitmkstemps(char *pattern, int suffix_len)
-{
-       return git_mkstemps_mode(pattern, suffix_len, 0600);
-}
-
 int validate_headref(const char *path)
 {
        struct stat st;
@@ -396,7 +283,7 @@ return_null:
  * links.  User relative paths are also returned as they are given,
  * except DWIM suffixing.
  */
-char *enter_repo(char *path, int strict)
+const char *enter_repo(const char *path, int strict)
 {
        static char used_path[PATH_MAX];
        static char validated_path[PATH_MAX];
@@ -408,16 +295,19 @@ char *enter_repo(char *path, int strict)
                static const char *suffix[] = {
                        ".git/.git", "/.git", ".git", "", NULL,
                };
+               const char *gitfile;
                int len = strlen(path);
                int i;
-               while ((1 < len) && (path[len-1] == '/')) {
-                       path[len-1] = 0;
+               while ((1 < len) && (path[len-1] == '/'))
                        len--;
-               }
+
                if (PATH_MAX <= len)
                        return NULL;
-               if (path[0] == '~') {
-                       char *newpath = expand_user_path(path);
+               strncpy(used_path, path, len); used_path[len] = 0 ;
+               strcpy(validated_path, used_path);
+
+               if (used_path[0] == '~') {
+                       char *newpath = expand_user_path(used_path);
                        if (!newpath || (PATH_MAX - 10 < strlen(newpath))) {
                                free(newpath);
                                return NULL;
@@ -429,24 +319,23 @@ char *enter_repo(char *path, int strict)
                         * anyway.
                         */
                        strcpy(used_path, newpath); free(newpath);
-                       strcpy(validated_path, path);
-                       path = used_path;
                }
                else if (PATH_MAX - 10 < len)
                        return NULL;
-               else {
-                       path = strcpy(used_path, path);
-                       strcpy(validated_path, path);
-               }
-               len = strlen(path);
+               len = strlen(used_path);
                for (i = 0; suffix[i]; i++) {
-                       strcpy(path + len, suffix[i]);
-                       if (!access(path, F_OK)) {
+                       strcpy(used_path + len, suffix[i]);
+                       if (!access(used_path, F_OK)) {
                                strcat(validated_path, suffix[i]);
                                break;
                        }
                }
-               if (!suffix[i] || chdir(path))
+               if (!suffix[i])
+                       return NULL;
+               gitfile = read_gitfile(used_path) ;
+               if (gitfile)
+                       strcpy(used_path, gitfile);
+               if (chdir(used_path))
                        return NULL;
                path = validated_path;
        }
@@ -510,7 +399,7 @@ int set_shared_perm(const char *path, int mode)
        return 0;
 }
 
-const char *make_relative_path(const char *abs, const char *base)
+const char *relative_path(const char *abs, const char *base)
 {
        static char buf[PATH_MAX + 1];
        int i = 0, j = 0;