Windows: allow using UNC path for git repository

[efl: moved MinGW-specific part to compat/]
[jes: fixed compilation on non-Windows]

Eric Sunshine fixed mingw_offset_1st_component() to return
consistently "foo" for UNC "//machine/share/foo", cf

http://groups.google.com/group/msysgit/browse_thread/thread/c0af578549b5dda0

Author: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Cezary Zawadka <czawadka@gmail.com>
Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Stepan Kasal <kasal@ucw.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/cache.h b/cache.h
index ebe9a405d811b2cc6b64109db135bb8ca4096e9e..0961fb5c7a1b91df656795affb89b0921e4814f6 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -781,7 +781,6 @@ int normalize_path_copy(char *dst, const char *src);
 int longest_ancestor_length(const char *path, struct string_list *prefixes);
 char *strip_path_suffix(const char *path, const char *suffix);
 int daemon_avoid_alias(const char *path);
-int offset_1st_component(const char *path);
 
 /* object replacement */
 #define LOOKUP_REPLACE_OBJECT 1

diff --git a/compat/mingw.c b/compat/mingw.c
index e9892f8ee48db4739321d37726cff63dec8c0f13..a0e13bc862c052d8c18a6cba1c47a5a15fd12f7b 100644 (file)
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1823,3 +1823,27 @@ pid_t waitpid(pid_t pid, int *status, int options)
        errno = EINVAL;
        return -1;
 }
+
+int mingw_offset_1st_component(const char *path)
+{
+       int offset = 0;
+       if (has_dos_drive_prefix(path))
+               offset = 2;
+
+       /* unc paths */
+       else if (is_dir_sep(path[0]) && is_dir_sep(path[1])) {
+
+               /* skip server name */
+               char *pos = strpbrk(path + 2, "\\/");
+               if (!pos)
+                       return 0; /* Error: malformed unc path */
+
+               do {
+                       pos++;
+               } while (*pos && !is_dir_sep(*pos));
+
+               offset = pos - path;
+       }
+
+       return offset + is_dir_sep(path[offset]);
+}

diff --git a/compat/mingw.h b/compat/mingw.h
index e033e720c900c430a0a74b0223522c396cb66629..3eaf822e28e23e6e46e82a9bb7c9db1ed42d252c 100644 (file)
--- a/compat/mingw.h
+++ b/compat/mingw.h
@@ -339,6 +339,8 @@ static inline char *mingw_find_last_dir_sep(const char *path)
        return ret;
 }
 #define find_last_dir_sep mingw_find_last_dir_sep
+int mingw_offset_1st_component(const char *path);
+#define offset_1st_component mingw_offset_1st_component
 #define PATH_SEP ';'
 #define PRIuMAX "I64u"
 #define PRId64 "I64d"

diff --git a/git-compat-util.h b/git-compat-util.h
index d493a8c67ac1a91c40dfff0023c6ecf14155c09a..ec41cfb23c906159b211443179f86d6fd853cf67 100644 (file)
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -270,6 +270,10 @@ extern char *gitbasename(char *);
 #define has_dos_drive_prefix(path) 0
 #endif
 
+#ifndef offset_1st_component
+#define offset_1st_component(path) (is_dir_sep((path)[0]))
+#endif
+
 #ifndef is_dir_sep
 #define is_dir_sep(c) ((c) == '/')
 #endif

diff --git a/path.c b/path.c
index f9c5062427e7d8170a1e2e597fcf22ae517a865e..bc804a31b3382e689dd6ff5b4a727b109a691f7a 100644 (file)
--- a/path.c
+++ b/path.c
@@ -823,10 +823,3 @@ int daemon_avoid_alias(const char *p)
                }
        }
 }
-
-int offset_1st_component(const char *path)
-{
-       if (has_dos_drive_prefix(path))
-               return 2 + is_dir_sep(path[2]);
-       return is_dir_sep(path[0]);
-}