documentation: help: add "man.<tool>.path" config variable

diff --git a/setup.c b/setup.c
index 3d2d9580f3283b4e4bc741d98863777510bd5173..1b4fa6a8c4289bedf10f57d9aa19db4c7f186b01 100644 (file)
--- a/setup.c
+++ b/setup.c
@@ -428,21 +428,53 @@ const char *setup_git_directory_gently(int *nongit_ok)
 
 int git_config_perm(const char *var, const char *value)
 {
-       if (value) {
-               int i;
-               if (!strcmp(value, "umask"))
-                       return PERM_UMASK;
-               if (!strcmp(value, "group"))
-                       return PERM_GROUP;
-               if (!strcmp(value, "all") ||
-                   !strcmp(value, "world") ||
-                   !strcmp(value, "everybody"))
-                       return PERM_EVERYBODY;
-               i = atoi(value);
-               if (i > 1)
-                       return i;
+       int i;
+       char *endptr;
+
+       if (value == NULL)
+               return PERM_GROUP;
+
+       if (!strcmp(value, "umask"))
+               return PERM_UMASK;
+       if (!strcmp(value, "group"))
+               return PERM_GROUP;
+       if (!strcmp(value, "all") ||
+           !strcmp(value, "world") ||
+           !strcmp(value, "everybody"))
+               return PERM_EVERYBODY;
+
+       /* Parse octal numbers */
+       i = strtol(value, &endptr, 8);
+
+       /* If not an octal number, maybe true/false? */
+       if (*endptr != 0)
+               return git_config_bool(var, value) ? PERM_GROUP : PERM_UMASK;
+
+       /*
+        * Treat values 0, 1 and 2 as compatibility cases, otherwise it is
+        * a chmod value.
+        */
+       switch (i) {
+       case PERM_UMASK:               /* 0 */
+               return PERM_UMASK;
+       case OLD_PERM_GROUP:           /* 1 */
+               return PERM_GROUP;
+       case OLD_PERM_EVERYBODY:       /* 2 */
+               return PERM_EVERYBODY;
        }
-       return git_config_bool(var, value);
+
+       /* A filemode value was given: 0xxx */
+
+       if ((i & 0600) != 0600)
+               die("Problem with core.sharedRepository filemode value "
+                   "(0%.3o).\nThe owner of files must always have "
+                   "read and write permissions.", i);
+
+       /*
+        * Mask filemode value. Others can not get write permission.
+        * x flags for directories are handled separately.
+        */
+       return i & 0666;
 }
 
 int check_repository_format_version(const char *var, const char *value)