Merge branch 'rs/blame'

[git.git] / compat / cygwin.c

diff --git a/compat/cygwin.c b/compat/cygwin.c
index 423ff20b0ef88111acbb61bd590fe39a4504a93a..ebac1483929c798905e6558e0013e3de3d6abeb2 100644 (file)
--- a/compat/cygwin.c
+++ b/compat/cygwin.c
@@ -91,13 +91,24 @@ static int cygwin_stat(const char *path, struct stat *buf)
  * functions should be used. The choice is determined by core.ignorecygwinfstricks.
  * Reading this option is not always possible immediately as git_dir may be
  * not be set yet. So until it is set, use cygwin lstat/stat functions.
+ * However, if core.filemode is set, we must use the Cygwin posix
+ * stat/lstat as the Windows stat fuctions do not determine posix filemode.
+ *
+ * Note that git_cygwin_config() does NOT call git_default_config() and this
+ * is deliberate.  Many commands read from config to establish initial
+ * values in variables and later tweak them from elsewhere (e.g. command line).
+ * init_stat() is called lazily on demand, typically much late in the program,
+ * and calling git_default_config() from here would break such variables.
  */
 static int native_stat = 1;
+static int core_filemode;
 
 static int git_cygwin_config(const char *var, const char *value, void *cb)
 {
        if (!strcmp(var, "core.ignorecygwinfstricks"))
                native_stat = git_config_bool(var, value);
+       else if (!strcmp(var, "core.filemode"))
+               core_filemode = git_config_bool(var, value);
        return 0;
 }
 
@@ -105,8 +116,13 @@ static int init_stat(void)
 {
        if (have_git_dir()) {
                git_config(git_cygwin_config, NULL);
-               cygwin_stat_fn = native_stat ? cygwin_stat : stat;
-               cygwin_lstat_fn = native_stat ? cygwin_lstat : lstat;
+               if (!core_filemode && native_stat) {
+                       cygwin_stat_fn = cygwin_stat;
+                       cygwin_lstat_fn = cygwin_lstat;
+               } else {
+                       cygwin_stat_fn = stat;
+                       cygwin_lstat_fn = lstat;
+               }
                return 0;
        }
        return 1;