has_uncommitted_changes(): fall back to empty tree

diff --git a/environment.c b/environment.c
index 3fd4b1084590d0118cad5e7ae32fb37e570e7523..63ac38a46f8f01ee3d09ed8e09bd93acba63b21a 100644 (file)
--- a/environment.c
+++ b/environment.c
@@ -76,6 +76,7 @@ int protect_hfs = PROTECT_HFS_DEFAULT;
 #define PROTECT_NTFS_DEFAULT 0
 #endif
 int protect_ntfs = PROTECT_NTFS_DEFAULT;
+const char *core_fsmonitor;
 
 /*
  * The character that begins a commented line in user-editable file
@@ -97,7 +98,7 @@ int ignore_untracked_cache_config;
 /* This is set by setup_git_dir_gently() and/or git_default_config() */
 char *git_work_tree_cfg;
 
-static const char *namespace;
+static char *namespace;
 
 static const char *super_prefix;
 
@@ -152,8 +153,10 @@ void setup_git_env(void)
        if (getenv(NO_REPLACE_OBJECTS_ENVIRONMENT))
                check_replace_refs = 0;
        replace_ref_base = getenv(GIT_REPLACE_REF_BASE_ENVIRONMENT);
+       free(git_replace_ref_base);
        git_replace_ref_base = xstrdup(replace_ref_base ? replace_ref_base
                                                          : "refs/replace/");
+       free(namespace);
        namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT));
        shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT);
        if (shallow_file)
@@ -336,3 +339,23 @@ void reset_shared_repository(void)
 {
        need_shared_repository_from_config = 1;
 }
+
+int use_optional_locks(void)
+{
+       return git_env_bool(GIT_OPTIONAL_LOCKS_ENVIRONMENT, 1);
+}
+
+int print_sha1_ellipsis(void)
+{
+       /*
+        * Determine if the calling environment contains the variable
+        * GIT_PRINT_SHA1_ELLIPSIS set to "yes".
+        */
+       static int cached_result = -1; /* unknown */
+
+       if (cached_result < 0) {
+               const char *v = getenv("GIT_PRINT_SHA1_ELLIPSIS");
+               cached_result = (v && !strcasecmp(v, "yes"));
+       }
+       return cached_result;
+}