Merge tag 'v1.9.2' into HEADbaserock/ps/update-git

Git 1.9.2

1 files changed, 11 insertions, 11 deletions

diff --git a/environment.c b/environment.c
index 5398c36dd4..4a3437d8a6 100644
--- a/environment.c
+++ b/environment.c
@@ -10,6 +10,7 @@
 #include "cache.h"
 #include "refs.h"
 #include "fmt-merge-msg.h"
+#include "commit.h"
 
 int trust_executable_bit = 1;
 int trust_ctime = 1;
@@ -97,6 +98,7 @@ const char * const local_repo_env[] = {
 	INDEX_ENVIRONMENT,
 	NO_REPLACE_OBJECTS_ENVIRONMENT,
 	GIT_PREFIX_ENVIRONMENT,
+	GIT_SHALLOW_FILE_ENVIRONMENT,
 	NULL
 };
 
@@ -123,14 +125,14 @@ static char *expand_namespace(const char *raw_namespace)
 
 static void setup_git_env(void)
 {
+	const char *gitfile;
+	const char *shallow_file;
+
 	git_dir = getenv(GIT_DIR_ENVIRONMENT);
-	git_dir = git_dir ? xstrdup(git_dir) : NULL;
-	if (!git_dir) {
-		git_dir = read_gitfile(DEFAULT_GIT_DIR_ENVIRONMENT);
-		git_dir = git_dir ? xstrdup(git_dir) : NULL;
-	}
 	if (!git_dir)
 		git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
+	gitfile = read_gitfile(git_dir);
+	git_dir = xstrdup(gitfile ? gitfile : git_dir);
 	git_object_dir = getenv(DB_ENVIRONMENT);
 	if (!git_object_dir) {
 		git_object_dir = xmalloc(strlen(git_dir) + 9);
@@ -148,6 +150,9 @@ static void setup_git_env(void)
 		read_replace_refs = 0;
 	namespace = expand_namespace(getenv(GIT_NAMESPACE_ENVIRONMENT));
 	namespace_len = strlen(namespace);
+	shallow_file = getenv(GIT_SHALLOW_FILE_ENVIRONMENT);
+	if (shallow_file)
+		set_alternate_shallow_file(shallow_file, 0);
 }
 
 int is_bare_repository(void)
@@ -156,11 +161,6 @@ int is_bare_repository(void)
 	return is_bare_repository_cfg && !get_git_work_tree();
 }
 
-int have_git_dir(void)
-{
-	return !!git_dir;
-}
-
 const char *get_git_dir(void)
 {
 	if (!git_dir)
@@ -177,7 +177,7 @@ const char *get_git_namespace(void)
 
 const char *strip_namespace(const char *namespaced_ref)
 {
-	if (prefixcmp(namespaced_ref, get_git_namespace()) != 0)
+	if (!starts_with(namespaced_ref, get_git_namespace()))
 		return NULL;
 	return namespaced_ref + namespace_len;
 }