Merge branch 'jc/fetch-refspec-doc-update'

diff --git a/cache.h b/cache.h
index 49b083ee0a10ea379f271e141ccee0fa852a1954..6440e2bf21f5800db98f82fcedff46478188674e 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -444,6 +444,7 @@ static inline enum object_type object_type(unsigned int mode)
 #define GIT_NOGLOB_PATHSPECS_ENVIRONMENT "GIT_NOGLOB_PATHSPECS"
 #define GIT_ICASE_PATHSPECS_ENVIRONMENT "GIT_ICASE_PATHSPECS"
 #define GIT_QUARANTINE_ENVIRONMENT "GIT_QUARANTINE_PATH"
+#define GIT_OPTIONAL_LOCKS_ENVIRONMENT "GIT_OPTIONAL_LOCKS"
 
 /*
  * This environment variable is expected to contain a boolean indicating
@@ -783,6 +784,11 @@ extern int protect_ntfs;
  */
 extern int ref_paranoia;
 
+/*
+ * Returns the boolean value of $GIT_OPTIONAL_LOCKS (or the default value).
+ */
+int use_optional_locks(void);
+
 /*
  * The character that begins a commented line in user-editable file
  * that is subject to stripspace.
@@ -1244,8 +1250,8 @@ static inline unsigned int hexval(unsigned char c)
  */
 static inline int hex2chr(const char *s)
 {
-       int val = hexval(s[0]);
-       return (val < 0) ? val : (val << 4) | hexval(s[1]);
+       unsigned int val = hexval(s[0]);
+       return (val & ~0xf) ? val : (val << 4) | hexval(s[1]);
 }
 
 /* Convert to/from hex/sha1 representation */