X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=environment.c;h=63ac38a46f8f01ee3d09ed8e09bd93acba63b21a;hb=7398243260f2f0342d9d6e7ce25a194c77741ce0;hp=8fa032f3074255541dc3f3d926fedf6b1991dd91;hpb=c3d2d34fbf64c1d39e8bec03fea85ef14aeda692;p=git-core%2Fgit.git

diff --git a/environment.c b/environment.c
index 8fa032f30..63ac38a46 100644
--- a/environment.c
+++ b/environment.c
@@ -344,3 +344,18 @@ 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;
+}