From 6a0cd93cf5983e8ab33c62093985de847e9d3358 Mon Sep 17 00:00:00 2001
From: Doug MacEachern <dougm@hyperic.com>
Date: Sun, 4 Apr 2010 10:25:58 -0700
Subject: [PATCH] fix rev-parse when not on a local branch

---
 .../src/org/hyperic/jni/ArchNameTask.java          | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/bindings/java/hyperic_jni/src/org/hyperic/jni/ArchNameTask.java b/bindings/java/hyperic_jni/src/org/hyperic/jni/ArchNameTask.java
index 4bbf2a65..5a991b99 100644
--- a/bindings/java/hyperic_jni/src/org/hyperic/jni/ArchNameTask.java
+++ b/bindings/java/hyperic_jni/src/org/hyperic/jni/ArchNameTask.java
@@ -177,8 +177,18 @@ public class ArchNameTask extends Task {
             String head = readLine(git + "/HEAD");
 
             if (head != null) {
-                String ref = head.substring(5).trim(); //'ref: '
-                return readLine(git + "/" + ref).substring(0, 7);
+                String sha1;
+                final String refp = "ref: ";
+                if (head.startsWith(refp)) {
+                    //branch
+                    String ref = head.substring(refp.length()).trim();
+                    sha1 = readLine(git + "/" + ref);
+                }
+                else {
+                    //git checkout -f origin/branch-name (no branch)
+                    sha1 = head;
+                }
+                return sha1.substring(0, 7);
             }
         }
         return null;