Fix clone with commit-msg hook when project name contains '/'

Cloning a project 'foo/bar' with

  git clone ssh://<user>@<host>:29418/foo/bar

clones the project into a 'bar' folder.

This means that the commit-msg hook needs to be copied into
'bar/.git/hooks/', but so far the command tried to copy it into
'foo/bar/.git/hooks/' which failed since the folder didn't exist.

Change-Id: I2838a810682054dc1a585630480db8110bf71abc
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

src/main/java/com/googlesource/gerrit/plugins/download/command/CloneWithCommitMsgHook.java

diff --git a/src/main/java/com/googlesource/gerrit/plugins/download/command/CloneWithCommitMsgHook.java b/src/main/java/com/googlesource/gerrit/plugins/download/command/CloneWithCommitMsgHook.java
index 50a11c6..dfb95e6 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/download/command/CloneWithCommitMsgHook.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/download/command/CloneWithCommitMsgHook.java
@@ -48,8 +48,17 @@
         .append("@")
         .append(sshScheme.getSshdHost())
         .append(":hooks/commit-msg ")
-        .append(project)
+        .append(getBaseName(project))
         .append("/.git/hooks/")
         .toString();
   }
+
+  private String getBaseName(String project) {
+    int i = project.lastIndexOf('/');
+    if (i < 0) {
+      return project;
+    } else {
+      return project.substring(i + 1);
+    }
+  }
 }