Git/Gerrit: Added helpoer script for gerrit

Change-Id: Ib39efabf88a82534c69a29181fbe7de82cf669a7

after-first-checkout.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+#
+# Prepare freshly cloned git repo for use with gerrit
+
+## Configure me (if you like..)
+SHORT=formaster
+GITURL=$(git config --get remote.origin.url)
+SSHURL=$(echo "$GITURL"|sed -r 's%^ssh://([^:]+):[^:]+$%\1%')
+PORT=$(echo "$GITURL"|sed -r 's%^.+:([0-9]+)/.*$%\1%')
+##
+
+CONFIG=.git/config
+HOOKDIR=.git/hooks
+
+# Setup shortcut for pushing chagesets: e.g., git push formaster
+if grep -q $SHORT $CONFIG; then
+    echo -e "\E[32m:) Shortcut \E[33m$SHORT \E[32malready set."
+else
+    echo -e "\E[32mSetting up \E[33m$SHORT \E[32mshortcut in \E[33m$CONFIG"
+    echo -e  "[remote \"$SHORT\"]\n\turl = $GITURL\n\tpush = HEAD:refs/for/master" >> $CONFIG
+fi
+
+# Install commit hook setting gerrit change id
+if [ -f $HOOKDIR/commit-msg ]
+then
+    echo -e "\E[32m:) Customized commit message already installed."
+    if grep -q "Change-Id:" $HOOKDIR/commit-msg
+    then
+        echo -e ":) Commit message seems to support Change-Ids."
+    else
+        echo -e "\E[31m:( Nothing about \E[33mChange-Id \E[31min \E[33m$HOOKDIR/commit-msg"
+    fi
+else
+    echo -e "\E[32m:) Downloading commit message from $SSHURL.\E[37m"
+    if ! scp -p -P $PORT "$SSHURL:hooks/commit-msg" .git/hooks; then
+        echo -e "\E[31m:( Could not load \E[33mcommit-msg \E[31m"
+        echo -e "\E[37mTry manually: \E[33mscp -p -P $PORT $SSHURL:hooks/commit-msg $CONFIG"
+    fi
+fi
+
+echo -e "\E[37mdone."