Added install script, made existing RedHat init script also work with Ubuntu

contrib/redhat/gitbucket.init

@@ -1,6 +1,7 @@
 #!/bin/bash
 #
-# /etc/rc.d/init.d/gitbucket
+# RedHat: /etc/rc.d/init.d/gitbucket
+# Ubuntu: /etc/init.d/gitbucket
 #
 # Starts the GitBucket server
 #
@@ -8,28 +9,41 @@
 # description: Run GitBucket server
 # processname: java
 
-# Source function library
-. /etc/rc.d/init.d/functions
+[ -f /etc/rc.d/init.d/functions ] && source /etc/rc.d/init.d/functions
 
 # Default values
 GITBUCKET_HOME=/var/lib/gitbucket
 GITBUCKET_WAR_FILE=/usr/share/gitbucket/lib/gitbucket.war
 
 # Pull in cq settings
-[ -f /etc/sysconfig/gitbucket ] && . /etc/sysconfig/gitbucket
+[ -f /etc/sysconfig/gitbucket ] && source /etc/sysconfig/gitbucket
+[ -f $GITBUCKET_DIR/gitbucket.conf ] && source $GITBUCKET_DIR/gitbucket.conf  # added for non-redhat systems
 
 # Location of the log and PID file
-LOG_FILE=/var/log/gitbucket/run.log
+LOG_FILE=$GITBUCKET_LOG_DIR/run.log
 PID_FILE=/var/run/gitbucket.pid
 
 # Default return value
 RETVAL=0
 
+RED='\033[1m\E[37;41m'
+GREEN='\033[1m\E[37;42m'
+OFF='\E[0m'
+
+if [ -z "$(which success)" ]; then
+	function success {
+	  printf "%b\n" "$GREEN $* $OFF"
+  }
+fi
+if [ -z "$(which failure)" ]; then
+	function failure {
+	  printf "%b\n" "$RED $* $OFF"
+  }
+fi
 
 start() {
 	echo -n $"Starting GitBucket server: "
 
-	# Compile statup parameters
 	if [ $GITBUCKET_PORT ]; then
 		START_OPTS="${START_OPTS} --port=${GITBUCKET_PORT}"
 	fi
@@ -40,17 +54,15 @@ start() {
 		START_OPTS="${START_OPTS} --host=${GITBUCKET_HOST}"
 	fi
 
-	# Run the Java process
 	GITBUCKET_HOME="${GITBUCKET_HOME}" java $GITBUCKET_JVM_OPTS -jar $GITBUCKET_WAR_FILE $START_OPTS >>$LOG_FILE 2>&1 &
 	RETVAL=$?
 
-	# Store PID of the Java process into a file
 	echo $! > $PID_FILE
 
 	if [ $RETVAL -eq 0 ] ; then
-		success "GitBucket startup"
+		success "Success"
 	else
-		failure "GitBucket startup"
+		failure "Exit code $RETVAL"
 	fi
 
 	echo