Added a script to facilitate setting the proxy host and port and no proxy hosts, and then it concatenates all the java system properties for setting the java proxy configurations and puts the resulting string in an environment variable JAVA_PROXY_CONFIG, modified the scirpts gitblit, gitblit-ubuntu, and gitblit-centos to source the java-proxy-config.sh script and then include the resulting java proxy configuration in the java command

distrib/gitblit

@@ -5,7 +5,8 @@ set -e
 GITBLIT_PATH=/opt/gitblit
 GITBLIT_HTTP_PORT=0
 GITBLIT_HTTPS_PORT=8443
-JAVA="java -server -Xmx1024M -jar"
+source ${GITBLIT_PATH}/java-proxy-config.sh
+JAVA="java -server -Xmx1024M ${JAVA_PROXY_CONFIG} -Djava.awt.headless=true -jar"
 
 . /lib/lsb/init-functions
 

distrib/gitblit-centos

@@ -8,7 +8,8 @@
 GITBLIT_PATH=/opt/gitblit
 GITBLIT_HTTP_PORT=0
 GITBLIT_HTTPS_PORT=8443
-JAVA="java -server -Xmx1024M -jar"
+source ${GITBLIT_PATH}/java-proxy-config.sh
+JAVA="java -server -Xmx1024M ${JAVA_PROXY_CONFIG} -Djava.awt.headless=true -jar"
 
 RETVAL=0
 

distrib/gitblit-ubuntu

@@ -9,7 +9,8 @@ PATH=/sbin:/bin:/usr/bin:/usr/sbin
 # change theses values (default values)
 GITBLIT_PATH=/opt/gitblit
 GITBLIT_USER="gitblit"
-ARGS="-server -Xmx1024M -jar gitblit.jar"
+source ${GITBLIT_PATH}/java-proxy-config.sh
+ARGS="-server -Xmx1024M ${JAVA_PROXY_CONFIG} -Djava.awt.headless=true -jar gitblit.jar"
 
 RETVAL=0
 
@@ -43,4 +44,4 @@ case "$1" in
   ;;
 esac
 
-exit $RETVAL
+exit $RETVAL

distrib/java-proxy-config.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+
+# To set the proxy configuration, specify the following host name and port
+#PROXY_HOST=
+#PROXY_PORT=
+
+# To exclude any hosts from proxy configuration such that they directly accessed by Gitblit without passing through the proxy server, append the host name to the following variable using "|" as the separator
+NON_PROXY_HOSTS="localhost|127.0.0.*|*.local|192.168.*.*|10.193.*.*"
+
+### The following should not need to be modified
+
+JAVA_PROXY_CONFIG=""
+
+if [ -n "${PROXY_HOST}" -a -n "${PROXY_PORT}" ]; then
+
+    JAVA_PROXY_CONFIG=" -DproxySet=true -Dhttp.proxyHost=${PROXY_HOST} -Dhttp.proxyPort=${PROXY_PORT} -Dhttps.proxyHost=${PROXY_HOST} -Dhttps.proxyPort=${PROXY_PORT} -Dftp.proxyHost=${PROXY_HOST} -Dftp.proxyPort=${PROXY_PORT} "
+fi
+
+if [ -n "${PROXY_HOST}" -a -n "${PROXY_PORT}" -a -n "${NON_PROXY_HOSTS}" ]; then
+
+    JAVA_PROXY_CONFIG="${JAVA_PROXY_CONFIG} -Dhttp.nonProxyHosts=\"${NON_PROXY_HOSTS}\" -Dftp.nonProxyHosts=\"${NON_PROXY_HOSTS}\" "
+fi
+
+export JAVA_PROXY_CONFIG
+