Add new build util files for extracting info from and bundling plugins

Change-Id: I7eb3c1ed8aae0479e5cfcd27ed93fc40c05d7d3f
Reviewed-on: http://gerrit.dmdirc.com/2148
Automatic-Compile: DMDirc Build Manager
Reviewed-by: Shane Mc Cormack <shane@dmdirc.com>

build-configutils.xml

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project basedir=".">
+
+    <macrodef name="readdomain">
+        <attribute name="contents"/>
+        <attribute name="domain"/>
+        <attribute name="outputproperty"/>
+
+        <sequential>
+            <local name="extracted"/>
+
+            <!-- Extract the entire domain contents -->
+            <propertyregex property="extracted" override="true" input="@{contents}" select="\1" defaultvalue="">
+                <regexp pattern="(?si)^.*\n\Q@{domain}\E:\n(.*?)(\n[^\n]+:\n|$)"/>
+            </propertyregex>
+
+            <!-- Trim leading whitespace -->
+            <propertyregex property="@{outputproperty}" override="true" input="${extracted}" replace="" global="true">
+                <regexp pattern="(?m)^\s+"/>
+            </propertyregex>
+        </sequential>
+    </macrodef>
+
+    <macrodef name="readvalue">
+       <attribute name="domaincontents"/>
+       <attribute name="setting"/>
+       <attribute name="outputproperty"/>
+
+       <sequential>
+            <local name="extracted"/>
+
+            <!-- Extract the raw value -->
+            <propertyregex property="extracted" override="true" input="@{domaincontents}" select="\1">
+                <regexp pattern="(?mi)^\s*\Q@{setting}\E\s*=\s*(.*?)$"/>
+            </propertyregex>
+
+            <!-- Unescape \r, \n, \=, \#, \: and \\ -->
+            <propertyregex property="extracted" override="true" input="${extracted}" defaultvalue="${extracted}" regexp="\\n" replace="\n" global="true"/>
+            <propertyregex property="extracted" override="true" input="${extracted}" defaultvalue="${extracted}" regexp="\\r" replace="\r" global="true"/>
+            <propertyregex property="extracted" override="true" input="${extracted}" defaultvalue="${extracted}" regexp="\\=" replace="=" global="true"/>
+            <propertyregex property="extracted" override="true" input="${extracted}" defaultvalue="${extracted}" regexp="\\#" replace="#" global="true"/>
+            <propertyregex property="extracted" override="true" input="${extracted}" defaultvalue="${extracted}" regexp="\\:" replace=":" global="true"/>
+            <propertyregex property="@{outputproperty}" override="true" input="${extracted}" defaultvalue="${extracted}" regexp="\\\\" replace="\" global="true"/>
+       </sequential>
+    </macrodef>
+
+</project>

build-pluginutils.xml

@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project basedir=".">
+
+    <import file="build-configutils.xml"/>
+
+    <macrodef name="getplugininfo">
+        <attribute name="file"/>
+        <attribute name="prefix" default=""/>
+
+        <sequential>
+            <local name="filecontents"/>
+            <local name="domain.version"/>
+            <local name="domain.updates"/>
+            <local name="domain.metadata"/>
+            <local name="temp.dir"/>
+
+            <!-- Extract the plugin.config file -->
+            <tempfile property="temp.dir" destdir="${java.io.tmpdir}" prefix="plugintmp"/>
+            <mkdir dir="${temp.dir}"/>
+            <unzip src="@{file}" dest="${temp.dir}">
+                <patternset>
+                    <include name="META-INF/plugin.config"/>
+                </patternset>
+            </unzip>
+
+            <!-- Read the contents and tidy up -->
+            <loadfile srcfile="${temp.dir}/META-INF/plugin.config" property="filecontents"/>
+            <delete dir="${temp.dir}"/>
+
+            <readdomain contents="${filecontents}" domain="version" outputproperty="domain.version"/>
+            <readdomain contents="${filecontents}" domain="updates" outputproperty="domain.updates"/>
+            <readdomain contents="${filecontents}" domain="metadata" outputproperty="domain.metadata"/>
+
+            <readvalue domaincontents="${domain.version}" setting="number" outputproperty="@{prefix}version"/>
+            <readvalue domaincontents="${domain.updates}" setting="id" outputproperty="@{prefix}id"/>
+            <readvalue domaincontents="${domain.metadata}" setting="name" outputproperty="@{prefix}name"/>
+        </sequential>
+    </macrodef>
+
+    <macrodef name="bundleplugins">
+        <attribute name="jar"/>
+        <element name="plugins" implicit="yes"/>
+
+        <sequential>
+            <local name="temp.dir"/>
+
+            <!-- Extract the version.config file -->
+            <tempfile property="temp.dir" destdir="${java.io.tmpdir}" prefix="plugintmp"/>
+            <mkdir dir="${temp.dir}"/>
+            <unzip src="@{jar}" dest="${temp.dir}">
+                <patternset>
+                    <include name="com/dmdirc/version.config"/>
+                </patternset>
+            </unzip>
+
+            <!-- Make a directory to drop plugins in -->
+            <mkdir dir="${temp.dir}/plugins"/>
+
+            <!-- Output some boilerplate to the config -->
+            <echo file="${temp.dir}/com/dmdirc/version.config" append="true">
+keysections:
+    bundledplugins_versions
+
+bundledplugins_versions:
+</echo>
+            <for param="plugin">
+                <plugins/>
+                <sequential>
+                    <local name="plugin.version"/>
+                    <local name="plugin.id"/>
+                    <local name="plugin.name"/>
+
+                    <!-- Grab our plugin's info -->
+                    <getplugininfo prefix="plugin." file="@{plugin}"/>
+
+                    <!-- Add the information to our config -->
+                    <echo file="${temp.dir}/com/dmdirc/version.config" append="true">  ${plugin.name}=${plugin.version}</echo>
+                    <echo file="${temp.dir}/com/dmdirc/version.config" append="true"/>
+
+                    <!-- And drop the file in our directory -->
+                    <copy file="@{plugin}" todir="${temp.dir}/plugins" overwrite="true"/>
+
+                    <echo>Bundling plugin ${plugin.name} version ${plugin.version}</echo>
+                </sequential>
+            </for>
+
+            <!-- Now jar our new things back up -->
+            <jar destfile="@{jar}" basedir="${temp.dir}" update="true"/>
+
+            <delete dir="${temp.dir}"/>
+        </sequential>
+    </macrodef>
+
+</project>