Allowing custom import.

INSTALL.md

@@ -2,7 +2,7 @@
 
 * System requirements
 * [Creating a new project with BLT](#creating-new)
-* [Adding BLT to and existing project](#existing-project)
+* [Adding BLT to an existing project](#existing-project)
 * [Updating to the latest version of BLT](#updating)
   * [Updating from a non-composer-managed version](#update-non-composered)
   * [Updating a composer-managed version](#update-composered)

phing/build.xml

@@ -53,7 +53,17 @@
   <!-- Contains Drupal VM tasks. -->
   <import file="${phing.dir}/tasks/vm.xml"/>
 
-  <!--@todo Import custom phing files, if they exist.-->
+  <!-- Allow custom file to be imported. -->
+  <if>
+    <isset property="import" />
+    <then>
+      <echo>Importing custom Phing file ${import}.</echo>
+      <import file="${import}"/>
+    </then>
+    <else>
+      <echo>No custom Phing file specified.</echo>
+    </else>
+  </if>
 
   <target name="list" hidden="true">
     <exec dir="${blt.root}" command="${repo.root}/vendor/bin/phing -f ${phing.dir}/build.xml -q -l" passthru="true"/>

phing/tasks/properties.xml

@@ -36,7 +36,6 @@
 
   <echo>Executing commands against multisite "${multisite.name}"</echo>
 
-
   <!-- Default drush alias. -->
   <property name="drush.default_alias" value="self" override="false" logoutput="false"/>
   <property name="drush.alias" value="${drush.default_alias}" override="false" logoutput="false"/>

template/project.yml

@@ -58,7 +58,7 @@ target-hooks:
     command: npm run install-libraries
 
 # Define any custom Phing files that you'd like to import. E.g., ${repo.root}/blt/phing/build.xml
-imports: []
+import: ~
 
 # Hosting environment flags.
 # Examples: acsf (Acquia Cloud Site Factory), ac (Acquia Cloud)