1 files changed, 74 insertions, 0 deletions

diff --git a/artifacts.gradle b/artifacts.gradle
index 6db3cfb..12dd3fa 100644
--- a/artifacts.gradle
+++ b/artifacts.gradle
@@ -1,3 +1,5 @@
+import groovy.xml.MarkupBuilder
+
 apply plugin: 'com.github.dcendents.android-maven'
 
 // build a jar with source files
@@ -22,4 +24,76 @@ task javadocJar(type: Jar, dependsOn: javadoc) {
 artifacts {
     archives sourcesJar
     archives javadocJar
+}
+
+// Task to generate our public.xml file
+// See https://developer.android.com/studio/projects/android-library.html#PrivateResources
+// We assume resources within res-public are public
+task generatepublicxml {
+
+    def resDir = project.projectDir.absolutePath + "/src/main/res-public"
+
+    def publicFolder = file(resDir + "/values")
+    if (!publicFolder.exists()) publicFolder.mkdirs()
+
+    // Include the desired res types
+    // Note: we don't need the qualified resource directories,
+    // since those resources will already be defined in the unqualified directories
+    // however, there are special cases like transition-v21 that is only available on lollipop and up
+    def tree = fileTree(dir: resDir,
+            includes: ['**/anim/*.xml',
+                       '**/color/*.xml',
+                       '**/drawable/*.xml',
+                       '**/layout/*.xml',
+                       '**/transition-v21/*.xml',
+                       '**/values/*.xml'
+            ],
+            exclude: '**/public.xml'
+    );
+
+    // Create new public.xml with writer
+    new File(resDir + "/values/public.xml").withWriter { writer ->
+        // Create MarkupBuilder with 4 space indent
+        def destXml = new MarkupBuilder(new IndentPrinter(writer, "    ", true));
+        def destXmlMkp = destXml.getMkp();
+
+        // GIST NOTE: our project needed the ResourceName suppression, but its not needed in general
+        destXml.resources(
+                'xmlns:tools': 'http://schemas.android.com/tools',
+                'tools:ignore': 'ResourceName'
+        ) {
+            // Leave file comment
+            destXmlMkp.yield "\r\n"
+            destXmlMkp.comment("AUTO-GENERATED FILE.  DO NOT MODIFY. public.xml is generated by the generatepublicxml gradle task")
+
+            if (tree.isEmpty())
+                "public"("name": "dummy", "type": "id")
+            else
+                tree.each { resFile ->
+
+                    // use the directory name to get the type
+                    def type = resFile.getParentFile().getName()
+
+                    if (type == "values") {
+                        // Resource files under values. Parse the file, and pull out the resource definitions
+                        def parsePublicResources = new XmlParser().parse(resFile)
+                        parsePublicResources.children().each {
+
+                            // Type is usually the element, but sometimes a type attribute is present
+                            // example: <item name="line_spacing_multiplier" format="float" type="dimen">1.4</item>
+                            type = it.name()
+                            if (it.@type) {
+                                type = it.@type
+                            }
+
+                            // it.@name is value in name=
+                            "public"("name": it.@name, "type": type)
+                        }
+                    } else {
+                        // Drawable, layout, etc files
+                        "public"("name": resFile.getName().tokenize('.')[0], "type": type.tokenize('-')[0])
+                    }
+                }
+        }
+    }
 }
\ No newline at end of file