feat(build): pull out Crowdin tasks to their own classes

2 files changed, 101 insertions, 0 deletions

diff --git a/build-logic/src/main/kotlin/app/passwordstore/gradle/crowdin/BuildOnApiTask.kt b/build-logic/src/main/kotlin/app/passwordstore/gradle/crowdin/BuildOnApiTask.kt
new file mode 100644
index 00000000..070ec2e9
--- /dev/null
+++ b/build-logic/src/main/kotlin/app/passwordstore/gradle/crowdin/BuildOnApiTask.kt
@@ -0,0 +1,40 @@
+package app.passwordstore.gradle.crowdin
+
+import java.util.concurrent.TimeUnit
+import okhttp3.OkHttpClient
+import okhttp3.Request
+import org.gradle.api.DefaultTask
+import org.gradle.api.provider.Property
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.Internal
+import org.gradle.api.tasks.TaskAction
+import org.gradle.work.DisableCachingByDefault
+
+@DisableCachingByDefault(because = "This calls into a remote API and has nothing to cache")
+abstract class BuildOnApiTask : DefaultTask() {
+
+  @get:Input abstract val crowdinIdentifier: Property<String>
+  @get:Internal abstract val crowdinLogin: Property<String>
+  @get:Internal abstract val crowdinKey: Property<String>
+
+  @TaskAction
+  fun doWork() {
+    val client =
+      OkHttpClient.Builder()
+        .connectTimeout(5, TimeUnit.MINUTES)
+        .writeTimeout(5, TimeUnit.MINUTES)
+        .readTimeout(5, TimeUnit.MINUTES)
+        .callTimeout(10, TimeUnit.MINUTES)
+        .build()
+    val url =
+      CROWDIN_BUILD_API_URL.format(crowdinIdentifier.get(), crowdinLogin.get(), crowdinKey.get())
+    val request = Request.Builder().url(url).get().build()
+    client.newCall(request).execute().close()
+  }
+
+  private companion object {
+
+    private const val CROWDIN_BUILD_API_URL =
+      "https://api.crowdin.com/api/project/%s/export?login=%s&account-key=%s"
+  }
+}
diff --git a/build-logic/src/main/kotlin/app/passwordstore/gradle/crowdin/StringCleanupTask.kt b/build-logic/src/main/kotlin/app/passwordstore/gradle/crowdin/StringCleanupTask.kt
new file mode 100644
index 00000000..daa38134
--- /dev/null
+++ b/build-logic/src/main/kotlin/app/passwordstore/gradle/crowdin/StringCleanupTask.kt
@@ -0,0 +1,61 @@
+package app.passwordstore.gradle.crowdin
+
+import java.io.File
+import javax.xml.parsers.DocumentBuilderFactory
+import org.gradle.api.DefaultTask
+import org.gradle.api.GradleException
+import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.tasks.InputDirectory
+import org.gradle.api.tasks.TaskAction
+import org.gradle.work.DisableCachingByDefault
+import org.w3c.dom.Document
+
+@DisableCachingByDefault(because = "The task runs quickly and has complicated semantics")
+abstract class StringCleanupTask : DefaultTask() {
+
+  @get:InputDirectory abstract val sourceDirectory: DirectoryProperty
+
+  @TaskAction
+  fun clean() {
+    val sourceSets = arrayOf("main", "nonFree")
+    for (sourceSet in sourceSets) {
+      val fileTreeWalk = sourceDirectory.dir("$sourceSet/res").get().asFile.walkTopDown()
+      val valuesDirectories =
+        fileTreeWalk.filter { it.isDirectory }.filter { it.name.startsWith("values") }
+      val stringFiles = fileTreeWalk.filter { it.name == "strings.xml" }
+      val sourceFile =
+        stringFiles.firstOrNull { it.path.endsWith("values/strings.xml") }
+          ?: throw GradleException("No root strings.xml found in '$sourceSet' sourceSet")
+      val sourceDoc = parseDocument(sourceFile)
+      val baselineStringCount = countStrings(sourceDoc)
+      val threshold = 0.80 * baselineStringCount
+      stringFiles.forEach { file ->
+        if (file != sourceFile) {
+          val doc = parseDocument(file)
+          val stringCount = countStrings(doc)
+          if (stringCount < threshold) {
+            file.delete()
+          }
+        }
+      }
+      valuesDirectories.forEach { dir ->
+        if (dir.listFiles().isNullOrEmpty()) {
+          dir.delete()
+        }
+      }
+    }
+  }
+
+  private fun parseDocument(file: File): Document {
+    val dbFactory = DocumentBuilderFactory.newInstance()
+    val documentBuilder = dbFactory.newDocumentBuilder()
+    return documentBuilder.parse(file)
+  }
+
+  private fun countStrings(document: Document): Int {
+    // Normalization is beneficial for us
+    // https://stackoverflow.com/questions/13786607/normalization-in-dom-parsing-with-java-how-does-it-work
+    document.documentElement.normalize()
+    return document.getElementsByTagName("string").length
+  }
+}