add spotless for kotlin files

.circleci/config.yml

@@ -39,4 +39,4 @@ jobs:
           key: v1-dependencies-{{ checksum "build.gradle" }}
 
       # run tests!
-      - run: ./gradlew test
+      - run: ./gradlew spotlessCheck test

artifactfinder/src/main/kotlin/com/birbit/artifactfinder/ArtifactFinder.kt

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2019 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.birbit.artifactfinder
 
 import com.birbit.artifactfinder.maven.MavenFetcher
@@ -10,10 +26,10 @@ import com.birbit.artifactfinder.parser.Jar
 import com.birbit.artifactfinder.vo.Artifactory
 import com.birbit.artifactfinder.vo.Artifactory.GOOGLE
 import com.birbit.artifactfinder.worker.distributeJobs
+import java.io.File
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.flow
 import kotlinx.coroutines.withContext
-import java.io.File
 
 class ArtifactFinder(
     private val db: File
@@ -134,4 +150,4 @@ class ArtifactFinder(
         }
         model.sync()
     }
-}
+}

artifactfinder/src/main/kotlin/com/birbit/artifactfinder/ExternalSources.kt

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2019 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.birbit.artifactfinder
 
 import com.birbit.artifactfinder.vo.Artifactory.MAVEN
@@ -46,4 +62,4 @@ val EXTERNAL_SOURCES = FetcherSource(
         )
     ) + RETROFIT
 
-)
+)

artifactfinder/src/main/kotlin/com/birbit/artifactfinder/FetcherSource.kt

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2019 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.birbit.artifactfinder
 
 import com.birbit.artifactfinder.vo.Artifactory

artifactfinder/src/main/kotlin/com/birbit/artifactfinder/Main.kt

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2019 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.birbit.artifactfinder
 
 import java.io.File
@@ -6,8 +22,7 @@ import java.nio.channels.FileChannel
 import java.nio.file.StandardOpenOption
 import java.util.Locale
 
-
-internal enum class Action(vararg val names:String) {
+internal enum class Action(vararg val names: String) {
     TRAVERSE_GMAVEN("gmaven"),
     DOWNLOAD_ARTIFACTS("download"),
     TRAVERSE_EXTERNAL("external")
@@ -35,9 +50,9 @@ private fun usage(args: Array<out String>, exception: Throwable?) {
     System.exit(1)
 }
 
-private fun parseArgs(args: Array<out String>) : CmdlineArgs {
-    var action : Action? = null
-    var db : File? = null
+private fun parseArgs(args: Array<out String>): CmdlineArgs {
+    var action: Action? = null
+    var db: File? = null
     repeat(args.size / 2) {
         val type = args[it * 2]
         val value = args[it * 2 + 1]
@@ -81,19 +96,19 @@ private fun parseArgs(args: Array<out String>) : CmdlineArgs {
 suspend fun main(vararg args: String) {
     val cmd = try {
         parseArgs(args)
-    } catch (e:Throwable) {
+    } catch (e: Throwable) {
         usage(args, e)
         null
     } ?: return
     println(cmd)
     try {
         ensureSingleton()
-        when(cmd.action) {
+        when (cmd.action) {
             Action.TRAVERSE_GMAVEN -> ArtifactFinder(cmd.db).indexGMaven()
             Action.TRAVERSE_EXTERNAL -> ArtifactFinder(cmd.db).indexExternalArtifacts()
             Action.DOWNLOAD_ARTIFACTS -> ArtifactFinder(cmd.db).fetchArtifacts()
         }
-    } catch (ex : Throwable) {
+    } catch (ex: Throwable) {
         ex.printStackTrace()
         System.exit(1)
     }

artifactfinder/src/main/kotlin/com/birbit/artifactfinder/VersionSelector.kt

@@ -1,8 +1,23 @@
+/*
+ * Copyright 2019 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.birbit.artifactfinder
 
 import com.birbit.artifactfinder.model.Version
 
-
 object VersionSelector {
     /**
      * Current version selection logic:
@@ -91,4 +106,4 @@ private class Counters {
         val LIMIT_BETA = 1
         val LIMIT_ALPHA = 1
     }
-}
+}

artifactfinder/src/main/kotlin/com/birbit/artifactfinder/worker/JobQueue.kt

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2019 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.birbit.artifactfinder.worker
 
 import kotlinx.coroutines.CancellationException
@@ -30,7 +46,7 @@ suspend fun <T : Any, R> distributeJobs(
     consumer = consumer
 )
 
-private fun log(msg:Any?) {
+private fun log(msg: Any?) {
     println("[JQ][${Thread.currentThread().name}]: $msg")
 }
 
@@ -52,8 +68,7 @@ suspend fun <T : Any, R> distributeJobs(
                     throw AbortFlowException()
                 }
             }
-        } catch (abort : AbortFlowException) {
-
+        } catch (abort: AbortFlowException) {
         } finally {
             distributionChannel.close()
             log("distributionChannel DONE")
@@ -75,7 +90,7 @@ suspend fun <T : Any, R> distributeJobs(
                     }
                 } catch (closed: ClosedReceiveChannelException) {
                     log("worker $workerId done")
-                } catch (th : Throwable) {
+                } catch (th: Throwable) {
                     log("worker has thrown exception ${th.message}")
                 }
             }
@@ -85,4 +100,4 @@ suspend fun <T : Any, R> distributeJobs(
     return@withContext results
 }
 
-private class AbortFlowException : CancellationException()
+private class AbortFlowException : CancellationException()

artifactfinder/src/test/kotlin/com/birbit/artifactfinder/PlaygroundTest.kt

@@ -1,17 +1,33 @@
+/*
+ * Copyright 2019 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.birbit.artifactfinder
 
 import com.birbit.artifactfinder.maven.MavenFetcher
 import com.birbit.artifactfinder.maven.vo.ArtifactType
-import com.birbit.artifactfinder.vo.Artifactory
 import com.birbit.artifactfinder.model.ArtifactFinderModel
 import com.birbit.artifactfinder.parser.Aar
 import com.birbit.artifactfinder.parser.CodeSourceParser
 import com.birbit.artifactfinder.parser.Jar
+import com.birbit.artifactfinder.vo.Artifactory
+import java.io.File
 import kotlinx.coroutines.runBlocking
 import org.junit.Test
 import org.junit.runner.RunWith
 import org.junit.runners.JUnit4
-import java.io.File
 
 @RunWith(JUnit4::class)
 class PlaygroundTest {
@@ -43,4 +59,4 @@ class PlaygroundTest {
         val src = CodeSourceParser.parse(codeSource)
         println(src)
     }
-}
+}

artifactfinder/src/test/kotlin/com/birbit/artifactfinder/VersionSelectorTest.kt

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2019 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.birbit.artifactfinder
 
 import com.birbit.artifactfinder.VersionSelector.selectVersions
@@ -141,7 +157,6 @@ class VersionSelectorTest {
         )
     }
 
-
     companion object {
         val V_1_0_0 = Version.fromString("1.0.0")!!
         val V_1_1_0 = Version.fromString("1.1.0")!!
@@ -153,6 +168,5 @@ class VersionSelectorTest {
         val V_1_1_0_beta02 = Version.fromString("1.1.0-beta02")!!
         val V_1_1_0_rc01 = Version.fromString("1.1.0-rc01")!!
         val V_1_1_0_rc02 = Version.fromString("1.1.0-rc02")!!
-
     }
-}
+}

build.gradle

@@ -3,6 +3,7 @@
 buildscript {
     ext.kotlin_version = '1.3.50'
     ext.ktor_version = "1.2.4"
+    ext.ktlint_version = '0.34.0'
     ext.libs = [
             junit                      : "junit:junit:4.12",
             truth                      : "com.google.truth:truth:1.0",
@@ -23,8 +24,6 @@ buildscript {
             xerial                     : 'org.xerial:sqlite-jdbc:3.28.0',
             ktor                       : "io.ktor:ktor-server-netty:$ktor_version",
             okHttpLogger               : "com.squareup.okhttp3:logging-interceptor:4.2.1"
-
-
     ]
     repositories {
         google()
@@ -47,13 +46,24 @@ buildscript {
     }
 }
 
+plugins {
+    id 'com.diffplug.gradle.spotless' version '3.25.0'
+}
+
 allprojects {
     repositories {
         google()
         jcenter()
     }
 }
 
-task clean(type: Delete) {
-    delete rootProject.buildDir
+subprojects {
+    apply plugin: 'com.diffplug.gradle.spotless'
+    spotless {
+        kotlin {
+            target 'src/**/*.kt'
+            ktlint(ktlint_version).userData(['disabled_rules':'no-wildcard-imports'])
+            licenseHeaderFile project.rootProject.file('scripts/copyright.kt')
+        }
+    }
 }

core/src/main/kotlin/com/birbit/artifactfinder/parser/vo/Info.kt

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2019 Google, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 package com.birbit.artifactfinder.parser.vo
 
 /**
@@ -38,4 +54,4 @@ data class ParsedMethodInfo(
 data class InnerClassInfo(
     val parent: ParsedClassInfo,
     val classInfo: ParsedClassInfo
-)
+)