[geedeecee] add fileChecksum util

gradle-plugins/docker-compose/src/main/kotlin/dev/adamko/geedeecee/internal/files.kt

@@ -0,0 +1,12 @@
+package dev.adamko.geedeecee.internal
+
+import org.gradle.api.file.Directory
+import org.jetbrains.kotlin.incremental.md5
+
+// should be moved to common plugins lib
+
+internal fun Directory.filesChecksum(): Long = asFileTree
+  .files
+  .map { it.readBytes() + it.absolutePath.toByteArray() }
+  .fold(byteArrayOf()) { acc, bytes -> acc + bytes }
+  .md5()

gradle-plugins/docker-compose/src/main/kotlin/dev/adamko/geedeecee/internal/gradle.kt

@@ -0,0 +1,14 @@
+package dev.adamko.geedeecee.internal
+
+import org.gradle.api.Task
+import org.gradle.api.file.FileCopyDetails
+import org.gradle.api.file.RelativePath
+
+// move to common-lib
+
+internal inline fun <reified T : Task> T.enabledIf(crossinline spec: (T) -> Boolean) {
+  onlyIf {
+    require(it is T)
+    spec(it)
+  }
+}

gradle-plugins/docker-compose/src/main/kotlin/dev/adamko/geedeecee/tasks/DockerContextFilesPreparation.kt

@@ -0,0 +1,56 @@
+package dev.adamko.geedeecee.tasks
+
+import dev.adamko.geedeecee.GDCPlugin
+import javax.inject.Inject
+import org.gradle.api.tasks.Sync
+
+
+// look into using 'build context' for up-to-date check
+// https://stackoverflow.com/questions/38946683/how-to-test-dockerignore-file
+// https://github.com/pwaller/docker-show-context
+// https://snippets.khromov.se/see-which-files-are-included-in-your-docker-build-context/
+
+
+//@CacheableTask
+//@Suppress("UnstableApiUsage")
+abstract class DockerContextFilesPreparation @Inject constructor(
+//  private val files: FileSystemOperations,
+) : Sync() {
+
+//  @get:InputFiles
+////  @get:SkipWhenEmpty
+//  @get:PathSensitive(PathSensitivity.RELATIVE)
+//  @get:NormalizeLineEndings
+//  abstract val dockerContextFiles: ConfigurableFileCollection
+
+//  @get:Input
+//  abstract val copySpec: Property<CopySpec>
+//
+//  @get:OutputDirectory
+//  abstract val dockerContextDir: DirectoryProperty
+
+  init {
+    group = GDCPlugin.GCD_TASK_GROUP
+  }
+
+//  @TaskAction
+//  fun exec() {
+//    files.sync {
+//      from(dockerContextFiles, copySpec)
+//      into(dockerContextDir)
+////      with(copySpec)
+//    }
+//  }
+
+//  /** @see [CopySpec.from] */
+//  override fun from(vararg sourcePaths: Any?): CopySpec =
+//    copySpec.from(sourcePaths)
+//
+//  /** @see [CopySpec.from] */
+//  override fun from(sourcePath: Any, configureClosure: Closure<*>): CopySpec =
+//    copySpec.from(sourcePath, configureClosure)
+//
+//  /** @see [CopySpec.from] */
+//  override fun from(sourcePath: Any, configureAction: Action<in CopySpec>): CopySpec =
+//    copySpec.from(sourcePath, configureAction)
+}