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data class SnippetData(
val file: File,
val lineNumber: Int,
val content: String,
var tempDir: File? = null
)
fun findSnippets(dirs: List<String>): List<SnippetData> {
val snippets = mutableListOf<SnippetData>()
dirs.forEach { dirName ->
val dir = rootProject
.projectDir
.parentFile
.resolve(dirName)
.listFiles()?.let {
it.filter { it.name.endsWith(".md") }
.forEach { file ->
val currentSnippet = kotlin.text.StringBuilder()
var snippetStart = 0
var lineNumber = 0
file.forEachLine { line ->
lineNumber++
if (line == "```kotlin")
snippetStart = lineNumber + 1
else if (line == "```" && snippetStart != 0) {
snippets.add(SnippetData(file, snippetStart, currentSnippet.toString()))
snippetStart = 0
currentSnippet.clear()
} else {
if (snippetStart != 0) {
currentSnippet.appendLine(line)
}
}
}
}
}
}
return snippets
}
fun cloneTemplate(template: String, index: Int, content: String): File {
val tempDir = file("${project.buildDir.absolutePath}/temp/cloned-$index")
tempDir.deleteRecursively()
tempDir.mkdirs()
file("${projectDir.parentFile.parentFile.absolutePath}/templates/$template").copyRecursively(tempDir)
// tempDir.deleteOnExit()
File("$tempDir/src/main/kotlin/main.kt").printWriter().use { out ->
out.println(content)
}
return tempDir
}
val ignoreTill = java.time.LocalDate.parse("2022-02-01")
fun isIgnored(tutorial: String): Boolean {
if (java.time.LocalDate.now() > ignoreTill) return false
return when (tutorial) {
"IGNORED" -> true
else -> false
}
}
fun maybeFail(tutorial: String, message: String) {
if (!isIgnored(tutorial)) {
throw GradleException(message)
} else {
println("IGNORED ERROR: $message")
}
}
@OptIn(ExperimentalStdlibApi::class)
fun checkDirs(dirs: List<String>, template: String, buildCmd: String = "build") {
val snippets = findSnippets(dirs)
snippets.forEachIndexed { index, snippet ->
println("process snippet $index at ${snippet.file}:${snippet.lineNumber} with $template")
snippet.tempDir = cloneTemplate(template, index, snippet.content)
val isWin = System.getProperty("os.name").startsWith("Win")
val args = buildList {
if (isWin) {
add("gradlew.bat")
} else {
add("bash")
add("./gradlew")
}
add(buildCmd)
project.findProperty("kotlin.version")?.also {
add("-Pkotlin.version=$it")
}
project.findProperty("compose.version")?.also {
add("-Pcompose.version=$it")
}
}
val proc = ProcessBuilder(*args.toTypedArray())
.directory(snippet.tempDir)
.redirectOutput(ProcessBuilder.Redirect.PIPE)
.redirectError(ProcessBuilder.Redirect.PIPE)
.start()
proc.waitFor(5, TimeUnit.MINUTES)
if (proc.exitValue() != 0) {
println(proc.inputStream.bufferedReader().readText())
println(proc.errorStream.bufferedReader().readText())
maybeFail(snippet.file.parentFile.name, "Error in snippet at ${snippet.file}:${snippet.lineNumber}")
}
}
}
// NOTICE: currently we use a bit hacky approach, when "```kotlin" marks code that shall be checked, while "``` kotlin"
// with whitespace marks code that shall not be checked.
tasks.register("check") {
val checks = CheckSpec.createCheckSpecs(
checkTargets = (project.property("CHECK_TARGET")?.toString() ?: "all").toLowerCase()
)
doLast {
for (check in checks) {
val subdirs = project
.projectDir
.parentFile
.resolve(check.dir)
.listFiles()
.filter {
it.isDirectory && it.name[0].isUpperCase()
}
.map { it.name }
checkDirs(
dirs = subdirs.map { "${check.dir}/$it" },
template = check.template,
buildCmd = check.gradleCmd
)
}
}
}
data class CheckSpec(
val gradleCmd: String,
val dir: String,
val template: String
) {
companion object {
fun desktop() = CheckSpec(gradleCmd = "build", dir = ".", template = "desktop-template")
fun web() = CheckSpec(gradleCmd = "compileKotlinJs", dir = "Web", template = "web-template")
fun all() = listOf(desktop(), web())
fun createCheckSpecs(checkTargets: String = "all"): List<CheckSpec> {
return when (checkTargets) {
"web" -> listOf(web())
"desktop" -> listOf(desktop())
else -> all()
}
}
}
}