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Merge pull request #1 from dos65/scalafix-command-native
Scalafix command native
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modules/build/src/main/scala/scala/build/ScalafixArtifacts.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,151 @@ | ||
| package scala.build | ||
|
|
||
| import coursier.cache.FileCache | ||
| import coursier.core.{Repository, Version} | ||
| import coursier.util.Task | ||
| import dependency.* | ||
|
|
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| import scala.build.EitherCps.{either, value} | ||
| import scala.build.errors.BuildException | ||
| import scala.build.internal.CsLoggerUtil.* | ||
| import scala.build.internal.Constants | ||
| import java.util.Properties | ||
| import coursier.error.CoursierError | ||
| import scala.build.errors.FetchingDependenciesError | ||
| import coursier.error.ResolutionError | ||
| import org.apache.commons.compress.archivers.zip.ZipFile | ||
| import os.Path | ||
| import java.io.ByteArrayInputStream | ||
|
|
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| final case class ScalafixArtifacts( | ||
| scalafixJars: Seq[os.Path], | ||
| toolsJars: Seq[os.Path] | ||
| ) | ||
|
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| object ScalafixArtifacts { | ||
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| def artifacts( | ||
| scalaVersion: String, | ||
| compileOnlyDeps: Seq[Dependency], | ||
| extraRepositories: Seq[Repository], | ||
| logger: Logger, | ||
| cache: FileCache[Task] | ||
| ): Either[BuildException, ScalafixArtifacts] = | ||
| either { | ||
| val scalafixProperties = | ||
| value(fetchOrLoadScalafixProperties(extraRepositories, logger, cache)) | ||
| val key = | ||
| value(scalafixPropsKey(scalaVersion)) | ||
| val fetchScalaVersion = scalafixProperties.getProperty(key) | ||
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| val scalafixDeps = | ||
| Seq(dep"ch.epfl.scala:scalafix-cli_$fetchScalaVersion:${Constants.scalafixVersion}") | ||
| val scalafix = | ||
| value( | ||
| Artifacts.artifacts( | ||
| scalafixDeps.map(Positioned.none), | ||
| extraRepositories, | ||
| None, | ||
| logger, | ||
| cache.withMessage(s"Downloading scalafix-cli ${Constants.scalafixVersion}") | ||
| ) | ||
| ) | ||
|
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| val tools = | ||
| value( | ||
| Artifacts.artifacts( | ||
| compileOnlyDeps.map(Positioned.none), | ||
| extraRepositories, | ||
| None, | ||
| logger, | ||
| cache.withMessage(s"Downloading tools classpath for scalafix") | ||
| ) | ||
| ) | ||
| ScalafixArtifacts(scalafix.map(_._2), tools.map(_._2)) | ||
| } | ||
|
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| private def fetchOrLoadScalafixProperties( | ||
| extraRepositories: Seq[Repository], | ||
| logger: Logger, | ||
| cache: FileCache[Task] | ||
| ): Either[BuildException, Properties] = | ||
| either { | ||
| val cacheDir = Directories.directories.cacheDir / "scalafix-props-cache" | ||
| val cachePath = cacheDir / s"scalafix-interfaces-${Constants.scalafixVersion}.properties" | ||
|
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| val content = | ||
| if (!os.exists(cachePath)) { | ||
| val interfacesJar = value(fetchScalafixInterfaces(extraRepositories, logger, cache)) | ||
| val propsData = value(readScalafixProperties(interfacesJar)) | ||
| if (!os.exists(cacheDir)) os.makeDir(cacheDir) | ||
| os.write(cachePath, propsData) | ||
| propsData | ||
| } | ||
| else os.read(cachePath) | ||
|
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| val props = new Properties() | ||
| val stream = new ByteArrayInputStream(content.getBytes()) | ||
| props.load(stream) | ||
| props | ||
| } | ||
|
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| private def fetchScalafixInterfaces( | ||
| extraRepositories: Seq[Repository], | ||
| logger: Logger, | ||
| cache: FileCache[Task] | ||
| ): Either[BuildException, Path] = | ||
| either { | ||
| val scalafixInterfaces = dep"ch.epfl.scala:scalafix-interfaces:${Constants.scalafixVersion}" | ||
|
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| val fetchResult = | ||
| value( | ||
| Artifacts.artifacts( | ||
| List(scalafixInterfaces).map(Positioned.none), | ||
| extraRepositories, | ||
| None, | ||
| logger, | ||
| cache.withMessage(s"Downloading scalafix-interfaces ${scalafixInterfaces.version}") | ||
| ) | ||
| ) | ||
|
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| val expectedJarName = s"scalafix-interfaces-${Constants.scalafixVersion}.jar" | ||
| val interfacesJar = fetchResult.collectFirst { | ||
| case (_, path) if path.last == expectedJarName => path | ||
| } | ||
|
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| value( | ||
| interfacesJar.toRight(new BuildException("Failed to found scalafix-interfaces jar") {}) | ||
| ) | ||
| } | ||
|
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| private def readScalafixProperties(jar: Path): Either[BuildException, String] = { | ||
| import scala.jdk.CollectionConverters.* | ||
| val zipFile = new ZipFile(jar.toNIO) | ||
| val entry = zipFile.getEntries().asScala.find(entry => | ||
| entry.getName() == "scalafix-interfaces.properties" | ||
| ) | ||
| val out = | ||
| entry.toRight(new BuildException("Failed to found scalafix properties") {}) | ||
| .map { entry => | ||
| val stream = zipFile.getInputStream(entry) | ||
| val bytes = stream.readAllBytes() | ||
| new String(bytes) | ||
| } | ||
| zipFile.close() | ||
| out | ||
| } | ||
|
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| private def scalafixPropsKey(scalaVersion: String): Either[BuildException, String] = { | ||
| val regex = "(\\d)\\.(\\d+).+".r | ||
| scalaVersion match { | ||
| case regex("2", "12") => Right("scala212") | ||
| case regex("2", "13") => Right("scala213") | ||
| case regex("3", x) if x.toInt <= 3 => Right("scala3LTS") | ||
| case regex("3", _) => Right("scala3Next") | ||
| case _ => | ||
| Left(new BuildException(s"Scalafix is not supported for Scala version: $scalaVersion") {}) | ||
| } | ||
|
|
||
| } | ||
|
|
||
| } |
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