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import sbt._
import sbt.complete._, Parser._, Parsers._
object PartestUtil {
private case class TestFiles(srcPath: String, globalBase: File, testBase: File) {
private val testCaseDir = new SimpleFileFilter(f => f.isDirectory && f.listFiles.nonEmpty && !(f.getParentFile / (f.name + ".res")).exists)
private val testCaseFilter = GlobFilter("*.scala") | GlobFilter("*.java") | GlobFilter("*.res") || testCaseDir
private def testCaseFinder = (testBase / srcPath).*(AllPassFilter).*(testCaseFilter)
private val basePaths = allTestCases.map(_._2.split('/').take(3).mkString("/") + "/").distinct
def allTestCases = testCaseFinder.pair(relativeTo(globalBase))
def basePathExamples = new FixedSetExamples(basePaths)
private def equiv(f1: File, f2: File) = f1.getCanonicalFile == f2.getCanonicalFile
def parentChain(f: File): Iterator[File] =
if (f == null || !f.exists) Iterator()
else Iterator(f) ++ (if (f.getParentFile == null) Nil else parentChain(f.getParentFile))
def isParentOf(parent: File, f2: File, maxDepth: Int) =
parentChain(f2).take(maxDepth).exists(p1 => equiv(p1, parent))
def isTestCase(f: File) = {
val grandParent = if (f != null && f.getParentFile != null) f.getParentFile.getParentFile else null
grandParent != null && equiv(grandParent, testBase / srcPath) && testCaseFilter.accept(f)
}
def mayContainTestCase(f: File) = {
isParentOf(testBase / srcPath, f, 2) || isParentOf(f, testBase / srcPath, Int.MaxValue)
}
}
/** A parser for the custom `partest` command */
def partestParser(globalBase: File, testBase: File): Parser[String] = {
val knownUnaryOptions = List(
"--pos", "--neg", "--run", "--jvm", "--res", "--ant", "--scalap", "--specialized",
"--scalacheck", "--instrumented", "--presentation", "--failed", "--update-check",
"--show-diff", "--show-log", "--verbose", "--terse", "--debug", "--version", "--self-test", "--help")
val srcPathOption = "--srcpath"
val grepOption = "--grep"
// HACK: if we parse `--srpath scaladoc`, we overwrite this var. The parser for test file paths
// then lazily creates the examples based on the current value.
// TODO is there a cleaner way to do this with SBT's parser infrastructure?
var srcPath = "files"
var _testFiles: TestFiles = null
def testFiles = {
if (_testFiles == null || _testFiles.srcPath != srcPath) _testFiles = new TestFiles(srcPath, globalBase, testBase)
_testFiles
}
val TestPathParser = ParserUtil.FileParser(
new SimpleFileFilter(f => testFiles.isTestCase(f)),
new SimpleFileFilter(f => testFiles.mayContainTestCase(f)), globalBase)
// allow `--grep "is unchecked" | --grep *t123*, in the spirit of ./bin/partest-ack
// superset of the --grep built into partest itself.
val Grep = {
def expandGrep(x: String): Seq[String] = {
val matchingFileContent = try {
val Pattern = ("(?i)" + x).r
testFiles.allTestCases.filter {
case (testFile, testPath) =>
val assocFiles = List(".check", ".flags").map(testFile.getParentFile / _)
val sourceFiles = if (testFile.isFile) List(testFile) else testFile.**(AllPassFilter).get.toList
val allFiles = testFile :: assocFiles ::: sourceFiles
allFiles.exists { f => f.exists && f.isFile && Pattern.findFirstIn(IO.read(f)).isDefined }
}
} catch {
case _: Throwable => Nil
}
val matchingFileName = try {
val filter = GlobFilter("*" + x + "*")
testFiles.allTestCases.filter(x => filter.accept(x._1.name))
} catch {
case t: Throwable => Nil
}
(matchingFileContent ++ matchingFileName).map(_._2).distinct.sorted
}
val completion = Completions.strict(Set("<filename glob>", "<regex> (for source, flags or checkfile contents)").map(s => Completion.displayOnly(s)))
val tokenCompletion = TokenCompletions.fixed((seen, level) => completion)
val globOrPattern = StringBasic.map(expandGrep).flatMap {
case Seq() => failure("no tests match pattern / glob")
case x => success(x.mkString(" "))
}
token(grepOption <~ Space) ~> token(globOrPattern, tokenCompletion)
}
val SrcPath = ((token(srcPathOption) <~ Space) ~ token(StringBasic.examples(Set("files", "pending", "scaladoc")))) map {
case opt ~ path =>
srcPath = path
opt + " " + path
}
val P = oneOf(knownUnaryOptions.map(x => token(x))) | SrcPath | TestPathParser | Grep
(Space ~> repsep(P, oneOrMore(Space))).map(_.mkString(" ")).?.map(_.getOrElse("")) <~ OptSpace
}
}
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