From dff97b40df39e5eb391e1fc30ca47180384f1747 Mon Sep 17 00:00:00 2001
From: Jakob Odersky <jakob@odersky.com>
Date: Sat, 18 Mar 2017 01:58:01 -0400
Subject: Refactor trait-based dependencies to constructor parameters

---
 .../src/main/scala/io/crashbox/ci/Parser.scala     | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 crashbox-server/src/main/scala/io/crashbox/ci/Parser.scala

(limited to 'crashbox-server/src/main/scala/io/crashbox/ci/Parser.scala')

diff --git a/crashbox-server/src/main/scala/io/crashbox/ci/Parser.scala b/crashbox-server/src/main/scala/io/crashbox/ci/Parser.scala
new file mode 100644
index 0000000..a8b4f19
--- /dev/null
+++ b/crashbox-server/src/main/scala/io/crashbox/ci/Parser.scala
@@ -0,0 +1,34 @@
+package io.crashbox.ci
+
+import java.io.File
+import java.nio.file.Files
+
+import scala.collection.JavaConverters._
+
+object Parser {
+
+  def defaultImage = "crashbox/default"
+
+  def parseBuild(workdir: File): Either[BuildDef, ParseError] = {
+    val file = new File(workdir, ".crashbox.txt")
+    if (!file.exists()) {
+      return Right(
+        ParseError("No build configuration file .crashbox.txt found."))
+    }
+
+    val lines = Files.readAllLines(file.toPath).asScala.map(_.trim)
+
+    val Pattern = """(\w+)\s*:\s*(.+)""".r
+
+    val image = lines
+      .collectFirst { case Pattern("image", s) => s }
+      .getOrElse(defaultImage)
+    val script = lines.collectFirst { case Pattern("script", s) => s }
+
+    script match {
+      case Some(s) => Left(BuildDef(image, s))
+      case None =>
+        Right(ParseError("No build script defined in configuration."))
+    }
+  }
+}
-- 
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