Put the javac command in a file.

Also introduce fixSlashes().

modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/misc/JarUtils.kt

@@ -65,7 +65,7 @@ class JarUtils {
                             entry = stream.nextEntry
                         }
                     } else {
-                        val entryFileName = file.to(foundFile.path).path.replace("\\", "/")
+                        val entryFileName = KFiles.fixSlashes(file.to(foundFile.path))
                         val entry = JarEntry(entryFileName)
                         entry.time = localFile.lastModified()
                         addEntry(FileInputStream(localFile), entry, outputStream, onError)

modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/misc/KFiles.kt

@@ -115,6 +115,9 @@ class KFiles {
          */
         fun joinFileAndMakeDir(vararg ts: String) = joinDir(joinAndMakeDir(ts.slice(0..ts.size - 2)), ts[ts.size - 1])
 
+        fun fixSlashes(f: File) = KFiles.fixSlashes(f.path)
+        fun fixSlashes(s: String) = s.replace('\\', '/')
+
         fun makeDir(dir: String, s: String? = null) =
                 (if (s != null) File(dir, s) else File(dir)).apply { mkdirs() }
 

src/main/kotlin/com/beust/kobalt/app/remote/KobaltClient.kt

@@ -8,6 +8,7 @@ import com.beust.kobalt.homeDir
 import com.beust.kobalt.internal.GraphUtil
 import com.beust.kobalt.internal.KobaltSettings
 import com.beust.kobalt.maven.aether.Exceptions
+import com.beust.kobalt.misc.KFiles
 import com.beust.kobalt.misc.warn
 import com.google.gson.Gson
 import com.google.inject.Guice
@@ -31,7 +32,7 @@ class KobaltClient : Runnable {
         val client = OkHttpClient()
         val port = KobaltServer.port ?: 1240
         val url = "ws://localhost:$port/v1/getDependencyGraph"
-        val buildFile = homeDir("kotlin/kobalt/kobalt/src/Build.kt").replace("\\", "/")
+        val buildFile = KFiles.fixSlashes(homeDir("kotlin/kobalt/kobalt/src/Build.kt"))
         val request = Request.Builder()
 //            .url("ws://echo.websocket.org")
             .url("$url?buildFile=$buildFile")

src/main/kotlin/com/beust/kobalt/plugin/java/JavaCompiler.kt

@@ -15,6 +15,7 @@ import com.google.inject.Inject
 import com.google.inject.Singleton
 import java.io.File
 import java.io.PrintWriter
+import java.nio.file.Files
 import javax.tools.DiagnosticCollector
 import javax.tools.JavaFileObject
 import javax.tools.ToolProvider
@@ -77,11 +78,13 @@ class JavaCompiler @Inject constructor(val jvmCompiler: JvmCompiler, val kobaltL
                     allArgs.addAll(info.compilerArgs)
                     allArgs.addAll(info.sourceFiles.filter { File(it).isFile })
 
-                    val pb = ProcessBuilder(allArgs)
+                    val dir = Files.createTempDirectory("kobalt").toFile()
+                    val atFile = File(dir, "javac-" + project?.name + ".txt")
+                    atFile.writeText(KFiles.fixSlashes(allArgs.subList(1, allArgs.size).joinToString(" ")))
+                    val pb = ProcessBuilder(executable.absolutePath, "@" + KFiles.fixSlashes(atFile))
                     pb.inheritIO()
-                    val line = allArgs.joinToString(" ")
                     logk(1, "  Java compiling " + Strings.pluralizeAll(info.sourceFiles.size, "file"))
-                    logk(2, "  Java compiling $line")
+                    logk(2, "  Java compiling file: " + KFiles.fixSlashes(atFile))
 
                     command = allArgs.joinToString(" ") + " " + info.sourceFiles.joinToString(" ")
                     val process = pb.start()

src/test/kotlin/com/beust/kobalt/BaseTest.kt

@@ -7,6 +7,7 @@ import com.beust.kobalt.internal.JvmCompilerPlugin
 import com.beust.kobalt.internal.KobaltPluginXml
 import com.beust.kobalt.internal.PluginInfo
 import com.beust.kobalt.internal.build.BuildFile
+import com.beust.kobalt.misc.KFiles
 import com.beust.kobalt.misc.log
 import org.testng.annotations.BeforeClass
 import java.io.File
@@ -27,7 +28,7 @@ open class BaseTest(val compilerFactory: BuildFileCompiler.IFactory? = null) {
      */
     fun compileSingleProject(projectText: String, args: Args = Args()) : Project {
         val projectName = "p" + Math.abs(Random().nextInt())
-        val projectDirectory = Files.createTempDirectory("kobaltTest").toFile().path.replace("\\", "/")
+        val projectDirectory = KFiles.fixSlashes(Files.createTempDirectory("kobaltTest").toFile())
         val buildFileText= """
             import com.beust.kobalt.*
             import com.beust.kobalt.api.*
@@ -87,7 +88,6 @@ open class BaseTest(val compilerFactory: BuildFileCompiler.IFactory? = null) {
                 forceRecompile = true)
     }
 
-    fun createTemporaryProjectDirectory() = Files.createTempDirectory("kobaltTest").toFile().path
+    fun createTemporaryProjectDirectory() = KFiles.fixSlashes(Files.createTempDirectory("kobaltTest").toFile())
-            .replace("\\", "/")
 
 }