make LogFile nicer, move stuff around

src/main/kotlin/alfred/web/core/Builds.kt

@@ -60,7 +60,7 @@ class Builds(
         val path = Paths.get(home, "logs", fileName)
         path.toFile().parentFile.mkdirs()
 
-        return Files.createFile(path).toFile()
+        return LogFile(Files.createFile(path).toFile())
     }
 
 }

src/main/kotlin/alfred/web/core/GitRunner.kt

@@ -103,13 +103,6 @@ data class BuildContext(
     val buildId: BuildId
 )
 
-class WorkspaceIsNotEmpty(
-    private val ws: String
-) : RuntimeException() {
-    override fun toString() =
-        "${this::class}: workspace $ws is not empty"
-}
-
 class FailedToClone(
     private val buildId: BuildId,
     private val gitRepo: String

src/main/kotlin/alfred/web/core/LogFile.kt

@@ -0,0 +1,33 @@
+package alfred.web.core
+
+import java.io.File
+import java.nio.file.Path
+import java.time.ZonedDateTime
+import kotlin.io.appendText
+
+class LogFile(
+    val backingFile: File
+) {
+
+    fun header(buildId: BuildId, rev: String, workspace: Path) {
+        append("At your service.")
+        append("Build $buildId, rev [$rev] started at ${ZonedDateTime.now()}")
+        append("Workspace directory is: $workspace\n")
+    }
+
+    fun footer() {
+        append("Build finished at ${ZonedDateTime.now()}")
+    }
+
+    fun append(content: String) =
+        backingFile.appendText(
+            content.lines().joinToString(separator = "\n") {
+                if (it.trim().isEmpty()) {
+                    ""
+                } else {
+                    "Alfred: $it"
+                }
+            } + "\n"
+        )
+
+}

src/main/kotlin/alfred/web/core/ScriptRunner.kt

@@ -40,6 +40,6 @@ class ScriptRunner(
 
 data class ProcessInfo(
     val pid: Long,
-    val logFile: File
+    val logFile: LogFile
 )
 

src/main/kotlin/alfred/web/core/Workspaces.kt

@@ -18,11 +18,13 @@ class Workspaces {
         ctx.logFile.header(ctx.buildId, ctx.rev, workspacePath)
 
         if (!workspaceDir.exists()) {
+            ctx.logFile.append("creating workspace ${workspaceDir.absolutePath}")
             workspaceDir.mkdirs()
         }
 
         val wsList = workspaceDir.list()
         if (wsList != null && wsList.isNotEmpty()) {
+            ctx.logFile.append("workspace ${workspaceDir.absolutePath} is not empty, aborting")
             throw WorkspaceIsNotEmpty(workspaceDir.toString())
         }
 
@@ -34,4 +36,11 @@ class Workspaces {
         }
     }
 
-}
+}
+
+class WorkspaceIsNotEmpty(
+    private val ws: String
+) : RuntimeException() {
+    override fun toString() =
+        "${this::class}: workspace $ws is not empty"
+}

src/main/kotlin/alfred/web/core/process.kt

@@ -1,38 +1,11 @@
 package alfred.web.core
 
-import java.io.File
-import java.nio.file.Path
-import java.time.ZonedDateTime
-
-fun processBuilder(config: BuildConfig, logFile: File, rev: String): ProcessBuilder =
+fun processBuilder(config: BuildConfig, logFile: LogFile, rev: String): ProcessBuilder =
     ProcessBuilder()
-        .redirectOutput(ProcessBuilder.Redirect.appendTo(logFile))
-        .redirectError(ProcessBuilder.Redirect.appendTo(logFile))
+        .redirectOutput(ProcessBuilder.Redirect.appendTo(logFile.backingFile))
+        .redirectError(ProcessBuilder.Redirect.appendTo(logFile.backingFile))
         .apply {
             environment().putAll(config.env)
-            environment()["ALFRED_LOG_FILE"] = logFile.absolutePath
+            environment()["ALFRED_LOG_FILE"] = logFile.backingFile.absolutePath
             environment()["ALFRED_REV"] = rev
         }
-
-typealias LogFile = File
-
-fun LogFile.header(buildId: BuildId, rev: String, workspace: Path) {
-    this.append("At your service.")
-    this.append("Build $buildId, rev [$rev] started at ${ZonedDateTime.now()}")
-    this.append("Workspace directory is: $workspace\n")
-}
-
-fun LogFile.footer() {
-    this.append("Build finished at ${ZonedDateTime.now()}")
-}
-
-fun LogFile.append(content: String) =
-    this.appendText(
-        content.lines().joinToString(separator = "\n") {
-            if (it.trim().isEmpty()) {
-                ""
-            } else {
-                "Alfred: $it"
-            }
-        } + "\n"
-    )

src/main/kotlin/alfred/web/http/Endpoints.kt

@@ -57,7 +57,7 @@ class Endpoints(
 
         ResponseEntity.ok(
             mapOf(
-                "log" to info.logFile.absolutePath,
+                "log" to info.logFile.backingFile.absolutePath,
                 "pid" to info.pid
             )
         )