1 files changed, 126 insertions, 0 deletions
diff --git a/project/LocalPlugin.scala b/project/LocalPlugin.scala
new file mode 100644
index 0000000..61da0b6
--- /dev/null
+++ b/project/LocalPlugin.scala
@@ -0,0 +1,126 @@
+import java.nio.file.attribute.PosixFilePermissions
+import java.nio.file.{Files, StandardCopyOption}
+import sbt.Keys._
+import sbt.{Def, _}
+import sbtassembly.AssemblyPlugin
+
+object LocalPlugin extends AutoPlugin {
+
+  override def requires = plugins.JvmPlugin && AssemblyPlugin
+  override def trigger = allRequirements
+
+  object autoImport {
+    val dbMigrate = taskKey[File]("Apply sqitch database migrations")
+    val dbTables = taskKey[Seq[File]]("Generate database tables")
+    val fhsDist = taskKey[File](
+      "Copy application  to a directory structure according to the " +
+        "Filesystem Hierarchy Standard, simplifying further packaging for " +
+        "final platforms such as Debian or Docker.")
+  }
+  import autoImport._
+
+  override def projectSettings: Seq[Def.Setting[_]] = Seq(
+    scalacOptions ++= Seq("-deprecation", "-feature"),
+    libraryDependencies ++= Seq(
+      "com.typesafe.slick" %% "slick" % "3.2.3",
+      "com.typesafe.slick" %% "slick-codegen" % "3.2.3",
+      "org.slf4j" % "slf4j-nop" % "1.7.19",
+      "org.xerial" % "sqlite-jdbc" % "3.25.2"
+    ),
+    dbMigrate := {
+      import sys.process._
+      val dbFile = target.value / "main.db"
+      val cmd = s"sqitch deploy db:sqlite:${dbFile.getPath}"
+      val status = cmd.run().exitValue()
+      if (status != 0) {
+        throw new MessageOnlyException(s"command '$cmd' exited with $status")
+      }
+      dbFile
+    },
+    dbTables := {
+      val dbUrl = s"jdbc:sqlite:${dbMigrate.value.toPath}"
+      val out = (scalaSource in Compile).value
+      (runner in Compile).value.run(
+        "slick.codegen.SourceCodeGenerator",
+        (dependencyClasspath in Compile).value.files,
+        Array(
+          "slick.jdbc.SQLiteProfile", // slick driver
+          "org.sqlite.JDBC", // JDBC driver
+          dbUrl, // database connection
+          out.toString, // file
+          "byspel" // package
+        ),
+        streams.value.log
+      )
+      Seq(out / "Tables.scala")
+    },
+    fhsDist := {
+      val root = (target in Compile).value / "dist"
+      Files.createDirectories((root / "etc").toPath)
+      Files.createDirectories((root / "usr" / "bin").toPath)
+      Files.createDirectories((root / "usr" / "share" / "byspel").toPath)
+      Files.createDirectories((root / "usr" / "lib" / "byspel").toPath)
+      Files.createDirectories((root / "var" / "lib" / "byspel").toPath)
+      Files.copy(
+        AssemblyPlugin.autoImport.assembly.value.toPath,
+        (root / "usr" / "share" / "byspel" / "main.jar").toPath,
+        StandardCopyOption.REPLACE_EXISTING
+      )
+      Files.writeString(
+        (root / "etc" / "byspel.toml").toPath,
+        """|[http]
+           |address = "0.0.0.0"
+           |port = 8555
+           |
+           |[database]
+           |file = "/var/lib/byspel/main.db"
+           |sqitch_base = "/usr/share/byspel/sqitch"
+           |""".stripMargin
+      )
+      import sys.process._
+      require(
+        s"sqitch bundle --dest-dir=$root/usr/share/byspel/sqitch"
+          .run()
+          .exitValue() == 0,
+        "error bundling sqitch"
+      )
+      require(
+        Process(
+          Seq(
+            "cc",
+            "-g",
+            "-O2",
+            "-Wall",
+            "-Werror",
+            "-fPIC",
+            "-shared",
+            "-o",
+            s"$root/usr/lib/byspel/libprocname.so",
+            "launcher/procname.c"
+          )
+        ).run().exitValue() == 0,
+        "error compiling launcher"
+      )
+
+      val exec = (root / "usr" / "bin" / "byspel").toPath
+      Files.writeString(
+        exec,
+        s"""|#!/bin/bash
+            |export LD_PRELOAD=/usr/lib/byspel/libprocname.so
+            |export PROCNAME="byspel"
+            |exec java -cp /usr/share/byspel/main.jar byspel.Main "$$@"
+            |""".stripMargin
+      )
+      Files.setPosixFilePermissions(
+        exec,
+        PosixFilePermissions.fromString("rwxr-xr-x")
+      )
+      root
+    }
+  )
+
+  override def buildSettings: Seq[Def.Setting[_]] =
+    addCommandAlias("start", "reStart dev.toml") ++
+      addCommandAlias("stop", "reStop")
+
+}