giter8 0.7.1

enable bottling
add :java requirement
do a complete installation in libexec using upstream's `conscript` tool
remove the caveat since it's no longer applicable
add a test

Closes #4205.

Signed-off-by: ilovezfs <ilovezfs@icloud.com>

Formula/giter8.rb

@@ -1,53 +1,51 @@
 class Giter8 < Formula
   desc "Generate files and directories from templates in a git repo"
   homepage "https://github.com/n8han/giter8"
-  url "https://repo.typesafe.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/0.13.7/sbt-launch.jar"
-  version "0.6.8"
-  sha256 "9673ca4611e6367955ae068d5888f7ae665ab013c3e8435ffe2ca94318c6d607"
-  # note: because sbt-launch dynamically downloads giter8 from the maven repos
-  #   at first run (using the launchconfig mechanism), and not when the formula
-  #   is installed, the above url and sha256 are related to sbt-launch.jar.
-  #   The version below is that of giter8, and when upgrading this formula,
-  #   one must check the giter8 version is available in maven repositories.
+  url "https://github.com/foundweekends/giter8/archive/v0.7.1.tar.gz"
+  sha256 "181357720f14b49cf132210a04fe3ad470d51731030394a8a723c1c49aced42c"
 
-  bottle :unneeded
+  depends_on :java => "1.6+"
 
-  def exec_script; <<-EOS.undent
-    #!/bin/sh
-    exec java -Xmx512M -jar #{prefix}/sbt-launch.jar @giter8.launchconfig "$@"
-    EOS
+  resource "conscript" do
+    url "https://github.com/foundweekends/conscript.git",
+        :revision => "f7ee8b5bc3b00592adbd09c878b6649b624f141c"
   end
 
-  def config_script; <<-EOS.undent
-    [app]
-      version: #{version}
-      org: net.databinder.giter8
-      name: giter8
-      class: giter8.Giter8
-    [scala]
-      version: 2.10.4
-    [repositories]
-      local
-      maven-central
-      sonatype-releases: https://oss.sonatype.org/content/repositories/releases/
-    [boot]
-      directory: #{prefix}/boot
-    EOS
+  resource "launcher" do
+    url "https://oss.sonatype.org/content/repositories/public/org/scala-sbt/launcher/1.0.0/launcher-1.0.0.jar"
+    sha256 "9149549ee09c50bda21ab57990f95aac4dd3919d720367df6198ec7e16480639"
   end
 
   def install
-    (bin/"g8").write exec_script
-    (prefix/"giter8.launchconfig").write config_script
-    prefix.install "sbt-launch.jar"
+    conscript_home = libexec/"conscript"
+    ENV["CONSCRIPT_HOME"] = conscript_home
+    ENV.java_cache
+
+    conscript_home.install resource("launcher")
+    launcher = conscript_home/"launcher-#{resource("launcher").version}.jar"
+    conscript_home.install_symlink launcher => "sbt-launch.jar"
+
+    resource("conscript").stage do
+      cs = conscript_home/"foundweekends/conscript/cs"
+      cs.install "src/main/conscript/cs/launchconfig"
+      inreplace "setup.sh" do |s|
+        s.gsub! /.*wget .*/, ""
+        s.gsub! /^ +exec .*/, "exit"
+      end
+      system "sh", "-x", "setup.sh" # exit code is 1
+    end
+
+    system conscript_home/"bin/cs", "foundweekends/giter8/#{version}"
+    bin.install_symlink conscript_home/"bin/g8"
   end
 
-  def caveats; <<-EOS.undent
-    Giter8 will download the Scala runtime and the rest of the
-    giter8 binaries the first time you run it.
-    You can do that now by running "g8".
-
-    If the download of a resources fails, try cleaning your
-    ~/.ivy2/cache folder and rerun / reinstall giter8.
-    EOS
+  test do
+    # sandboxing blocks us from locking libexec/"conscript/boot/sbt.boot.lock"
+    cp_r libexec/"conscript", "."
+    inreplace %w[conscript/bin/cs conscript/bin/g8
+                 conscript/foundweekends/giter8/g8/launchconfig
+                 conscript/foundweekends/conscript/cs/launchconfig],
+      libexec, testpath
+    system testpath/"conscript/bin/g8", "--version"
   end
 end