- Collected the Lux compiler's repo, the Standard Library's, the Leiningen plugin's and the Emacs mode's into a big monorepo, to keep development unified.

10 files changed, 679 insertions, 0 deletions

diff --git a/lux-lein/LICENSE b/lux-lein/LICENSE
new file mode 100644
index 000000000..786edf6b2
--- /dev/null
+++ b/lux-lein/LICENSE
@@ -0,0 +1,214 @@
+THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
+LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM
+CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
+
+1. DEFINITIONS
+
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+documentation distributed under this Agreement, and
+
+b) in the case of each subsequent Contributor:
+
+i) changes to the Program, and
+
+ii) additions to the Program;
+
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+anyone acting on such Contributor's behalf. Contributions do not include
+additions to the Program which: (i) are separate modules of software
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+agreement, and (ii) are not derivative works of the Program.
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+This Agreement is governed by the laws of the State of Washington and the
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diff --git a/lux-lein/README.md b/lux-lein/README.md
new file mode 100644
index 000000000..6d024a58f
--- /dev/null
+++ b/lux-lein/README.md
@@ -0,0 +1,27 @@
+# How to use it
+
+You'll need a project.clj that imports the lein-luxc plugin.
+
+Here's an example:
+
+```
+(defproject com.github.luxlang/lux-stdlib "0.4.0"
+  :description "Standard library for the Lux programming language."
+  :url "https://github.com/LuxLang/stdlib"
+  :license {:name "Mozilla Public License (Version 2.0)"
+            :url "https://www.mozilla.org/en-US/MPL/2.0/"}
+  :plugins [[com.github.luxlang/lein-luxc "0.3.0"]]
+  :source-paths ["source"]
+  )
+
+```
+
+Now, all you need to do is run the plugin like this:
+
+	lein luxc compile
+	
+And, if you want to run unit-tests, you can do:
+
+	lein luxc test
+
+Those unit tests must be in the `test` directory on your project root.
diff --git a/license.txt b/lux-lein/license.txt
index 52d135112..52d135112 100644
--- a/license.txt
+++ b/lux-lein/license.txt
diff --git a/lux-lein/project.clj b/lux-lein/project.clj
new file mode 100644
index 000000000..69cc7ff17
--- /dev/null
+++ b/lux-lein/project.clj
@@ -0,0 +1,21 @@
+;;  Copyright (c) Eduardo Julian. All rights reserved.
+;;  This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+;;  If a copy of the MPL was not distributed with this file,
+;;  You can obtain one at http://mozilla.org/MPL/2.0/.
+
+(defproject com.github.luxlang/lein-luxc "0.5.0-SNAPSHOT"
+  :description "The Leiningen plugin for the Lux programming language."
+  :url "https://github.com/LuxLang/lein-luxc"
+  :license {:name "Mozilla Public License"
+            :url "https://www.mozilla.org/en-US/MPL/2.0/"}
+  :dependencies [[org.clojure/clojure "1.6.0"]
+                 [com.github.luxlang/luxc-jvm "0.5.0-SNAPSHOT"]
+                 [com.github.luxlang/lux-stdlib "0.5.0-SNAPSHOT"]]
+  :deploy-repositories [["releases" {:url "https://oss.sonatype.org/service/local/staging/deploy/maven2/"
+                                     :creds :gpg}]
+                        ["snapshots" {:url "https://oss.sonatype.org/content/repositories/snapshots/"
+                                      :creds :gpg}]]
+  :pom-addition [:developers [:developer
+                              [:name "Eduardo Julian"]
+                              [:url "https://github.com/eduardoejp"]]]
+  :eval-in :leiningen)
diff --git a/lux-lein/src/leiningen/luxc.clj b/lux-lein/src/leiningen/luxc.clj
new file mode 100644
index 000000000..b04e4997a
--- /dev/null
+++ b/lux-lein/src/leiningen/luxc.clj
@@ -0,0 +1,27 @@
+;;  Copyright (c) Eduardo Julian. All rights reserved.
+;;  This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+;;  If a copy of the MPL was not distributed with this file,
+;;  You can obtain one at http://mozilla.org/MPL/2.0/.
+
+(ns leiningen.luxc
+  (:require [leiningen.pom :as pom]
+            [leiningen.core.classpath :as classpath]
+            (leiningen.luxc [compiler :as &compiler]
+                            [test :as &test]
+                            [repl :as &repl])))
+
+;; [Exports]
+(defn luxc [project & args]
+  (case (first args)
+    "compile"
+    (&compiler/compile project)
+
+    "test"
+    (&test/test project)
+
+    "repl"
+    (&repl/repl project)
+
+    ;; default...
+    (println "Commands available: compile, test, repl"))
+  )
diff --git a/lux-lein/src/leiningen/luxc/compiler.clj b/lux-lein/src/leiningen/luxc/compiler.clj
new file mode 100644
index 000000000..18eef63a0
--- /dev/null
+++ b/lux-lein/src/leiningen/luxc/compiler.clj
@@ -0,0 +1,19 @@
+;;  Copyright (c) Eduardo Julian. All rights reserved.
+;;  This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+;;  If a copy of the MPL was not distributed with this file,
+;;  You can obtain one at http://mozilla.org/MPL/2.0/.
+
+(ns leiningen.luxc.compiler
+  (:refer-clojure :exclude [compile])
+  (:require [leiningen.core.classpath :as classpath]
+            (leiningen.luxc [utils :as &utils]
+                            [packager :as &packager])))
+
+(defn compile [project]
+  (if-let [program-module (get-in project [:lux :program])]
+    (do (&utils/run-process (&utils/compile-path project program-module (get project :source-paths (list)))
+                            nil
+                            "[COMPILATION BEGIN]"
+                            "[COMPILATION END]")
+      (&packager/package project program-module (get project :resource-paths (list))))
+    (println "Please provide a program main module in [:lux :program]")))
diff --git a/lux-lein/src/leiningen/luxc/packager.clj b/lux-lein/src/leiningen/luxc/packager.clj
new file mode 100644
index 000000000..e7b1d71d8
--- /dev/null
+++ b/lux-lein/src/leiningen/luxc/packager.clj
@@ -0,0 +1,212 @@
+;;  Copyright (c) Eduardo Julian. All rights reserved.
+;;  This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+;;  If a copy of the MPL was not distributed with this file,
+;;  You can obtain one at http://mozilla.org/MPL/2.0/.
+
+(ns leiningen.luxc.packager
+  (:require [clojure.string :as string]
+            [leiningen.core.classpath :as classpath]
+            [leiningen.uberjar]
+            [leiningen.luxc.utils :as &utils])
+  (:import (java.io InputStream
+                    File
+                    FileInputStream
+                    FileOutputStream
+                    BufferedInputStream
+                    ByteArrayInputStream
+                    ByteArrayOutputStream)
+           (java.util.jar Manifest
+                          Attributes$Name
+                          JarEntry
+                          JarInputStream
+                          JarOutputStream
+                          )))
+
+;; [Utils]
+(def ^:private kilobyte 1024)
+(def ^:private buffer-size (* 10 kilobyte))
+
+(defn ^:private manifest
+  "(-> Project Text Bool Manifest)"
+  [project module includes-android?]
+  (doto (new Manifest)
+    (-> .getMainAttributes
+        (doto (-> (.put Attributes$Name/MAIN_CLASS (str module "._"))
+                  (->> (when (not includes-android?))))
+          (.put Attributes$Name/MANIFEST_VERSION "1.0")
+          (.put (new Attributes$Name "LUX_JAR") "true")
+          (-> (.put (new Attributes$Name name) real-v)
+              (->> (doseq [[name v] (get project :manifest)
+                           :let [real-v (if (string? v) v (v project))]])))))))
+
+(defn ^:private write-class!
+  "(-> Text File JarOutputStream Null)"
+  [^String path ^File file ^JarOutputStream out]
+  (with-open [in (new BufferedInputStream (new FileInputStream file))]
+    (let [buffer (byte-array buffer-size)]
+      (doto out
+        (.putNextEntry (new JarEntry (str path "/" (.getName file))))
+        (-> (.write buffer 0 bytes-read)
+            (->> (when (not= -1 bytes-read))
+                 (loop [bytes-read (.read in buffer)])))
+        (.flush)
+        (.closeEntry)
+        ))
+    ))
+
+(defn ^:private write-module!
+  "(-> File JarOutputStream Null)"
+  [^File file ^JarOutputStream out output-dir]
+  (let [output-dir-size (inc (.length output-dir))
+        module-name (.substring (.getPath file) output-dir-size)
+        inner-files (.listFiles file)
+        inner-modules (filter #(.isDirectory ^File %) inner-files)
+        inner-classes (filter #(not (.isDirectory ^File %)) inner-files)]
+    (doseq [$class inner-classes]
+      (write-class! module-name $class out))
+    (doseq [$module inner-modules]
+      (write-module! $module out output-dir))))
+
+(defn ^:private write-resources!
+  "(-> JarOutputStream (List Text) Null)"
+  [^JarOutputStream out resources-dirs]
+  (doseq [resources-dir resources-dirs
+          :let [resources-dir (new File resources-dir)]
+          :when (.exists resources-dir)
+          ^File res (.listFiles resources-dir)
+          :let [buffer (byte-array buffer-size)]]
+    (with-open [in (->> res (new FileInputStream) (new BufferedInputStream))]
+      (doto out
+        (.putNextEntry (new JarEntry (.getName res)))
+        (-> (.write buffer 0 bytes-read)
+            (->> (when (not= -1 bytes-read))
+                 (loop [bytes-read (.read in buffer)])))
+        (.flush)
+        (.closeEntry))
+      )))
+
+(let [init-capacity (* 100 1024)
+      buffer-size 1024]
+  (defn ^:private ^"[B" read-stream [^InputStream is]
+    (let [buffer (byte-array buffer-size)]
+      (with-open [os (new ByteArrayOutputStream init-capacity)]
+        (loop [bytes-read (.read is buffer 0 buffer-size)]
+          (when (not= -1 bytes-read)
+            (do (.write os buffer 0 bytes-read)
+              (recur (.read is buffer 0 buffer-size)))))
+        (.toByteArray os)))))
+
+(defn ^:private add-jar! [^File jar-file project !all-jar-files]
+  (with-open [is (->> jar-file (new FileInputStream) (new JarInputStream))]
+    (loop [^JarEntry entry (.getNextJarEntry is)]
+      (when entry
+        (let [entry-name (.getName entry)]
+          (if (and (not (.isDirectory entry))
+                   (not (.startsWith entry-name "META-INF/maven/"))
+                   (not (some (fn [exclusion]
+                                (re-find exclusion entry-name))
+                              (get project :uberjar-exclusions))))
+            (let [entry-data (read-stream is)
+                  entry-data (or (some (fn [[pattern [read fuse write]]]
+                                         (let [matches? (if (string? pattern)
+                                                          (= pattern entry-name)
+                                                          (re-find pattern entry-name))]
+                                           (when matches?
+                                             (let [os (new ByteArrayOutputStream 1024)
+                                                   [_data _entry] (get @!all-jar-files entry-name [(byte-array 0) nil])
+                                                   _ (write os (fuse (read (new ByteArrayInputStream _data))
+                                                                     (read (new ByteArrayInputStream entry-data))))]
+                                               (.toByteArray os)))))
+                                       (eval (get project :uberjar-merge-with)))
+                                 entry-data)]
+              (swap! !all-jar-files assoc entry-name [entry-data entry])
+              (recur (.getNextJarEntry is)))
+            (recur (.getNextJarEntry is))))
+        ))))
+
+(def default-manifest-file "./AndroidManifest.xml")
+
+;; [Resources]
+(defn package
+  "(-> Text (List Text) Null)"
+  [project module resources-dirs]
+  (let [output-dir (get-in project [:lux :target] &utils/output-dir)
+        output-package (str (get-in project [:lux :target] &utils/output-dir) "/"
+                            (get project :jar-name &utils/output-package))
+        !all-jar-files (atom {})
+        includes-android? (boolean (some #(-> % first (= 'com.google.android/android))
+                                         (get project :dependencies)))
+        project* (-> project
+                     (update-in [:dependencies] (fn [_deps]
+                                                  ;; Skip the last two,
+                                                  ;; because they are:
+                                                  ;; tools.nrepl-0.2.12.jar and
+                                                  ;; clojure-complete-0.2.4.jar
+                                                  ;; and they belong to Leiningen.
+                                                  (take (- (count _deps) 2) _deps))))
+        deps (->> project*
+                  (classpath/resolve-managed-dependencies :dependencies :managed-dependencies)
+                  (map #(.getAbsolutePath ^File %)))]
+    (do (.delete (new File output-package))
+      (with-open [out (new JarOutputStream
+                           (->> output-package (new File) (new FileOutputStream))
+                           (manifest project module includes-android?))]
+        (do (doseq [$group (.listFiles (new File output-dir))]
+              (write-module! $group out output-dir))
+          (when (not (get-in project [:lux :android]))
+            (write-resources! out resources-dirs))
+          (doseq [^String file-path deps]
+            (add-jar! (new File file-path) project !all-jar-files))
+          (doseq [[_ [entry-data entry]] @!all-jar-files]
+            (doto out
+              (.putNextEntry (doto entry (.setCompressedSize -1)))
+              (.write entry-data 0 (alength entry-data))
+              (.flush)
+              (.closeEntry)))
+          nil))
+      (when (get-in project [:lux :android])
+        (let [output-dex "classes.dex"
+              _ (do (.delete (new File output-dex))
+                  (&utils/run-process (str "dx --dex --output=" output-dex " " output-package)
+                                      (new File (get-in project [:lux :target] &utils/output-dir))
+                                      "[DX BEGIN]"
+                                      "[DX END]"))
+              manifest-path (get-in project [:lux :android :manifest] default-manifest-file)
+              sdk-path (get-in project [:lux :android :sdk])
+              android-path (str sdk-path "/platforms/android-" (get-in project [:lux :android :version]) "/android.jar")
+              _ (assert (.exists (new File android-path))
+                        (str "Can't find Android JAR: " android-path))
+              output-apk-unaligned (string/replace output-package #"\.jar$" ".apk.unaligned")
+              output-apk (string/replace output-package #"\.jar$" ".apk")
+              current-working-dir (.getCanonicalPath (new File "."))
+              _ (do (&utils/run-process (str "aapt package -f -M " manifest-path " -I " android-path " -F " output-apk-unaligned
+                                             (apply str " " (interleave (repeat (count resources-dirs)
+                                                                                "-A ")
+                                                                        (filter #(.exists (new File %))
+                                                                                resources-dirs)))
+                                             (apply str " " (interleave (repeat (count resources-dirs)
+                                                                                "-S ")
+                                                                        (->> (get-in project [:lux :android :resources] ["android-resources"])
+                                                                             (map (partial str current-working-dir "/"))
+                                                                             (filter #(.exists (new File %)))))))
+                                        nil
+                                        "[AAPT PACKAGE BEGIN]"
+                                        "[AAPT PACKAGE END]")
+                  (&utils/run-process (str "aapt add -f " output-apk-unaligned " " output-dex)
+                                      (new File (get-in project [:lux :target] &utils/output-dir))
+                                      "[AAPT ADD BEGIN]"
+                                      "[AAPT ADD END]")
+                  (when-let [path (get-in project [:lux :android :keystore :path])]
+                    (when-let [alias (get-in project [:lux :android :keystore :alias])]
+                      (when-let [password (get-in project [:lux :android :keystore :password])]
+                        (&utils/run-process (str "jarsigner -storepass " password " -keystore " path " " output-apk-unaligned " " alias)
+                                            nil
+                                            "[JARSIGNER BEGIN]"
+                                            "[JARSIGNER END]"))))
+                  (&utils/run-process (str "zipalign 4 " output-apk-unaligned " " output-apk)
+                                      nil
+                                      "[ZIPALIGN BEGIN]"
+                                      "[ZIPALIGN END]")
+                  )
+              ]
+          nil)))))
diff --git a/lux-lein/src/leiningen/luxc/repl.clj b/lux-lein/src/leiningen/luxc/repl.clj
new file mode 100644
index 000000000..2bfb281e6
--- /dev/null
+++ b/lux-lein/src/leiningen/luxc/repl.clj
@@ -0,0 +1,35 @@
+;;  Copyright (c) Eduardo Julian. All rights reserved.
+;;  This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+;;  If a copy of the MPL was not distributed with this file,
+;;  You can obtain one at http://mozilla.org/MPL/2.0/.
+
+(ns leiningen.luxc.repl
+  (:require [leiningen.core.classpath :as classpath]
+            [leiningen.luxc.utils :as &utils])
+  (:import (java.io InputStreamReader
+                    BufferedReader
+                    PrintStream)))
+
+(defn repl [project]
+  (println (&utils/repl-path project (:source-paths project)))
+  ;; (let [process (.exec (Runtime/getRuntime) (&utils/repl-path project (:source-paths project)))]
+  ;;   (with-open [std-in (->> System/in (new InputStreamReader) (new BufferedReader))
+  ;;               process-in (->> process .getOutputStream (new PrintStream))
+  ;;               process-out (->> process .getInputStream (new InputStreamReader) (new BufferedReader))
+  ;;               process-err (->> process .getErrorStream (new InputStreamReader) (new BufferedReader))]
+  ;;     (loop []
+  ;;       (do (loop []
+  ;;             (when (.ready process-out)
+  ;;               (println (.readLine process-out))
+  ;;               (recur)))
+  ;;         (loop [had-error? false]
+  ;;           (if (.ready process-out)
+  ;;             (do (println (.readLine process-err))
+  ;;               (recur true))
+  ;;             (when had-error?
+  ;;               (System/exit 1))))
+  ;;         (when-let [input (.readLine std-in)]
+  ;;           (do (.println process-in input)
+  ;;             (recur)))))
+  ;;     ))
+  )
diff --git a/lux-lein/src/leiningen/luxc/test.clj b/lux-lein/src/leiningen/luxc/test.clj
new file mode 100644
index 000000000..a1b5a830c
--- /dev/null
+++ b/lux-lein/src/leiningen/luxc/test.clj
@@ -0,0 +1,27 @@
+;;  Copyright (c) Eduardo Julian. All rights reserved.
+;;  This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+;;  If a copy of the MPL was not distributed with this file,
+;;  You can obtain one at http://mozilla.org/MPL/2.0/.
+
+(ns leiningen.luxc.test
+  (:refer-clojure :exclude [test])
+  (:require [leiningen.core.classpath :as classpath]
+            (leiningen.luxc [utils :as &utils]
+                            [packager :as &packager])))
+
+(defn test [project]
+  (if-let [tests-module (get-in project [:lux :tests])]
+    (do (&utils/run-process (&utils/compile-path project tests-module (concat (:test-paths project) (:source-paths project)))
+                            nil
+                            "[COMPILATION BEGIN]"
+                            "[COMPILATION END]")
+      (let [java-cmd (get project :java-cmd "java")
+            jvm-opts (->> (get project :jvm-opts) (interpose " ") (reduce str ""))
+            output-package (str (get-in project [:lux :target] &utils/output-dir) "/"
+                                (get project :jar-name &utils/output-package))]
+        (do (&packager/package project tests-module (get project :resource-paths (list)))
+          (&utils/run-process (str java-cmd " " jvm-opts " -jar " output-package)
+                              nil
+                              "[TEST BEGIN]"
+                              "[TEST END]"))))
+    (println "Please provide a test module in [:lux :tests]")))
diff --git a/lux-lein/src/leiningen/luxc/utils.clj b/lux-lein/src/leiningen/luxc/utils.clj
new file mode 100644
index 000000000..bae02d365
--- /dev/null
+++ b/lux-lein/src/leiningen/luxc/utils.clj
@@ -0,0 +1,97 @@
+;;  Copyright (c) Eduardo Julian. All rights reserved.
+;;  This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
+;;  If a copy of the MPL was not distributed with this file,
+;;  You can obtain one at http://mozilla.org/MPL/2.0/.
+
+(ns leiningen.luxc.utils
+  (:refer-clojure :exclude [compile])
+  (:require [leiningen.core.classpath :as classpath])
+  (:import (java.io File
+                    InputStreamReader
+                    BufferedReader)))
+
+(def ^:const ^String output-dir "target/jvm")
+(def ^:const ^String output-package "program.jar")
+
+(def ^:private unit-separator (str (char 31)))
+
+(def ^:private vm-options "-server -Xms2048m -Xmx2048m -XX:+OptimizeStringConcat")
+
+(defn compile-path [project module source-paths]
+  (let [output-dir (get-in project [:lux :target] output-dir)
+        jar-paths (->> ^java.net.URLClassLoader (ClassLoader/getSystemClassLoader)
+                       (.getURLs)
+                       (map #(.getFile ^java.net.URL %))
+                       (filter #(.endsWith ^String % ".jar")))
+        compiler-path (some (fn [^:private path]
+                              (if (.contains path "com/github/luxlang/luxc-jvm")
+                                path
+                                nil))
+                            jar-paths)
+        stdlib-path (some (fn [^:private path]
+                            (if (.contains path "com/github/luxlang/lux-stdlib")
+                              path
+                              nil))
+                          jar-paths)
+        deps-paths (filter (fn [^:private path]
+                             (or (.contains path "org/ow2/asm/asm-all")
+                                 (.contains path "org/clojure/core.match")
+                                 (.contains path "org/clojure/clojure")))
+                           jar-paths)
+        sdk-path (get-in project [:lux :android :sdk])
+        android-path (str sdk-path "/platforms/android-" (get-in project [:lux :android :version]) "/android.jar")
+        deps-paths (if (.exists (new File android-path))
+                     (cons android-path deps-paths)
+                     deps-paths)]
+    (let [class-path (->> (classpath/get-classpath project)
+                          (filter #(.endsWith % ".jar"))
+                          (concat deps-paths)
+                          (list* stdlib-path)
+                          (interpose java.io.File/pathSeparator)
+                          (reduce str ""))
+          java-cmd (get project :java-cmd "java")
+          jvm-opts (->> (get project :jvm-opts) (interpose " ") (reduce str ""))]
+      (str java-cmd " " jvm-opts " " vm-options " -cp " (str compiler-path ":" class-path)
+           " lux release " module
+           " " (->> (get project :resource-paths (list)) (interpose unit-separator) (apply str))
+           " " (->> source-paths (interpose unit-separator) (apply str))
+           " " output-dir))))
+
+(defn repl-path [project source-paths]
+  (let [jar-paths (->> ^java.net.URLClassLoader (ClassLoader/getSystemClassLoader)
+                       (.getURLs)
+                       (map #(.getFile ^java.net.URL %))
+                       (filter #(.endsWith ^String % ".jar")))
+        compiler-path (some (fn [^:private path]
+                              (if (.contains path "com/github/luxlang/luxc-jvm")
+                                path
+                                nil))
+                            jar-paths)
+        deps-paths (filter (fn [^:private path]
+                             (or (.contains path "org/ow2/asm/asm-all")
+                                 (.contains path "org/clojure/core.match")
+                                 (.contains path "org/clojure/clojure")))
+                           jar-paths)]
+    (let [class-path (->> (classpath/get-classpath project) (filter #(.endsWith % ".jar")) (concat deps-paths) (interpose ":") (reduce str ""))
+          java-cmd (get project :java-cmd "java")
+          jvm-opts (->> (get project :jvm-opts) (interpose " ") (reduce str ""))]
+      (str java-cmd " " jvm-opts " " vm-options " -cp " (str compiler-path ":" class-path)
+           " lux repl " (->> source-paths (interpose unit-separator) (apply str))))))
+
+(defn run-process [command working-directory pre post]
+  (let [process (.exec (Runtime/getRuntime) command nil working-directory)]
+    (with-open [std-out (->> process .getInputStream (new InputStreamReader) (new BufferedReader))
+                std-err (->> process .getErrorStream (new InputStreamReader) (new BufferedReader))]
+      (println pre)
+      (loop [line (.readLine std-out)]
+        (when line
+          (println line)
+          (recur (.readLine std-out))))
+      (loop [had-error? false
+             line (.readLine std-err)]
+        (if line
+          (do (println line)
+            (recur true (.readLine std-err)))
+          (when had-error?
+            (System/exit 1))))
+      (println post))))