Add multi-kotlin-project sample

A sample demonstrating configuration injection in a multi-project build
comprising two Kotlin projects.

See #137

samples/README.md

@@ -13,6 +13,7 @@ The Gradle projects in this directory demonstrate typical use cases with and fea
  - [`modularity`](./modularity): demonstrates the use of `applyFrom` to modularize build scripts
  - [`hello-kotlin`](./hello-kotlin): demonstrates a Kotlin-based Gradle build script for a project that is itself written in Kotlin
  - [`hello-android`](./hello-android): demonstrates a Kotlin-based Gradle build script for a Kotlin-based Android project
+ - [`multi-kotlin-project`](./multi-kotlin-project): demonstrates a [multi-project build](https://docs.gradle.org/current/userguide/multi_project_builds.html) comprising two Kotlin based projects
 
 
 Set up dev environment

samples/hello-kotlin/build.gradle.kts

@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath(kotlinModule("gradle-plugin"))
+        classpath(kotlinModule("gradle-plugin", version = "1.0.3"))
     }
 }
 
@@ -23,5 +23,5 @@ repositories {
 }
 
 dependencies {
-    compile(kotlinModule("stdlib"))
+    compile(kotlinModule("stdlib", version = "1.0.3"))
 }

samples/multi-kotlin-project/README.md

@@ -0,0 +1,21 @@
+multi-kotlin-project
+====================
+
+A multi-project build with two Kotlin based projects:
+
+ 1. [core](./core) implements the main algorithm to compute the answer to the ultimate question of Life, the Universe and Everything
+ 2. [cli](./cli) implements the command line interface
+
+Gradle Script Kotlin support is enabled recursively for all projects in [settings.gradle](./settings.gradle#L3).
+
+Common behavior for all projects, such as the configuration of _group_, _version_ and _repositories_, is defined in the [root project build script](./build.gradle.kts).
+
+Plugin application and dependency configuration is segregated to each separate subproject.
+
+Run with:
+
+    ./gradlew run
+
+Check all project dependencies with:
+
+    ./gradlew dependencies

samples/multi-kotlin-project/build.gradle.kts

@@ -0,0 +1,21 @@
+allprojects {
+
+    group = "org.gradle.script.kotlin.samples.multiproject"
+
+    version = "1.0"
+
+    configure(listOf(repositories, buildscript.repositories)) {
+        gradleScriptKotlin()
+    }
+}
+
+apply {
+    plugin("base")
+}
+
+dependencies {
+    // Make the root project archives configuration depend on every subproject
+    subprojects.forEach {
+        archives(it)
+    }
+}

samples/multi-kotlin-project/cli/build.gradle.kts

@@ -0,0 +1,19 @@
+buildscript {
+    dependencies {
+        classpath(kotlinModule("gradle-plugin"))
+    }
+}
+
+apply {
+    plugin("kotlin")
+    plugin<ApplicationPlugin>()
+}
+
+configure<ApplicationPluginConvention> {
+    mainClassName = "cli.Main"
+}
+
+dependencies {
+    compile(project(":core"))
+    compile(kotlinModule("stdlib"))
+}

samples/multi-kotlin-project/cli/src/main/kotlin/cli/Main.kt

@@ -0,0 +1,9 @@
+@file:JvmName("Main")
+package cli
+
+import core.*
+
+fun main(vararg args: String) {
+    val answer = DeepThought.compute()
+    println("The answer to the ultimate question of Life, the Universe and Everything is $answer.")
+}

samples/multi-kotlin-project/core/build.gradle.kts

@@ -0,0 +1,9 @@
+buildscript {
+    dependencies {
+        classpath(kotlinModule("gradle-plugin"))
+    }
+}
+
+apply {
+    plugin("kotlin")
+}

samples/multi-kotlin-project/core/src/main/kotlin/core/DeepThought.kt

@@ -0,0 +1,5 @@
+package core
+
+object DeepThought {
+    fun compute() = 42
+}

samples/multi-kotlin-project/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://repo.gradle.org/gradle/dist-snapshots/gradle-script-kotlin-3.1-20160908214640+0000-all.zip

samples/multi-kotlin-project/gradlew

@@ -0,0 +1,169 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [[ "$(uname)" == "Darwin" ]] && [[ "$HOME" == "$PWD" ]]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

samples/multi-kotlin-project/gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

samples/multi-kotlin-project/settings.gradle

@@ -0,0 +1,8 @@
+def configureGradleScriptKotlinOn(ProjectDescriptor project) {
+    project.buildFileName = 'build.gradle.kts'
+    project.children.each { configureGradleScriptKotlinOn(it) }
+}
+
+include 'cli', 'core'
+
+configureGradleScriptKotlinOn rootProject