implement chapter3

chapter3/build.gradle.kts

@@ -0,0 +1,59 @@
+plugins {
+    kotlin("multiplatform") version "1.5.10"
+}
+
+repositories {
+    mavenCentral()
+}
+
+kotlin {
+    macosX64("chapter3") { // on macOS
+        // linuxX64("native") // on Linux
+        // mingwX64("native") // on Windows
+        compilations["main"].cinterops {
+            val sdl by creating {
+                includeDirs("/usr/local/include/SDL")
+                includeDirs.headerFilterOnly("/usr/local/include")
+            }
+        }
+        compilations["main"].enableEndorsedLibs = true
+        binaries {
+            executable {
+                entryPoint = "chapter3.main"
+
+                val distTaskName = linkTaskName.replaceFirst("link", "dist")
+                val distTask = tasks.register<Copy>(distTaskName) {
+                    from("src/chapter3Main/resources")
+                    into(linkTask.outputFile.get().parentFile)
+                    dependsOn(linkTask)
+                }
+                tasks["assemble"].dependsOn(distTask)
+
+                runTask?.workingDir(project.provider { outputDirectory })
+            }
+        }
+    }
+    sourceSets {
+        commonMain {
+            dependencies {
+                implementation("org.jetbrains.kotlinx:kotlinx-cli:0.3.2")
+            }
+        }
+    }
+}
+
+buildscript {
+    dependencies {
+        classpath("org.jlleitschuh.gradle:ktlint-gradle:10.1.0")
+    }
+}
+
+tasks.withType<Wrapper> {
+    gradleVersion = "6.7.1"
+    distributionType = Wrapper.DistributionType.BIN
+}
+
+apply {
+    plugin("org.jlleitschuh.gradle.ktlint")
+    from("ktlint.gradle.kt")
+}

chapter3/gradle.properties

@@ -0,0 +1,50 @@
+#
+# Copyright 2010-2019 JetBrains s.r.o.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# A version of the Kotlin compiler that is used to build Kotlin/Native.
+buildKotlinVersion=1.5.0-RC-556
+buildKotlinCompilerRepo=https://cache-redirector.jetbrains.com/maven.pkg.jetbrains.space/kotlin/p/kotlin/bootstrap
+remoteRoot=konan_tests
+kotlinCompilerRepo=https://teamcity.jetbrains.com/guestAuth/app/rest/builds/buildType:(id:Kotlin_KotlinPublic_Compiler),number:1.5.10-871,branch:default:any,pinned:true/artifacts/content/maven
+kotlinVersion=1.5.10-871
+kotlinStdlibRepo=https://teamcity.jetbrains.com/guestAuth/app/rest/builds/buildType:(id:Kotlin_KotlinPublic_Compiler),number:1.5.10-871,branch:default:any,pinned:true/artifacts/content/maven
+kotlinStdlibVersion=1.5.10-871
+kotlinStdlibTestsVersion=1.5.10-871
+testKotlinCompilerVersion=1.5.10-871
+konanVersion=1.5.10
+
+# A version of Xcode required to build the Kotlin/Native compiler.
+xcodeMajorVersion=12
+
+# A GTest revision used to test the runtime.
+# The latest release GTest (1.10.0) doesn't properly register skipped tests in an XML-report.
+# Therefore we use a fixed commit form the master branch where this problem is already fixed.
+# https://github.com/google/googletest/commit/07f4869221012b16b7f9ee685d94856e1fc9f361
+gtestRevision=07f4869221012b16b7f9ee685d94856e1fc9f361
+
+org.gradle.jvmargs='-Dfile.encoding=UTF-8'
+org.gradle.workers.max=4
+slackApiVersion=1.2.0
+ktorVersion=1.2.1
+shadowVersion=5.1.0
+metadataVersion=0.0.1-dev-10
+
+# Uncomment to compile Kotlin/Native backend modules with JVM IR backend.
+# kotlin.build.useIR=true
+
+# Uncomment to enable composite build
+#kotlinProjectPath=<insert the path to Kotlin project root here>
+kotlin.native.cacheKind.macosX64=none

chapter3/gradle/kotlinGradlePlugin.gradle

@@ -0,0 +1,37 @@
+def properties = ['buildKotlinVersion', 'buildKotlinCompilerRepo', 'kotlinVersion', 'kotlinCompilerRepo']
+
+for (prop in properties) {
+    if (!hasProperty(prop)) {
+        throw new GradleException("Please ensure the '$prop' property is defined before applying this script.")
+    }
+}
+
+project.buildscript.repositories {
+    maven {
+        url buildKotlinCompilerRepo
+    }
+    maven {
+        url kotlinCompilerRepo
+    }
+    maven {
+        url 'https://cache-redirector.jetbrains.com/maven-central'
+    }
+    mavenCentral()
+}
+
+project.buildscript.dependencies {
+    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
+}
+configurations {
+    kotlinCompilerClasspath
+}
+project.repositories {
+    maven { url buildKotlinCompilerRepo }
+    maven {
+        url kotlinCompilerRepo
+    }
+}
+
+project.dependencies {
+    kotlinCompilerClasspath("org.jetbrains.kotlin:kotlin-compiler-embeddable:$buildKotlinVersion")
+}

chapter3/gradle/loadRootProperties.gradle

@@ -0,0 +1,16 @@
+if (!project.hasProperty("rootBuildDirectory")) {
+    throw new GradleException('Please ensure the "rootBuildDirectory" property is defined before applying this script.')
+}
+
+ext.distDir = file("$rootBuildDirectory/dist")
+
+def rootProperties = new Properties()
+def rootDir = file(rootBuildDirectory).absolutePath
+file("$rootDir/gradle.properties").withReader {
+    rootProperties.load(it)
+}
+rootProperties.each { k, v ->
+    if (!project.hasProperty(k)) {
+        ext.set(k, v)
+    }
+}

chapter3/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.7-all.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

chapter3/gradlew

@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  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 "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+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 or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; 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=`expr $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
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"