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௏ౣܽݍ࠽٘झ௼݀౟ ,PUMJO,PSFB.FFUVQ 

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௏ౣܽݍӒېٜ

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@importre • Jaewe Heo ೲ੤ਤ @ !iiid! ܡ੉٘! • Kotlin Korea • Android • ReactiveX • Probot for Github automation • ...

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׼न਷ • Kotlin • Gradle • Gradle with Kotlin DSL1 1 kotlin-dsl: Kotlin language support for Gradle build scripts

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য়ט਷ • ௏ౣܽਵ۽ Ӓېٜ ೒۞Ӓੋ ٜ݅ӝ • ੉޷ ઓ੤ೞח ׼न੄ ೐۽ં౟ী ੸ਊೞӝ

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Ҷ੉৵ 

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زӝ

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Բ৉Բ৉ • ҅ࣘ ӡয૑ח build.gradle • apply from: ...? • ೒۞Ӓੋ? • Groovy • ز੸ ೐۽Ӓې߁ ঱য • ੗ز৮ࢿ !

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੉ઁח • Groovy Kotlin • ࠽٘झ௼݀౟/೒۞Ӓੋ/উ٘۽੉٘ ੌਗച • ز੸ ъ۱ೠ ੿੸ ఋੑ੄ ೐۽Ӓې߁ ঱য • ੗ز৮ࢿ !

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೒۞Ӓੋٜ݅ӝ

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೒۞Ӓੋٜ݅ӝ ௏ౣܽਵ۽

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݅٘חߑߨ • build.gradle Groovy ৔৉੉פ ֤৻۽ • buildSrc ೐۽ં౟ • or ة݀੸ੋStandalone ೐۽ં౟

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buildSrc೐۽ં౟ $rootProject/buildSrc/ • ೒۞Ӓੋ ௏٘ܳ ੘ࢿೞݶ • ࠽٘झ௼݀౟ classpathী ನೣغয • ݫੋ/ࢲ࠳ ݽٕٜ੄ ࠽٘झ௼݀౟ীࢲ ࢎਊ оמ • ҕਬ ࠛо • ݫੋ ݽٕਸ ߩযաݶ ॶ ࣻ হ਺

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ة݀੸ੋStandalone೐۽ં౟ • buildSrc৬ ࠺त • ডр੄ ࢸ੿੉ ؊ ೙ਃ • ҕਬ оמ https://plugins.gradle.org

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ѐߊജ҃

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ѐߊജ҃ Dependency Version Android Studio 3.1.3 Android Gradle Plugin 3.2.0-beta01 Gradle Wrapper 4.7

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(SBEMFীٮܲ,PUMJO%4-ߡ੹ Gradle Wrapper Kotlin DSL Kotlin 4.8 0.17.5 1.2.4x 4.7 0.16.3 1.2.3x 4.6 0.15.6 1.2.2x 2 Releases: https://github.com/gradle/kotlin-dsl/releases

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݅٘חߑߨ

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GreetingPlugin GFBUbuildSrc 1. buildSrc ٣۩షܻ ࢤࢿ 2. buildSrc/build.gradle.kts ࢤࢿ 3. Ӓېٜ ೒۞Ӓੋ ߂ కझ௼ ੘ࢿ 4. ӝઓ ࠽٘झ௼݀౟build.gradle ী ੸ਊ 5. కझ௼ प೯

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buildSrc٣۩షܻ߂झ௼݀౟౵ੌࢤࢿ % # ܖ౟ ೐۽ં౟ীࢲ % mkdir -p buildSrc/src % touch buildSrc/build.gradle.kts

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buildSrc٣۩షܻ߂झ௼݀౟౵ੌࢤࢿ % # ܖ౟ ೐۽ં౟ীࢲ % mkdir -p buildSrc/src/main/kotlin/importre % touch buildSrc/build.gradle.kts

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Ӓېٜ೒۞Ӓੋ߂కझ௼੘ࢿ class GreetingPlugin : Plugin { private fun greeting(): String = "Hello, World!" override fun apply(project: Project): Unit = project.run { tasks { "greeting" { group = "kotlin-flavored" description = "௏ౣܽ ݍ Ӓېٜ ೒۞Ӓੋ" doLast { .run( ::println) } } } } }

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Ӓېٜ೒۞Ӓੋ߂కझ௼੘ࢿ class GreetingPlugin : Plugin { private fun greeting(): String = "Hello, World!" override fun apply(project: Project): Unit = project.run { tasks { "greeting" { group = "kotlin-flavored" description = "௏ౣܽ ݍ Ӓېٜ ೒۞Ӓੋ" doLast { greeting().run( ::println) } } } } }

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Ӓېٜ೒۞Ӓੋ߂కझ௼੘ࢿ class GreetingPlugin : Plugin { private fun greeting(): String = "Hello, World!" override fun apply(project: Project): Unit = project.run { tasks { "greeting" { group = "kotlin-flavored" description = "௏ౣܽ ݍ Ӓېٜ ೒۞Ӓੋ" doLast { greeting().run( ::println) } } } } }

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Ӓېٜ೒۞Ӓੋ߂కझ௼੘ࢿ class GreetingPlugin : Plugin { private fun greeting(): String = "Hello, World!" override fun apply(project: Project): Unit = project.run { tasks { "greeting" { group = "kotlin-flavored" description = "௏ౣܽ ݍ Ӓېٜ ೒۞Ӓੋ" doLast { greeting().run( ::println) } } } } }

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ࢤࢿೠ೒۞Ӓੋ֢୹ plugins { `kotlin-dsl` `java-gradle-plugin` } gradlePlugin { (plugins) { "greeting-plugin" { id = "greeting" implementationClass = "importre.GreetingPlugin" } } } 3 java-gradle-plugin: https://docs.gradle.org/current/userguide/java_gradle_plugin.html

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ࢤࢿೠ೒۞Ӓੋ֢୹ plugins { `kotlin-dsl` `java-gradle-plugin` } gradlePlugin { (plugins) { "greeting-plugin" { id = "greeting" implementationClass = "importre.GreetingPlugin" } } } 3 java-gradle-plugin: https://docs.gradle.org/current/userguide/java_gradle_plugin.html

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ࢤࢿೠ೒۞Ӓੋ֢୹ plugins { `kotlin-dsl` `java-gradle-plugin` } gradlePlugin { (plugins) { "greeting-plugin" { id = "greeting" implementationClass = "importre.GreetingPlugin" } } } 3 java-gradle-plugin: https://docs.gradle.org/current/userguide/java_gradle_plugin.html

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ࢤࢿೠ೒۞Ӓੋ֢୹ plugins { `kotlin-dsl` `java-gradle-plugin` } gradlePlugin { (plugins) { // As an expression "greeting-plugin" { id = "greeting" implementationClass = "importre.GreetingPlugin" } } } 3 java-gradle-plugin: https://docs.gradle.org/current/userguide/java_gradle_plugin.html

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ӝઓ࠽٘झ௼݀౟build.gradleী੸ਊ apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: 'greeting' android { // ...

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ӝઓ࠽٘झ௼݀౟build.gradleী੸ਊ apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: 'greeting' android { // ...

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కझ௼प೯ % ./gradlew -q greeting Hello, World!

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࡮աझ೒۞Ӓੋ੊झబ࣌

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(PBMuserNameࢸ੿ apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: 'greeting' greeting { userName = "Kotlin" } android { // ...

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(PBMకझ௼प೯ % ./gradlew -q greeting Hello, Kotlin

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੊झబ࣌ࢤࢿ package importre /** * [GreetingPlugin] Extension * * @property userName for **greeting ** */ open class GreetingExt( var userName: String? = null )

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కझ௼ীݒೝ class GreetingPlugin : Plugin { private fun greeting(userName: String?) = "Hello, ${userName ?: "World"}!" override fun apply(project: Project): Unit = project.run { val ext = extensions.create("greeting", GreetingExt ::class.java) tasks { "greeting" { group = "kotlin-flavored" description = "௏ౣܽ ݍ Ӓېٜ ೒۞Ӓੋ" doLast { greeting(ext.userName).run( ::println) } } } } }

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కझ௼ীݒೝ class GreetingPlugin : Plugin { private fun greeting(userName: String?) = "Hello, ${userName ?: "World"}!" override fun apply(project: Project): Unit = project.run { val ext = extensions.create("greeting", GreetingExt ::class.java) tasks { "greeting" { group = "kotlin-flavored" description = "௏ౣܽ ݍ Ӓېٜ ೒۞Ӓੋ" doLast { greeting(ext.userName).run( ::println) } } } } }

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కझ௼प೯ % ./gradlew -q greeting Hello, Kotlin

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݅٘חߑߨ

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GreetingPlugin GFBU4UBOEBMPOF 1. ݃਺؀۽ ٣۩షܻ ࢤࢿ 2. ೒۞Ӓੋ ҳഅ 3. ӝઓ ࠽٘झ௼݀౟৬ Composit 4. ӝઓ ࠽٘झ௼݀౟build.gradle ী ੸ਊ 5. కझ௼ प೯

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೒۞Ӓੋ೐۽ં౟ࢤࢿ % # `plugins` ߃ী `greeting` ࢤࢿ % take plugins/greeting % gradle init --type basic --dsl kotlin

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೒۞Ӓੋ೐۽ં౟ࢤࢿ % # `plugins` ߃ী `greeting` ࢤࢿ % take plugins/greeting % gradle init --type basic --dsl kotlin

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DGgradle init Task name Type Description init InitBuild Generates a Gradle project • Types of InitBuild • java-application • java-library • scala-library • ... • basic

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DGgradle initXJUIkotiln-dsl $ gradle init --type java-library --dsl kotlin $ tree . ├── build.gradle.kts ├── gradle │ └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── settings.gradle.kts └── src ├── main │ └── java │ └── Library.java └── test └── java └── LibraryTest.java 7 directories, 8 files

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DGgradle initXJUIkotiln-dsl $ gradle init --type java-library --dsl kotlin $ tree . ├── build.gradle.kts ├── gradle │ └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── settings.gradle.kts └── src ├── main │ └── java │ └── Library.java └── test └── java └── LibraryTest.java 7 directories, 8 files

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೒۞Ӓੋҳഅ খࢲ ҳഅೠ Ѫҗ ӝઓҗ زੌ !

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$PNQPTJU#VJMET • ݣ౭ ࠽٘৬ ࠽तೞա ة݀੸ਵ۽ ѐߊೞҊ ನೣदఆ ࣻ ੓਺ • include؀न includeBuild ೣࣻܳ ࢎਊ • settings.gradle੉ ੓যঠ ೣ • ӝઓ ೐۽ં౟੄ ੉ܴҗ ઺ࠂೲਊ ࠛо 4 Composite Builds: https://docs.gradle.org/current/userguide/composite_builds.html

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settings.gradle include ':app' includeBuild('./plugins/greeting') { dependencySubstitution { substitute module('com.importre.example:greeting') with project(':') } }

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settings.gradle include ':app' includeBuild('./plugins/greeting') { dependencySubstitution { substitute module('com.importre.example:greeting') with project(':') } }

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settings.gradle include ':app' includeBuild('./plugins/greeting') { dependencySubstitution { substitute module('com.importre.example:greeting') with project(':') } }

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settings.gradle include ':app' includeBuild('./plugins/greeting') { dependencySubstitution { substitute module('com.importre.example:greeting') with project(':') } }

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ӝઓ࠽٘झ௼݀౟build.gradleী੸ਊ buildscript { dependencies { classpath 'com.importre.example:greeting' } } apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: 'greeting' android {

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ӝઓ࠽٘झ௼݀౟build.gradleী੸ਊ buildscript { dependencies { classpath 'com.importre.example:greeting' } } apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin: 'kotlin-android-extensions' apply plugin: 'greeting' android {

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కझ௼प೯ % # Root Project % ./gradlew -q greeting Hello, World!

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ਃড

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ਃড • buildSrc ೐۽ં౟ • buildSrc ࢤࢿ • ೒۞Ӓੋ ҳഅ • ӝઓ ೐۽ં౟ী ೒۞Ӓੋ ੸ਊ • ೒۞Ӓੋ ഛ੢ ҳഅ ߂ ੸ਊ • ة݀੸ੋStandalone ೐۽ં౟ • ೒۞Ӓੋ ೐۽ં౟ ࢤࢿ • ೒۞Ӓੋ ҳഅ • ӝઓ ೐۽ં౟ী ೒۞Ӓੋ ನೣ • ӝઓ ೐۽ં౟ী ೒۞Ӓੋ ੸ਊ

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݃ޖܻ • ੉޷ ழ૓ झ௼݀౟ܳ ೠߣী gradle.build.kts۽ ৤ӝӝূ ൨ٝ • ೞաঀ ৤ѹࢲ build.gradle ୭ࣗച • ੘ই૓ build.gradleਸ build.gradle.kts۽ ߸ജ

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ઁউ • buildSrc ೐۽ં౟ • ই૒ হ׮ݶ ੉઱ द੘ • ة݀੸ੋStandalone ೐۽ં౟ • ੉޷ buildSrcо ੓Ѣա • ݧ૓ ೒۞Ӓੋਸ ҳഅ ߂ ҕਬ & ߓನ

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Ѿҗޛ • Github • importre/kotlin-flavored-buildscripts • Speakerdeck • importre/kotlin-flavored-buildscripts

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ӒܻҊ

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਋ܻח ଻ਊ઺

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!iiid!

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get rid of sth — ~ਸ ઁѢೞ׮, হগ׮

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WE ARE HIRING! !iiid! : AI-based EdTech • যରೖ ؋૕ೡѢ ೯ࠂೞѱ ؋૕ೞ੗ • ࢑ఋష੊ • ష੊೟ਗ ӝࣿഥࢎ • ...

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ನ૑࣌ • AI Scientist / Data Engineer • Android • Backend • iOS • or Something else • e.g. Content Developers Headless CMS5 5 CMS: Content Management System

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хࢎ೤פ׮

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૕ޙ ੓ਵनоਃ