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Gradle BOM import Ͱ
ϥΠϒϥϦόʔδϣϯཧ
Kohei Yamamoto
DroidKaigi2019 Day2 11:20-11:50 Room3
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ҰॠͰΘ͔Δ Gradle BOM import ͰϥΠϒϥϦόʔδϣϯཧ
dependencies {
implementation platform('com.squareup.okhttp3:okhttp-bom:3.12.0')
implementation 'com.squareup.okhttp3:okhttp'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
dependencies {
implementation 'com.squareup.okhttp3:okhttp:3.12.0'
implementation 'com.squareup.okhttp3:okhttp-tls:3.12.0'
implementation 'com.squareup.okhttp3:okhttp-urlconnection:3.12.0'
implementation 'com.squareup.okhttp3:logging-interceptor:3.12.0'
testImplementation 'com.squareup.okhttp3:mockwebserver:3.12.0'
}
↓
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Profile
Name : Kohei Yamamoto
Job : Android Engineer in teamLab
GitHub : gyamoto
Twitter : farundorl
PokemonGo : 3729 7371 0759
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No content
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About teamLab (digital art)
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About teamLab (digital art)
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σδλϧΞʔτ͚ͩ͡Όͳͯ͘ɺ
\ ࣮ŊνʔϜϥϘͬͯ /
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ΞϓϦWebαʔϏε։ൃ
ͬͯ·͢
\ ࣮ŊνʔϜϥϘͬͯ /
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Gradle BOM import ͰϥΠϒϥϦόʔδϣϯཧ
1. Gradle
• Gradle & Android
• Dependency Management
2. BOM
• Gradle BOM Import
• [Q] Version Conflict?
• [nits] For Gradle 4.6
• [nits] Dependency Constraint
3. Future
• For Library Creator
• For Team Develop ?
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Specification
• Android Studio : 3.4 Beta3
• Gradle version : 5.1.1 (and 4.6)
• Gradle script : Groovy
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Ͳ͜·Ͱ
ϥΠϒϥϦͷόʔδϣϯΛ
ཧͯ͠·͔͢ʁ
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Dependency management
• ࡢࠓͷΞϓϦ։ൃͰϥΠϒϥϦΛ͏͜ͱ͕Ұൠత
• ϥΠϒϥϦͷଟ͘ϦϙδτϦʹϗεςΟϯά͞Ε͍ͯΔ
• Gradleܦ༝ͰґଘੑΛղܾͯ͠ɺϩʔΧϧͰ࣮ߦ͍ͯ͠Δ
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Level1: def xxx_version = '1.2.3'
Dependency management
dependencies {
// Example: Retrofit (HTTP Client Library)
implementation 'com.squareup.retrofit2:retrofit:2.5.0'
implementation 'com.squareup.retrofit2:adapter-rxjava2:2.5.0'
implementation 'com.squareup.retrofit2:converter-moshi:2.5.0'
implementation 'com.squareup.retrofit2:retrofit-mock:2.5.0'
}
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Level1: def xxx_version = '1.2.3'
Dependency management
dependencies {
// Example: Retrofit (HTTP Client Library)
implementation 'com.squareup.retrofit2:retrofit:2.5.0'
implementation 'com.squareup.retrofit2:adapter-rxjava2:2.5.0'
implementation 'com.squareup.retrofit2:converter-moshi:2.5.0'
implementation 'com.squareup.retrofit2:retrofit-mock:2.5.0'
}
~~~~~
~~~~~
~~~~~
~~~~~
'2.5.0' x 4
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Level1: def xxx_version = '1.2.3'
Dependency management
dependencies {
def retrofit_version = '2.5.0'
implementation "com.squareup.retrofit2:retrofit:$retrofit_version"
implementation "com.squareup.retrofit2:adapter-rxjava2:$retrofit…"
implementation "com.squareup.retrofit2:converter-moshi:$retrofit…"
implementation "com.squareup.retrofit2:retrofit-mock:$retrofit…"
}
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dependencies {
implementation 'com.google.firebase:firebase-core:16.0.6'
implementation 'com.google.firebase:firebase-auth:16.1.0'
implementation 'com.google.firebase:firebase-perf:16.2.3'
implementation 'com.google.firebase:firebase-storage:16.0.5'
implementation 'com.google.firebase:firebase-firestore:18.0.0'
implementation 'com.google.firebase:firebase-messaging:17.3.4'
}
app/build.gradle
Level2: def version in ext
Dependency management
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dependencies {
implementation 'com.google.firebase:firebase-core:16.0.6'
implementation 'com.google.firebase:firebase-auth:16.1.0'
implementation 'com.google.firebase:firebase-perf:16.2.3'
implementation 'com.google.firebase:firebase-storage:16.0.5'
implementation 'com.google.firebase:firebase-firestore:18.0.0'
implementation 'com.google.firebase:firebase-messaging:17.3.4'
}
app/build.gradle, foo/build.gradle, bar/build.gradle, piyo/build.gradle, etc…
Level2: def version in ext
Dependency management
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dependencies {
implementation 'com.google.firebase:firebase-core:16.0.6'
implementation 'com.google.firebase:firebase-auth:16.1.0'
implementation 'com.google.firebase:firebase-perf:16.2.3'
implementation 'com.google.firebase:firebase-storage:16.0.5'
implementation 'com.google.firebase:firebase-firestore:18.0.0'
implementation 'com.google.firebase:firebase-messaging:17.3.4'
}
app/build.gradle, foo/build.gradle, bar/build.gradle, piyo/build.gradle, etc…
core: 16.0.6
auth: 16.1.0
pref: 16.2.3
storage: 16.0.5
firestore: 18.0.0
messaging: 17.3.4
16.0.2
15.1.0
16.2.0
16.0.0
17.0.0
17.3.2
16.0.3
16.0.0
16.2.1
16.0.2
17.1.5
17.3.3
15.0.2
15.0.0
16.2.3
15.0.2
16.0.0
17.1.0
Level2: def version in ext
Dependency management
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dependencies {
implementation 'com.google.firebase:firebase-core:16.0.6'
implementation 'com.google.firebase:firebase-auth:16.1.0'
implementation 'com.google.firebase:firebase-perf:16.2.3'
implementation 'com.google.firebase:firebase-storage:16.0.5'
implementation 'com.google.firebase:firebase-firestore:18.0.0'
implementation 'com.google.firebase:firebase-messaging:17.3.4'
}
app/build.gradle, foo/build.gradle, bar/build.gradle, piyo/build.gradle, etc…
core: 16.0.6
auth: 16.1.0
pref: 16.2.3
storage: 16.0.5
firestore: 18.0.0
messaging: 17.3.4
16.0.2
15.1.0
16.2.0
16.0.0
17.0.0
17.3.2
16.0.3
16.0.0
16.2.1
16.0.2
17.1.5
17.3.3
15.0.2
15.0.0
16.2.3
15.0.2
16.0.0
17.1.0
Level2: def version in ext
Dependency management
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ext {
kotlin_version = '1.3.20'
...
firebase_core_version = '16.0.6'
firebase_auth_version = '16.1.0'
firebase_pref_version = '16.2.3'
firebase_storage_version = '16.0.5'
firebase_firestore_version = '18.0.0'
firebase_messaging_version = '17.3.4'
...
}
dependencies.gradle
Level2: def version in ext
Dependency management
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dependencies {
implementation "com.google.firebase:firebase-core:$..."
implementation "com.google.firebase:firebase-auth:$..."
implementation "com.google.firebase:firebase-perf:$..."
implementation "com.google.firebase:firebase-storage:$..."
implementation "com.google.firebase:firebase-firestore:$..."
implementation "com.google.firebase:firebase-messaging:$..."
}
app/build.gradle, foo/build.gradle, bar/build.gradle, piyo/build.gradle, etc…
Level2: def version in ext
Dependency management
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app/build.gradle, foo/build.gradle, bar/build.gradle, piyo/build.gradle, etc…
Level3: define dependencies in ext
Dependency management
dependencies {
implementation "com.google.firebase:firebase-core:$..."ɹɹɹɹ
implementation "com.google.firebase:firebase-auth:$..."ɹɹɹɹ
implementation "com.google.firebase:firebase-perf:$..."ɹɹɹɹ
implementation "com.google.firebase:firebase-storage:$..."
implementation "com.google.firebase:firebase-firestore:$..."
implementation "com.google.firebase:firebase-messaging:$..."
}
Group ID Artifact ID Version
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ext {
versions = [
kotlin : '1.3.20',
okhttp : '3.12.1',
]
depends = [
kotlin : [
stdlib : "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$versions.kotlin",
junit : "org.jetbrains.kotlin:kotlin-test-junit:$versions.kotlin",
],
firebase : [
core : 'com.google.firebase:firebase-core:16.0.6',
...
],
dependencies.gradle
Level3: define dependencies in ext
Dependency management
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Level3: define dependencies in ext
Dependency management
dependencies {
implementation depends.kotlin.stdlib
implementation depends.kotlin.junit
implementation depends.firebase.core
implementation depends.firebase.auth
implementation depends.firebase.pref
...
}
app/build.gradle, foo/build.gradle, bar/build.gradle, piyo/build.gradle, etc…
Add level4
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Level3: define dependencies in ext
Dependency management
• DroidKaigi/conference-app-2019
• buildSrcʹGroupID, ArtifactID, VersionΛఆٛ
• */build.gradle ͔Β `Dep.Kotlin.stdlibJvm` ͷΑ͏ʹࢀর
ref: https://github.com/DroidKaigi/conference-app-2019/blob/master/buildSrc/src/main/java/dependencies/Dep.kt
ref: https://github.com/DroidKaigi/conference-app-2019/blob/master/frontend/android/build.gradle
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Ͳ͜·Ͱ
ϥΠϒϥϦͷόʔδϣϯΛ
ཧͯ͠·͔͢ʁ
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Dependency management
dependencies {
def version = '1.2.3'
implementation "group:artifact:$version"
}
ext {
versions = '1.2.3'
}
dependencies {
implementation "group:artifact:$version"
}
ext {
version = '1.2.3'
depends = "group.artifact:$version"
}
dependencies {
implementation depends
}
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#
Dependency management
dependencies {
def version = '1.2.3'
implementation "group:artifact:$version"
}
ext {
versions = '1.2.3'
}
dependencies {
implementation "group:artifact:$version"
}
ext {
version = '1.2.3'
depends = "group.artifact:$version"
}
dependencies {
implementation depends
}
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#
Dependency management
dependencies {
def version = '1.2.3'
implementation "group:artifact:$version"
}
ext {
versions = '1.2.3'
}
dependencies {
implementation "group:artifact:$version"
}
ext {
version = '1.2.3'
depends = "group.artifact:$version"
}
dependencies {
implementation depends
}
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#
Dependency management
dependencies {
def version = '1.2.3'
implementation "group:artifact:$version"
}
ext {
versions = '1.2.3'
}
dependencies {
implementation "group:artifact:$version"
}
ext {
version = '1.2.3'
depends = "group.artifact:$version"
}
dependencies {
implementation depends
}
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Dependency management
• ͪΌΜͱϥΠϒϥϦͷόʔδϣϯΛཧ͢Δͷख͕͔͔ؒΔ
• ϥΠϒϥϦͷόʔδϣϯ͕ζϨ͍ͯͯͳ͍͜ͱͷํ͕
ଟ͍͚Ͳɺى͖Δͱ͖ى͖Δ…
• ඞཁͳ͜ͱͳͷͰ͔ͬ͠Γͬͯɺ։ൃͷΛҾͬுΔΑ͏ͳ
͜ͱΛආ͚͍ͨ
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Gradle
\ BOMͷલʹ͓͞Β͍ʂ /
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Gradle
• ΦʔϓϯιʔεͷϏϧυπʔϧ
• Groovy or Kotlin DSL
• Highly customizable & Fast & Powerful
\ Flexible! High Performance! /
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Gradle & Android
• AndroidͷެࣜϏϧυπʔϧͱͯ͠࠾༻
• Android Plugin for GradleʹΑͬͯΞϓϦͷίϯύΠϧɺ
ϥΠϒϥϦ/ґଘؔͷղܾɺςετͷ࣮ߦɺॺ໊ɺ
ApkͷύοέʔδઃఆͳͲΛఏڙ
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GradleͰґଘੑͷղܾ
Dependency management in Gradle
\ ͬͱৄ͘͠ /
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Dependency management in Gradle
android { ... }
dependencies {
// 1. Local binary dependency
implementation fileTree(dir: 'libs', include: ['*.jar'])
// 2. Dependency on the "core" module from this project
implementation project(':core')
// 3. Remote binary dependency
implementation 'androidx.appcompat:appcompat:1.0.2'
}
app/build.gradle
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Dependency management in Gradle
android { ... }
dependencies {
// 1. Local binary dependency
implementation fileTree(dir: 'libs', include: ['*.jar'])
// 2. Dependency on the "core" module from this project
implementation project(':core')
// 3. Remote binary dependency
implementation 'androidx.appcompat:appcompat:1.0.2'
}
app/build.gradle
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android { ... }
dependencies {
// 1. Local binary dependency
implementation fileTree(dir: 'libs', include: ['*.jar'])
// 2. Dependency on the "core" module from this project
implementation project(':core')
// 3. Remote binary dependency
implementation 'androidx.appcompat:appcompat:1.0.2'
}
app/build.gradle
Dependency management in Gradle
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android { ... }
dependencies {
// 1. Local binary dependency
implementation fileTree(dir: 'libs', include: ['*.jar'])
// 2. Dependency on the "core" module from this project
implementation project(':core')
// 3. Remote binary dependency
implementation 'androidx.appcompat:appcompat:1.0.2'
}
app/build.gradle
Dependency management in Gradle
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(SBEMF
#VJME
dependencies {
// 1. Local binary dependency
implementation fileTree(dir: 'libs', include: ['*.jar'])
// 2. Dependency on the "core" module from this project
implementation project(':core')
// 3. Remote binary dependency
implementation 'androidx.appcompat:appcompat:1.0.2'
}
Dependency management in Gradle
ref: https://docs.gradle.org/5.1.1/userguide/introduction_dependency_management.html#dependency_management_in_gradle
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(SBEMF
#VJME
dependencies {
// 1. Local binary dependency
implementation fileTree(dir: 'libs', include: ['*.jar'])
// 2. Dependency on the "core" module from this project
implementation project(':core')
// 3. Remote binary dependency
implementation 'androidx.appcompat:appcompat:1.0.2'
}
-PDBM'JMF
3FQPTJUPSZ
access
artifacts
Dependency management in Gradle
ref: https://docs.gradle.org/5.1.1/userguide/introduction_dependency_management.html#dependency_management_in_gradle
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(SBEMF
#VJME /FUXPSL
dependencies {
...
// 3. Remote binary dependency
implementation 'androidx.appcompat:appcompat:1.0.2'
}
download artifacts
Dependency management in Gradle
ref: https://docs.gradle.org/5.1.1/userguide/introduction_dependency_management.html#dependency_management_in_gradle
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(SBEMF
#VJME
.BWFO
3FQPTJUPSZ
*WZ
3FQPTJUPSZ
/FUXPSL
download artifacts
Dependency management in Gradle
ref: https://docs.gradle.org/5.1.1/userguide/introduction_dependency_management.html#dependency_management_in_gradle
dependencies {
...
// 3. Remote binary dependency
implementation 'androidx.appcompat:appcompat:1.0.2'
}
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(SBEMF
#VJME
.BWFO
3FQPTJUPSZ
*WZ
3FQPTJUPSZ
/FUXPSL
download artifacts
Dependency management in Gradle
*.module
*.pom
ivy.xml
module metadata
ref: https://docs.gradle.org/5.1.1/userguide/introduction_dependency_management.html#dependency_management_in_gradle
dependencies {
...
// 3. Remote binary dependency
implementation 'androidx.appcompat:appcompat:1.0.2'
}
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(SBEMF
#VJME
.BWFO
3FQPTJUPSZ
(SBEMF
$BDIF
*WZ
3FQPTJUPSZ
/FUXPSL
store/access
artifacts
download artifacts
Dependency management in Gradle
*.module
*.pom
ivy.xml
module metadata
ref: https://docs.gradle.org/5.1.1/userguide/introduction_dependency_management.html#dependency_management_in_gradle
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(SBEMF
#VJME
.BWFO
3FQPTJUPSZ
(SBEMF
$BDIF
-PDBM'JMF
3FQPTJUPSZ
*WZ
3FQPTJUPSZ
/FUXPSL
store/access
artifacts
download artifacts
access
artifacts
Dependency management in Gradle
*.module
*.pom
ivy.xml
module metadata
ref: https://docs.gradle.org/5.1.1/userguide/introduction_dependency_management.html#dependency_management_in_gradle
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BOM
\ ͓ͨͤ͠·ͨ͠ /
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BOM?
l#0. #JMMTPGNBUFSJBMT
ͱɺ
ۀͰ༻͍ΒΕΔ෦දͷҰܗଶͰ͋Δɻ
ΛΈཱͯΔ࣌ͷ෦ͷҰཡͱɺ
߹ʹΑͬͯ֊ߏΛද͢ɻz
ref: https://ja.wikipedia.org/wiki/BOM_(෦ද)
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BOM?
l#0. #JMMTPGNBUFSJBMT
ͱɺ
ۀͰ༻͍ΒΕΔ෦දͷҰܗଶͰ͋Δɻ
ΛΈཱͯΔ࣌ͷ෦ͷҰཡͱɺ
߹ʹΑͬͯ֊ߏΛද͢ɻz
ref: https://ja.wikipedia.org/wiki/BOM_(෦ද)
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BOM
• MavenͰΘΕ͍ͯΔPOM(Project Object Model) ͷ֦ு
• ؔ࿈ϥΠϒϥϦͷόʔδϣϯΛ·ͱΊͯఆٛ͢ΔΈ
• OkHttp : okhttp, okhttp-android-support, okhttp-***
• GCP : google-cloud-core, google-cloud-***, etc...
• AWS : aws-java-sdk-core, aws-java-sdk-***, etc...
• Gradle͔ΒModule metadataͱͯ͠ࢀরͰ͖Δ
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e.g. 'com.squareup.okhttp3:okhttp-bom:3.12.1'
BOM
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BOM
e.g. 'okhttp-bom-3.12.1.pom'
4.0.0
com.squareup.okhttp3
okhttp-bom
3.12.1
pom
OkHttp (Bill of Materials)
${project.groupId}
okhttp
${project.version}
${project.groupId}.groupId}
okhttp-tests
${project.version}
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BOM
e.g. 'okhttp-bom-3.12.1.pom'
${project.groupId}
okhttp
${project.version}
${project.groupId}
okhttp-tests
${project.version}
${project.groupId}
okhttp-android-support
${project.version}
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BOM
e.g. 'com.squareup.okhttp3:okhttp-bom:3.12.1'
e.g. okhttp-bom:3.12.1
| (Total: 24 dependencies)
├── okhttp:3.12.1
├── okhttp-tests:3.12.1
├── okhttp-android-support:3.12.1
├── okhttp-apache:3.12.1
├── okhttp-sse:3.12.1
├── okhttp-testing-support:3.12.1
├── okhttp-tls:3.12.1
├── okhttp-urlconnection:3.12.1
├── okhttp-logging-interceptor:3.12.1
├── okhttp-dnsoverhttps:3.12.1
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BOM
e.g. 'com.google.cloud:google-cloud-bom:0.79.0-alpha'
e.g. google-cloud-bom
| (Total: 154 dependencies)
├── google-cloud-core
├── google-cloud-automl
├── google-cloud-datastore
├── google-cloud-dialogflow
├── google-cloud-pubsub
├── google-cloud-storage
├── proto-google-common-protos
├── proto-google-cloud-iot-v1
├── grpc-google-common-protos
├── grpc-google-cloud-iot-v1
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BOM
e.g. 'com.amazonaws:aws-java-sdk-pom:1.11.490'
e.g. aws-java-sdk-pom
| (Total: 167 dependencies)
├── aws-java-sdk-core
├── aws-java-sdk-api-gateway
├── aws-java-sdk-s3
├── aws-java-sdk-iot
├── aws-java-sdk-lambda
├── aws-java-sdk-appsync
├── aws-java-sdk-mobile
├── aws-java-sdk-greengrass
├── aws-java-sdk-dynamodb
├── aws-java-sdk-cognitoidentity
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BOM
• BOMϑΝΠϧࣗମόʔδϣϯΛ࣋ͭɻ
ϥΠϒϥϦ܈͕৽͘͠ͳͬͨΒόʔδϣϯΛ্ॻ͖ͯ͠ɺ
৽͍͠όʔδϣϯͱͯ͠BOMϑΝΠϧΛެ։͢Δɻ
• όʔδϣϯใ͚ͩͳͷͰɺBOMϑΝΠϧΛࢀর͢Δ͜ͱͰ
༨ͳϥΠϒϥϦ͕Ճ͞ΕΔ͜ͱͳ͍ɻ
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BOM
• 20192݄࣌Ͱ OkHttp, SpringFramework, AWS,
GoogleCloud, JUnitͰBOMϑΝΠϧ͕ఏڙ͞Ε͍ͯΔ
• Androidؔ࿈ͷϥΠϒϥϦͰ΄ͱΜͲఏڙ͞Εͯͳ͍
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Gradle BOM import
\ ͬͱ͜͜·Ͱ͖ͨ /
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Gradle BOM import
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Gradle BOM import
• Dependency Version Alignment ͱͯ͠BOM importʹରԠ
• Gradle5.0͔Βਖ਼ࣜಋೖ
• Gradle4.6͔Βࢼݧಋೖ͞Ε͍ͯΔͷͰ༻Մೳ
ref: https://docs.gradle.org/5.0/release-notes.html#dependency-version-alignment
ref: https://docs.gradle.org/4.6/release-notes.html#bom-import
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Gradle BOM import
dependencies {
implementation 'com.squareup.okhttp3:okhttp:3.12.0'
implementation 'com.squareup.okhttp3:okhttp-tls:3.12.0'
implementation 'com.squareup.okhttp3:okhttp-urlconnection:3.12.0'
implementation 'com.squareup.okhttp3:logging-interceptor:3.12.0'
testImplementation 'com.squareup.okhttp3:mockwebserver:3.12.0'
}
app/build.gradle
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Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.0'
)
implementation 'com.squareup.okhttp3:okhttp:3.12.0'
implementation 'com.squareup.okhttp3:okhttp-tls:3.12.0'
implementation 'com.squareup.okhttp3:okhttp-urlconnection:3.12.0'
implementation 'com.squareup.okhttp3:logging-interceptor:3.12.0'
testImplementation 'com.squareup.okhttp3:mockwebserver:3.12.0'
}
app/build.gradle
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Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.0'
)
// define dependencies without versions
implementation 'com.squareup.okhttp3:okhttp'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
app/build.gradle
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͓Θ͔Γ͍͚ͨͩͨͩΖ͏͔ʁ
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Gradle BOM import
dependencies {
// ...
implementation 'com.squareup.okhttp3:okhttp:3.12.0'
implementation 'com.squareup.okhttp3:okhttp-tls:3.12.0'
implementation 'com.squareup.okhttp3:okhttp-urlconnection:3.12.0'
implementation 'com.squareup.okhttp3:logging-interceptor:3.12.0'
testImplementation 'com.squareup.okhttp3:mockwebserver:3.12.0'
}
app/build.gradle
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Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.0'
)
// define dependencies without versions
implementation 'com.squareup.okhttp3:okhttp'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
app/build.gradle
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Pros
Gradle BOM import
• ϥΠϒϥϦؒͰదͳόʔδϣϯΛఆٛͰ͖Δ
ʢBOMϑΝΠϧ͕ཏ͍ͯ͠ΔϥΠϒϥϦ܈ͷதͰʣ
• ϥΠϒϥϦ̍ͭ̍ͭʹόʔδϣϯΛॻ͔ͳͯ͘ࡁΉ
ʢDSLΛͯ͠ఆΛࢀর͠ͳͯ͘Α͘ͳΔʣ
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Cons
Gradle BOM import
• ͦͦ͋·Γීٴͯ͠ͳ͍…
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ext {
depends = [
okhttp : [
bom : 'com.squareup.okhttp3:okhttp-bom:3.12.0',
okhttp : 'com.squareup.okhttp3:okhttp',
tls : 'com.squareup.okhttp3:okhttp-tls',
urlconnection : 'com.squareup.okhttp3:okhttp-urlconnection',
logginginterceptor : 'com.squareup.okhttp3:logging-interceptor',
mockwebserver : 'com.squareup.okhttp3:mockwebserver',
],
...
]
}
dependencies.gradle
Define dependencies in ext
Gradle Bom import
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dependencies {
// import a BOM
implementation platform(depends.okhttp.bom)
// define dependencies without versions
implementation depends.okhttp.okhttp
implementation depends.okhttp.okhttp-tls
implementation depends.okhttp.okhttp-urlconnection
implementation depends.okhttp.logging-interceptor
testImplementation depends.okhttp.mockwebserver
...
}
app/build.gradle
Define dependencies in ext
Gradle Bom import
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.0'
)
implementation('com.squareup.okhttp3:okhttp:3.12.1') {
because 'Try new release'
}
...
}
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.0'
)
implementation('com.squareup.okhttp3:okhttp:3.12.1') {
because 'Try new release'
}
...
}
okhttp-bom: 3.12.0
okhttp: 3.12.1
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.1'
)
implementation 'com.squareup.okhttp3:okhttp:3.11.0'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
okhttp-bom: 3.12.0 < okhttp: 3.12.1
implementation platform(…) implementation '…'
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.1'
)
implementation 'com.squareup.okhttp3:okhttp:3.11.0'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
okhttp-bom: 3.12.1 ? okhttp: 3.12.0
implementation platform(…) implementation '…'
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.1'
)
implementation 'com.squareup.okhttp3:okhttp:3.11.0'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
okhttp-bom: 3.12.1 > okhttp: 3.12.0
implementation platform(…) implementation '…'
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.1'
)
implementation('com.squareup.okhttp3:okhttp:3.12.0') {
because 'Try new release'
}
...
}
okhttp-bom: 3.12.1
okhttp: 3.12.0 ~
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.1'
)
implementation('com.squareup.okhttp3:okhttp:3.12.0') {
force = true
}
...
}
okhttp-bom: 3.12.1
!! okhttp: 3.12.0 !!
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation platform(
'com.squareup.okhttp3:okhttp-bom:3.12.1'
)
implementation('com.squareup.okhttp3:okhttp:3.12.0') {
force = true
}
...
}
okhttp-bom: 3.12.1 < okhttp: 3.12.0
implementation platform(…) implementation('…') { force = true }
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation enforcedPlatform(
'com.squareup.okhttp3:okhttp-bom:3.12.0'
)
// this version will be overriden by the one found in the BOM
implementation 'com.squareup.okhttp3:okhttp:3.12.1'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
platform(…) → enforcedPlatform(…)
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation enforcedPlatform(
'com.squareup.okhttp3:okhttp-bom:3.12.0'
)
// this version will be overriden by the one found in the BOM
implementation 'com.squareup.okhttp3:okhttp:3.12.1'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
okhttp-bom: 3.12.0 > okhttp: 3.12.1
implementation enforcedPlatform(…) implementation '…'
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation enforcedPlatform(
'com.squareup.okhttp3:okhttp-bom:3.12.0'
)
// this version will be overriden by the one found in the BOM
implementation 'com.squareup.okhttp3:okhttp:3.12.1'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
okhttp-bom: 3.12.1 > okhttp: 3.12.0
implementation enforcedPlatform(…) implementation '…'
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[Q] Version conflict?
Gradle BOM import
dependencies {
// import a BOM
implementation enforcedPlatform(
'com.squareup.okhttp3:okhttp-bom:3.12.0'
)
// this version will be overriden by the one found in the BOM
implementation 'com.squareup.okhttp3:okhttp:3.12.1'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
okhttp-bom: 3.12.1 < okhttp: 3.12.0
implementation enforcedPlatform(…) implementation('…') { force = true }
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• Gradle4.6͔Βsettings.gradleʹه͢Δ͜ͱͰ༻Մೳ
ref: https://docs.gradle.org/4.6/release-notes.html#bom-import
enableFeaturePreview('IMPROVED_POM_SUPPORT')
[nits] For Gradle 4.6
Gradle BOM import
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[nits] For Gradle 4.6
Gradle BOM import
dependencies {
// import a BOM (Gradle 4.6~)
// No `enforced` behavior
implementation 'com.squareup.okhttp3:okhttp-bom:3.12.0'
// define dependencies without versions
implementation 'com.squareup.okhttp3:okhttp'
implementation 'com.squareup.okhttp3:okhttp-tls'
implementation 'com.squareup.okhttp3:okhttp-urlconnection'
implementation 'com.squareup.okhttp3:logging-interceptor'
testImplementation 'com.squareup.okhttp3:mockwebserver'
}
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[nits] Dependency constraint (≒ BOM)
Gradle BOM import
dependencies {
// define the version of dependencies declared in the build script
constraints {
implementation('org.apache.httpcomponents:httpclient:4.5.3') {
because 'previous versions have a bug impact'
}
implementation('commons-codec:commons-codec:1.11')
}
// define dependencies without versions
implementation 'org.apache.httpcomponents:httpclient'
}
ref: https://docs.gradle.org/userguide/managing_transitive_dependencies.html#sec:dependency_constraints
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Future
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Future
• ϥΠϒϥϦ܈ͷதͰదͳґଘؔΛઃఆ͢ΔͨΊʹɺ
BOMϑΝΠϧ͕·ͬͯ΄͍͠
ʢJetPack, Firebase, PlayService, etc...ʣ
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For Library Creator
Future
ରɿOkHttpͷΑ͏ͳϥΠϒϥϦ܈Λఏڙ͍ͯ͠Δଆ
1. ϥΠϒϥϦͷϦϦʔε࣌ʹBOMϑΝΠϧ(pom.xml)Λ༻ҙ
2. ଞϥΠϒϥϦͱಉ͘͡MavenϦϙδτϦʹΞοϓϩʔυ
3. [IMO] ϥΠϒϥϦͷಋೖઆ໌Ͱ `implementation platform(...)`
ref: "Maven Bill Of Materials (BOM) · Issue #4329 · square/okhttp" https://github.com/square/okhttp/issues/4329
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Q : ࣾͷશҊ݅Ͱ͍ͬͯΔϥΠϒϥϦͷόʔδϣϯΛ
BOMͰཧͰ͖Δʁ
A : ͯ͢ͷϥΠϒϥϦݱ࣮తͰͳ͍ɻ
Ҋ݅ʹΑͬͯϥΠϒϥϦͷߋ৽λΠϛϯά·ͪ·ͪɻ
ݱࡏͷ "ϥΠϒϥϦ܈" Ͱ͔ΕΔܗ͕ͪΐ͏ͲΑͦ͞͏ɻ
For Team Develop ?
Future
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Gradle BOM import ͰϥΠϒϥϦόʔδϣϯཧ
• BOMϑΝΠϧͰϥΠϒϥϦ܈ͷόʔδϣϯΛἧ͑Δ͜ͱ͕Ͱ͖Δ
• ϥΠϒϥϦ܈Λӽ͑ͨґଘؔʹ͍ͭͯࠓ·ͰͲ͓Γ
• ϥΠϒϥϦ܈ͱҰॹʹBOMϑΝΠϧΛఏڙ͠Α͏ʂ͍ͯͩ͘͠͞ʂ