Implements #325 rejectVersionIf { ... }

README.md

@@ -85,48 +85,116 @@ The strategy can be specified either on the task or as a system property for ad
 ```groovy
 gradle dependencyUpdates -Drevision=release
 ```
+
 
-The latest versions can be further filtered using [Component Selection Rules][component_selection_rules].
-The current version of a component can be retrieved with `currentVersion` property. For example, to
-disallow release candidates as upgradable versions from stable versions, a selection rule could be
-defined as:
+To further define which version to accept, you need to define what means an unstable version. Sadly, there are
+no agreed standard on this, but this is a good starting point:
+
+<details open>
+<summary>Groovy</summary>
 
 ```groovy
-dependencyUpdates.resolutionStrategy {
-  componentSelection { rules ->
-    rules.all { ComponentSelection selection ->
-      def isNonStable = { String version ->
-        ['alpha', 'beta', 'rc', 'cr', 'm', 'preview', 'b', 'ea'].any { qualifier ->
-          version ==~ /(?i).*[.-]$qualifier[.\d-+]*/
-        }
-      }
+def isNonStable = { String version ->
+  def stableKeyword = ['RELEASE', 'FINAL', 'GA'].any { it -> version.toUpperCase().contains(it) }
+  def regex = /^[0-9,.v-]+$/
+  return !stableKeyword && !(version ==~ regex)
+}
+```
+
+</details>
+<details>
+<summary>Kotlin</summary>
+
+```kotlin
+fun isNonStable(version: String): Boolean {
+    val stableKeyword = listOf("RELEASE", "FINAL", "GA").any { version.toUpperCase().contains(it) }
+    val regex = "^[0-9,.v-]+$".toRegex()
+    val isStable = stableKeyword || regex.matches(version)
+    return isStable.not()
+}
+```
+
+</details>
+
+You can then configure [Component Selection Rules][component_selection_rules].
+The current version of a component can be retrieved with the `currentVersion` property.
+You can either use the simplified syntax `rejectVersionIf { ... }` or configure a complete resolution strategy.
 
-      if (isNonStable(candidate.version) && !isNonStable(currentVersion)) {
-        selection.reject('Release candidate')
+
+<details open>
+<summary>Groovy</summary>
+
+<!--  Always modify first examples/groovy and make sure that it works. THEN modify the README -->
+
+```groovy
+dependencyUpdates {
+   // Example 1: reject all non stable versions
+   rejectVersionIf { selection ->
+       isNonStable(selection.candidate.version)
+   }
+
+   // Example 2: disallow release candidates as upgradable versions from stable versions
+   rejectVersionIf { selection ->
+       isNonStable(selection.candidate.version) && !isNonStable(selection.currentVersion)
+   }
+
+   // Example 3: using the full syntax
+  resolutionStrategy {
+    componentSelection {
+      all {
+        if (isNonStable(candidate.version) && !isNonStable(currentVersion)) {
+          reject('Release candidate')
+        }
       }
     }
   }
 }
 ```
 
-If using Gradle's [kotlin-dsl][kotlin_dsl], you could configure the `dependencyUpdates` like this:
+</details>
+<details>
+<summary>Kotlin</summary>
+
+<!--  Always modify first examples/kotlin and make sure that it works. THEN modify the README -->
 
 ```kotlin
 import com.github.benmanes.gradle.versions.updates.DependencyUpdatesTask
 
-tasks.named<DependencyUpdatesTask>("dependencyUpdates") {
+tasks.withType<DependencyUpdatesTask> {
+  // Example 1: reject all non stable versions
+  rejectVersionIf {
+    isNonStable(candidate.version)
+  }
+
+  // Example 2: disallow release candidates as upgradable versions from stable versions
+  rejectVersionIf {
+    isNonStable(candidate.version) && !isNonStable(currentVersion)
+  }
+
+  // Example 3: using the full syntax
   resolutionStrategy {
     componentSelection {
       all {
-        fun isNonStable(version: String) = listOf("alpha", "beta", "rc", "cr", "m", "preview", "b", "ea").any { qualifier ->
-          version.matches(Regex("(?i).*[.-]$qualifier[.\\d-+]*"))
-        }
         if (isNonStable(candidate.version) && !isNonStable(currentVersion)) {
           reject("Release candidate")
         }
       }
     }
   }
+}
+```
+
+</details>
+
+#### Kotlin DSL
+
+If using Gradle's [kotlin-dsl][kotlin_dsl], you could configure the `dependencyUpdates` like this:
+
+```kotlin
+import com.github.benmanes.gradle.versions.updates.DependencyUpdatesTask
+
+tasks.withType<DependencyUpdatesTask> {
+
   // optional parameters
   checkForGradleUpdate = true
   outputFormatter = "json"
@@ -137,6 +205,19 @@ tasks.named<DependencyUpdatesTask>("dependencyUpdates") {
 
 Note: Do use the `plugins { .. }` syntax if you use the Kotlin DSL.
 
+#### Try out the samples
+
+Have a look at [`examples/groovy`](https://github.com/ben-manes/gradle-versions-plugin/tree/master/examples/groovy) and [`examples/kotlin`](https://github.com/ben-manes/gradle-versions-plugin/tree/master/examples/kotlin)
+
+```bash
+# Publish the latest version of the plugin to mavenLocal()
+$ ./gradlew install  
+
+# Try out the samples
+$ ./gradlew -p examples/groovy dependencyUpdate
+$ ./gradlew -p examples/kotlin dependencyUpdate
+```
+
 #### Report format
 
 The task property `outputFormatter` controls the report output format. The following values are supported:

build.gradle

@@ -24,7 +24,7 @@ apply plugin: 'nexus'
 apply plugin: 'codenarc'
 
 group = 'com.github.ben-manes'
-version = '0.24.0'
+version = '0.25.0'
 
 sourceCompatibility = '1.6'
 

examples/build.gradle → examples/groovy/build.gradle

@@ -6,8 +6,8 @@ defaultTasks 'dependencyUpdates'
 buildscript {
   repositories {
     // Use 'gradle install' to install latest
-    jcenter()
     mavenLocal()
+    jcenter()
   }
 
   dependencies {
@@ -29,16 +29,31 @@ configurations {
   unresolvable2
 }
 
+def isNonStable = { String version ->
+  def stableKeyword = ['RELEASE', 'FINAL', 'GA'].any { it -> version.toUpperCase().contains(it) }
+  def regex = /^[0-9,.v-]+$/
+  return !stableKeyword && !(version ==~ regex)
+}
+
 dependencyUpdates {
   checkForGradleUpdate = true
+
+  // Example 1: reject all non stable versions
+  rejectVersionIf {
+    isNonStable(candidate.version)
+  }
+
+  // Example 2: disallow release candidates as upgradable versions from stable versions
+  rejectVersionIf {
+    isNonStable(candidate.version) && !isNonStable(currentVersion)
+  }
+
+  // Example 3: using the full syntax
   resolutionStrategy {
-    componentSelection { rules ->
-      rules.all { ComponentSelection selection ->
-        boolean rejected = ['alpha', 'beta', 'rc', 'cr', 'm', 'preview', 'b', 'ea'].any { qualifier ->
-          selection.candidate.version ==~ /(?i).*[.-]$qualifier[.\d-+]*/
-        }
-        if (rejected) {
-          selection.reject('Release candidate')
+    componentSelection {
+      all {
+        if (isNonStable(candidate.version) && !isNonStable(currentVersion)) {
+          reject('Release candidate')
         }
       }
     }

examples/groovy/settings.gradle

@@ -0,0 +1,3 @@
+rootProject.name = 'gradle-versions-sample-groovy'
+enableFeaturePreview("IMPROVED_POM_SUPPORT")
+

examples/kotlin/build.gradle.kts

@@ -1,10 +1,10 @@
 import com.github.benmanes.gradle.versions.updates.DependencyUpdatesTask
 
+// Use 'gradle install' to install latest plugin version
 plugins {
-  id("com.github.ben-manes.versions") version "0.20.0"
+  id("com.github.ben-manes.versions") version "0.25.0"
 }
 
-
 repositories {
   jcenter()
 }
@@ -19,19 +19,38 @@ configurations {
   register("unresolvable2")
 }
 
-tasks.named<DependencyUpdatesTask>("dependencyUpdates") {
+fun isNonStable(version: String): Boolean {
+  val stableKeyword = listOf("RELEASE", "FINAL", "GA").any { version.toUpperCase().contains(it) }
+  val regex = "^[0-9,.v-]+$".toRegex()
+  val isStable = stableKeyword || regex.matches(version)
+  return isStable.not()
+}
+
+
+
+tasks.withType<DependencyUpdatesTask> {
+
+  // Example 1: reject all non stable versions
+  rejectVersionIf {
+    isNonStable(candidate.version)
+  }
+
+  // Example 2: disallow release candidates as upgradable versions from stable versions
+  rejectVersionIf {
+    isNonStable(candidate.version) && !isNonStable(currentVersion)
+  }
+
+  // Example 3: using the full syntax
   resolutionStrategy {
     componentSelection {
       all {
-        val rejected = listOf("alpha", "beta", "rc", "cr", "m", "preview", "b", "ea").any { qualifier ->
-          candidate.version.matches(Regex("(?i).*[.-]$qualifier[.\\d-+]*"))
-        }
-        if (rejected) {
+        if (isNonStable(candidate.version) && !isNonStable(currentVersion)) {
           reject("Release candidate")
         }
       }
     }
   }
+
   // optional parameters
   checkForGradleUpdate = true
   outputFormatter = "json"

examples/kotlin/settings.gradle.kts

@@ -0,0 +1,11 @@
+@file:Suppress("UnstableApiUsage")
+
+// Use 'gradle install' to install latest plugin version
+pluginManagement {
+  repositories {
+    mavenLocal()
+    gradlePluginPortal()
+  }
+}
+rootProject.name = "gradle-versions-sample-kotlin"
+

src/main/groovy/com/github/benmanes/gradle/versions/updates/DependencyUpdatesTask.groovy

@@ -15,6 +15,9 @@
  */
 package com.github.benmanes.gradle.versions.updates
 
+import com.github.benmanes.gradle.versions.updates.resolutionstrategy.ComponentFilter
+import com.github.benmanes.gradle.versions.updates.resolutionstrategy.ComponentSelectionRulesWithCurrent
+import com.github.benmanes.gradle.versions.updates.resolutionstrategy.ComponentSelectionWithCurrent
 import com.github.benmanes.gradle.versions.updates.resolutionstrategy.ResolutionStrategyWithCurrent
 import groovy.transform.TypeChecked
 import org.gradle.api.Action
@@ -91,6 +94,19 @@ class DependencyUpdatesTask extends DefaultTask {
     this.resolutionStrategy = null
   }
 
+  void rejectVersionIf(final ComponentFilter filter) {
+    resolutionStrategy { ResolutionStrategyWithCurrent strategy ->
+      strategy.componentSelection { ComponentSelectionRulesWithCurrent selection ->
+        selection.all { ComponentSelectionWithCurrent current ->
+          def isNotNull = current.currentVersion != null && current.candidate.version != null
+          if (isNotNull && filter.reject(current)) {
+            current.reject("Rejected by rejectVersionIf ")
+          }
+        }
+      }
+    }
+  }
+
   /** Returns the resolution revision level. */
   String revisionLevel() { System.properties['revision'] ?: revision }
 

src/main/groovy/com/github/benmanes/gradle/versions/updates/resolutionstrategy/ComponentFilter.groovy

@@ -0,0 +1,10 @@
+package com.github.benmanes.gradle.versions.updates.resolutionstrategy
+
+import org.gradle.api.HasImplicitReceiver
+
+@HasImplicitReceiver
+interface ComponentFilter {
+
+  boolean reject(ComponentSelectionWithCurrent candidate)
+
+}

src/main/groovy/com/github/benmanes/gradle/versions/updates/resolutionstrategy/ComponentSelectionWithCurrent.groovy

@@ -1,13 +1,27 @@
 package com.github.benmanes.gradle.versions.updates.resolutionstrategy
 
+
 import groovy.transform.TupleConstructor
 import org.gradle.api.artifacts.ComponentSelection
 
-@TupleConstructor(includeFields=true)
+@TupleConstructor(includeFields = true)
 class ComponentSelectionWithCurrent {
 
   final String currentVersion
 
   @Delegate
   private final ComponentSelection delegate
+
+
+  @Override
+  public String toString() {
+    return """\
+ComponentSelectionWithCurrent{
+    group="${candidate.group}",
+    module="${candidate.module}",
+    version="${candidate.version}",
+    currentVersion="$currentVersion", 
+}"""
+  }
 }
+