Resolve EAP IDEs for plugin verifier

gradle/scripts/verifier.gradle

@@ -1,15 +1,18 @@
 buildscript {
     repositories {
-        mavenCentral()
+        maven { url "https://plugins.gradle.org/m2/" }
     }
     dependencies {
-        classpath "de.undercouch:gradle-download-task:4.0.2"
+        classpath "de.undercouch:gradle-download-task:4.0.4"
     }
 }
 
+
 import de.undercouch.gradle.tasks.download.DownloadAction
 import org.gradle.api.internal.ConventionTask
 
+import java.util.regex.Pattern
+
 
 /**
  * Runs the IntelliJ plugin verifier.
@@ -37,10 +40,14 @@ class PluginVerifierRunner extends ConventionTask {
      * The identifiers of the IDEs to verify against.
      */
     private List<String> ides = new ArrayList<String>()
+    /**
+     * Base URL to resolve IDEs at; "releases/" or "snapshots/" will be appended later.
+     */
+    private String repoUrl = "https://www.jetbrains.com/intellij-repository/"
     /**
      * The version of the plugin verifier to use.
      */
-    private String verifierVersion = "1.222"
+    private String verifierVersion = "1.241"
 
 
     @Input
@@ -61,6 +68,15 @@ class PluginVerifierRunner extends ConventionTask {
         this.ides = ides
     }
 
+    @Input
+    String getRepoUrl() {
+        return repoUrl
+    }
+
+    void setRepoUrl(String repoUrl) {
+        this.repoUrl = repoUrl
+    }
+
     @Input
     String getVerifierVersion() {
         return verifierVersion
@@ -109,6 +125,8 @@ class PluginVerifierRunner extends ConventionTask {
      * @return the link to the resolved archive
      */
     File resolveIde(String identifier) {
+        project.repositories.maven { it.url = "${repoUrl}/${releaseType(identifier)}" }
+
         logger.lifecycle("Resolving $identifier")
         def dependency = project.dependencies.create(identifierToDependency(identifier))
         def configuration = project.configurations.detachedConfiguration(dependency)
@@ -144,15 +162,41 @@ class PluginVerifierRunner extends ConventionTask {
     }
 
 
+    /**
+     * Matches snapshots of major releases.
+     *
+     * Code taken from https://github.com/JetBrains/gradle-intellij-plugin/blob/a4fc011/src/main/groovy/org/jetbrains/intellij/Utils.groovy.
+     */
+    private static def MAJOR_VERSION_PATTERN = Pattern.compile("(RIDER-)?\\d{4}\\.\\d-SNAPSHOT")
+
+    /**
+     * Returns the release type of the given version number.
+     *
+     * Code taken from https://github.com/JetBrains/gradle-intellij-plugin/blob/a4fc011/src/main/groovy/org/jetbrains/intellij/Utils.groovy.
+     *
+     * @param version the version number to determine the release type of
+     * @return the release type of the given version number
+     */
+    private static String releaseType(String version) {
+        if (version.endsWith("-EAP-SNAPSHOT") || version.endsWith("-EAP-CANDIDATE-SNAPSHOT")
+            || version.endsWith("-CUSTOM-SNAPSHOT") || MAJOR_VERSION_PATTERN.matcher(version).matches()) {
+            return "snapshots"
+        } else if (version.endsWith("-SNAPSHOT")) {
+            return "nightly"
+        } else {
+            return "releases"
+        }
+    }
+
     /**
      * Translates a user-friendly identifier to a Maven-style dependency.
      *
      * @param identifier the user-friendly identifier
      * @return a Maven-style dependency
      * @throws IllegalArgumentException if the identifier was not recognized
      */
-    static String identifierToDependency(String identifier) {
-        def (type, version) = identifier.split("-")
+    private static String identifierToDependency(String identifier) {
+        def (type, version) = identifier.split("-", 2)
 
         def dependencyGroup
         def dependencyName