refactor: Move a private CLI helper function to the public analyzer API

Move the function to determine the enabled package managers to the public API of the analyzer to make it available when programmatically using ORT. Signed-off-by: Martin Nonnenmacher <martin.nonnenmacher@bosch.io>

Author: mnonnenmacher

analyzer/src/main/kotlin/Extensions.kt

@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2022 The ORT Project Authors (see <https://github.com/oss-review-toolkit/ort/blob/main/NOTICE>)
+ *
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * License-Filename: LICENSE
+ */
+
+package org.ossreviewtoolkit.analyzer
+
+import org.ossreviewtoolkit.model.config.AnalyzerConfiguration
+
+/**
+ * Return the list of enabled [PackageManager]s based on the [AnalyzerConfiguration.enabledPackageManagers] and
+ * [AnalyzerConfiguration.disabledPackageManagers] configuration properties and the
+ * [default][PackageManagerFactory.isEnabledByDefault] of the [PackageManager]s.
+ */
+fun AnalyzerConfiguration.determineEnabledPackageManagers(): Set<PackageManagerFactory> {
+ val enabled = enabledPackageManagers?.mapNotNull { PackageManager.ALL[it] } ?: PackageManager.ENABLED_BY_DEFAULT
+ val disabled = disabledPackageManagers?.mapNotNull { PackageManager.ALL[it] }.orEmpty()
+
+ return enabled.toSet() - disabled.toSet()
+}

plugins/commands/analyzer/src/main/kotlin/AnalyzerCommand.kt

@@ -40,6 +40,7 @@ import org.apache.logging.log4j.kotlin.Logging
 import org.ossreviewtoolkit.analyzer.Analyzer
 import org.ossreviewtoolkit.analyzer.PackageManager
 import org.ossreviewtoolkit.analyzer.PackageManagerFactory
+import org.ossreviewtoolkit.analyzer.determineEnabledPackageManagers
 import org.ossreviewtoolkit.model.FileFormat
 import org.ossreviewtoolkit.model.ResolvedPackageCurations.Companion.REPOSITORY_CONFIGURATION_PROVIDER_ID
 import org.ossreviewtoolkit.model.config.AnalyzerConfiguration
@@ -235,10 +236,3 @@ class AnalyzerCommand : OrtCommand(
  severityStats.print().conclude(ortConfig.severeIssueThreshold, 2)
  }
 }
-
-private fun AnalyzerConfiguration.determineEnabledPackageManagers(): Set<PackageManagerFactory> {
- val enabled = enabledPackageManagers?.mapNotNull { PackageManager.ALL[it] } ?: PackageManager.ENABLED_BY_DEFAULT
- val disabled = disabledPackageManagers?.mapNotNull { PackageManager.ALL[it] }.orEmpty()
-
- return enabled.toSet() - disabled.toSet()
-}