mthmulders commented on a change in pull request #429:
URL: https://github.com/apache/maven/pull/429#discussion_r565263359



##########
File path: 
maven-model-builder/src/main/java/org/apache/maven/model/validation/DefaultModelValidator.java
##########
@@ -190,6 +190,8 @@ public void validateFileModel( Model m, 
ModelBuildingRequest request, ModelProbl
             {
                 String prefix = "profiles.profile[" + profile.getId() + "].";
 
+                validateId( prefix, "id", problems, Severity.ERROR, 
Version.V37, profile.getId(), null, m );

Review comment:
       > It has to be Version.V40.
   Done
   
   > [...] needs to be tightened in the future.
   I think [MNG-7052](https://issues.apache.org/jira/browse/MNG-7052) might 
resolve that as well.

##########
File path: 
maven-model-builder/src/main/java/org/apache/maven/model/validation/DefaultModelValidator.java
##########
@@ -190,6 +190,8 @@ public void validateFileModel( Model m, 
ModelBuildingRequest request, ModelProbl
             {
                 String prefix = "profiles.profile[" + profile.getId() + "].";
 
+                validateId( prefix, "id", problems, Severity.ERROR, 
Version.V37, profile.getId(), null, m );

Review comment:
       > It has to be Version.V40.
   
   Done
   
   > [...] needs to be tightened in the future.
   
   I think [MNG-7052](https://issues.apache.org/jira/browse/MNG-7052) might 
resolve that as well.

##########
File path: maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
##########
@@ -1507,41 +1506,41 @@ else if ( projectAction.startsWith( "+" ) )
     }
 
     // Visible for testing
-    static ProfileActivation determineProfileActivation( final CommandLine 
commandLine )
+    static void performProfileActivation( final CommandLine commandLine,
+                                          final ProfileActivation 
profileActivation )
     {
-        final ProfileActivation result = new ProfileActivation();
-
         if ( commandLine.hasOption( CLIManager.ACTIVATE_PROFILES ) )
         {
-            String[] profileOptionValues = commandLine.getOptionValues( 
CLIManager.ACTIVATE_PROFILES );
-            if ( profileOptionValues != null )
+            final String[] optionValues = commandLine.getOptionValues( 
CLIManager.ACTIVATE_PROFILES );
+
+            if ( optionValues == null )
             {
-                for ( String profileOptionValue : profileOptionValues )
-                {
-                    StringTokenizer profileTokens = new StringTokenizer( 
profileOptionValue, "," );
+                return;
+            }
 
-                    while ( profileTokens.hasMoreTokens() )
+            for ( final String optionValue : optionValues )
+            {
+                for ( String token : optionValue.split( "," ) )
+                {
+                    String profileId = token.trim();
+                    boolean active = true;
+                    if ( profileId.charAt( 0 ) == '-' || profileId.charAt( 0 ) 
== '!' )
                     {
-                        String profileAction = 
profileTokens.nextToken().trim();
-
-                        if ( profileAction.startsWith( "-" ) || 
profileAction.startsWith( "!" ) )
-                        {
-                            result.deactivate( profileAction.substring( 1 ) );
-                        }
-                        else if ( profileAction.startsWith( "+" ) )
-                        {
-                            result.activate( profileAction.substring( 1 ) );
-                        }
-                        else
-                        {
-                            result.activate( profileAction );
-                        }
+                        active = false;
+                        profileId = profileId.substring( 1 );
+                    }
+                    else if ( token.charAt( 0 ) == '+' )

Review comment:
       We didn't, but the `+` was in the code already so we decided to keep it.

##########
File path: maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
##########
@@ -1507,41 +1506,41 @@ else if ( projectAction.startsWith( "+" ) )
     }
 
     // Visible for testing
-    static ProfileActivation determineProfileActivation( final CommandLine 
commandLine )
+    static void performProfileActivation( final CommandLine commandLine,
+                                          final ProfileActivation 
profileActivation )
     {
-        final ProfileActivation result = new ProfileActivation();
-
         if ( commandLine.hasOption( CLIManager.ACTIVATE_PROFILES ) )
         {
-            String[] profileOptionValues = commandLine.getOptionValues( 
CLIManager.ACTIVATE_PROFILES );
-            if ( profileOptionValues != null )
+            final String[] optionValues = commandLine.getOptionValues( 
CLIManager.ACTIVATE_PROFILES );
+
+            if ( optionValues == null )
             {
-                for ( String profileOptionValue : profileOptionValues )
-                {
-                    StringTokenizer profileTokens = new StringTokenizer( 
profileOptionValue, "," );
+                return;
+            }
 
-                    while ( profileTokens.hasMoreTokens() )
+            for ( final String optionValue : optionValues )
+            {
+                for ( String token : optionValue.split( "," ) )
+                {
+                    String profileId = token.trim();
+                    boolean active = true;
+                    if ( profileId.charAt( 0 ) == '-' || profileId.charAt( 0 ) 
== '!' )

Review comment:
       Right now it could, but 
[MNG-7052](https://issues.apache.org/jira/browse/MNG-7052) should resolve that.

##########
File path: maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
##########
@@ -1507,41 +1506,41 @@ else if ( projectAction.startsWith( "+" ) )
     }
 
     // Visible for testing
-    static ProfileActivation determineProfileActivation( final CommandLine 
commandLine )
+    static void performProfileActivation( final CommandLine commandLine,
+                                          final ProfileActivation 
profileActivation )
     {
-        final ProfileActivation result = new ProfileActivation();
-
         if ( commandLine.hasOption( CLIManager.ACTIVATE_PROFILES ) )
         {
-            String[] profileOptionValues = commandLine.getOptionValues( 
CLIManager.ACTIVATE_PROFILES );
-            if ( profileOptionValues != null )
+            final String[] optionValues = commandLine.getOptionValues( 
CLIManager.ACTIVATE_PROFILES );
+
+            if ( optionValues == null )

Review comment:
       Looking at the Commons CLI code, it is either null or it has items. But 
it is good to not rely on those implementation details anyway.

##########
File path: 
maven-core/src/main/java/org/apache/maven/execution/ProfileActivation.java
##########
@@ -0,0 +1,180 @@
+package org.apache.maven.execution;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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
+ *
+ *  http://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.
+ */
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Predicate;
+
+import static java.util.stream.Collectors.toSet;
+
+/**
+ * Container for storing the request from the user to activate or de-activate 
certain profiles and optionally fail the
+ * build if those profiles do not exist.
+ */
+public class ProfileActivation
+{
+
+    private static class ActivationSettings
+    {
+        /** Should the profile be active? */
+        final boolean active;
+        /** Should the build continue if the profile is not present? */
+        final boolean optional;
+
+        ActivationSettings( final boolean active, final boolean optional )
+        {
+            this.active = active;
+            this.optional = optional;
+        }
+    }
+
+    private final Map<String, ActivationSettings> activations = new 
HashMap<>();
+
+    /**
+     * Mimics the pre-Maven 4 "active profiles" list.
+     */
+    @Deprecated
+    public List<String> getActiveProfiles()
+    {
+        return new ArrayList<>( getProfileIds( pa -> pa.active ) );
+    }
+
+    /**
+     * Mimics the pre-Maven 4 "inactive profiles" list.
+     */
+    @Deprecated
+    public List<String> getInactiveProfiles()
+    {
+        return new ArrayList<>( getProfileIds( pa -> !pa.active ) );
+    }
+
+    /**
+     * Overwrites the active profiles based on a pre-Maven 4 "active profiles" 
list.
+     * @param activeProfileIds A {@link List} of profile IDs that must be 
activated.
+     */
+    @Deprecated
+    public void overwriteActiveProfiles( List<String> activeProfileIds )
+    {
+        getActiveProfiles().forEach( this.activations::remove );
+        activeProfileIds.forEach( this::activateOptionalProfile );
+    }
+
+    /**
+     * Overwrites the inactive profiles based on a pre-Maven 4 "inactive 
profiles" list.
+     * @param inactiveProfileIds A {@link List} of profile IDs that must be 
deactivated.
+     */
+    @Deprecated
+    public void overwriteInactiveProfiles( List<String> inactiveProfileIds )
+    {
+        getInactiveProfiles().forEach( this.activations::remove );
+        inactiveProfileIds.forEach( this::deactivateOptionalProfile );
+    }
+
+    /**
+     * Mark a profile as required and activated.
+     * @param id The identifier of the profile.
+     */
+    public void activateRequiredProfile( String id )
+    {
+        this.activations.put( id, new ActivationSettings( true, false ) );

Review comment:
       Done




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