Allow setting included sources to run full refresh on change

CHANGELOG.adoc

@@ -13,6 +13,10 @@ For a detailed view of what has changed, refer to the {uri-repo}/commits/main[co
 
 == Unreleased
 
+Improvements::
+
+  * Allow running a refresh build on included sources (for `auto-refresh` & `http` mojos) (#542)
+
 Documentation::
 
   * Migrate docs (README) to Antora site and publish them in gh-pages (#498)

docs/modules/plugin/partials/auto-refresh-mojo-parameters.adoc

@@ -1,2 +1,6 @@
 interval:: time in milliseconds between checks of the filesystem.
 Defaults to `2000`
+
+refreshOn:: regular expression describing additional sources that force a full refresh.
+Useful when working with included/partial sources that aren't converted individually.
+Defaults to `empty`

src/main/java/org/asciidoctor/maven/AsciidoctorRefreshMojo.java

@@ -11,17 +11,16 @@
 import org.apache.maven.plugin.MojoFailureException;
 import org.apache.maven.plugins.annotations.Mojo;
 import org.apache.maven.plugins.annotations.Parameter;
-import org.asciidoctor.maven.refresh.AsciidoctorConverterFileAlterationListenerAdaptor;
-import org.asciidoctor.maven.refresh.ResourceCopyFileAlterationListenerAdaptor;
-import org.asciidoctor.maven.refresh.ResourcesPatternBuilder;
-import org.asciidoctor.maven.refresh.TimeCounter;
+import org.asciidoctor.maven.refresh.*;
 
 import java.io.File;
 import java.io.FileFilter;
 import java.util.*;
 
 import static org.apache.commons.lang3.StringUtils.isBlank;
 import static org.asciidoctor.maven.io.AsciidoctorFileScanner.ASCIIDOC_NON_INTERNAL_REG_EXP;
+import static org.asciidoctor.maven.process.SourceDocumentFinder.CUSTOM_FILE_EXTENSIONS_PATTERN_PREFIX;
+import static org.asciidoctor.maven.process.SourceDocumentFinder.CUSTOM_FILE_EXTENSIONS_PATTERN_SUFFIX;
 
 @Mojo(name = "auto-refresh")
 public class AsciidoctorRefreshMojo extends AsciidoctorMojo {
@@ -31,6 +30,9 @@ public class AsciidoctorRefreshMojo extends AsciidoctorMojo {
     @Parameter(property = PREFIX + "interval")
     protected int interval = 2000; // 2s
 
+    @Parameter(property = PREFIX + "refreshOn")
+    protected String refreshOn;
+
     private Collection<FileAlterationMonitor> monitors = null;
 
 
@@ -100,14 +102,24 @@ protected void startPolling() throws MojoExecutionException {
 
         final FileAlterationMonitor fileAlterationMonitor = new FileAlterationMonitor(interval);
 
-        { // content monitor
+        { // sources monitor
             final FileAlterationObserver observer = new FileAlterationObserver(sourceDirectory, buildSourcesFileFilter());
             final FileAlterationListener listener = new AsciidoctorConverterFileAlterationListenerAdaptor(this, () -> showWaitMessage(), getLog());
 
             observer.addListener(listener);
             fileAlterationMonitor.addObserver(observer);
         }
 
+        { // included-sources monitor
+            if (!isBlank(refreshOn)) {
+                final FileAlterationObserver observer = new FileAlterationObserver(sourceDirectory, new RegexFileFilter(refreshOn));
+                final FileAlterationListener listener = new AdditionalSourceFileAlterationListenerAdaptor(this, () -> showWaitMessage(), getLog());
+
+                observer.addListener(listener);
+                fileAlterationMonitor.addObserver(observer);
+            }
+        }
+
         { // resources monitor
             final FileAlterationObserver observer = new FileAlterationObserver(sourceDirectory, buildResourcesFileFilter());
             final FileAlterationListener listener = new ResourceCopyFileAlterationListenerAdaptor(this, () -> showWaitMessage(), getLog());
@@ -137,7 +149,7 @@ private IOFileFilter buildSourcesFileFilter() {
             return new NameFileFilter(sourceDocumentName);
 
         if (!sourceDocumentExtensions.isEmpty()) {
-            final StringJoiner stringJoiner = new StringJoiner("|", "^[^_.].*\\.(", ")$");
+            final StringJoiner stringJoiner = new StringJoiner("|", CUSTOM_FILE_EXTENSIONS_PATTERN_PREFIX, CUSTOM_FILE_EXTENSIONS_PATTERN_SUFFIX);
             for (String extension : sourceDocumentExtensions) {
                 stringJoiner.add(extension);
             }

src/main/java/org/asciidoctor/maven/process/SourceDocumentFinder.java

@@ -24,10 +24,10 @@ public class SourceDocumentFinder {
     private static final String STANDARD_FILE_EXTENSIONS_PATTERN = "^[^_.].*\\.a((sc(iidoc)?)|d(oc)?)$";
 
     /** Prefix for matching custom file extensions. */
-    private static final String CUSTOM_FILE_EXTENSIONS_PATTERN_PREFIX = "^[^_.].*\\.(";
+    public static final String CUSTOM_FILE_EXTENSIONS_PATTERN_PREFIX = "^[^_.].*\\.(";
 
     /** Suffix for matching custom file extensions. */
-    private static final String CUSTOM_FILE_EXTENSIONS_PATTERN_SUFFIX = ")$";
+    public static final String CUSTOM_FILE_EXTENSIONS_PATTERN_SUFFIX = ")$";
 
     /**
      * Finds all source documents inside the source directory with standard file extensions.

src/main/java/org/asciidoctor/maven/refresh/AdditionalSourceFileAlterationListenerAdaptor.java

@@ -0,0 +1,35 @@
+package org.asciidoctor.maven.refresh;
+
+import org.apache.maven.plugin.MojoExecutionException;
+import org.apache.maven.plugin.logging.Log;
+import org.asciidoctor.maven.AsciidoctorRefreshMojo;
+import org.asciidoctor.maven.process.ResourcesProcessor;
+
+import java.io.File;
+import java.util.Collections;
+
+public class AdditionalSourceFileAlterationListenerAdaptor extends AbstractFileAlterationListenerAdaptor {
+
+    private static final ResourcesProcessor EMPTY_RESOURCES_PROCESSOR = (sourcesDir, outputDir, encoding, configuration) -> {
+    };
+
+
+    public AdditionalSourceFileAlterationListenerAdaptor(AsciidoctorRefreshMojo mojo, Runnable postAction, Log log) {
+        super(mojo, postAction, log);
+    }
+
+    @Override
+    synchronized void processFile(File file, String actionName) {
+        getLog().info(String.format("Additional source file %s %s", file.getAbsolutePath(), actionName));
+        getLog().info("Full refresh");
+        long timeInMillis = TimeCounter.timed(() -> {
+            try {
+                getMojo().processAllSources(EMPTY_RESOURCES_PROCESSOR);
+            } catch (MojoExecutionException e) {
+                getLog().error(e);
+            }
+        });
+        getLog().info("Converted document(s) in " + timeInMillis + "ms");
+    }
+
+}

src/test/java/org/asciidoctor/maven/AsciidoctorRefreshMojoTest.java

@@ -5,17 +5,9 @@
 import org.apache.maven.model.Resource;
 import org.apache.maven.plugin.MojoExecutionException;
 import org.apache.maven.plugin.MojoFailureException;
-import org.apache.maven.plugin.logging.SystemStreamLog;
-import org.apache.maven.project.MavenProject;
-import org.apache.maven.shared.filtering.DefaultMavenFileFilter;
-import org.apache.maven.shared.filtering.DefaultMavenResourcesFiltering;
 import org.asciidoctor.maven.TestUtils.ResourceBuilder;
 import org.asciidoctor.maven.io.ConsoleHolder;
-import org.codehaus.plexus.logging.console.ConsoleLogger;
 import org.junit.jupiter.api.Test;
-import org.mockito.Mockito;
-import org.sonatype.plexus.build.incremental.BuildContext;
-import org.sonatype.plexus.build.incremental.DefaultBuildContext;
 
 import java.io.File;
 import java.io.IOException;
@@ -27,12 +19,11 @@
 import java.util.stream.Collectors;
 
 import static java.nio.charset.StandardCharsets.UTF_8;
+import static java.util.Collections.singletonList;
 import static org.asciidoctor.maven.TestUtils.newFakeRefreshMojo;
 import static org.asciidoctor.maven.io.TestFilesHelper.createFileWithContent;
 import static org.asciidoctor.maven.io.TestFilesHelper.newOutputTestDirectory;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.codehaus.plexus.util.ReflectionUtils.setVariableValueInObject;
-import static org.mockito.Mockito.when;
 
 public class AsciidoctorRefreshMojoTest {
 
@@ -335,6 +326,65 @@ public void should_copy_resources_when_updated_but_not_on_start_when_there_are_n
         awaitTermination(mojoThread);
     }
 
+    @Test
+    public void should_convert_additional_sources_when_set_in_refreshOn() throws IOException {
+        // given
+        final ConsoleHolder consoleHolder = ConsoleHolder.start();
+
+        final File srcDir = newOutputTestDirectory(TEST_DIR);
+        final File outputDir = newOutputTestDirectory(TEST_DIR);
+
+        // when
+        final File sourceFile = new File(srcDir, "sourceFile.adoc");
+        String sourceContent = new StringBuilder()
+                .append("= Document Title\n\n")
+                .append("This is test, only a test.\n\n")
+                .append("== Included\n\n")
+                .append("include::included.txt[]")
+                .toString();
+        FileUtils.write(sourceFile, sourceContent, UTF_8);
+
+        final File includedFile = new File(srcDir, "included.txt");
+        String includedContent = new StringBuilder()
+                .append("Original included content")
+                .toString();
+        FileUtils.write(includedFile, includedContent, UTF_8);
+
+        // when
+        Thread mojoThread = runMojoAsynchronously(mojo -> {
+            mojo.headerFooter = false;
+            mojo.backend = "html5";
+            mojo.sourceDirectory = srcDir;
+            mojo.outputDirectory = outputDir;
+            mojo.refreshOn = ".*\\.txt";
+            // THIS DOES NOT AFFECT
+            mojo.resources = ResourceBuilder.excludeAll();
+        });
+
+        // then: source is converted and included is copies (treated as resource)
+        final File target = new File(outputDir, "sourceFile.html");
+        consoleHolder.awaitProcessingAllSources();
+        assertThat(FileUtils.readFileToString(target, UTF_8))
+                .contains("Original included content");
+        assertThat(includedContent)
+                .isNotEmpty();
+
+        // and when
+        FileUtils.write(includedFile, "Included content UPDATED!", UTF_8);
+
+        // then
+        consoleHolder.awaitProcessingResource();
+        assertThat(FileUtils.readFileToString(target, UTF_8))
+                .contains("Included content UPDATED!");
+        assertThat(includedContent)
+                .isNotEmpty();
+
+        // cleanup
+        consoleHolder.input("exit");
+        consoleHolder.release();
+        awaitTermination(mojoThread);
+    }
+
     @Test
     public void should_copy_resource_in_root_when_resource_is_updated() throws IOException {
         // given