Move formatters to shared library

Signed-off-by: Ben Sherman <[email protected]>

modules/compiler/src/main/java/config/formatter/ConfigFormattingVisitor.java

@@ -0,0 +1,139 @@
+/*
+ * Copyright 2024, Seqera Labs
+ *
+ * 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
+ *
+ *     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.
+ */
+package nextflow.config.formatter;
+
+import java.util.regex.Pattern;
+
+import nextflow.config.ast.ConfigAppendNode;
+import nextflow.config.ast.ConfigAssignNode;
+import nextflow.config.ast.ConfigBlockNode;
+import nextflow.config.ast.ConfigIncludeNode;
+import nextflow.config.ast.ConfigNode;
+import nextflow.config.ast.ConfigVisitorSupport;
+import nextflow.script.formatter.FormattingOptions;
+import nextflow.script.formatter.Formatter;
+import org.codehaus.groovy.control.SourceUnit;
+import org.codehaus.groovy.runtime.IOGroovyMethods;
+
+/**
+ *
+ * @author Ben Sherman <[email protected]>
+ */
+public class ConfigFormattingVisitor extends ConfigVisitorSupport {
+
+    private SourceUnit sourceUnit;
+
+    private FormattingOptions options;
+
+    private Formatter fmt;
+
+    public ConfigFormattingVisitor(SourceUnit sourceUnit, FormattingOptions options) {
+        this.sourceUnit = sourceUnit;
+        this.options = options;
+        this.fmt = new Formatter(options);
+    }
+
+    @Override
+    protected SourceUnit getSourceUnit() {
+        return sourceUnit;
+    }
+
+    public void visit() {
+        var moduleNode = sourceUnit.getAST();
+        if( moduleNode instanceof ConfigNode cn )
+            super.visit(cn);
+    }
+
+    public String toString() {
+        return fmt.toString();
+    }
+
+    // config statements
+
+    @Override
+    public void visitConfigAssign(ConfigAssignNode node) {
+        fmt.appendLeadingComments(node);
+        fmt.appendIndent();
+        var name = String.join(".", node.names);
+        fmt.append(name);
+        if( currentAlignmentWidth > 0 ) {
+            var padding = currentAlignmentWidth - name.length();
+            fmt.append(" ".repeat(padding));
+        }
+        fmt.append(node instanceof ConfigAppendNode ? " " : " = ");
+        fmt.visit(node.value);
+        fmt.appendNewLine();
+    }
+
+    private static final Pattern IDENTIFIER = Pattern.compile("[a-zA-Z_]+[a-zA-Z0-9_]*");
+
+    private int currentAlignmentWidth = 0;
+
+    @Override
+    public void visitConfigBlock(ConfigBlockNode node) {
+        fmt.appendLeadingComments(node);
+        fmt.appendIndent();
+        if( node.kind != null ) {
+            fmt.append(node.kind);
+            fmt.append(": ");
+        }
+        var name = node.name;
+        if( IDENTIFIER.matcher(name).matches() ) {
+            fmt.append(name);
+        }
+        else {
+            fmt.append('\'');
+            fmt.append(name);
+            fmt.append('\'');
+        }
+        fmt.append(" {");
+        fmt.appendNewLine();
+
+        int caw = currentAlignmentWidth;
+        if( options.harshilAlignment() ) {
+            int maxWidth = 0;
+            for( var stmt : node.statements ) {
+                if( stmt instanceof ConfigAssignNode can ) {
+                    var width = String.join(".", can.names).length();
+                    if( maxWidth < width )
+                        maxWidth = width;
+                }
+            }
+            currentAlignmentWidth = maxWidth;
+        }
+
+        fmt.incIndent();
+        super.visitConfigBlock(node);
+        fmt.decIndent();
+
+        if( options.harshilAlignment() )
+            currentAlignmentWidth = caw;
+
+        fmt.appendIndent();
+        fmt.append('}');
+        fmt.appendNewLine();
+    }
+
+    @Override
+    public void visitConfigInclude(ConfigIncludeNode node) {
+        fmt.appendLeadingComments(node);
+        fmt.appendIndent();
+        fmt.append("includeConfig ");
+        fmt.visit(node.source);
+        fmt.appendNewLine();
+    }
+
+}

modules/language-server/src/main/java/nextflow/lsp/services/util/Formatter.java → modules/compiler/src/main/java/script/formatter/Formatter.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package nextflow.lsp.services.util;
+package nextflow.script.formatter;
 
 import java.util.List;
 import java.util.stream.Stream;

modules/language-server/src/main/java/nextflow/lsp/services/util/FormattingOptions.java → modules/compiler/src/main/java/script/formatter/FormattingOptions.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package nextflow.lsp.services.util;
+package nextflow.script.formatter;
 
 public record FormattingOptions(
     int tabSize,