XML Extension (#293)

XML extension for Gradle and Maven.

Author: fvgh

README.md

@@ -48,6 +48,7 @@ lib('kotlin.KtLintStep')                         +'{{yes}}       | {{yes}}
 lib('markdown.FreshMarkStep')                    +'{{yes}}       | {{no}}       | {{no}}  |',
 lib('scala.ScalaFmtStep')                        +'{{yes}}       | {{yes}}       | {{no}}  |',
 lib('sql.DBeaverSQLFormatterStep')               +'{{yes}}       | {{no}}       | {{no}}  |',
+extra('wtp.WtpEclipseFormatterStep')             +'{{yes}}       | {{yes}}      | {{no}}  |',
 '| [(Your FormatterStep here)](CONTRIBUTING.md#how-to-add-a-new-formatterstep) | {{no}}        | {{no}}       | {{no}}  |',
 '| Fast up-to-date checking                      | {{yes}}       | {{no}}       | {{no}}  |',
 '| Automatic idempotency safeguard               | {{yes}}       | {{no}}       | {{no}}  |',
@@ -72,6 +73,7 @@ lib('sql.DBeaverSQLFormatterStep')               +'{{yes}}       | {{no}}
 | [`markdown.FreshMarkStep`](lib/src/main/java/com/diffplug/spotless/markdown/FreshMarkStep.java) | :+1:       | :white_large_square:       | :white_large_square:  |
 | [`scala.ScalaFmtStep`](lib/src/main/java/com/diffplug/spotless/scala/ScalaFmtStep.java) | :+1:       | :+1:       | :white_large_square:  |
 | [`sql.DBeaverSQLFormatterStep`](lib/src/main/java/com/diffplug/spotless/sql/DBeaverSQLFormatterStep.java) | :+1:       | :white_large_square:       | :white_large_square:  |
+| [`wtp.WtpEclipseFormatterStep`](lib-extra/src/main/java/com/diffplug/spotless/extra/wtp/WtpEclipseFormatterStep.java) | :+1:       | :+1:      | :white_large_square:  |
 | [(Your FormatterStep here)](CONTRIBUTING.md#how-to-add-a-new-formatterstep) | :white_large_square:        | :white_large_square:       | :white_large_square:  |
 | Fast up-to-date checking                      | :+1:       | :white_large_square:       | :white_large_square:  |
 | Automatic idempotency safeguard               | :+1:       | :white_large_square:       | :white_large_square:  |

_ext/eclipse-wtp/src/test/java/com/diffplug/spotless/extra/eclipse/wtp/EclipseXmlFormatterStepImplTest.java

@@ -41,88 +41,88 @@ public static void initializeStatic() throws Exception {
 
 	@Test
 	public void simpleDefaultFormat() throws Throwable {
-		String output = format(TEST_DATA.input("xml_space.xml"), config -> {});
+		String output = format(TEST_DATA.input("xml_space.test"), config -> {});
 		assertEquals("Unexpected formatting with default preferences.",
-				TEST_DATA.expected("xml_space.xml"), output);
+				TEST_DATA.expected("xml_space.test"), output);
 	}
 
 	@Test
 	public void invalidXmlFormat() throws Throwable {
-		String[] input = TEST_DATA.input("xml_space.xml");
+		String[] input = TEST_DATA.input("xml_space.test");
 		input[0] += INCOMPLETE;
 		String output = format(input, config -> {});
-		String expected = TEST_DATA.expected("xml_space.xml") + LINE_DELIMITER + INCOMPLETE;
+		String expected = TEST_DATA.expected("xml_space.test") + LINE_DELIMITER + INCOMPLETE;
 		assertEquals("Incomplete XML not formatted on best effort basis.",
 				expected, output);
 	}
 
 	@Test
 	public void illegalXmlCharater() throws Throwable {
-		String[] input = TEST_DATA.input("xml_space.xml");
+		String[] input = TEST_DATA.input("xml_space.test");
 		input[0] = ILLEGAL_CHAR + input[0];
 		String output = format(input, config -> {});
-		String expected = LINE_DELIMITER + LINE_DELIMITER + TEST_DATA.expected("xml_space.xml");
+		String expected = LINE_DELIMITER + LINE_DELIMITER + TEST_DATA.expected("xml_space.test");
 		assertEquals("Illegal character not replaced by line delimiter.", expected, output);
 	}
 
 	@Test
 	public void multipleConfigurations() throws Throwable {
-		String output = format(TEST_DATA.input("xml_space.xml"), config -> {
+		String output = format(TEST_DATA.input("xml_space.test"), config -> {
 			config.setProperty(INDENTATION_SIZE, "2");
 			config.setProperty(INDENTATION_CHAR, SPACE);
 		});
-		String expected = TEST_DATA.expected("xml_space.xml").replace("\t", "  ");
+		String expected = TEST_DATA.expected("xml_space.test").replace("\t", "  ");
 		assertEquals("Custom indentation configuration not applied.", expected, output);
 
-		output = format(TEST_DATA.input("xml_space.xml"), config -> {
+		output = format(TEST_DATA.input("xml_space.test"), config -> {
 			config.setProperty(SPLIT_MULTI_ATTRS, Boolean.toString(true));
 		});
-		expected = TEST_DATA.expected("xml_space.xml");
+		expected = TEST_DATA.expected("xml_space.test");
 		expected = expected.replace(" a=", LINE_DELIMITER + "\ta=");
 		expected = expected.replace(" b=", LINE_DELIMITER + "\tb=");
 		assertEquals("Custom indentation configuration not reverted or custom multiple argument configuration not applied.", expected, output);
 	}
 
 	@Test
 	public void invalidConfiguration() throws Throwable {
-		String output = format(TEST_DATA.input("xml_space.xml"), config -> {
+		String output = format(TEST_DATA.input("xml_space.test"), config -> {
 			config.setProperty(INDENTATION_SIZE, "Not an integer");
 			config.setProperty(INDENTATION_CHAR, SPACE);
 		});
 		assertEquals("Invalid indentation configuration not replaced by default value (0 spaces)",
-				TEST_DATA.expected("xml_space.xml").replace("\t", ""), output);
+				TEST_DATA.expected("xml_space.test").replace("\t", ""), output);
 	}
 
 	@Test
 	public void dtdRelativePath() throws Throwable {
-		String output = format(TEST_DATA.input("dtd_relative.xml"), config -> {});
+		String output = format(TEST_DATA.input("dtd_relative.test"), config -> {});
 		assertEquals("Relative DTD not resolved. Restrictions are not applied by formatter.",
-				TEST_DATA.expected("dtd_relative.xml"), output);
+				TEST_DATA.expected("dtd_relative.test"), output);
 	}
 
 	@Test
 	public void xsdRelativePath() throws Throwable {
-		String output = format(TEST_DATA.input("xsd_relative.xml"), config -> {});
+		String output = format(TEST_DATA.input("xsd_relative.test"), config -> {});
 		assertEquals("Relative XSD not resolved. Restrictions are not applied by formatter.",
-				TEST_DATA.expected("xsd_relative.xml"), output);
+				TEST_DATA.expected("xsd_relative.test"), output);
 	}
 
 	@Test
 	public void xsdNotFound() throws Throwable {
-		String output = format(TEST_DATA.input("xsd_not_found.xml"), config -> {});
+		String output = format(TEST_DATA.input("xsd_not_found.test"), config -> {});
 		assertEquals("Unresolved XSD/DTD not silently ignored.",
-				TEST_DATA.expected("xsd_not_found.xml"), output);
+				TEST_DATA.expected("xsd_not_found.test"), output);
 	}
 
 	@Test
 	public void catalogLookup() throws Throwable {
-		String output = format(TEST_DATA.input("xsd_not_found.xml"), config -> {
+		String output = format(TEST_DATA.input("xsd_not_found.test"), config -> {
 			config.setProperty(
 					SpotlessPreferences.USER_CATALOG,
 					TEST_DATA.getRestrictionsPath("catalog.xml").toString());
 		});
 		assertEquals("XSD not resolved by catalog. Restrictions are not applied by formatter.",
-				TEST_DATA.expected("xsd_not_found.xml").replace(" remove spaces ", "remove spaces"), output);
+				TEST_DATA.expected("xsd_not_found.test").replace(" remove spaces ", "remove spaces"), output);
 	}
 
 	private static String format(final String[] input, final Consumer<Properties> config) throws Exception {

_ext/eclipse-wtp/src/test/resources/xml/expected/dtd_relative.xml renamed to _ext/eclipse-wtp/src/test/resources/xml/expected/dtd_relative.test

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
-	<!-- OASIS: If the catalog entry file is specified with a relative URI, it is relative to the base URI of the document that contains the processing instruction. -->
-    <system systemId="http://foo.bar/test.xsd" uri="./test.xsd"/>
+  <!-- OASIS: If the catalog entry file is specified with a relative URI, it is relative to the base URI of the document that contains the processing instruction. -->
+  <system systemId="http://foo.bar/test.xsd" uri="./test.xsd" />
 </catalog>

_ext/eclipse-wtp/src/test/resources/xml/expected/xml_space.xml renamed to _ext/eclipse-wtp/src/test/resources/xml/expected/xml_space.test

@@ -6,14 +6,14 @@
         <xs:element name="x">
           <xs:simpleType>
             <xs:restriction base="xs:string">
-              <xs:whiteSpace value="collapse"/>
+              <xs:whiteSpace value="collapse" />
             </xs:restriction>
           </xs:simpleType>
-		</xs:element>        
+        </xs:element>
         <xs:element name="y">
           <xs:simpleType>
             <xs:restriction base="xs:string">
-              <xs:whiteSpace value="preserve"/>
+              <xs:whiteSpace value="preserve" />
             </xs:restriction>
           </xs:simpleType>
         </xs:element>

_ext/eclipse-wtp/src/test/resources/xml/expected/xsd_not_found.xml renamed to _ext/eclipse-wtp/src/test/resources/xml/expected/xsd_not_found.test

@@ -25,9 +25,9 @@
 import com.diffplug.spotless.extra.EclipseBasedStepBuilder;
 
 /** Formatter step which calls out to the Groovy-Eclipse formatter. */
-public final class WtpEclipseFormatterStep {
+public final class EclipseWtpFormatterStep {
 	// prevent direct instantiation
-	private WtpEclipseFormatterStep() {}
+	private EclipseWtpFormatterStep() {}
 
 	private static final String NAME = "eclipse wtp formatters";
 	private static final String FORMATTER_PACKAGE = "com.diffplug.spotless.extra.eclipse.wtp.";

_ext/eclipse-wtp/src/test/resources/xml/expected/xsd_relative.xml renamed to _ext/eclipse-wtp/src/test/resources/xml/expected/xsd_relative.test

@@ -45,18 +45,18 @@ private enum WTP {
 		// @formatter:off
 		CSS(	"body {\na: v;   b:   \nv;\n}  \n",
 				"body {\n\ta: v;\n\tb: v;\n}",
-				WtpEclipseFormatterStep::createCssBuilder),
+				EclipseWtpFormatterStep::createCssBuilder),
 		HTML(	"<!DOCTYPE html> <html>\t<head> <meta   charset=\"UTF-8\"></head>\n</html>  ",
 				"<!DOCTYPE html>\n<html>\n<head>\n<meta charset=\"UTF-8\">\n</head>\n</html>\n",
-				WtpEclipseFormatterStep::createHtmlBuilder),
+				EclipseWtpFormatterStep::createHtmlBuilder),
 		JS(		"function f(  )   {\na.b(1,\n2);}",
 				"function f() {\n    a.b(1, 2);\n}",
-				WtpEclipseFormatterStep::createJsBuilder),
+				EclipseWtpFormatterStep::createJsBuilder),
 		JSON(	"{\"a\": \"b\",	\"c\":   { \"d\": \"e\",\"f\": \"g\"}}",
 				"{\n\t\"a\": \"b\",\n\t\"c\": {\n\t\t\"d\": \"e\",\n\t\t\"f\": \"g\"\n\t}\n}",
-				WtpEclipseFormatterStep::createJsonBuilder),
+				EclipseWtpFormatterStep::createJsonBuilder),
 		XML(	"<a><b>   c</b></a>", "<a>\n\t<b> c</b>\n</a>",
-				WtpEclipseFormatterStep::createXmlBuilder);
+				EclipseWtpFormatterStep::createXmlBuilder);
 		// @formatter:on
 
 		public final String input;
@@ -132,7 +132,7 @@ private FormatterStep createStepForDefaultVersion(Consumer<Properties> config) t
 		OutputStream tempOut = new FileOutputStream(tempFile);
 		configProps.store(tempOut, "test properties");
 		EclipseBasedStepBuilder builder = wtp.builderMethod.apply(TestProvisioner.mavenCentral());
-		builder.setVersion(WtpEclipseFormatterStep.defaultVersion());
+		builder.setVersion(EclipseWtpFormatterStep.defaultVersion());
 		builder.setPreferences(Arrays.asList(tempFile));
 		return builder.build();
 	}

_ext/eclipse-wtp/src/test/resources/xml/input/dtd_relative.xml renamed to _ext/eclipse-wtp/src/test/resources/xml/input/dtd_relative.test

@@ -25,6 +25,11 @@ public class CppDefaults {
 	//Prevent instantiation
 	private CppDefaults() {};
 
+	/** Filtering based on Eclipse-CDT <code>org.eclipse.core.contenttype.contentTypes</code> */
+	/**
+	 * Filter based on Eclipse-CDT <code>org.eclipse.core.contenttype.contentTypes</code>
+	 * extension <code>cSource</code>, <code>cHeader</code>, <code>cxxSource</code> and <code>cxxHeader</code>.
+	 */
 	public static final List<String> FILE_FILTER = Collections.unmodifiableList(
 			Arrays.asList("c", "h", "C", "cpp", "cxx", "cc", "c++", "h", "hpp", "hh", "hxx", "inc")
 					.stream().map(s -> {

_ext/eclipse-wtp/src/test/resources/xml/input/xml_space.xml renamed to _ext/eclipse-wtp/src/test/resources/xml/input/xml_space.test

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2016 DiffPlug
+ *
+ * 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 com.diffplug.spotless.xml;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/** Common utilities for XML */
+public class XmlDefaults {
+	//Prevent instantiation
+	private XmlDefaults() {};
+
+	/**
+	 * Filter based on Eclipse-WTP <code>org.eclipse.core.contenttype.contentTypes</code>
+	 * extension <code>org.eclipse.wst.xml.core.xmlsource</code>
+	 */
+	public static final List<String> FILE_FILTER = Collections.unmodifiableList(
+			Arrays.asList("xml", "xsl", "xslt", "wsdl", "xsd", "exsd", "xmi")
+					.stream().map(s -> "**/*." + s).collect(Collectors.toList()));
+
+	/** Delimiter covers beginning of elements and processing instructions. */
+	public static final String DELIMITER_EXPR = "\\<[a-zA-Z\\?]";
+}

_ext/eclipse-wtp/src/test/resources/xml/input/xsd_not_found.xml renamed to _ext/eclipse-wtp/src/test/resources/xml/input/xsd_not_found.test

@@ -0,0 +1,7 @@
+@ParametersAreNonnullByDefault
+@ReturnValuesAreNonnullByDefault
+package com.diffplug.spotless.xml;
+
+import javax.annotation.ParametersAreNonnullByDefault;
+
+import com.diffplug.spotless.annotations.ReturnValuesAreNonnullByDefault;

_ext/eclipse-wtp/src/test/resources/xml/input/xsd_relative.xml renamed to _ext/eclipse-wtp/src/test/resources/xml/input/xsd_relative.test

@@ -2,6 +2,7 @@
 
 ### Version 3.15.0-SNAPSHOT - TBD ([javadoc](https://diffplug.github.io/spotless/javadoc/snapshot/), [snapshot](https://oss.sonatype.org/content/repositories/snapshots/com/diffplug/spotless/spotless-plugin-gradle/))
 
+* Added `xml` support ([#140](https://github.com/diffplug/spotless/issues/140)) using formatter of Eclipse WTP 3.9.5 ([#241](https://github.com/diffplug/spotless/pull/241)).
 * Added C/C++ support using formatter of Eclipse CDT 9.4.3 ([#232](https://github.com/diffplug/spotless/issues/232)).
 * Updated default groovy-eclipse from 4.8.0 to 4.8.1 ([#288](https://github.com/diffplug/spotless/pull/288)). New version is based on [Groovy-Eclipse 3.0.0](https://github.com/groovy/groovy-eclipse/wiki/3.0.0-Release-Notes).
 * LicenseHeaderStep now wont attempt to add license to `module-info.java` ([#272](https://github.com/diffplug/spotless/pull/272)).

_ext/eclipse-wtp/src/test/resources/xml/restrictions/catalog.xml

@@ -79,6 +79,7 @@ Spotless can check and apply formatting to any plain-text file, using simple rul
 
 * Eclipse's [CDT](#eclipse-cdt) C/C++ code formatter
 * Eclipse's java code formatter (including style and import ordering)
+* Eclipse's [WTP-XML](#eclipse-wtp-xml) XML code formatter
 * Google's [google-java-format](https://github.com/google/google-java-format)
 * [Groovy Eclipse](#groovy-eclipse)'s groovy code formatter
 * [FreshMark](https://github.com/diffplug/freshmark) (markdown with variables)
@@ -317,6 +318,32 @@ spotless {
 
 Use the Eclipse to define the *Code Style preferences* (see [Eclipse documentation](https://www.eclipse.org/documentation/)). Within the preferences *Edit...* dialog, you can export your configuration as XML file, which can be used as a `configFile`. If no `configFile` is provided, the CDT default configuration is used.
 
+<a name="xml-wtp"></a>
+
+## Applying to XML sources
+
+```gradle
+spotless {
+  xml {
+    target '**/*.xml' // Change file filter. By default files with 'xml', 'xsl', 'xslt', 'wsdl', 'xsd', 'exsd' and 'xmi' extension are supported
+    eclipse().configFile './xml-formatter.prefs' // Properties file of the Eclipse WTP formatter
+    // Use for example eclipse('4.7.3a') to specify a specific version of Eclipse,
+    // available versions are: https://github.com/diffplug/spotless/tree/master/lib-extra/src/main/resources/com/diffplug/spotless/extra/eclipse_wtp_formatters
+    // also supports license headers
+    licenseHeader '<!-- Licensed under Apache-2.0 -->'	// License header
+    licenseHeaderFile './license.txt'	// License header file
+  }
+}
+```
+
+<a name="eclipse-wtp-xml"></a>
+
+### Eclipse [WTP](https://www.eclipse.org/webtools/) XML formatter
+Use Eclipse to define the *XML editor preferences* (see [Eclipse documentation](https://www.eclipse.org/documentation/)). The preferences are stored below your Eclipse workspace directory in `.metadata/.plugins/org.eclipse.core.runtime/org.eclipse.wst.xml.core.prefs`. Note that only the differences to the default configuration are stored within the file. Omit the 'configFile' entirely to use the default Eclipse configuration.
+
+The Eclipse WTP formatter supports DTD/XSD restrictions on white spaces. For XSD/DTD lookup, relative and absolute XSD/DTD URIs are supported. Furthermore a user catalog can be configured using the `userCatalog` property key. Add the property to the preference file or add an additional preference or properties files as an additional argument to the `configFile`.
+
+
 <a name="license-header"></a>
 
 ## License header options

_ext/eclipse-wtp/src/test/resources/xml/restrictions/test.xsd

@@ -56,14 +56,13 @@ public void configFile(Object... configFiles) {
 
 	}
 
-	/** If the user hasn't specified the files yet, we'll assume he/she means all of the C/C++ files. */
 	@Override
 	protected void setupTask(SpotlessTask task) {
 		if (target == null) {
 			/*
 			 * The org.gradle.language.c and org.gradle.language.cpp source sets are seldom used.
 			 * Most Gradle C/C++ use external CMake builds (so the source location is unknown to Gradle).
-			 * Hence file extension based filtering is used in line with the org.eclipse.core.contenttype.contentTypes
+			 * Hence file extension based filtering is used in line with the org.eclipse.core.contenttype.contentTypes<
 			 * defined by the CDT plugin.
 			 */
 			target(CppDefaults.FILE_FILTER.toArray());

lib-extra/src/main/java/com/diffplug/spotless/extra/wtp/WtpEclipseFormatterStep.java renamed to lib-extra/src/main/java/com/diffplug/spotless/extra/wtp/EclipseWtpFormatterStep.java

@@ -118,6 +118,11 @@ public void sql(Action<SqlExtension> closure) {
 		configure(SqlExtension.NAME, SqlExtension.class, closure);
 	}
 
+	/** Configures the special xml-specific extension for XML/XSL/... files (XHTML is excluded). */
+	public void xml(Action<XmlExtension> closure) {
+		configure(XmlExtension.NAME, XmlExtension.class, closure);
+	}
+
 	/** Configures the special C/C++-specific extension. */
 	public void cpp(Action<CppExtension> closure) {
 		configure(CppExtension.NAME, CppExtension.class, closure);