Feature/use native npm

.circleci/config.yml

@@ -126,21 +126,9 @@ jobs:
       shell: cmd.exe
     steps:
       - checkout
-      # install openjdk8
-      - restore_cache:
-          key: choco2-ojdkbuild8
       - run:
           name: install 
           command: choco install ojdkbuild8
-      - save_cache:
-          key: choco2-ojdkbuild8
-          paths:
-            - ~\AppData\Local\Temp\chocolatey\ojdkbuild8
-      # do the test
-      - restore_cache:
-          keys:
-          - gradle-deps-win2-{{ checksum "build.gradle" }}-{{ checksum "gradle.properties" }}
-          - gradle-deps-win2-
       - run:
           name: gradlew check
           command: gradlew check --build-cache
@@ -152,13 +140,15 @@ jobs:
           path: plugin-gradle/build/test-results/test
       - store_test_results:
           path: plugin-maven/build/test-results/test
-      - save_cache:
-          key: gradle-deps-win2-{{ checksum "build.gradle" }}-{{ checksum "gradle.properties" }}
-          paths:
-            - ~/.gradle/caches
-            - ~/.gradle/wrapper
-            - ~/.m2
-            - ~/project/plugin-maven/build/localMavenRepository
+      - run:
+          name: gradlew npmTest
+          command: gradlew npmTest --build-cache
+      - store_test_results:
+          path: testlib/build/test-results/npm
+      - store_test_results:
+          path: plugin-maven/build/test-results/npm
+      - store_test_results:
+          path: plugin-gradle/build/test-results/npm
   changelog_print:
     << : *env_gradle
     steps:

CHANGES.md

@@ -10,6 +10,12 @@ This document is intended for Spotless developers.
 We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (starting after version `1.27.0`).
 
 ## [Unreleased]
+### Changed
+* Nodejs-based formatters `prettier` and `tsfmt` now use native node instead of the J2V8 approach. ([#606](https://github.com/diffplug/spotless/pull/606))
+  * This removes the dependency to the no-longer-maintained Linux/Windows/macOs variants of J2V8.
+  * This enables spotless to use the latest `prettier` versions (instead of being stuck at prettier version <= `1.19.0`)
+  * Bumped default versions, prettier `1.16.4` -> `2.0.5`, tslint `5.12.1` -> `6.1.2`
+
 
 ## [1.34.0] - 2020-06-05
 ### Added

lib/src/main/java/com/diffplug/spotless/npm/JsonEscaper.java

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2016-2020 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.npm;
+
+import static java.util.Objects.requireNonNull;
+
+/**
+ * Simple implementation on how to escape values when printing json.
+ * Implementation is partly based on https://github.com/stleary/JSON-java
+ */
+final class JsonEscaper {
+	private JsonEscaper() {
+		// no instance
+	}
+
+	public static String jsonEscape(Object val) {
+		requireNonNull(val);
+		if (val instanceof JsonRawValue) {
+			return jsonEscape((JsonRawValue) val);
+		}
+		if (val instanceof String) {
+			return jsonEscape((String) val);
+		}
+		return val.toString();
+	}
+
+	private static String jsonEscape(JsonRawValue jsonRawValue) {
+		return jsonRawValue.getRawJson();
+	}
+
+	private static String jsonEscape(String unescaped) {
+		/**
+		 * the following characters are reserved in JSON and must be properly escaped to be used in strings:
+		 *
+		 * Backspace is replaced with \b
+		 * Form feed is replaced with \f
+		 * Newline is replaced with \n
+		 * Carriage return is replaced with \r
+		 * Tab is replaced with \t
+		 * Double quote is replaced with \"
+		 * Backslash is replaced with \\
+		 *
+		 * additionally we handle xhtml '</bla>' string
+		 * and non-ascii chars
+		 */
+		StringBuilder escaped = new StringBuilder();
+		escaped.append('"');
+		char b;
+		char c = 0;
+		for (int i = 0; i < unescaped.length(); i++) {
+			b = c;
+			c = unescaped.charAt(i);
+			switch (c) {
+			case '\"':
+				escaped.append('\\').append('"');
+				break;
+			case '\n':
+				escaped.append('\\').append('n');
+				break;
+			case '\r':
+				escaped.append('\\').append('r');
+				break;
+			case '\t':
+				escaped.append('\\').append('t');
+				break;
+			case '\b':
+				escaped.append('\\').append('b');
+				break;
+			case '\f':
+				escaped.append('\\').append('f');
+				break;
+			case '\\':
+				escaped.append('\\').append('\\');
+				break;
+			case '/':
+				if (b == '<') {
+					escaped.append('\\');
+				}
+				escaped.append(c);
+				break;
+			default:
+				if (c < ' ' || (c >= '\u0080' && c < '\u00a0')
+						|| (c >= '\u2000' && c < '\u2100')) {
+					escaped.append('\\').append('u');
+					String hexString = Integer.toHexString(c);
+					escaped.append("0000", 0, 4 - hexString.length());
+					escaped.append(hexString);
+				} else {
+					escaped.append(c);
+				}
+			}
+		}
+		escaped.append('"');
+		return escaped.toString();
+	}
+
+}

lib/src/main/java/com/diffplug/spotless/npm/TsFmtResult.java → lib/src/main/java/com/diffplug/spotless/npm/JsonRawValue.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 DiffPlug
+ * Copyright 2016-2020 DiffPlug
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,27 +15,23 @@
  */
 package com.diffplug.spotless.npm;
 
-class TsFmtResult {
+import static java.util.Objects.requireNonNull;
 
-	private final String message;
-	private final Boolean error;
-	private final String formatted;
-
-	TsFmtResult(String message, Boolean error, String formatted) {
-		this.message = message;
-		this.error = error;
-		this.formatted = formatted;
-	}
+/**
+ * Wrapper class to signal the contained string must not be escaped when printing to json.
+ */
+class JsonRawValue {
+	private final String rawJson;
 
-	String getMessage() {
-		return message;
+	private JsonRawValue(String rawJson) {
+		this.rawJson = requireNonNull(rawJson);
 	}
 
-	Boolean isError() {
-		return error;
+	static JsonRawValue wrap(String rawJson) {
+		return new JsonRawValue(rawJson);
 	}
 
-	String getFormatted() {
-		return formatted;
+	public String getRawJson() {
+		return rawJson;
 	}
 }