Use prettier to format project's CSS

Part of #88

Signed-off-by: Andrew Obuchowicz <aobuchow@redhat.com>

.github/git-hooks/pre-commit

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# Prettify all selected files
+ ./node_modules/.bin/prettier --write .
+
+# Add back the modified/prettified files to staging
+git add .
+
+exit 0

.gitignore

@@ -1,4 +1,6 @@
-/.metadata/
+# Node
+/node_modules/
+package
 # Maven
 /target/
 /com.aobuchow.themes.spectrum/target/
@@ -7,5 +9,6 @@
 /bin/
 # Eclipse Core      
 /.settings/
+/.metadata/
 # JDT-specific (Eclipse Java Development Tools)     
 .classpath

.prettierignore

@@ -0,0 +1,6 @@
+/node_modules/
+README.MD
+.github/workflows/
+com.aobuchow.themes.spectrum/bin/
+package.json
+package-lock.json

.prettierrc.json

@@ -0,0 +1,12 @@
+{
+  "semi": false,
+  "singleQuote": true,
+  "overrides": [
+    {
+      "files": "com.aobuchow.themes.spectrum/css/preference_styles.css",
+      "options": {
+        "printWidth": 50
+      }
+    }
+  ]
+}

com.aobuchow.themes.spectrum/.externalToolBuilders/Prettier-Format.launch

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<launchConfiguration type="org.eclipse.ui.externaltools.ProgramBuilderLaunchConfigurationType">
+    <stringAttribute key="org.eclipse.debug.core.ATTR_REFRESH_SCOPE" value="${project}"/>
+    <booleanAttribute key="org.eclipse.debug.ui.ATTR_LAUNCH_IN_BACKGROUND" value="true"/>
+    <stringAttribute key="org.eclipse.ui.externaltools.ATTR_LOCATION" value="${project_loc}/../node_modules/prettier/bin-prettier.js"/>
+    <stringAttribute key="org.eclipse.ui.externaltools.ATTR_RUN_BUILD_KINDS" value="auto,"/>
+    <stringAttribute key="org.eclipse.ui.externaltools.ATTR_TOOL_ARGUMENTS" value="--write . --ignore-path ./../.prettierignore"/>
+    <booleanAttribute key="org.eclipse.ui.externaltools.ATTR_TRIGGERS_CONFIGURED" value="true"/>
+    <stringAttribute key="org.eclipse.ui.externaltools.ATTR_WORKING_DIRECTORY" value="${workspace_loc:/com.aobuchow.themes.spectrum}"/>
+</launchConfiguration>

com.aobuchow.themes.spectrum/.project

@@ -20,6 +20,16 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.ui.externaltools.ExternalToolBuilder</name>
+			<triggers>auto,</triggers>
+			<arguments>
+				<dictionary>
+					<key>LaunchConfigHandle</key>
+					<value>&lt;project&gt;/.externalToolBuilders/Prettier-Format.launch</value>
+				</dictionary>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.pde.PluginNature</nature>

package.json

@@ -0,0 +1,22 @@
+{
+  "name": "eclipse-spectrum-theme-dev",
+  "version": "1.0.0",
+  "description": "Development utilities for Eclipse Spectrum Theme",
+  "main": "index.js",
+  "scripts": {
+    "format": "./node_modules/prettier/bin-prettier.js --write ."
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/AObuchow/Eclipse-Spectrum-Theme.git"
+  },
+  "author": "AObuchow",
+  "license": "SEE LICENSE IN https://github.com/AObuchow/Eclipse-Spectrum-Theme/blob/master/LICENSE",
+  "bugs": {
+    "url": "https://github.com/AObuchow/Eclipse-Spectrum-Theme/issues"
+  },
+  "homepage": "https://github.com/AObuchow/Eclipse-Spectrum-Theme#readme",
+  "devDependencies": {
+    "prettier": "2.0.5"
+  }
+}