First release

node_modules/nes.css/scripts/getBuildData.js

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+const git = require('git-rev-sync'); /* eslint-disable-line import/no-extraneous-dependencies */
+
+module.exports = (isCompiled = false) => {
+  let buildData = '';
+
+  if (git.branch() !== 'master') {
+    if (isCompiled) {
+      buildData += `
+        Build Date: ${(new Date()).toISOString()}
+        Node Version: ${process.version}`;
+    }
+
+    buildData += `
+      Branch: ${git.branch()}
+      Commit: ${git.long()}`;
+
+    if (process.env.CIRCLECI) {
+      buildData += `
+        Build Number (CircleCI): ${process.env.CIRCLE_BUILD_NUM}`;
+    }
+  }
+
+  return buildData.replace(/^  +/gm, '  ');
+};

node_modules/nes.css/scripts/getFileAsDataURI.js

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+/* eslint-disable import/no-extraneous-dependencies */
+const filetype = require('file-type');
+const fs = require('fs');
+const path = require('path');
+/* eslint-enable */
+
+module.exports = (fileString) => {
+  const filepath = path.resolve(__dirname, fileString.getValue());
+  const fileBuffer = fs.readFileSync(filepath);
+
+  const fileDataURI = fileBuffer.toString('base64');
+  const { mime } = filetype(fileBuffer);
+
+  return `data:${mime};base64,${fileDataURI}`;
+};

node_modules/nes.css/scripts/scssFunctions.js

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+const { types } = require('node-sass'); /* eslint-disable-line import/no-extraneous-dependencies */
+
+const getBuildData = require('./getBuildData');
+const getFileAsDataURI = require('./getFileAsDataURI');
+
+module.exports = {
+  'build-data()': () => types.String(getBuildData(true)),
+  'get-file-as-data-uri($filepath)': filepath => types.String(getFileAsDataURI(filepath)),
+};

node_modules/nes.css/scripts/updatePackageHeader.js

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+#!/usr/bin/env node
+
+const fs = require('fs');
+const path = require('path');
+
+const getBuildData = require('./getBuildData');
+
+const nextVersion = process.argv[2];
+
+if (!nextVersion) {
+  throw new Error('This script requires a version number to be provided');
+}
+
+// Update the SCSS Package Header
+const SCSSFilePath = path.resolve('scss', 'nes-core.scss');
+let SCSSFile = fs.readFileSync(SCSSFilePath, 'utf8');
+
+SCSSFile = SCSSFile.replace(/^ {2}Version: development/m, `  Version: ${nextVersion}`);
+SCSSFile = SCSSFile.replace(/^#{build-data\(\)}/m, getBuildData());
+
+fs.writeFileSync(SCSSFilePath, SCSSFile, 'utf8');
+
+// Update the SCSS Package Header
+const CSSFilePath = path.resolve('css', 'nes.css');
+let CSSFile = fs.readFileSync(CSSFilePath, 'utf8');
+
+CSSFile = CSSFile.replace(/^ {2}Version: development/m, `  Version: ${nextVersion}`);
+
+fs.writeFileSync(CSSFilePath, CSSFile, 'utf8');