56 lines
1.5 KiB
JavaScript
56 lines
1.5 KiB
JavaScript
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const { template } = require('lodash');
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const { promisify } = require('util');
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const fs = require('fs');
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/**
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* Light wrapper over lodash templates making it safer to be used with javascript source code.
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*
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* In particular, doesn't interfere with use of interpolated strings in javascript.
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*
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* @param {string} content Template source
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* @param {_.TemplateOptions} options Template options
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*/
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const jsSourceTemplate = (content, options) =>
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template(content, {
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interpolate: /<%=([\s\S]+?)%>/g,
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...options,
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});
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const readFile = promisify(fs.readFile, { context: fs });
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const writeFile = promisify(fs.writeFile, { context: fs });
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/**
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* Compile the contents of specified (javascript) file as a lodash template
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*
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* @param {string} filePath Path of file to be used as template
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* @param {_.TemplateOptions} options Lodash template options
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*/
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const jsFileTemplate = async (filePath, options) => {
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const contentBuffer = await readFile(filePath);
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return jsSourceTemplate(contentBuffer.toString(), options);
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};
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/**
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* Write a javascript file using another file as a (lodash) template
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*
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* @param {string} targetFilePath
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* @param {string} sourceFilePath
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* @param {_.TemplateOptions} options options passed to lodash templates
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*/
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const writeJsFileUsingTemplate = async (
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targetFilePath,
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sourceFilePath,
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options,
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variables
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) =>
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writeFile(
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targetFilePath,
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(await jsFileTemplate(sourceFilePath, options))(variables)
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);
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module.exports = {
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jsSourceTemplate,
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jsFileTemplate,
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writeJsFileUsingTemplate,
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};
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