andre/30-seconds-of-code
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Update module.js to cut down I/O operations

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This commit is contained in:
Angelos Chalaris
2018-10-10 20:54:04 +03:00
parent c97b1a6529
commit 582019ada1
1 changed files with 13 additions and 11 deletions
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24
scripts/module.js
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@ -33,6 +33,9 @@ const codeRE = /```\s*js([\s\S]*?)```/;
const tagDatabase = fs.readFileSync('tag_database', 'utf8');
const nodeSnippets = tagDatabase.split('\n').filter(v => v.search(/:.*node/g) !== -1).map(v => v.slice(0,v.indexOf(':')));
const snippets = fs.readdirSync(SNIPPETS_PATH);
const snippetExports = `module.exports = {${snippets.map(v => v.replace('.md', '')).join(',')}}`;
let requires = [];
let importData = '';
const archivedSnippets = fs.readdirSync(SNIPPETS_ARCHIVE_PATH);
// Create `temp` and `dist` folders if they don't already exist.
if (!fs.existsSync(TEMP_PATH)) fs.mkdirSync(TEMP_PATH);
@ -43,17 +46,16 @@ const codeRE = /```\s*js([\s\S]*?)```/;
snippets.forEach(snippet => {
const snippetData = fs.readFileSync(path.join(SNIPPETS_PATH, snippet), 'utf8');
const snippetName = snippet.replace('.md', '');
const code = snippetData.match(codeRE)[1].replace('\n', '');
const toWrite = nodeSnippets.includes(snippetName)
? `${code
.replace(`const ${snippetName}`, `export const ${snippetName}`)
// Prevents errors from being thrown in browser environment
.replace('require(', 'typeof require !== "undefined" && require(')}`
: `export ${code}`;
// Write data to file and append to the imports file
fs.writeFileSync(`${TEMP_PATH}/${snippetName}.js`, toWrite);
fs.appendFileSync(IMPORTS, `\nexport { ${snippetName} } from './temp/${snippetName}.js'`);
})
let code = snippetData.match(codeRE)[1].replace('\n', '');
if (nodeSnippets.includes(snippetName)) {
requires.push(code.match(/const.*=.*require\(([^\)]*)\);/g));
code = code.replace(/const.*=.*require\(([^\)]*)\);/g,'');
}
importData += code;
});
// Write the data to the imports file
requires = [...new Set(requires.filter(Boolean).map(v => v[0].replace('require(', 'typeof require !== "undefined" && require(')))].join('\n');
fs.writeFileSync(IMPORTS, `${requires}\n\n${importData}\n\n${snippetExports}`)
// Write to the proper files and start the `rollup` script
const es5 = babel({