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March 27, 2017 00:26
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A shell script that finds files in a specified directory and returns the instances it is used within another directory. Used to find files that weren't ever required in another file in a repository
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#!/usr/bin/env node | |
const shell = require('child_process'); | |
const path = require('path') | |
if (process.argv.length <= 3) { | |
console.log(`Usage: ${__filename} path/to/directory/with/needles path/to/haystack`); | |
process.exit(-1); | |
} | |
const filesToCheck = process.argv[2]; | |
const haystack = process.argv[3]; | |
const toShortname = filePath => path.parse(filePath).name; | |
shell.exec(`find ${filesToCheck} -type f`, (error, stdout) => { | |
const needles = stdout.split('\n') | |
.filter(n => n) | |
const notUsed = []; | |
Promise.all( | |
needles.map(file => { | |
const command = `grep -Rn --exclude-dir={node_modules,.git,public,views} "${toShortname(file)}'" ${haystack}`; | |
return new Promise((resolve) => { | |
shell.exec(command, (error, stdout) => { | |
const results = stdout.split('\n') | |
.filter(line => line.includes('import') || line.includes('require')) | |
.filter(n => n) | |
.map(line => line | |
.split(':') | |
.splice(0, 2) | |
.join(':') | |
) | |
console.log('\x1b[36m', file, '\x1b[0m'); | |
if (!results.length) { | |
notUsed.push(file) | |
console.log('\x1b[31m', 'Not Found', '\x1b[0m') | |
} else { | |
results.forEach(match => console.log(match)) | |
} | |
console.log('\n'); | |
resolve(stdout) | |
}); | |
}) | |
}) | |
) | |
.then(() => { | |
if (notUsed.length) { | |
console.log('\x1b[31m', 'These files were not used anywhere', '\x1b[0m') | |
notUsed.forEach(file => console.log(file)) | |
} else { | |
console.log('\x1b[32m', 'All good!', '\x1b[0m') | |
} | |
}) | |
}); |
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