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metamask-extension/test/helpers/file.js

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2022-07-20 17:33:16 +02:00
/* eslint-disable node/shebang */
const path = require('path');
const { promises: fs, constants: fsConstants } = require('fs');
async function isWritable(directory) {
try {
await fs.access(directory, fsConstants.W_OK);
return true;
} catch (error) {
if (error.code !== 'EACCES') {
throw error;
}
return false;
}
}
async function getFirstParentDirectoryThatExists(directory) {
let nextDirectory = directory;
for (;;) {
try {
await fs.access(nextDirectory, fsConstants.F_OK);
return nextDirectory;
} catch (error) {
if (error.code !== 'ENOENT') {
throw error;
} else if (nextDirectory === path.dirname(nextDirectory)) {
throw new Error('Failed to find parent directory that exists');
}
nextDirectory = path.dirname(nextDirectory);
}
}
}
module.exports = {
isWritable,
getFirstParentDirectoryThatExists,
};