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import async from "async";
import fs from "fs";
import p from "path";
import util from "util";
/**
* Load Bob task files in parallel.
* Only task files in specified taskNames will be loaded.
*
* @param {Array} taskNames: an array of task names
* @param {String} dir: base directory where task files are located
* @param {Function} cb: standard cb(err, result) callback
*/
function load(taskNames, dir, cb) {
const jobs = {};
taskNames.forEach((taskName) => {
jobs[taskName] = function (cb) {
const file = p.join(dir, taskName + ".json");
fs.access(file, fs.constants.F_OK, (err) => {
if (err) {
const _err = new Error(
util.format(
"Unknown command: %s, use --help for more info",
taskName,
),
);
cb(_err);
} else {
fs.readFile(file, cb);
}
});
};
});
function parse(err, results) {
if (!err) {
Object.keys(results).forEach((taskName) => {
results[taskName] = JSON.parse(results[taskName]);
});
}
cb(err, results);
}
async.parallel(jobs, parse);
}
const exports = {
load: load,
};
export { exports as default };
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