refactor

js/shell.js

@@ -0,0 +1,33 @@
+const _ = require("lodash");
+const util = require("util");
+const child_process = require("child_process");
+const exec = util.promisify(child_process.exec);
+
+let lib;
+
+function run(cmd) {
+  return exec(cmd);
+}
+
+function capture(cmd) {
+  return lib.run(cmd).then(x => x.stdout.trim());
+}
+
+function _something(dp) {
+  return function() {
+    return dp;
+  };
+}
+
+function something(cmd, dp) {
+  return lib.run(cmd).then(lib._something(dp));
+}
+
+lib = {
+  _something,
+  run,
+  capture,
+  something: _.curry(something)
+};
+
+module.exports = lib;