refactor

js/commander.js

@@ -0,0 +1,20 @@
+const commander = require("commander");
+const program = new commander.Command();
+const something = program.parse(process.argv);
+
+let lib;
+
+function parse() {
+  return something;
+}
+
+function args() {
+  return something.args;
+}
+
+lib = {
+  args,
+  parse
+};
+
+module.exports = lib;

js/git.js

@@ -0,0 +1,19 @@
+const _ = require("lodash");
+
+const path = x => require("../" + x);
+const immutable = path("js/immutable");
+const shell = path("js/shell");
+
+let lib;
+
+function setCurrentBranch(dp) {
+  const cmd = "git rev-parse --abbrev-ref HEAD";
+
+  return shell.capture(cmd).then(x => immutable.set(dp, "currentBranch", x));
+}
+
+lib = {
+  setCurrentBranch
+};
+
+module.exports = lib;

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;