From fd4137b596d03698d635582db077eb5b31360520 Mon Sep 17 00:00:00 2001
From: Vyacheslav Matyukhin <me@berekuk.ru>
Date: Sun, 18 Sep 2022 18:32:53 +0400
Subject: [PATCH] run-file.js improvements

---
 packages/squiggle-lang/scripts/run-file.js  | 38 -------------
 packages/squiggle-lang/scripts/run-file.mjs | 60 +++++++++++++++++++++
 2 files changed, 60 insertions(+), 38 deletions(-)
 delete mode 100755 packages/squiggle-lang/scripts/run-file.js
 create mode 100755 packages/squiggle-lang/scripts/run-file.mjs

diff --git a/packages/squiggle-lang/scripts/run-file.js b/packages/squiggle-lang/scripts/run-file.js
deleted file mode 100755
index f697f909..00000000
--- a/packages/squiggle-lang/scripts/run-file.js
+++ /dev/null
@@ -1,38 +0,0 @@
-#!/usr/bin/env node
-const s = require("@quri/squiggle-lang");
-const fs = require("fs");
-
-const measure = (cb, times = 1) => {
-  const t1 = new Date();
-
-  for (let i = 1; i <= times; i++) {
-    cb();
-  }
-  const t2 = new Date();
-  return (t2 - t1) / 1000;
-};
-
-const project = s.SqProject.create();
-const sampleCount = process.env.SAMPLE_COUNT;
-if (sampleCount) {
-  project.setEnvironment({
-    sampleCount,
-    xyPointLength: sampleCount,
-  });
-}
-
-const src = fs.readFileSync(process.argv[2], "utf-8");
-if (!src) {
-  throw new Error("Expected src");
-}
-console.log(`Running ${src}`);
-project.setSource("a", src);
-
-const t = measure(() => project.run("a"));
-console.log(`Time: ${t}`);
-
-const result = project.getResult("a");
-console.log("Result:", result.tag, result.value.toString());
-
-const bindings = project.getBindings("a");
-console.log("Bindings:", bindings.toString());
diff --git a/packages/squiggle-lang/scripts/run-file.mjs b/packages/squiggle-lang/scripts/run-file.mjs
new file mode 100755
index 00000000..65d67cdc
--- /dev/null
+++ b/packages/squiggle-lang/scripts/run-file.mjs
@@ -0,0 +1,60 @@
+#!/usr/bin/env node
+import { SqProject } from "@quri/squiggle-lang";
+import fs from "fs";
+
+import { Command } from "commander";
+
+const measure = (cb, times = 1) => {
+  const t1 = new Date();
+
+  for (let i = 1; i <= times; i++) {
+    cb();
+  }
+  const t2 = new Date();
+  return (t2 - t1) / 1000;
+};
+
+const red = (s) => `\x1b[31m${s}\x1b[0m`;
+const green = (s) => `\x1b[32m${s}\x1b[0m`;
+
+const program = new Command();
+
+program.option("-t, --time");
+program.option("-o, --output");
+program.arguments("<string>");
+
+const options = program.parse(process.argv);
+
+const project = SqProject.create();
+const sampleCount = process.env.SAMPLE_COUNT;
+if (sampleCount) {
+  project.setEnvironment({
+    sampleCount: Number(sampleCount),
+    xyPointLength: Number(sampleCount),
+  });
+}
+
+const src = fs.readFileSync(program.args[0], "utf-8");
+if (!src) {
+  throw new Error("Expected src");
+}
+
+project.setSource("main", src);
+const t = measure(() => project.run("main"));
+
+const bindings = project.getBindings("main");
+const result = project.getResult("main");
+
+if (options.output) {
+  console.log("Result:", result.tag, result.value.toString());
+  console.log("Bindings:", bindings.toString());
+}
+
+if (options.time) {
+  console.log(
+    "Time:",
+    String(t),
+    result.tag === "Error" ? red(result.tag) : green(result.tag),
+    result.tag === "Error" ? result.value.toString() : ""
+  );
+}