Add some simple stats at the end to help with progress, but give a --quiet option if you don't want that.

commands/codedoc.js

@@ -2,11 +2,10 @@
 import fs from "fs";
 import assert from "assert";
 import logging from '../lib/logging.js';
-import { mkdir, mkdir_to, glob } from "../lib/builderator.js";
+import { mkdir_to, glob } from "../lib/builderator.js";
 import { create_renderer } from "../lib/docgen.js";
 import path from "path";
 import slugify from "slugify";
-import template from "lodash/template.js";
 import * as acorn from "acorn";
 import * as acorn_walk from "acorn-walk";
 
@@ -16,6 +15,7 @@ export const description = "Describe your command here."
 
 // your command uses the npm package commander's options format
 export const options = [
+  ["--quiet", "Don't output the stats at the end."]
 ]
 
 // example of a positional argument, it's the 1st argument to main
@@ -28,6 +28,7 @@ export const required = [
 
 const RENDERER = create_renderer();
 const CAPS_WORDS = ["BUG", "TODO", "WARNING", "FOOTGUN", "DEPRECATED"];
+const STATS = {total: 0, docs: 0, undoc: 0};
 
 const slug = (instring) => slugify(instring, { lower: true, strict: true, trim: true});
 
@@ -98,6 +99,7 @@ class ParseWalker {
 
         new_method.code = this.slice_code(new_method.range);
 
+        this.update_stats(new_method); // methods can't go through add_export
         new_class.methods.push(new_method);
       }
     });
@@ -142,6 +144,16 @@ class ParseWalker {
     }
   }
 
+  update_stats(exp) {
+    STATS.total += 1;
+
+    if(exp.comment) {
+      STATS.docs += 1;
+    } else {
+      STATS.undoc += 1;
+    }
+  }
+
   add_export(id, exp) {
     exp.name = id.name;
     exp.slug = exp.slug ? exp.slug : slug(id.name);
@@ -150,6 +162,8 @@ class ParseWalker {
     this.has_CAPS(exp);
     exp.code = this.slice_code(exp.range);
     this.exported.push(exp);
+
+    this.update_stats(exp);
   }
 
   slice_code(range) {
@@ -314,5 +328,13 @@ export const main = async (source_globs, opts) => {
   // now write the grand index
   const index_name = path.join(opts.output, "index.json");
   fs.writeFileSync(index_name, dump(index));
+
+
+  const percent = Math.floor(100 * STATS.docs / STATS.total);
+
+  if(!opts.quiet) {
+    console.log(`Total ${STATS.total}, ${percent}% documented (${STATS.docs} docs vs. ${STATS.undoc} no docs).`);
+  }
+
   process.exit(0);
 }