Implement renderInstructions in themer-wallpaper-diamonds

cli/packages/themer-wallpaper-diamonds/README.md

@@ -35,3 +35,4 @@ to which you would pass `<width>x<height>`. For example, to forego the default r
 
     themer -c my-colors.js -t themer-wallpaper-diamonds --themer-wallpaper-diamonds-size 1024x768 --themer-wallpaper-diamonds-size 320x960 -o gen
 
+The generated files will be listed in `<output dir>/README.md`.

cli/packages/themer-wallpaper-diamonds/lib/__snapshots__/index.spec.js.snap

@@ -0,0 +1,10 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`themer "diamonds" wallpaper should list outputfiles 1`] = `
+"
+Files generated:
+
+* \`themer-wallpaper-diamonds-dark-1000x1000.svg\`
+* \`themer-wallpaper-diamonds-light-1000x1000.svg\`
+"
+`;

cli/packages/themer-wallpaper-diamonds/lib/index.js

@@ -2,6 +2,7 @@ const {
   getSizesFromOptOrDefault,
   deepFlatten,
   colorSets: getColorSets,
+  listOutputFiles,
 } = require('themer-utils');
 
 const SIZE = 100;
@@ -127,4 +128,7 @@ const render = (colors, options) => {
   );
 }
 
-module.exports = { render };
+module.exports = {
+  render,
+  renderInstructions: listOutputFiles,
+};

cli/packages/themer-wallpaper-diamonds/lib/index.spec.js

@@ -1,4 +1,4 @@
-const { render } = require('./index');
+const { render, renderInstructions } = require('./index');
 const { colors } = require('../../themer-colors-default');
 
 describe('themer "diamonds" wallpaper', () => {
@@ -8,4 +8,9 @@ describe('themer "diamonds" wallpaper', () => {
       expect(file.contents.toString('utf8')).not.toContain('undefined');
     });
   });
+  it('should list outputfiles', async () => {
+    const files = await Promise.all(render(colors, { 'themer-wallpaper-diamonds-size': '1000x1000' }));
+    const instructions = renderInstructions(files.map(({ name }) => name));
+    expect(instructions).toMatchSnapshot();
+  });
 });

cli/packages/themer-wallpaper-diamonds/package.json

@@ -23,7 +23,7 @@
   },
   "homepage": "https://github.com/mjswensen/themer/tree/master/cli/packages/themer-wallpaper-diamonds#readme",
   "dependencies": {
-    "themer-utils": "^1.0.0"
+    "themer-utils": "^1.2.0"
   },
   "peerDependencies": {
     "themer": "^3"