From 926d99a2d28a4aafeca5e7cf6908920461723c0e Mon Sep 17 00:00:00 2001
From: Matt Swensen <swensen.matthew@gmail.com>
Date: Fri, 20 Mar 2020 07:04:35 -0600
Subject: [PATCH] Implement renderInstructions in themer-wallpaper-triangles

---
 cli/packages/themer-wallpaper-triangles/README.md        | 2 ++
 .../lib/__snapshots__/index.spec.js.snap                 | 9 +++++++++
 cli/packages/themer-wallpaper-triangles/lib/index.js     | 2 ++
 .../themer-wallpaper-triangles/lib/index.spec.js         | 8 +++++++-
 cli/packages/themer-wallpaper-triangles/package.json     | 2 +-
 5 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/cli/packages/themer-wallpaper-triangles/README.md b/cli/packages/themer-wallpaper-triangles/README.md
index 6e7c36e..430f00e 100644
--- a/cli/packages/themer-wallpaper-triangles/README.md
+++ b/cli/packages/themer-wallpaper-triangles/README.md
@@ -32,3 +32,5 @@ By default, `themer-wallpaper-triangles` will output wallpapers at the following
 to which you would pass `<width>x<height>`. For example, to forego the default resolutions and generate two wallpapers, one 1024 by 768 and one 320 by 960:
 
     themer -c my-colors.js -t themer-wallpaper-triangles --themer-wallpaper-triangles-size 1024x768 --themer-wallpaper-triangles-size 320x960 -o gen
+
+The generated files will be listed in `<output dir>/README.md`.
diff --git a/cli/packages/themer-wallpaper-triangles/lib/__snapshots__/index.spec.js.snap b/cli/packages/themer-wallpaper-triangles/lib/__snapshots__/index.spec.js.snap
index 1d7bc5d..cf731fe 100644
--- a/cli/packages/themer-wallpaper-triangles/lib/__snapshots__/index.spec.js.snap
+++ b/cli/packages/themer-wallpaper-triangles/lib/__snapshots__/index.spec.js.snap
@@ -1,5 +1,14 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`themer "triangles" wallpaper should list outputfiles 1`] = `
+"
+Files generated:
+
+* \`themer-wallpaper-triangles-dark-1000x1000.svg\`
+* \`themer-wallpaper-triangles-light-1000x1000.svg\`
+"
+`;
+
 exports[`themer "triangles" wallpaper when given both a light and a dark theme and when rendering a given resolution should render valid SVG 1`] = `
 "
             <svg width=\\"600\\" height=\\"600\\" viewBox=\\"0 0 600 600\\" xmlns=\\"http://www.w3.org/2000/svg\\">
diff --git a/cli/packages/themer-wallpaper-triangles/lib/index.js b/cli/packages/themer-wallpaper-triangles/lib/index.js
index 80f8c29..f91d3a7 100644
--- a/cli/packages/themer-wallpaper-triangles/lib/index.js
+++ b/cli/packages/themer-wallpaper-triangles/lib/index.js
@@ -2,6 +2,7 @@ const {
   getSizesFromOptOrDefault,
   colorSets: getColorSets,
   deepFlatten,
+  listOutputFiles,
 } = require('themer-utils');
 
 const render = (colors, options) => {
@@ -91,4 +92,5 @@ const render = (colors, options) => {
 
 module.exports = {
   render,
+  renderInstructions: listOutputFiles,
 };
diff --git a/cli/packages/themer-wallpaper-triangles/lib/index.spec.js b/cli/packages/themer-wallpaper-triangles/lib/index.spec.js
index 7a55436..37bfb8c 100644
--- a/cli/packages/themer-wallpaper-triangles/lib/index.spec.js
+++ b/cli/packages/themer-wallpaper-triangles/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 "triangles" wallpaper', () => {
@@ -57,4 +57,10 @@ describe('themer "triangles" wallpaper', () => {
   test('when given both a light and a dark theme', colors, 4);
   test('when given only a dark theme', {dark: colors.dark}, 2);
   test('when given only a light theme', {light: colors.light}, 2);
+
+  it('should list outputfiles', async () => {
+    const files = await Promise.all(render(colors, { 'themer-wallpaper-triangles-size': '1000x1000' }));
+    const instructions = renderInstructions(files.map(({ name }) => name));
+    expect(instructions).toMatchSnapshot();
+  });
 });
diff --git a/cli/packages/themer-wallpaper-triangles/package.json b/cli/packages/themer-wallpaper-triangles/package.json
index 3167d8d..5e2f3b8 100644
--- a/cli/packages/themer-wallpaper-triangles/package.json
+++ b/cli/packages/themer-wallpaper-triangles/package.json
@@ -24,7 +24,7 @@
   },
   "homepage": "https://github.com/mjswensen/themer/tree/master/cli/packages/themer-wallpaper-triangles#readme",
   "dependencies": {
-    "themer-utils": "^1.1.0"
+    "themer-utils": "^1.2.0"
   },
   "peerDependencies": {
     "themer": "^1.0.2||^2||^3"