Add export package

docs/exporting.md

@@ -11,23 +11,21 @@ add a `build` script to your `package.json` file.
 }
 ```
 
-### PDF & Screenshots
+### PDF
 
-Version 2 will support exporting to PDF or screenshot with a separate CLI.
-This has not been released yet.
+To export a deck as PDF, install the export CLI package:
 
-<!-- TK
-## PDF Export
-
-Presentations can be exported as PDF using the CLI.
-This works well as a backup option for any unforeseen technical difficulties.
-
-```json
-"script": {
-  "pdf": "mdx-deck pdf deck.mdx"
-}
+```sh
+npm i @mdx-deck/export
 ```
 
+Then run the following command to create a PDF:
+
+```sh
+mdx-deck-export deck.mdx
+```
+
+<!-- TK
 ## Screenshots
 
 A PNG image of the first slide can be exported with the `screenshot` command.

packages/export/.gitignore

@@ -0,0 +1 @@
+dist

packages/export/README.md

@@ -0,0 +1,20 @@
+# MDX Deck Export CLI
+
+```sh
+npm i -D @mdx-deck/export
+```
+
+```sh
+mdx-deck-export deck.mdx
+```
+
+## Options
+
+```
+-d --out-dir    Output directory
+-f --out-file   Output filename
+-p --port       Server port
+-w --width      Width in pixels
+-h --height     Height in pixels
+--no-sandbox    Disable puppeteer sandbox
+```

packages/export/cli.js

@@ -0,0 +1,80 @@
+#!/usr/bin/env node
+const path = require('path')
+const meow = require('meow')
+
+const cli = meow(
+  `
+
+  Usage:
+
+    $ mdx-deck-export deck.mdx
+
+  Options:
+
+    -d --out-dir    Output directory
+    -f --out-file   Output filename
+    -p --port       Server port
+    -w --width      Width in pixels
+    -h --height     Height in pixels
+    --no-sandbox    Disable puppeteer sandbox
+
+`,
+  {
+    flags: {
+      outDir: {
+        type: 'string',
+        alias: 'd',
+        default: 'dist',
+      },
+      outFile: {
+        type: 'string',
+        alias: 'f',
+        default: 'presentation.pdf',
+      },
+      port: {
+        type: 'string',
+        alias: 'p',
+        default: 8080,
+      },
+      width: {
+        type: 'string',
+        alias: 'w',
+        default: 1280,
+      },
+      height: {
+        type: 'string',
+        alias: 'h',
+        default: 960,
+      },
+      sandbox: {
+        type: 'boolean',
+        default: true,
+      },
+    },
+  }
+)
+
+const [input] = cli.input
+
+if (!input) {
+  cli.showHelp(0)
+}
+
+const opts = Object.assign({}, cli.flags, {
+  input,
+  dirname: path.dirname(path.resolve(input)),
+  globals: {
+    FILENAME: JSON.stringify(path.resolve(input)),
+  },
+  host: 'localhost',
+})
+
+require('./index')(opts)
+  .then(filename => {
+    console.log('saved PDF to', filename)
+    process.exit(0)
+  })
+  .catch(err => {
+    console.log(err)
+    process.exit(1)
+  })

packages/export/index.js

@@ -0,0 +1,38 @@
+const path = require('path')
+const puppeteer = require('puppeteer')
+const mkdirp = require('mkdirp')
+const dev = require('mdx-deck/lib/dev')
+
+module.exports = async opts => {
+  const { outDir, outFile, port, width, height, sandbox } = opts
+
+  console.log(width, height)
+  const args = []
+  if (!sandbox) {
+    args.push('--no-sandbox', '--disable-setuid-sandbox')
+  }
+
+  const server = await dev(opts)
+
+  const browser = await puppeteer.launch({ args })
+  const page = await browser.newPage()
+  const filename = path.join(outDir, outFile)
+  mkdirp.sync(outDir)
+
+  await page.goto(`http://localhost:${port}/print`, {
+    waitUntil: 'networkidle2',
+  })
+
+  await page.pdf({
+    width,
+    height,
+    path: filename,
+    scale: 1,
+    printBackground: true,
+  })
+
+  await browser.close()
+  await server.close()
+
+  return filename
+}

packages/export/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "@mdx-deck/export",
+  "version": "2.0.0-0",
+  "main": "index.js",
+  "author": "Brent Jackson <jxnblk@gmail.com>",
+  "license": "MIT",
+  "bin": {
+    "mdx-deck-export": "./cli.js"
+  },
+  "scripts": {
+    "start": "./cli.js ../../docs/demo.mdx"
+  },
+  "dependencies": {
+    "mdx-deck": "^2.0.0-0",
+    "meow": "^5.0.0",
+    "mkdirp": "^0.5.1",
+    "puppeteer": "^1.13.0"
+  }
+}

packages/mdx-deck/cli.js

@@ -29,17 +29,10 @@ const cli = meow(
 
   ${chalk.gray('Options')}
 
-      --webpack     Path to webpack config file
-
-    ${chalk.gray('Dev server options')}
-
       -h --host     Dev server host
       -p --port     Dev server port
-      --hot-port    Dev server hot reload port
       --no-open     Prevent from opening in default browser
-
-    ${chalk.gray('Build options')}
-
+      --webpack     Path to webpack config file
       -d --out-dir  Output directory for exporting
 
 `,

packages/themes/src/base.js

@@ -19,6 +19,9 @@ export default {
     '@media screen and (min-width:64em)': {
       fontSize: '48px',
     },
+    '@media print': {
+      fontSize: '40px',
+    },
     'li > p': {
       margin: 0,
     },
@@ -32,7 +35,4 @@ export default {
   ul: {
     textAlign: 'left',
   },
-
-  // from v1
-  // fontSizes: ['0.75em', '1em', '1.5em', '2em', '3em'],
 }