fontconfig for Lambda Layers, closes #181

.gitignore

@@ -1,3 +1,4 @@
+.fonts
 .idea
 *.log
 *.pem

.npmignore

@@ -1,3 +1,5 @@
 _
-.idea/
+.fonts
+.idea
 *.zip
+Dockerfile

README.md

@@ -24,7 +24,7 @@ If you wish to install an older version of Chromium, take a look at [Versioning]
 
 ## Usage
 
-This package works with the `nodejs8.10`, `nodejs10.x` and `nodejs12.x` AWS Lambda runtimes out of the box.
+This package works with all the currently supported AWS Lambda Node.js runtimes out of the box.
 
 ```javascript
 const chromium = require('chrome-aws-lambda');
@@ -96,7 +96,29 @@ It's recommended that you use a CDN, like [raw.githack.com](https://raw.githack.
 
 ---
 
-As of version `3.0.4`, the `font()` method will also work with local file paths and HTTP URLs.
+As of version `3.0.4`, the `font()` method will also work with local **absolute** file paths and HTTP URLs:
+
+```javascript
+await chromium.font('/absolute/path/to/font.ttf');
+```
+
+---
+
+Since version `6.0.0`, fonts provisioned by AWS Lambda Layers are also supported.
+
+To make use of them, simply create a directory named `.fonts` and place any font faces you want there:
+
+```
+.fonts
+├── NotoColorEmoji.ttf
+└── Roboto.ttf
+```
+
+Afterwards, you just need to ZIP the directory and upload it as a AWS Lambda Layer:
+
+```shell
+zip -9 --filesync --move --recurse-paths .fonts.zip .fonts/
+```
 
 ## Overloading
 
@@ -197,6 +219,7 @@ This package is versioned based on the underlying `puppeteer` minor version:
 
 | `puppeteer` Version | `chrome-aws-lambda` Version       | Chromium Revision                                    |
 | ------------------- | --------------------------------- | ---------------------------------------------------- |
+| `6.0.*`             | `npm i chrome-aws-lambda@~6.0.0`  | [`843427`](https://crrev.com/843427) (`89.0.4389.0`) |
 | `5.5.*`             | `npm i chrome-aws-lambda@~5.5.0`  | [`818858`](https://crrev.com/818858) (`88.0.4298.0`) |
 | `5.4.*`             | `npm i chrome-aws-lambda@~5.4.0`  | [`809590`](https://crrev.com/809590) (`87.0.4272.0`) |
 | `5.3.*`             | `npm i chrome-aws-lambda@~5.3.1`  | [`800071`](https://crrev.com/800071) (`86.0.4240.0`) |
@@ -255,14 +278,14 @@ The above will create a `chrome-aws-lambda.zip` file, which can be uploaded to y
 
 Since version `1.11.2`, it's also possible to use this package on Google/Firebase Cloud Functions.
 
-The only additional requirement is that `iltorb` must also be added as a dependency:
+According to our benchmarks, it's 40% to 50% faster than using the off-the-shelf `puppeteer` bundle.
+
+> If running on Node 10.15 or lower, `iltorb` must also be added as a dependency:
 
 ```shell
 npm install iltorb --save-prod
 ```
 
-According to our benchmarks, it's 40% to 50% faster than using the off-the-shelf `puppeteer` bundle.
-
 ## Compression
 
 The Chromium binary is compressed using the Brotli algorithm.

source/index.js

@@ -1,4 +1,4 @@
-const { createWriteStream, existsSync, mkdirSync, readdirSync, symlink, unlinkSync } = require('fs');
+const { access, createWriteStream, existsSync, mkdirSync, readdirSync, symlink, unlinkSync } = require('fs');
 const { inflate } = require('lambdafs');
 const { join } = require('path');
 const { URL } = require('url');
@@ -42,12 +42,18 @@ class Chromium {
       const output = `${process.env.HOME}/.fonts/${url.pathname.split('/').pop()}`;
 
       if (existsSync(output) === true) {
-        return resolve(output);
+        return resolve(output.split('/').pop());
       }
 
       if (url.protocol === 'file:') {
-        symlink(url.pathname, output, (error) => {
-          return error != null ? reject(error) : resolve(url.pathname.split('/').pop());
+        access(url.pathname, (error) => {
+          if (error != null) {
+            return reject(error);
+          }
+
+          symlink(url.pathname, output, (error) => {
+            return error != null ? reject(error) : resolve(url.pathname.split('/').pop());
+          });
         });
       } else {
         let handler = url.protocol === 'http:' ? require('http').get : require('https').get;