From 5f3bad2f5b56a5891f0c52859794ac37ee48e3ee Mon Sep 17 00:00:00 2001
From: Philip <17368112+vHeemstra@users.noreply.github.com>
Date: Fri, 20 Jan 2023 15:18:52 +0100
Subject: [PATCH 1/2] feat: Support for local binaries

* Adds support for copying local binaries before trying the downloads.

> Works the same as `.src()`, except url is now a local path.
> Bin-wrapper now first tries the `localSrc`s (copying them in place when found) and falls back to downloading `src`s on fail.
---
 index.js     | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 package.json | 14 ++++++++++++-
 readme.md    | 15 +++++++++++++-
 3 files changed, 84 insertions(+), 3 deletions(-)

diff --git a/index.js b/index.js
index 1aba001..7255c17 100644
--- a/index.js
+++ b/index.js
@@ -12,6 +12,8 @@ const osFilterObj = importLazy('os-filter-obj');
 
 const statAsync = pify(fs.stat);
 const chmodAsync = pify(fs.chmod);
+const lstatAsync = pify(fs.lstat);
+const copyFileAsync = pify(fs.copyFile);
 
 /**
  * Initialize a new `BinWrapper`
@@ -30,6 +32,29 @@ module.exports = class BinWrapper {
 		}
 	}
 
+	/**
+	 * Get or set local files to use before download
+	 *
+	 * @param {String} src
+	 * @param {String} os
+	 * @param {String} arch
+	 * @api public
+	 */
+	localSrc(src, os, arch) {
+		if (arguments.length === 0) {
+			return this._localSrc;
+		}
+
+		this._localSrc = this._localSrc || [];
+		this._localSrc.push({
+			url: src,
+			os,
+			arch
+		});
+
+		return this;
+	}
+
 	/**
 	 * Get or set files to download
 	 *
@@ -151,13 +176,44 @@ module.exports = class BinWrapper {
 	findExisting() {
 		return statAsync(this.path()).catch(error => {
 			if (error && error.code === 'ENOENT') {
-				return this.download();
+				return this.copyLocal().catch(() => this.download());
 			}
 
 			return Promise.reject(error);
 		});
 	}
 
+	/**
+	 * Copying local files
+	 *
+	 * @api private
+	 */
+	copyLocal() {
+		const files = osFilterObj(this.localSrc() || []);
+		const urls = [];
+
+		if (files.length === 0) {
+			return Promise.reject(new Error('No binary found matching your system. It\'s probably not supported.'));
+		}
+
+		files.forEach(file => urls.push(file.url));
+
+		return Promise.all(urls.map(url => lstatAsync(url).then(stats => {
+			if (stats.isDirectory()) {
+				return Promise.reject(new Error('Local source path is a directory.'));
+			}
+			if (stats.isSymbolicLink()) {
+				return Promise.reject(new Error('Local source path is a symbolic link.'));
+			}
+			if (!stats.isFile()) {
+				return Promise.reject(new Error('Local source path is not a file.'));
+			}
+
+			return copyFileAsync(url, path.join(this.dest(), path.basename(url)))
+			.then(() => chmodAsync(path.join(this.dest(), fileName), 0o755));
+		})));
+	}
+
 	/**
 	 * Download files
 	 *
diff --git a/package.json b/package.json
index e49e305..2ab4602 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "bin-wrapper",
-	"version": "4.1.0",
+	"version": "4.2.0",
 	"description": "Binary wrapper that makes your programs seamlessly available as local dependencies",
 	"license": "MIT",
 	"repository": "kevva/bin-wrapper",
@@ -9,6 +9,18 @@
 		"email": "kevinmartensson@gmail.com",
 		"url": "https://github.com/kevva"
 	},
+	"contributors": [
+		{
+			"name": "Kevin Mårtensson",
+			"email": "kevinmartensson@gmail.com",
+			"url": "https://github.com/kevva"
+		},
+		{
+			"name": "Philip van Heemstra",
+			"email": "vanheemstra@gmail.com",
+			"url": "https://github.com/vheemstra"
+		}
+	],
 	"engines": {
 		"node": ">=6"
 	},
diff --git a/readme.md b/readme.md
index e57de2a..711a6f7 100644
--- a/readme.md
+++ b/readme.md
@@ -17,6 +17,9 @@ const BinWrapper = require('bin-wrapper');
 
 const base = 'https://github.com/imagemin/gifsicle-bin/raw/master/vendor';
 const bin = new BinWrapper()
+	.localSrc(`vendor/macos/gifsicle`, 'darwin')
+	.localSrc(`vendor/linux/x64/gifsicle`, 'linux', 'x64')
+	.localSrc(`vendor/win/x64/gifsicle.exe`, 'win32', 'x64')
 	.src(`${base}/macos/gifsicle`, 'darwin')
 	.src(`${base}/linux/x64/gifsicle`, 'linux', 'x64')
 	.src(`${base}/win/x64/gifsicle.exe`, 'win32', 'x64')
@@ -84,13 +87,23 @@ Type: `string`
 
 Tie the source to a specific arch.
 
+### .localSrc(filepath, [os], [arch])
+
+Same as `.src()`, but adds a local source to copy, before trying any downloads.
+
+#### filepath
+
+Type: `string`
+
+Accepts a filepath pointing to a local file.
+
 ### .dest(destination)
 
 #### destination
 
 Type: `string`
 
-Accepts a path which the files will be downloaded to.
+Accepts a path which the files will be copied/downloaded to.
 
 ### .use(binary)
 

From 3e02a1f62c0dfa1927ba3edbdfa6b739744c58ae Mon Sep 17 00:00:00 2001
From: Philip <17368112+vHeemstra@users.noreply.github.com>
Date: Fri, 20 Jan 2023 15:40:35 +0100
Subject: [PATCH 2/2] Update package.json

---
 package.json | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/package.json b/package.json
index 2ab4602..e02a784 100644
--- a/package.json
+++ b/package.json
@@ -9,18 +9,6 @@
 		"email": "kevinmartensson@gmail.com",
 		"url": "https://github.com/kevva"
 	},
-	"contributors": [
-		{
-			"name": "Kevin Mårtensson",
-			"email": "kevinmartensson@gmail.com",
-			"url": "https://github.com/kevva"
-		},
-		{
-			"name": "Philip van Heemstra",
-			"email": "vanheemstra@gmail.com",
-			"url": "https://github.com/vheemstra"
-		}
-	],
 	"engines": {
 		"node": ">=6"
 	},