From b139231241bc2690f3d28d6f1e7b57105ee072ca Mon Sep 17 00:00:00 2001
From: Sven Slootweg <jamsoftgamedev@gmail.com>
Date: Sun, 17 Apr 2016 19:35:55 +0200
Subject: [PATCH] Initial commit

---
 .npmignore   |  1 +
 README.md    | 29 +++++++++++++++++++
 gulpfile.js  | 18 ++++++++++++
 index.js     |  3 ++
 package.json | 28 ++++++++++++++++++
 src/index.js | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 test.js      |  8 +++++
 7 files changed, 169 insertions(+)
 create mode 100644 .npmignore
 create mode 100644 README.md
 create mode 100644 gulpfile.js
 create mode 100644 index.js
 create mode 100644 package.json
 create mode 100644 src/index.js
 create mode 100644 test.js

diff --git a/.npmignore b/.npmignore
new file mode 100644
index 0000000..096746c
--- /dev/null
+++ b/.npmignore
@@ -0,0 +1 @@
+/node_modules/
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..3713e10
--- /dev/null
+++ b/README.md
@@ -0,0 +1,29 @@
+# get-project-root
+
+TODO
+
+## License
+
+[WTFPL](http://www.wtfpl.net/txt/copying/) or [CC0](https://creativecommons.org/publicdomain/zero/1.0/), whichever you prefer. A donation and/or attribution are appreciated, but not required.
+
+## Donate
+
+My income consists largely of donations for my projects. If this module is useful to you, consider [making a donation](http://cryto.net/~joepie91/donate.html)!
+
+You can donate using Bitcoin, PayPal, Flattr, cash-in-mail, SEPA transfers, and pretty much anything else.
+
+## Contributing
+
+Pull requests welcome. Please make sure your modifications are in line with the overall code style, and ensure that you're editing the files in `src/`, not those in `lib/`.
+
+Build tool of choice is `gulp`; simply run `gulp` while developing, and it will watch for changes.
+
+Be aware that by making a pull request, you agree to release your modifications under the licenses stated above.
+
+## Usage
+
+TODO
+
+## API
+
+TODO
\ No newline at end of file
diff --git a/gulpfile.js b/gulpfile.js
new file mode 100644
index 0000000..1769501
--- /dev/null
+++ b/gulpfile.js
@@ -0,0 +1,18 @@
+var gulp = require("gulp");
+var presetES2015 = require("@joepie91/gulp-preset-es2015");
+
+var source = ["src/**/*.js"]
+
+gulp.task('babel', function() {
+	return gulp.src(source)
+		.pipe(presetES2015({
+			basePath: __dirname
+		}))
+		.pipe(gulp.dest("lib/"));
+});
+
+gulp.task("watch", function () {
+	gulp.watch(source, ["babel"]);
+});
+
+gulp.task("default", ["babel", "watch"]);
\ No newline at end of file
diff --git a/index.js b/index.js
new file mode 100644
index 0000000..507257b
--- /dev/null
+++ b/index.js
@@ -0,0 +1,3 @@
+'use strict';
+
+module.exports = require("./lib");
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..2ba5ee0
--- /dev/null
+++ b/package.json
@@ -0,0 +1,28 @@
+{
+  "name": "get-project-root",
+  "version": "0.0.1",
+  "description": "Locates the 'root directory' of the current project",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "http://git.cryto.net/joepie91/node-get-project-root.git"
+  },
+  "keywords": [
+    "root",
+    "package.json",
+    "path"
+  ],
+  "author": "Sven Slootweg",
+  "license": "WTFPL",
+  "dependencies": {
+    "default-value": "0.0.2"
+  },
+  "devDependencies": {
+    "@joepie91/gulp-preset-es2015": "^1.0.1",
+    "babel-preset-es2015": "^6.6.0",
+    "gulp": "^3.9.1"
+  }
+}
diff --git a/src/index.js b/src/index.js
new file mode 100644
index 0000000..a4fc1d5
--- /dev/null
+++ b/src/index.js
@@ -0,0 +1,82 @@
+'use strict';
+
+const fs = require("fs");
+const path = require("path");
+const defaultValue = require("default-value");
+
+let defaultCheckers = {
+	"package.json": function(directory) {
+		let parentPackageFile = path.join(directory, `..${path.sep}..${path.sep}package.json`);
+
+		try {
+			fs.accessSync(parentPackageFile);
+			return false;
+		} catch (err) {
+			return true;
+		}
+	},
+	"vcs": function(directory) {
+		let files = fs.readdirSync(directory);
+
+		return [".git", ".hg"].some((target) => {
+			return (files.indexOf(target) !== -1);
+		});
+	}
+}
+
+function reachedRoot(candidatePath) {
+	/* Returns true if we hit the root of the filesystem; like / or C:\ */
+	return /^(?:\/|a-z:\\)$/i.test(candidatePath);
+}
+
+module.exports = function(options) {
+	let currentPath = defaultValue(options.basePath, __dirname);
+	let checker = defaultValue(options.checker, "package.json");
+
+	if (typeof checker === "string") {
+		if (defaultCheckers[checker] != null) {
+			checker = defaultCheckers[checker];
+		} else {
+			throw new Error("No such checker exists.");
+		}
+	}
+
+	/* Locate the first thing that has a package.json, in case we're in a
+	 * subdirectory within a module. Only after we've found the nearest
+	 * package.json, we will start using the checker.
+	 */
+
+	let baseFound = false;
+
+	while (baseFound === false) {
+		baseFound = (fs.readdirSync(currentPath).indexOf("package.json") !== -1);
+
+		if (reachedRoot(currentPath)) {
+			throw new Error("Reached filesystem root without encountering a module");
+		}
+
+		if (baseFound === false) {
+			currentPath = path.join(currentPath, "..");
+		}
+	}
+
+	let rootFound = false;
+
+	while (rootFound === false) {
+		rootFound = checker(currentPath);
+
+		if (rootFound !== true && rootFound !== false) {
+			throw new Error("Checker must always return either true or false");
+		}
+
+		if (reachedRoot(currentPath)) {
+			throw new Error("Reached filesystem root without encountering the project root");
+		}
+
+		if (rootFound === false) {
+			currentPath = path.join(currentPath, `..${path.sep}..`);
+		}
+	}
+
+	return currentPath;
+}
\ No newline at end of file
diff --git a/test.js b/test.js
new file mode 100644
index 0000000..e5cb38e
--- /dev/null
+++ b/test.js
@@ -0,0 +1,8 @@
+'use strict';
+
+const getProjectRoot = require("./");
+
+console.log(getProjectRoot({
+	basePath: process.argv[2],
+	checker: "package.json"
+}));
\ No newline at end of file