1 files changed, 24 insertions, 0 deletions
diff --git a/src/modules/in_path.js b/src/modules/in_path.js
new file mode 100644
index 0000000..49288c1
--- /dev/null
+++ b/src/modules/in_path.js
@@ -0,0 +1,24 @@
+const fs = require("fs");
+const join = require("path").join;
+
+// checks whether `executable_to_check` is in `$PATH`
+module.exports = (executable_to_check) => {
+	// get folders in `$PATH`
+	let path_dirs = process.env["PATH"].split(":");
+
+	// run through folders
+	for (let i = 0; i < path_dirs.length; i++) {
+		// path to executable this iteration
+		let executable = join(path_dirs[i], executable_to_check);
+
+		// if `executable` exists and is a file, then we found it
+		if (fs.existsSync(executable)
+			&& fs.statSync(executable).isFile()) {
+
+			return true;
+		}
+	}
+
+	// we didn't find `executable_to_check`
+	return false;
+}