added: src/modules/json.js

This module makes it easier to read JSON files, simply returning false
on errors, and attempting to repair the JSON automatically.

1 files changed, 35 insertions, 0 deletions

diff --git a/src/modules/json.js b/src/modules/json.js
new file mode 100644
index 0000000..5c099b1
--- /dev/null
+++ b/src/modules/json.js
@@ -0,0 +1,35 @@
+const fs = require("fs");
+const repair = require("jsonrepair");
+
+function read(file) {
+	let json = false;
+
+	// make sure the file actually exists
+	if (! fs.existsSync(file)) {
+		return false;
+	}
+
+	// make sure we're actually reading a file
+	if (! fs.statSync(file).isFile()) {
+		return false;
+	}
+
+	// read the file
+	let file_content = fs.readFileSync(file, "utf8");
+
+	// attempt to parse it
+	try {
+		json = JSON.parse(file_content);
+	}catch(err) {
+		// attempt to repair then parse
+		try {
+			json = JSON.parse(repair(file_content));
+		}catch(repair_err) {
+			return false;
+		}
+	}
+
+	return json;
+}
+
+module.exports = read;