Script to add license preamble to each file. Also, does that. (#935)

* Add script to automatically add license to each file

* Add license preamble to each file.

* Fix existing preamble detection breaking due to line endings. Git :(

* Prevent license from being added to code with other licenses

3 files changed, 70 insertions, 0 deletions

diff --git a/scripts/util/getRouteDescriptions.js b/scripts/util/getRouteDescriptions.js
index 21c36ca7..274c0d14 100644
--- a/scripts/util/getRouteDescriptions.js
+++ b/scripts/util/getRouteDescriptions.js
@@ -1,3 +1,21 @@
+/*
+	Fosscord: A FOSS re-implementation and extension of the Discord.com backend.
+	Copyright (C) 2023 Fosscord and Fosscord Contributors
+	
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Affero General Public License as published
+	by the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+	
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Affero General Public License for more details.
+	
+	You should have received a copy of the GNU Affero General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
 const { traverseDirectory } = require("lambert-server");
 const path = require("path");
 const express = require("express");
diff --git a/scripts/util/licensePreamble.txt b/scripts/util/licensePreamble.txt
new file mode 100644
index 00000000..f6c70e00
--- /dev/null
+++ b/scripts/util/licensePreamble.txt
@@ -0,0 +1,15 @@
+Fosscord: A FOSS re-implementation and extension of the Discord.com backend.
+Copyright (C) 2023 Fosscord and Fosscord Contributors
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published
+by the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
\ No newline at end of file
diff --git a/scripts/util/walk.js b/scripts/util/walk.js
new file mode 100644
index 00000000..66e98447
--- /dev/null
+++ b/scripts/util/walk.js
@@ -0,0 +1,37 @@
+/*
+	Fosscord: A FOSS re-implementation and extension of the Discord.com backend.
+	Copyright (C) 2023 Fosscord and Fosscord Contributors
+	
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU Affero General Public License as published
+	by the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+	
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU Affero General Public License for more details.
+	
+	You should have received a copy of the GNU Affero General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+const fs = require("fs");
+
+/** dir: string. types: string[] ( file types ) */
+module.exports = function walk(dir, types = ["ts"]) {
+	var results = [];
+	var list = fs.readdirSync(dir);
+	list.forEach(function (file) {
+		file = dir + "/" + file;
+		var stat = fs.statSync(file);
+		if (stat && stat.isDirectory()) {
+			/* Recurse into a subdirectory */
+			results = results.concat(walk(file, types));
+		} else {
+			if (!types.find((x) => file.endsWith(x))) return;
+			results.push(file);
+		}
+	});
+	return results;
+};