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/*
* Vencord, a modification for Discord's desktop app
* Copyright (c) 2023 Vendicated and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { Dirent, readdirSync, readFileSync, writeFileSync } from "fs";
import { access, readFile } from "fs/promises";
import { join } from "path";
import { BigIntLiteral, createSourceFile, Identifier, isArrayLiteralExpression, isCallExpression, isExportAssignment, isIdentifier, isObjectLiteralExpression, isPropertyAccessExpression, isPropertyAssignment, isStringLiteral, isVariableStatement, NamedDeclaration, NodeArray, ObjectLiteralExpression, ScriptTarget, StringLiteral, SyntaxKind } from "typescript";
interface Dev {
name: string;
id: string;
}
interface PluginData {
name: string;
description: string;
tags: string[];
authors: Dev[];
dependencies: string[];
hasPatches: boolean;
hasCommands: boolean;
required: boolean;
enabledByDefault: boolean;
target: "discordDesktop" | "vencordDesktop" | "web" | "dev";
}
const devs = {} as Record<string, Dev>;
function getName(node: NamedDeclaration) {
return node.name && isIdentifier(node.name) ? node.name.text : undefined;
}
function hasName(node: NamedDeclaration, name: string) {
return getName(node) === name;
}
function getObjectProp(node: ObjectLiteralExpression, name: string) {
const prop = node.properties.find(p => hasName(p, name));
if (prop && isPropertyAssignment(prop)) return prop.initializer;
return prop;
}
function parseDevs() {
const file = createSourceFile("constants.ts", readFileSync("src/utils/constants.ts", "utf8"), ScriptTarget.Latest);
for (const child of file.getChildAt(0).getChildren()) {
if (!isVariableStatement(child)) continue;
const devsDeclaration = child.declarationList.declarations.find(d => hasName(d, "Devs"));
if (!devsDeclaration?.initializer || !isCallExpression(devsDeclaration.initializer)) continue;
const value = devsDeclaration.initializer.arguments[0];
if (!isObjectLiteralExpression(value)) return;
for (const prop of value.properties) {
const name = (prop.name as Identifier).text;
const value = isPropertyAssignment(prop) ? prop.initializer : prop;
if (!isObjectLiteralExpression(value)) throw new Error(`Failed to parse devs: ${name} is not an object literal`);
devs[name] = {
name: (getObjectProp(value, "name") as StringLiteral).text,
id: (getObjectProp(value, "id") as BigIntLiteral).text.slice(0, -1)
};
}
return;
}
throw new Error("Could not find Devs constant");
}
async function parseFile(fileName: string) {
const file = createSourceFile(fileName, await readFile(fileName, "utf8"), ScriptTarget.Latest);
const fail = (reason: string) => {
return new Error(`Invalid plugin ${fileName}, because ${reason}`);
};
for (const node of file.getChildAt(0).getChildren()) {
if (!isExportAssignment(node) || !isCallExpression(node.expression)) continue;
const call = node.expression;
if (!isIdentifier(call.expression) || call.expression.text !== "definePlugin") continue;
const pluginObj = node.expression.arguments[0];
if (!isObjectLiteralExpression(pluginObj)) throw fail("no object literal passed to definePlugin");
const data = {
hasPatches: false,
hasCommands: false,
enabledByDefault: false,
required: false,
tags: [] as string[]
} as PluginData;
for (const prop of pluginObj.properties) {
const key = getName(prop);
const value = isPropertyAssignment(prop) ? prop.initializer : prop;
switch (key) {
case "name":
case "description":
if (!isStringLiteral(value)) throw fail(`${key} is not a string literal`);
data[key] = value.text;
break;
case "patches":
data.hasPatches = true;
break;
case "commands":
data.hasCommands = true;
break;
case "authors":
if (!isArrayLiteralExpression(value)) throw fail("authors is not an array literal");
data.authors = value.elements.map(e => {
if (!isPropertyAccessExpression(e)) throw fail("authors array contains non-property access expressions");
return devs[getName(e)!];
});
break;
case "tags":
if (!isArrayLiteralExpression(value)) throw fail("tags is not an array literal");
data.tags = value.elements.map(e => {
if (!isStringLiteral(e)) throw fail("tags array contains non-string literals");
return e.text;
});
break;
case "dependencies":
if (!isArrayLiteralExpression(value)) throw fail("dependencies is not an array literal");
const { elements } = value;
if (elements.some(e => !isStringLiteral(e))) throw fail("dependencies array contains non-string elements");
data.dependencies = (elements as NodeArray<StringLiteral>).map(e => e.text);
break;
case "required":
case "enabledByDefault":
data[key] = value.kind === SyntaxKind.TrueKeyword;
if (!data[key] && value.kind !== SyntaxKind.FalseKeyword) throw fail(`${key} is not a boolean literal`);
break;
}
}
if (!data.name || !data.description || !data.authors) throw fail("name, description or authors are missing");
const fileBits = fileName.split(".");
if (fileBits.length > 2 && ["ts", "tsx"].includes(fileBits.at(-1)!)) {
const mod = fileBits.at(-2)!;
if (!["web", "discordDesktop", "vencordDesktop", "dev"].includes(mod)) throw fail(`invalid target ${fileBits.at(-2)}`);
data.target = mod as any;
}
return data;
}
throw fail("no default export called 'definePlugin' found");
}
async function getEntryPoint(dirent: Dirent) {
const base = join("./src/plugins", dirent.name);
if (!dirent.isDirectory()) return base;
for (const name of ["index.ts", "index.tsx"]) {
const full = join(base, name);
try {
await access(full);
return full;
} catch { }
}
throw new Error(`${dirent.name}: Couldn't find entry point`);
}
(async () => {
parseDevs();
const plugins = readdirSync("./src/plugins", { withFileTypes: true }).filter(d => d.name !== "index.ts");
const promises = plugins.map(async dirent => parseFile(await getEntryPoint(dirent)));
const data = JSON.stringify(await Promise.all(promises));
if (process.argv.length > 2) {
writeFileSync(process.argv[2], data);
} else {
console.log(data);
}
})();
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