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code-server/src/node/plugin.ts
2020-08-05 13:00:37 -05:00

61 lines
1.9 KiB
TypeScript

import { field, logger } from "@coder/logger"
import * as fs from "fs"
import * as path from "path"
import * as util from "util"
import { Args } from "./cli"
import { HttpServer } from "./http"
/* eslint-disable @typescript-eslint/no-var-requires */
export type Activate = (httpServer: HttpServer, args: Args) => void
export interface Plugin {
activate: Activate
}
/**
* Intercept imports so we can inject code-server when the plugin tries to
* import it.
*/
const originalLoad = require("module")._load
// eslint-disable-next-line @typescript-eslint/no-explicit-any
require("module")._load = function (request: string, parent: object, isMain: boolean): any {
return originalLoad.apply(this, [request.replace(/^code-server/, path.resolve(__dirname, "../..")), parent, isMain])
}
const loadPlugin = async (pluginPath: string, httpServer: HttpServer, args: Args): Promise<void> => {
try {
const plugin: Plugin = require(pluginPath)
plugin.activate(httpServer, args)
logger.debug("Loaded plugin", field("name", path.basename(pluginPath)))
} catch (error) {
if (error.code !== "MODULE_NOT_FOUND") {
logger.warn(error.message)
} else {
logger.error(error.message)
}
}
}
const _loadPlugins = async (httpServer: HttpServer, args: Args): Promise<void> => {
const pluginPath = path.resolve(__dirname, "../../plugins")
const files = await util.promisify(fs.readdir)(pluginPath, {
withFileTypes: true,
})
await Promise.all(files.map((file) => loadPlugin(path.join(pluginPath, file.name), httpServer, args)))
}
export const loadPlugins = async (httpServer: HttpServer, args: Args): Promise<void> => {
try {
await _loadPlugins(httpServer, args)
} catch (error) {
if (error.code !== "ENOENT") {
logger.warn(error.message)
}
}
if (process.env.PLUGIN_DIR) {
await loadPlugin(process.env.PLUGIN_DIR, httpServer, args)
}
}