2024-05-24 17:26:38 +02:00

97 lines
3.0 KiB
TypeScript

import { exec as execCallback } from "child_process";
import { readFile } from "fs/promises";
import { type FetchOptions } from "make-fetch-happen";
import { promisify } from "util";
function ensureArray<T>(arg0: T | T[]) {
return Array.isArray(arg0) ? arg0 : typeof arg0 === "undefined" ? [] : [arg0];
}
function ensureSingleOrNone<T>(arg0: T | T[]) {
if (!Array.isArray(arg0)) return arg0;
if (arg0.length === 0) return undefined;
if (arg0.length === 1) return arg0[0];
throw new Error(
"Illegal configuration, expected a single value but found multiple: " +
arg0.map(String).join(", ")
);
}
type NPMConfig = Record<string, string | string[]>;
/**
* Get npm configuration as map
*/
async function getNmpConfig(params: { npmWorkspaceRootDirPath: string }) {
const { npmWorkspaceRootDirPath } = params;
const exec = promisify(execCallback);
const stdout = await exec("npm config get", {
encoding: "utf8",
cwd: npmWorkspaceRootDirPath
}).then(({ stdout }) => stdout);
const npmConfigReducer = (cfg: NPMConfig, [key, value]: [string, string]) =>
key in cfg
? { ...cfg, [key]: [...ensureArray(cfg[key]), value] }
: { ...cfg, [key]: value };
return stdout
.split("\n")
.filter(line => !line.startsWith(";"))
.map(line => line.trim())
.map(line => line.split("=", 2) as [string, string])
.reduce(npmConfigReducer, {} as NPMConfig);
}
export type ProxyFetchOptions = Pick<
FetchOptions,
"proxy" | "noProxy" | "strictSSL" | "cert" | "ca"
>;
export async function getProxyFetchOptions(params: {
npmWorkspaceRootDirPath: string;
}): Promise<ProxyFetchOptions> {
const { npmWorkspaceRootDirPath } = params;
const cfg = await getNmpConfig({ npmWorkspaceRootDirPath });
const proxy = ensureSingleOrNone(cfg["https-proxy"] ?? cfg["proxy"]);
const noProxy = cfg["noproxy"] ?? cfg["no-proxy"];
function maybeBoolean(arg0: string | undefined) {
return typeof arg0 === "undefined" ? undefined : Boolean(arg0);
}
const strictSSL = maybeBoolean(ensureSingleOrNone(cfg["strict-ssl"]));
const cert = cfg["cert"];
const ca = ensureArray(cfg["ca"] ?? cfg["ca[]"]);
const cafile = ensureSingleOrNone(cfg["cafile"]);
if (typeof cafile !== "undefined" && cafile !== "null") {
ca.push(
...(await (async () => {
function chunks<T>(arr: T[], size: number = 2) {
return arr
.map((_, i) => i % size == 0 && arr.slice(i, i + size))
.filter(Boolean) as T[][];
}
const cafileContent = await readFile(cafile, "utf-8");
return chunks(cafileContent.split(/(-----END CERTIFICATE-----)/), 2).map(
ca => ca.join("").replace(/^\n/, "").replace(/\n/g, "\\n")
);
})())
);
}
return {
proxy,
noProxy,
strictSSL,
cert,
ca: ca.length === 0 ? undefined : ca
};
}