nixpkgs/pkgs/development/web/deno/update/common.ts
2021-03-12 19:34:26 +00:00

56 lines
1.8 KiB
TypeScript

interface GHRelease {
tag_name: string;
}
const decode = (buffer: Uint8Array) => new TextDecoder("utf-8").decode(buffer);
const decodeTrim = (b: Uint8Array) => decode(b).trimEnd();
export const run = async (command: string, args: string[]) => {
const cmd = Deno.run({
cmd: [command, ...args],
stdout: "piped",
stderr: "piped",
});
if (!(await cmd.status()).success) {
const error = await cmd.stderrOutput().then(decodeTrim);
// Known error we can ignore
if (error.includes("'allow-unsafe-native-code-during-evaluation'")) {
// Extract the target sha256 out of the error
const target = " got: sha256:";
const match = error
.split("\n")
.find((l) => l.includes(target))
?.split(target)[1];
if (typeof match !== "undefined") {
return match;
}
}
throw new Error(error);
}
return cmd.output().then(decodeTrim);
};
// Exports
export const versionRegExp = /\d+\.\d+\.\d+/;
export const sha256RegExp = /[a-z0-9]{52}|sha256-.{44}/;
export const getExistingVersion = async (filePath: string) =>
read(filePath).then(
(s) => s.match(genValueRegExp("version", versionRegExp))?.shift() || "",
);
export const getLatestVersion = (owner: string, repo: string) =>
fetch(`https://api.github.com/repos/${owner}/${repo}/releases`)
.then((res) => res.json())
.then((res: GHRelease[]) => res[0].tag_name);
// The (?<=) and (?=) allow replace to only change inside
// Match the regex passed in or empty
export const genValueRegExp = (key: string, regex: RegExp) =>
new RegExp(`(?<=${key} = ")(${regex.source}|)(?=")`);
export const logger = (name: string) =>
(...a: any) => console.log(`[${name}]`, ...a);
export const read = Deno.readTextFile;
export const write = Deno.writeTextFile;