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interface GHRelease {
tag_name: string;
}
const decode = (buffer: Uint8Array) => new TextDecoder("utf-8").decode(buffer);
const run = async (command: string, args: string[]) => {
const cmd = Deno.run(
{ cmd: [command, ...args], stdout: "piped", stderr: "piped" },
);
if (!(await cmd.status()).success) {
throw await cmd.stderrOutput().then((b) => decode(b));
}
return cmd.output().then((b) => decode(b).trimEnd());
};
// Exports
export const versionRegExp = /\d+\.\d+\.\d+/;
export const sha256RegExp = /[a-z0-9]{52}/;
export async function commit(
name: string,
oldVer: string,
newVer: string,
files: string[],
) {
await run("git", ["add", ...files]);
await run("git", ["commit", "-m", `${name}: ${oldVer} -> ${newVer}`]);
}
export const getExistingVersion = async (filePath: string) =>
read(filePath).then((s) =>
s.match(genValueRegExp("version", versionRegExp))?.shift() || ""
);
export const getLatestVersion = (owner: string, repo: string) =>
fetch(`https://api.github.com/repos/${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 nixPrefetch = (args: string[]) => run("nix-prefetch", args);
export const nixPrefetchURL = (args: string[]) => run("nix-prefetch-url", args);
export const read = Deno.readTextFile;
export const write = Deno.writeTextFile;
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