can1357
ddbf1ffecb
- Added a fallback to the pinned bunx package when generating Nix bun dependencies without an active Nix environment. - Updated generator resolution logic and corresponding tests.
48 lines
1.8 KiB
TypeScript
Executable File
48 lines
1.8 KiB
TypeScript
Executable File
#!/usr/bin/env bun
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import * as path from "node:path";
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import { $ } from "bun";
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import { $which } from "../packages/utils/src/which";
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const repoRoot = path.join(import.meta.dir, "..");
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/** Pinned npm package matching flake.lock's bun2nix revision (`0f2a1f…`). */
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export const BUN2NIX_NPM_SPEC = "bun2nix@2.1.2";
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type FindExecutable = (command: string) => string | null;
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/** The executable path and invocation mode for the pinned Bun dependency generator. */
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export type NixBunDepsGenerator =
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| { kind: "bun2nix"; executable: string }
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| { kind: "nix"; executable: string }
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| { kind: "bunx"; package: typeof BUN2NIX_NPM_SPEC };
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/** Resolve the generator needed by releases before they mutate repository state. */
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export function resolveNixBunDepsGenerator(findExecutable: FindExecutable = $which): NixBunDepsGenerator {
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const bun2nix = findExecutable("bun2nix");
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if (bun2nix) return { kind: "bun2nix", executable: bun2nix };
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const nix = findExecutable("nix");
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if (nix) return { kind: "nix", executable: nix };
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return { kind: "bunx", package: BUN2NIX_NPM_SPEC };
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}
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/** Regenerate the checked-in Bun dependency expression with the pinned bun2nix input. */
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export async function generateNixBunDeps(generator: NixBunDepsGenerator = resolveNixBunDepsGenerator()): Promise<void> {
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if (generator.kind === "bun2nix") {
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await $`${generator.executable} -l bun.lock -c ../ -o nix/bun.nix`.cwd(repoRoot);
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return;
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}
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if (generator.kind === "nix") {
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await $`${generator.executable} --extra-experimental-features ${"nix-command flakes"} --accept-flake-config develop --command bun2nix -l bun.lock -c ../ -o nix/bun.nix`.cwd(
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repoRoot,
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);
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return;
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}
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await $`bunx ${generator.package} -l bun.lock -c ../ -o nix/bun.nix`.cwd(repoRoot);
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}
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if (import.meta.main) await generateNixBunDeps();
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