Timezone updater broken

[richardlau]

I ran https://github.com/nodejs/node/actions/workflows/timezone-update.yml to pick up TZDB 2026a from unicode-org/icu-data#50, but this has failed:

https://github.com/nodejs/node/actions/runs/22692650780/job/65791744101

/bin/sh: 1: icupkg: not found
node:internal/errors:985
  const err = new Error(message);
              ^

Error: Command failed: icupkg -a zoneinfo64.res icudt*.dat
/bin/sh: 1: icupkg: not found

    at genericNodeError (node:internal/errors:985:15)
    at wrappedFn (node:internal/errors:539:14)
    at checkExecSyncError (node:child_process:925:11)
    at execSync (node:child_process:997:15)
    at file:///home/runner/work/node/node/tools/update-timezone.mjs:22:3
    at Array.forEach (<anonymous>)
    at file:///home/runner/work/node/node/tools/update-timezone.mjs:20:11
    at ModuleJob.run (node:internal/modules/esm/module_job:413:25)
    at async onImport.tracePromise.__proto__ (node:internal/modules/esm/loader:660:26)
    at async asyncRunEntryPointWithESMLoader (node:internal/modules/run_main:101:5) {
  status: 127,
  signal: null,

Possibly this is another workflow that doesn't work (without tweaks) on the ubuntu-slim runners.

[MikeMcC399]

@richardlau

Possibly this is another workflow that doesn't work (without tweaks) on the ubuntu-slim runners.

I ran a modified version of the workflow in my fork and can reproduce the failure you're seeing. Changing ubuntu-slim to ubuntu-latest no longer failed, I couldn't test the whole workflow in the fork though, but it seems you were on the right track with your thoughts!

[richardlau]

Thanks for investigating. Sounds good enough to me -- opened #62140.