Changes for version 0.194 - 2026-10-05
- Fixed
- **`parallel()` did not pass an interrupt on to its steps when the caller ignored TERM.** An interrupt sent to `parallel()`'s process was passed to every running step as TERM, and the steps, like their commands, had inherited TERM ignored. So an INT or a HUP sent to that process alone, by `kill` or a batch scheduler, reached no step: each ran on to its end, and only then was the interrupt re-raised. A Ctrl-C at the terminal was not affected, because it reaches the steps directly. Each step is now passed the signal that `parallel()` received, which it cannot be ignoring. A step stopped by an INT or a QUIT that way now returns its record, or its error, saying its command was killed by that signal; it used to die of the TERM itself, and `parallel()` reported only that it "ended before it could return a record". `t/10.ignored.signals.t` tests this; against 0.193 each of its two cases took 30 s, the whole of the steps' sleep.
- Tests
- **The suite no longer fails when it is run with signals ignored,** as it is under a background job: `( cpanm SimpleFlow & )` in a script starts cpanm with SIGINT and SIGQUIT ignored, and every test inherits that. 0.193 could not be installed that way: `t/04.fixes.t` test 15 failed "the calling program was ended by the interrupt" (got 0, expected 2). The module was right to leave an ignored signal ignored, as `system()` does; four tests, in `t/01.t`, `t/04.fixes.t` and `t/06.pipeline.t`, relied on a signal's default action without setting it, and with TERM ignored those four failed too. Each now sets the default itself; this fix is to the tests alone.
- `t/10.ignored.signals.t` checks that a signal the caller ignores stays ignored by perl and by the command, under `task()` with and without `timeout` and under `parallel()`, and re-runs every other test file with HUP, INT, QUIT, TERM and TSTP inherited ignored. It fails against 0.193's tests, and roughly doubles the time the suite takes.
Documentation
easy, simple workflow manager (and logger); for keeping track of and debugging large and complex shell command workflows
Modules
easy, simple workflow manager (and logger); for keeping track of and debugging large and complex shell command workflows