Fix dagger call hanging in mise tasks on interactive terminals #256

Merged

eblume merged 1 commit from fix-dagger-tty-hang into main

2026-02-23 14:15:59 -08:00

eblume commented

2026-02-23 14:15:09 -08:00

Owner

Summary

Add --progress=plain to all dagger call invocations in mise tasks to prevent SIGTTOU hangs

Root cause

Mise runs task scripts in a child process group that is not the terminal's foreground group. When dagger call detects a TTY (inherited from the interactive shell), it tries to render its TUI progress display, which requires terminal ioctls. Since the process is not in the foreground group, the kernel sends SIGTTOU, stopping the process indefinitely.

This only manifests when running from an interactive terminal (e.g. pre-commit run --all-files in fish/wezterm). CI and piped contexts are unaffected since there's no TTY.

Changes

mise-tasks/validate-workflows — add --progress=plain
mise-tasks/frigate-export-model — add --progress=plain
mise-tasks/provision-ringtail — add --progress=plain

Test plan

pre-commit run --all-files completes without hanging
Verify in interactive fish/wezterm terminal

🤖 Generated with Claude Code

## Summary - Add `--progress=plain` to all `dagger call` invocations in mise tasks to prevent SIGTTOU hangs ## Root cause Mise runs task scripts in a child process group that is not the terminal's foreground group. When `dagger call` detects a TTY (inherited from the interactive shell), it tries to render its TUI progress display, which requires terminal ioctls. Since the process is not in the foreground group, the kernel sends SIGTTOU, stopping the process indefinitely. This only manifests when running from an interactive terminal (e.g. `pre-commit run --all-files` in fish/wezterm). CI and piped contexts are unaffected since there's no TTY. ## Changes - `mise-tasks/validate-workflows` — add `--progress=plain` - `mise-tasks/frigate-export-model` — add `--progress=plain` - `mise-tasks/provision-ringtail` — add `--progress=plain` ## Test plan - [x] `pre-commit run --all-files` completes without hanging - [ ] Verify in interactive fish/wezterm terminal 🤖 Generated with [Claude Code](https://claude.com/claude-code)

eblume added 1 commit

2026-02-23 14:15:10 -08:00

Fix dagger call hanging in mise tasks on interactive terminals 332f8d9069

Mise runs task scripts in a child process group that is not the
terminal's foreground group. When dagger detects a TTY it tries to
render its TUI, triggering SIGTTOU which stops the process. Adding
--progress=plain to all dagger call sites avoids terminal ioctls.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>