fix(watch): forward --wrap-process to watchexec

[JamBalaya56562]

Problem

mise watch --restart --wrap-process none <task> hangs when the task launches a TUI, while the equivalent direct watchexec --restart --wrap-process none mise run <task> works fine. Reported in #10212.

Root cause

mise watch accepts --wrap-process (it mirrors watchexec''s options for help/completion), but Watch::run() never forwards the flag when building the watchexec command line — a repo-wide search finds wrap_process only in the clap definition. So mise watch --wrap-process none foo actually runs:

watchexec --restart -- mise run foo

and watchexec falls back to its default --wrap-process group. In group mode the TUI ends up in a non-foreground process group and blocks on terminal I/O, hence the hang.

Fix

• Forward --wrap-process in Watch::run() when it differs from watchexec''s default (group), right next to the existing --on-busy-update forwarding.
• Add PartialEq and a kebab-case strum::Display to WrapMode (mirroring OnBusyUpdate) so it serializes to watchexec''s accepted values: group / session / none.

Testing

• Unit test pinning WrapMode''s serialized values (group/session/none) — these are forwarded verbatim to watchexec.
• Manual: mise watch --restart --wrap-process none <task> under MISE_DEBUG now shows --wrap-process none in the spawned watchexec command, and the TUI no longer hangs. (The argv construction lives in the long-running Watch::run(), which isn''t covered by the existing e2e suite.)
• cargo fmt --all -- --check passes.

Note: several other watchexec flags are similarly parsed-but-not-forwarded (e.g. -i/--ignore, --workdir); this PR is scoped to --wrap-process (the reported bug) and those can be a follow-up.

Addresses #10212

🤖 Generated with Claude Code

Summary by CodeRabbit

• Bug Fixes

  • mise watch now correctly forwards the --wrap-process option to the process watcher instead of silently dropping it, ensuring process wrapping behavior is applied as specified.

• Tests

  • Added regression tests to verify process wrapping configuration is handled correctly.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

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Run ID: c7abfeeb-072e-4794-98b7-dd0653607dde

📥 Commits

Reviewing files that changed from the base of the PR and between bcb5aa0 and 8a90d21.

📒 Files selected for processing (1)

• src/cli/watch.rs

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📝 Walkthrough

Walkthrough

The PR updates mise watch to forward the --wrap-process option to watchexec when the configuration value is not the default. The OnBusyUpdate enum gains automatic kebab-case string serialization via strum::Display, and tests validate that WrapMode values serialize to strings matching watchexec accepted forms.

Changes

Watch wrap-process flag forwarding

Layer / File(s)	Summary
OnBusyUpdate enum serialization contract src/cli/watch.rs	The OnBusyUpdate enum derives strum::Display with #[strum(serialize_all = "kebab-case")] and PartialEq, enabling automatic lowercase kebab-cased string conversion for CLI arguments.
Watch command wrap-process flag forwarding src/cli/watch.rs	The Watch::run implementation appends --wrap-process <value> to watchexec arguments when wrap_process differs from the default WrapMode::Group.
WrapMode serialization validation src/cli/watch.rs	Test imports include WrapMode, and a new unit test validates WrapMode::{Group,Session,None} serialize to lowercase strings (group, session, none) matching watchexec --wrap-process accepted values.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Poem

🐰 A tiny hop to forward the flag,
No wrap-mode shall silently lag—
Kebab-case spins with strum's bright grace,
watchexec gets its rightful place!

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely summarizes the main change: forwarding the --wrap-process flag to watchexec in the watch command.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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[greptile-apps]

Greptile Summary

This PR fixes a bug where mise watch --wrap-process <mode> silently dropped the flag when building the watchexec command line, leaving watchexec to use its default group mode and causing TUI tasks to hang on terminal I/O.

• Adds PartialEq and #[strum(serialize_all = "kebab-case")] strum::Display to WrapMode, mirroring the identical treatment already applied to OnBusyUpdate, so the enum renders to the exact strings watchexec expects (group / session / none).
• Forwards --wrap-process in Watch::run() when the value differs from watchexec's default (Group), right alongside the existing --on-busy-update forwarding; a unit test pins all three serialized values to guard against future renames.

Confidence Score: 5/5

Safe to merge — single-file change that closes a clear gap between the parsed CLI flag and the subprocess invocation.

The fix is minimal and well-scoped: it adds two derives to an enum, inserts one conditional push into an existing args-building block, and adds a unit test that pins the exact strings forwarded to watchexec. The pattern is identical to the already-working OnBusyUpdate forwarding, the default-comparison logic is correct, and strum's kebab-case serialization produces the values watchexec expects. No regressions are plausible.

No files require special attention.

Important Files Changed

Filename	Overview
src/cli/watch.rs	Adds PartialEq + strum::Display to WrapMode and forwards --wrap-process to watchexec when non-default; adds a unit test pinning the serialized values.

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