feat(tui): add option to copy space-joined argv

[kxxt]

This PR adds traditional execsnoop-style output as an option to the copy dialog.

Summary by CodeRabbit

• New Features

  • Added a copy option that joins a command’s arguments into a single space-separated line.
  • Added a configurable keyboard shortcut for this copy option, using w by default.
  • The new option is available in the copy selection menu.

• Bug Fixes

  • Displays a clear message when command arguments cannot be read.

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Project	Deployment	Actions	Updated (UTC)
tracexec	Ready	Preview, Comment	Jul 15, 2026 3:29pm

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

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Review profile: CHILL

Plan: Pro

Run ID: db70731a-a3f7-4a6a-9a62-cd1e59982ee6

📥 Commits

Reviewing files that changed from the base of the PR and between 1b0cefc and 5c31942.

📒 Files selected for processing (5)

• config.toml
• crates/tracexec-core/src/cli/keys.rs
• crates/tracexec-core/src/copy.rs
• crates/tracexec-tui/src/copy_popup.rs
• crates/tracexec-tui/src/event.rs

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Walkthrough

Adds a configurable ArgvJoined TUI copy target that joins event argv values with spaces, displays it in the copy popup, and supports default and overridden key bindings.

Changes

Joined argv copy target

Layer / File(s)	Summary
Joined argv formatting crates/tracexec-core/src/copy.rs, crates/tracexec-tui/src/event.rs	Adds CopyTarget::ArgvJoined, joins argv values with spaces, and returns a failure string when argv cannot be read; tests cover both results.
Key binding configuration crates/tracexec-core/src/cli/keys.rs, config.toml	Adds optional and resolved key-binding fields, defaults the target to w, supports configuration overrides, and tests TOML parsing.
TUI copy selection wiring crates/tracexec-tui/src/copy_popup.rs	Adds the joined argv target to the selectable copy targets and maps it to its configured key list.

Estimated code review effort: 2 (Simple) | ~10 minutes

Sequence Diagram(s)

sequenceDiagram
  participant User
  participant CopyPopup
  participant TuiKeyBindings
  participant text_for_copy
  participant Event
  User->>CopyPopup: press configured ArgvJoined key
  CopyPopup->>TuiKeyBindings: resolve copy_target_argv_joined
  CopyPopup->>text_for_copy: request ArgvJoined text
  text_for_copy->>Event: read argv
  Event-->>text_for_copy: argv values or read error
  text_for_copy-->>CopyPopup: joined argv or failure text
  CopyPopup-->>User: show copied target

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Possibly related PRs

• kxxt/tracexec#268: Extends related text_for_copy and argv-focused test coverage.
• kxxt/tracexec#287: Introduces the shared copy-target and text_for_copy machinery extended here.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 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 describes the main change: adding a TUI option to copy space-joined argv.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
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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• Create PR with unit tests
• Commit unit tests in branch sja

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[gemini-code-assist]

Code Review

This pull request introduces a new copy target option, ArgvJoined (bound to 'w' by default), which allows copying command-line arguments joined by whitespace. The changes span configuration files, keybindings, copy popup UI, and core copy logic, accompanied by corresponding unit tests. As there are no review comments, no further feedback is provided.

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[codecov]

Codecov Report

❌ Patch coverage is 95.45455% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 82.19%. Comparing base (074c56b) to head (5c31942).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/tracexec-tui/src/copy_popup.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #291      +/-   ##
==========================================
+ Coverage   82.16%   82.19%   +0.03%     
==========================================
  Files          84       84              
  Lines       20904    20926      +22     
==========================================
+ Hits        17175    17200      +25     
+ Misses       3729     3726       -3     

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