fix(zsh): prevent trailing space after profile prefix in completions

[creativeprojects]

No description provided.

[Copilot]

Pull request overview

This pull request adjusts the zsh completion script to avoid inserting a trailing space after completing a profile prefix (e.g. default.), aligning zsh behavior with the existing bash completion behavior and enabling users to continue typing subcommands immediately after the dot.

Changes:

• Update _resticprofile_add to treat values ending in . as “profile prefixes” and add them via compadd -S '' to prevent zsh from appending a space.
• Refactor the zsh completion shell test harness to optionally preserve whitespace so it can assert the absence of a trailing space after profile. completions.
• Add a new zsh test case that validates no trailing space is inserted after a profile. prefix.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
contrib/completion/zsh-completion.zsh	Splits profile-prefix completions (ending in .) into a separate compadd call using -S '' to prevent trailing space insertion.
completion_shell_test.go	Adds a raw zsh buffer capture helper and a new test to verify profile-prefix completions do not add a trailing space.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.96%. Comparing base (f63a876) to head (f55cf96).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #658      +/-   ##
==========================================
- Coverage   81.38%   80.96%   -0.42%     
==========================================
  Files         149      162      +13     
  Lines       11340    12122     +782     
==========================================
+ Hits         9229     9814     +585     
- Misses       1639     1810     +171     
- Partials      472      498      +26     

Flag	Coverage Δ
unittests	79.24% <ø> (-0.31%)	⬇️

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