Defame1297 49d21bcb4d fix(providers): guard the statusline's unguarded array expansion ...

`parts` is seeded empty and all seven appends are conditional, so
"${parts[@]}" at the join loop can expand an empty array. install.sh
deploys this file to every user machine.

Two things had to both hold for the bare form to be safe: this file
enabling no `set -u`, and the shell being bash 4.4+, which stopped
treating an empty-array expansion as unbound. On bash 3.2 -- macOS's
system bash, an explicit repo target -- adding `set -u` aborts here.
That is also why the hazard is unreproducible on a modern dev box and
why the enforcement is a static scan rather than a runtime test.

Adds the `providers` glob to test-vale-wrap.sh's bash-3.2 scan, which
excluded it precisely because of this defect. Floor is 1 rather than
"count minus slack": the glob holds one file, so any slack at all
means a floor of 0, which passes vacuously on a renamed directory.

Also adds case 27, the regression test for the stale `shellcheck
source=` directives fixed in the next commit (#97 item 2). It lives in
this file because that is where the exemption it guards lives.

Closes #96
Refs #97

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X7GvKuJfy2WrdBmUttV4DT

2026-08-14 08:03:17 +00:00

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