LeonSGP43 7d36533aeb fix(pty): default TERM for resize probes ...

Preserve explicit caller overrides, but backfill a sensible default
TERM=xterm-256color when missing or blank in the spawn env. CI often
runs without TERM in the parent process, which makes terminal probes
like 'tput cols' fail before winsize reads.

Salvage of #15278's core code fix only — the test changes conflict
with subsequent test refactors on main that now exercise TIOCGWINSZ
directly instead of via 'tput'.

Co-authored-by: LeonSGP43 <154585401+LeonSGP43@users.noreply.github.com>

2026-05-04 02:38:54 -07:00

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