scripts: fix empty-array unbound variable error on bash 3.x (macOS)#3
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On macOS, bash 3.2 treats "${ARGS[@]}" as an unbound variable when the
array is empty and set -u (nounset) is active. Replace both expansions
in setup-utm-ubuntu.sh with the ${ARGS[@]+"${ARGS[@]}"} idiom, which
expands only when the array is non-empty and is safe under set -u on all
bash versions.
Co-authored-by: Cursor <cursoragent@cursor.com>
bnshr
changed the title
edcdavid
approved these changes
May 28, 2026
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macOS ships bash 3.2, which treats "${ARGS[@]}" on an empty array as an unbound variable when set -u is active.