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fix(installer): clear-to-end-of-line per row so frames don't bleed

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draw_frame only cleared below the frame (\033[0J), so when a new screen's
lines were shorter than the previous screen's, the old tails (tool paths,
warnings) bled through on the right. Now erase-to-eol (\033[K) on every
line before the screen-clear.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Michael Sitarzewski
2026-06-05 01:10:54 -05:00
parent 6a7476b437
commit 08ed201861
1 changed files with 6 additions and 3 deletions
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scripts/lib.sh
+6 -3
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@@ -153,8 +153,11 @@ read_key() {
esac esac
} }
# draw_frame <buffer> — home cursor and paint a pre-composed frame, clearing # draw_frame <buffer> — home cursor and paint a pre-composed frame.
# trailing lines (flicker-free: one write, then clear-to-end-of-screen). # Flicker-free: erase-to-end-of-line (\033[K) on every line so a shorter new
# line never leaves the previous frame's tail behind, then erase-to-end-of-
# screen (\033[0J) to drop any leftover lines below the frame.
draw_frame() { draw_frame() {
printf '\033[H%s\033[0J' "$1" local buf="${1//$'\n'/$'\033[K'$'\n'}"
printf '\033[H%s\033[K\033[0J' "$buf"
} }