max / alloy

Read the phrase off a rendered pane, borders and all

Author: Max Johnson <me@maxj.phd> · 2026-09-03 18:46 UTC

Signed with PGP, not checked

Commit: fdfccf32618678ac60ba55d51296273bae88cbde

Parent: 809bde7

1 file changed, +13 insertions, -2 deletions

M build/vmtest/install_preseeded.py +13 -2

			@@ -57,7 +57,17 @@
57	57		# their own indented line, in the action color, between the prose above and the
58	58		# field below. Anchored on the shape rather than on a line number, because the
59	59		# prose around it is the part likely to be reworded.
60		-	PHRASE = re.compile(r"^\s{2,}([a-z]+(?: [a-z]+){7})\s*$", re.M)
	60	+	#
	61	+	# The bounds are `[^A-Za-z]` rather than `\s` because this is read off a
	62	+	# rendered TUI and every line carries the pane's own border characters. A
	63	+	# whitespace-anchored pattern finds nothing here, which is a wrong answer that
	64	+	# looks like a missing phrase.
	65	+	PHRASE = re.compile(r"^[^A-Za-z]([a-z]+(?: [a-z]+){7})[^A-Za-z]$", re.M)
	66	+
	67	+	# Where the phrase is, said in the prose above it. Searching after this rather
	68	+	# than over the whole screen keeps the pattern from matching an unlucky line of
	69	+	# lowercase prose somewhere else on the page.
	70	+	PHRASE_AFTER = "is not stored anywhere"
61	71
62	72
63	73		def finish_encrypted(s, timeout):
			@@ -76,7 +86,8 @@
76	86		screen = s.screen.text()
77	87		check("Installation finished" in screen,
78	88		"the recovery screen says the install did not finish", s)
79		-	hit = PHRASE.search(screen)
	89	+	tail = screen.split(PHRASE_AFTER, 1)[-1]
	90	+	hit = PHRASE.search(tail)
80	91		check(hit is not None, "no eight-word recovery phrase on the screen that asks for one", s)
81	92		s.send(hit.group(1))
82	93		s.send(ENTER)