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zeekayandHanzo Dev 0fd5c6b353 an off-switch that does nothing is worse than one that is not there
Six env flags, two conventions, and both failed silently against the other.
Five read `== "true"`, so BOOTNODE_ENABLED=1 left bootnode off and
CALENDAR_ENABLED=1 left the calendar off. One read `!= "1"`, so
BASE_ENABLE_ADMIN_UI=true served no admin. And ZAP_DISABLED read `!= "true"`, so
an operator who wrote ZAP_DISABLED=1 to stop the listener watched it come up
anyway. In every case the flag was accepted, ignored, and never mentioned again.

This tree already answers "read a boolean from a string" four times, with
strconv.ParseBool (tools/filesystem, tools/search, tools/router,
core/settings_query). The hand-rolled comparisons were the deviation, so
osutils.Bool is that answer given a name and a default, and all six sites read
it. Strictly more permissive: every spelling that worked before still works, and
the ones that silently did nothing now do what they say.

An unparseable value yields the default rather than its opposite — someone who
typed something meaningless has not asked for the other thing.

Coverage: plugins/zap 5.9% -> 23.5%, and DefaultConfig is pinned including the
case that started this (ZAP_DISABLED=1 must disable) and a garbage ZAP_PORT,
which must keep 9999 rather than quietly binding somewhere else.

Co-authored-by: Hanzo Dev <[email protected]>
2026-08-24 10:34:54 -07:00
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