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docs(build): filter checklink's Perl noise in checkref #4108

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docs(build): filter checklink's Perl noise in checkref #4108

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6 changes: 5 additions & 1 deletion docs/src/checkref
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,11 @@ for F in "$@"; do
# --follow-file-links is required: recent w3c-linkchecker refuses file://
# URIs by default, so without it checklink never inspects the local file
# and validates nothing.
linuxcnc-checklink --quiet --follow-file-links --exclude "(http|https|irc)://" "$F" 2>&1 | tee "$OUT"
#
# Drop checklink's own "uninitialized value ... checklink line N" Perl
# noise (not link results). checklink stays first, so PIPESTATUS[0] holds.
linuxcnc-checklink --quiet --follow-file-links --exclude "(http|https|irc)://" "$F" 2>&1 \
| grep -vE 'Use of uninitialized value .* at .*checklink line [0-9]+' | tee "$OUT"
STATUS=${PIPESTATUS[0]}
# Distinguish "checklink never inspected the file" from "checklink ran and
# found problems". It exits 64 when it reports broken links, so a nonzero
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