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export-pkgbuild-keys: fix export for packages without validpgpkeys 

In case the validpgpkeys array is empty or undefined, the empty printf
line only included a single line break which lead to mapfile -t
consuming it as an array with 1 element consisting of an empty string.

Fix this by only calling the printf in case the validpgpkeys array is
not empty. Without any output, the mapfile -t will simply produce an
empty array.

Signed-off-by: Levente Polyak <anthraxx@archlinux.org>
This commit is contained in:
Levente Polyak 2022-06-22 00:51:22 +02:00
parent 49d889cb8d
commit f386c13142
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1 changed files with 3 additions and 1 deletions
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export-pkgbuild-keys.in
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@ -37,7 +37,9 @@ fi
mapfile -t validpgpkeys < <(
# shellcheck source=PKGBUILD.proto
. ./PKGBUILD
printf "%s\n" "${validpgpkeys[@]}"
if (( ${#validpgpkeys[@]} )); then
printf "%s\n" "${validpgpkeys[@]}"
fi
)
msg "Exporting ${#validpgpkeys[@]} PGP keys..."