/usr/bin/gpg-sign-all is in kup-client 0.3.2-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | #!/bin/sh
#
# Sign an arbitrary number of files using a transient GPG agent
#
unset GPG_AGENT_INFO
eval $(gpg-agent --daemon --quiet --no-use-standard-socket --keep-tty --keep-display --sh)
for f; do
fbare=$(echo "$f" | sed -e 's/\.[^./]*$//')
case "$f" in
*.gz)
gzip -cd -- "$f" | gpg --use-agent -a -b -o "$fbare".sign \
--set-filename "$(basename "$fbare")" -
;;
*.bz2)
bzip2 -cd -- "$f" | gpg --use-agent -a -b -o "$fbare".sign \
--set-filename "$(basename "$fbare")" -
;;
*.xz)
xz -cd -- "$f" | gpg --use-agent -a -b -o "$fbare".sign \
--set-filename "$(basename "$fbare")" -
;;
*)
gpg --use-agent -a -b -o "$f".sign \
--set-filename "$(basename "$f")" - < "$f"
;;
esac
done
# Kill the agent
kill $(gpg-connect-agent /subst /serverpid '/echo ${get serverpid}' /bye)
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