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#!/bin/sh
# $Id$
# Public domain.  Originally written 2016, Norbert Preining.
# Sign a file for release in TeX Live. Used in tl-update-images, etc.
# See tlpkg/gpg/tl-key-extension.txt for some info.

if test $# -ne 1; then
  echo "$0: Exactly one argument must be given, the file to sign." >&2
  exit 1
fi

# remove previous signature
rm -f "$1.asc"

prg=gpg
gpgopts="--batch --homedir /home/texlive/.gnupg  \
  --passphrase-file /home/texlive/.gnupg/passphrase \
  --local-user 0x06BAB6BC "
gpgmainopts="--armor --detach-sign"

# use the environment variables if available
if test -n "$TL_GNUPG" ; then
  prg=$TL_GNUPG
fi
if test -n "$TL_GNUPGOPTS" ; then
  gpgopts=$TL_GNUPGOPTS
fi
if test -n "$TL_GNUPGMAINOPTS" ; then
  gpgmainopts=$TL_GNUPGMAINOPTS
fi

# sign
"$prg" $gpgmainopts $gpgopts "$1"