diff options
Diffstat (limited to 'debian/preinst')
| -rw-r--r-- | debian/preinst | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/debian/preinst b/debian/preinst new file mode 100644 index 0000000..71dab99 --- /dev/null +++ b/debian/preinst @@ -0,0 +1,47 @@ +#!/bin/sh + +set -e + +case "$1" in + upgrade|install) + # Try to gracefully handle upgrades from a pre-0.3.3 version + + if [ ! -z $2 ]; then + set +e + dpkg --compare-versions $2 \<= 0.3.2-1 + result=$? + set -e + if [ $result = 0 ]; then + cat <<EOF +Due to a bug in the way secret keys were encrypted in versions prior +to 0.3.3, this version of gnupg is not backwards compatible with $2 +which you have (had) installed on your system. + +There is an upgrade strategy (see /usr/doc/gnupg/NEWS.gz after this +version is installed), but it requires an old copy of the gpg and gpgm +EOF + echo -n "binaries; shall I make copies of them for you (Y/n)? " + read answer + if [ ! "$answer" = "n" ] && [ ! "$answer" = "N" ]; then + cp /usr/bin/gpg /usr/bin/gpg.old + cp /usr/bin/gpgm /usr/bin/gpgm.old + echo "Okay, done. The old versions are /usr/bin/gpg*.old" + else + echo "Okay, I haven't made backups." + fi; + cat <<EOF + +If at any stage you need a pre-0.3.3 gnupg, you can find source and +binaries for i386, m68k, alpha, powerpc and hurd-i386 at + + http://people.debian.org/~troup/gnupg/ + +Press return to continue +EOF + read foo + fi; + fi; + ;; + abort-upgrade) + ;; +esac |