51 lines
1.9 KiB
Bash
Executable file
51 lines
1.9 KiB
Bash
Executable file
#!/bin/sh
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#
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# No copyright is claimed. This code is in the public domain; do with
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# it what you wish.
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#
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# Author: Johannes Schauer Marin Rodrigues <josch@mister-muffin.de>
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#
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# This is a wrapper around gpgv as invoked by apt. It turns EXPKEYSIG results
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# from gpgv into GOODSIG results. This is necessary for apt to access very old
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# timestamps from snapshot.debian.org for which the GPG key is already expired:
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#
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# Get:1 http://snapshot.debian.org/archive/debian/20150106T000000Z unstable InRelease [242 kB]
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# Err:1 http://snapshot.debian.org/archive/debian/20150106T000000Z unstable InRelease
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# The following signatures were invalid: EXPKEYSIG 8B48AD6246925553 Debian Archive Automatic Signing Key (7.0/wheezy) <ftpmaster@debian.org>
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# Reading package lists...
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# W: GPG error: http://snapshot.debian.org/archive/debian/20150106T000000Z unstable InRelease: The following signatures were invalid: EXPKEYSIG 8B48AD6246925553 Debian Archive Automatic Signing Key (7.0/wheezy) <ftpmaster@debian.org>
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# E: The repository 'http://snapshot.debian.org/archive/debian/20150106T000000Z unstable InRelease' is not signed.
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#
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# To use this script, call apt with
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#
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# -o Apt::Key::gpgvcommand=/usr/libexec/mmdebstrap/gpgvnoexpkeysig
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#
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# Scripts doing similar things can be found here:
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#
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# * debuerreotype as /usr/share/debuerreotype/scripts/.gpgv-ignore-expiration.sh
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# * derivative census: salsa.d.o/deriv-team/census/-/blob/master/bin/fakegpgv
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set -eu
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find_gpgv_status_fd() {
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while [ "$#" -gt 0 ]; do
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if [ "$1" = '--status-fd' ]; then
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echo "$2"
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return 0
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fi
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shift
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done
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# default fd is stdout
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echo 1
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}
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GPGSTATUSFD="$(find_gpgv_status_fd "$@")"
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case $GPGSTATUSFD in
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''|*[!0-9]*)
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echo "invalid --status-fd argument" >&2
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exit 1
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;;
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esac
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# we need eval because we cannot redirect a variable fd
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eval 'exec gpgv "$@" '"$GPGSTATUSFD"'>&1 | sed "s/^\[GNUPG:\] EXPKEYSIG /[GNUPG:] GOODSIG /" >&'"$GPGSTATUSFD"
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