--- /dev/null
+#!/bin/sh -ex
+
+cur=$(pwd)
+tmp=$(mktemp -d)
+release=$1
+[ -n "$release" ]
+
+git clone . $tmp/nncp-$release
+repos="
+ src/github.com/davecgh/go-xdr
+ src/github.com/dustin/go-humanize
+ src/github.com/flynn/noise
+ src/github.com/minio/blake2b-simd
+ src/golang.org/x/crypto
+ src/golang.org/x/net
+ src/golang.org/x/sys
+ src/gopkg.in/check.v1
+ src/gopkg.in/yaml.v2
+"
+for repo in $repos; do
+ git clone $repo $tmp/nncp-$release/$repo
+done
+cd $tmp/nncp-$release
+git checkout $release
+git submodule update --init
+
+cat > $tmp/includes <<EOF
+golang.org/x/crypto/AUTHORS
+golang.org/x/crypto/CONTRIBUTORS
+golang.org/x/crypto/LICENSE
+golang.org/x/crypto/PATENTS
+golang.org/x/crypto/README
+golang.org/x/crypto/blake2b
+golang.org/x/crypto/blake2s
+golang.org/x/crypto/chacha20poly1305
+golang.org/x/crypto/curve25519
+golang.org/x/crypto/ed25519
+golang.org/x/crypto/hkdf
+golang.org/x/crypto/nacl
+golang.org/x/crypto/poly1305
+golang.org/x/crypto/salsa20
+golang.org/x/crypto/twofish
+golang.org/x/net/AUTHORS
+golang.org/x/net/CONTRIBUTORS
+golang.org/x/net/LICENSE
+golang.org/x/net/PATENTS
+golang.org/x/net/README
+golang.org/x/net/netutil
+golang.org/x/sys/AUTHORS
+golang.org/x/sys/CONTRIBUTORS
+golang.org/x/sys/LICENSE
+golang.org/x/sys/PATENTS
+golang.org/x/sys/README
+golang.org/x/sys/unix
+EOF
+tar cfCI - src $tmp/includes | tar xfC - $tmp
+rm -fr src/golang.org
+mv $tmp/golang.org src/
+rm -fr $tmp/golang.org $tmp/includes
+
+find src -name .travis.yml -delete
+rm -fr src/github.com/davecgh/go-xdr/xdr
+
+cat > doc/download.texi <<EOF
+@node Tarballs
+@section Prepared tarballs
+You can obtain releases source code prepared tarballs on
+@url{http://www.nncpgo.org/}.
+EOF
+make -C doc
+rm -r doc/.well-known doc/nncp.html/.well-known
+
+find . -name .git -type d | xargs rm -fr
+find . -name .gitignore -delete
+
+cd ..
+tar cvf nncp-"$release".tar nncp-"$release"
+xz -9 nncp-"$release".tar
+gpg --detach-sign --sign --local-user 0x2B25868E75A1A953 nncp-"$release".tar.xz
+mv $tmp/nncp-"$release".tar.xz $tmp/nncp-"$release".tar.xz.sig $cur/doc/nncp.html/download
+
+tarball=$cur/doc/nncp.html/download/nncp-"$release".tar.xz
+size=$(( $(cat $tarball | wc -c) / 1024 ))
+hash=$(gpg --print-md SHA256 < $tarball)
+cat <<EOF
+An entry for documentation:
+@item @ref{Release $release, $release} @tab $size KiB
+@tab @url{download/nncp-${release}.tar.xz, link} @url{download/nncp-${release}.tar.xz.sig, sign}
+@tab @code{$hash}
+EOF
+
+cd $cur
+
+cat <<EOF
+Subject: NNCP $release release announcement
+
+I am pleased to announce nncp $release release availability!
+
+NNCP (Node to Node copy) is a collection of utilities simplifying
+secure store-and-forward files and mail exchanging.
+
+This utilities are intended to help build up small size (dozens of
+nodes) ad-hoc friend-to-friend (F2F) statically routed darknet networks
+for fire-and-forget secure reliable files, file requests and Internet
+mail transmission. All packets are integrity checked, end-to-end
+encrypted (E2EE), explicitly authenticated by known participants public
+keys. Onion encryption is applied to relayed packets. Each node acts
+both as a client and server, can use push and poll behaviour model.
+
+Out-of-box offline sneakernet/floppynet, dead drops and air-gapped
+computers support. But online TCP daemon with full-duplex resumable data
+transmission exists.
+
+------------------------ >8 ------------------------
+
+The main improvements for that release are:
+
+$(git cat-file -p $release | sed -n '6,/^.*BEGIN/p' | sed '$d')
+
+------------------------ >8 ------------------------
+
+NNCP's home page is: http://www.nncpgo.org/
+
+Source code and its signature for that version can be found here:
+
+ http://www.nncpgo.org/download/nncp-${release}.tar.xz ($size KiB)
+ http://www.nncpgo.org/download/nncp-${release}.tar.xz.sig
+
+SHA256 hash: $hash
+GPG key ID: 0x2B25868E75A1A953 NNCP releases <releases@nncpgo.org>
+Fingerprint: 92C2 F0AE FE73 208E 46BF F3DE 2B25 868E 75A1 A953
+
+Please send questions regarding the use of NNCP, bug reports and patches
+to mailing list: https://lists.cypherpunks.ru/pipermail/nncp-devel/
+EOF