nixpkgs/pkgs/build-support/fetchsvn/builder.sh

source $stdenv/setup

header "exporting $url (r$rev) into $out"

if test "$sshSupport"; then
    export SVN_SSH="$openssh/bin/ssh"
fi

if test -n "$http_proxy"; then
    # Configure proxy
    mkdir .subversion
    proxy="${http_proxy#*://}"

    echo '[global]' > .subversion/servers
    echo "http-proxy-host = ${proxy%:*}" >> .subversion/servers
    echo "http-proxy-port = ${proxy##*:}" >> .subversion/servers

    export HOME="$PWD"
fi;

# Pipe the "p" character into Subversion to force it to accept the
# server's certificate.  This is perfectly safe: we don't care
# whether the server is being spoofed --- only the cryptographic
# hash of the output matters. Pass in extra p's to handle redirects.
printf 'p\np\np\n' | svn export --trust-server-cert --non-interactive ${ignoreExternals:+--ignore-externals} \
    -r "$rev" "$url" "$out"

stopNest