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#!/bin/bash
# render openvpn prepared for installer
# ================================================
#
# requires
# - a linux host with mingw installed
# - a rw directory mounted to /var/build
# returns nonzero exit code when failed
#
# clone openvpn-build repository
# runs cross-compile build
# - downloads openvpn dependencies
# - compiles
# copy files to executables so they can be installed
# cleans up (remove read-write copy)
# the location where the openvpn binaries are placed
absolute_executable_path=/var/build/executables
temporary_build_path=/var/build/openvpn
# cleanup the temporary build path for subsequent executes
function cleanup() {
rm -r ${temporary_build_path} 2>/dev/null
}
# build openvpn source
function buildSource() {
pushd ${temporary_build_path}/openvpn-build/generic
CHOST=i686-w64-mingw32 \
CBUILD=i686-pc-linux-gnu \
./build \
|| die 'build openvpn from source failed'
cp -r image/openvpn ${absolute_executable_path}/openvpn
popd
}
# fetch tap-windows.exe as defined in the openvpn vars
function fetchTapWindows() {
pushd ${temporary_build_path}/openvpn-build
source windows-nsis/build-complete.vars
wget ${TAP_WINDOWS_INSTALLER_URL} -O ${absolute_executable_path}/openvpn/tap-windows.exe || die 'tap-windows.exe could not be fetched'
popd
}
# prepare read-write copy
function prepareBuildPath() {
cleanup
mkdir -p ${temporary_build_path}
pushd ${temporary_build_path}
git clone https://github.com/OpenVPN/openvpn-build || die 'openvpn-build could not be cloned'
popd
}
# display failure message and emit non-zero exit code
function die() {
echo "die:" $@
exit 1
}
function main() {
prepareBuildPath
buildSource
fetchTapWindows
cleanup
}
main $@
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