resources/libraries/bash/shell/qemu_utils.sh

   1 #!/bin/bash
   2 # Copyright (c) 2018 Cisco and/or its affiliates.
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at:
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 function qemu_utils.qemu_delete {
  16     # Deletes the QEMU directory
  17     # QEMU install directory
  18     qemu_install_dir=$1
  19     # QEMU install version
  20     qemu_install_ver=$2
  21
  22     [ -d ${qemu_install_dir}/${qemu_install_ver} ] && \
  23         sudo rm -r ${qemu_install_dir}/${qemu_install_ver} && \
  24         echo "${qemu_install_dir}/${qemu_install_ver} removed"
  25 }
  26
  27 function qemu_utils.qemu_install {
  28     # Downloads and installs QEMU
  29     # QEMU install directory
  30     qemu_install_dir=$1
  31     # QEMU install version
  32     qemu_install_ver=$2
  33     # QEMU patch
  34     qemu_patch=$3
  35     # Force install (if true then remove previous installation; default false)
  36     force_install=${4:-false}
  37     # QEMU repo URL
  38     qemu_package_url="http://download.qemu-project.org/${qemu_install_ver}.tar.xz"
  39
  40     if [ $force_install ]; then
  41         # Cleanup QEMU dir
  42         qemu_utils.qemu_delete $qemu_install_dir $qemu_install_ver
  43     else
  44         # Test if QEMU was installed previously
  45         test -d $qemu_install_dir && \
  46             { echo "Qemu already installed: $qemu_install_dir"; exit 0; }
  47     fi
  48
  49     tmp_dir=$(mktemp -d) || \
  50         { echo "Failed to create temporary working dir"; exit 1; }
  51     trap "rm -r ${tmp_dir}" EXIT
  52
  53     # Download QEMU source code if no local copy exists
  54     if [ ! -f /opt/${qemu_install_ver}.tar.xz ]; then
  55         sudo wget -e use_proxy=yes -P /opt -q ${qemu_package_url} || \
  56             { echo "Failed to download ${qemu_install_ver}"; exit 1; }
  57     fi
  58     tar --strip-components 1 -xvJf ${tmp_dir}/${qemu_install_ver}.tar.xz -C ${tmp_dir} && \
  59         { echo "Failed to exctract ${qemu_install_ver}.tar.xz"; exit 1; }
  60
  61     cd ${tmp_dir}
  62     sudo mkdir -p ${qemu_install_dir} || \
  63         { echo "Failed to create ${qemu_install_dir}"; exit 1; }
  64
  65     # Apply additional patches
  66     if [ $qemu_patch ]
  67     then
  68         chmod +x ${SCRIPT_DIR}/qemu_patches/${qemu_install_ver}/*
  69         run-parts --verbose --report  ${SCRIPT_DIR}/qemu_patches/${qemu_install_ver}
  70     fi
  71
  72     # Build
  73     sudo ./configure --target-list=x86_64-softmmu --prefix=${qemu_install_dir}/${qemu_install_ver} || \
  74         { echo "Failed to configure ${qemu_install_ver}"; exit 1; }
  75     sudo make -j`nproc` || \
  76         { echo "Failed to compile ${qemu_install_ver}"; exit 1; }
  77     sudo make install || \
  78         { echo "Failed to install ${qemu_install_ver}"; exit 1; }
  79
  80     echo "QEMU ${qemu_install_ver} ready"
  81 }