lib/aur-chroot

   1 #!/bin/bash
   2 # aur-chroot - build packages with systemd-nspawn
   3 [[ -v AUR_DEBUG ]] && set -o xtrace
   4 set -o errexit
   5 argv0=chroot
   6 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
   7 PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
   8 machine=$(uname -m)
   9
  10 # default arguments
  11 directory=/var/lib/aurbuild/$machine
  12 makechrootpkg_args=(-cu)  # XXX: allow unsetting these options?
  13 makechrootpkg_makepkg_args=()
  14
  15 # default options
  16 update=0 build=0 create=0 status=0 print_path=0
  17
  18 args_csv() {
  19     # shellcheck disable=SC2155
  20     local str=$(printf '%s,' "$@")
  21     printf '%s' "${str%,}"
  22 }
  23
  24 # XXX: a missing makepkg.conf usually indicates a missing devtools, whereas
  25 # a missing pacman.conf usually indicates the local repository was not configured
  26 diag_makepkg_conf() {
  27     echo >&2 'Error:'
  28
  29     cat <<EOF | pr -to 4 >&2
  30 aur-$argv0 could not find a makepkg.conf(5) file for container usage. Before
  31 using aur-$argv0, make sure this file is created and valid. See OPTIONS in
  32 aur-$argv0(1) for configuration details.
  33
  34 The following file paths were checked:
  35 EOF
  36     printf '%s\n' "${@@Q}" | pr -to 8 >&2
  37 }
  38
  39 diag_pacman_conf() {
  40     echo >&2 'Error:'
  41
  42     cat <<EOF | pr -to 4 >&2
  43 aur-$argv0 could not find a pacman.conf(5) file for container usage. Before
  44 using aur-$argv0, make sure this file is created and valid. See OPTIONS in
  45 aur-$argv0(1) for configuration details.
  46
  47 The following file paths were checked:
  48 EOF
  49     printf '%s\n' "${@@Q}" | pr -to 8 >&2
  50 }
  51
  52 usage() {
  53     printf 'usage: %s [-BU] [--create] [-CDM path] [package...]\n' "$argv0"
  54     exit 1
  55 }
  56
  57 opt_short='C:D:M:x:ABNTU'
  58 opt_long=('directory:' 'pacman-conf:' 'makepkg-conf:' 'build' 'update'
  59           'create' 'bind:' 'bind-rw:' 'user:' 'makepkg-args:'
  60           'ignorearch' 'namcap' 'checkpkg' 'temp' 'makechrootpkg-args:'
  61           'margs:' 'cargs:' 'nocheck' 'suffix:')
  62 opt_hidden=('dump-options' 'status' 'path')
  63
  64 if opts=$(getopt -o "$opt_short" -l "$(args_csv "${opt_long[@]}" "${opt_hidden[@]}")" -n "$argv0" -- "$@"); then
  65     eval set -- "$opts"
  66 else
  67     usage
  68 fi
  69
  70 unset bindmounts_ro bindmounts_rw makepkg_conf pacman_conf suffix
  71 while true; do
  72     case "$1" in
  73         -x|--suffix)
  74             shift; suffix=$1 ;;
  75         -B|--build)
  76             build=1 ;;
  77         -U|--update)
  78             update=1 ;;
  79         --create)
  80             create=1 ;;
  81         --status)
  82             status=1 ;;
  83         --path)  # deprecated
  84             print_path=1 ;;
  85         # makepkg options (`--build`)
  86         -A|--ignorearch)
  87             makechrootpkg_makepkg_args+=(--ignorearch) ;;
  88         --nocheck)
  89             makechrootpkg_makepkg_args+=(--nocheck) ;;
  90         # XXX: cannot take arguments that contain commas (e.g. for file paths)
  91         --makepkg-args|--margs)
  92             shift; IFS=, read -a arg -r <<< "$1"
  93             makechrootpkg_makepkg_args+=("${arg[@]}") ;;
  94         # devtools options (`--build`)
  95         -C|--pacman-conf)
  96             shift; pacman_conf=$1 ;;
  97         -D|--directory)
  98             shift; directory=$1 ;;
  99         -M|--makepkg-conf)
 100             shift; makepkg_conf=$1 ;;
 101         --bind)
 102             shift; bindmounts_ro+=("$1") ;;
 103         --bind-rw)
 104             shift; bindmounts_rw+=("$1") ;;
 105         -N|--namcap)
 106             makechrootpkg_args+=(-n) ;;
 107         --checkpkg)
 108             makechrootpkg_args+=(-C) ;;
 109         -T|--temp)
 110             makechrootpkg_args+=(-T) ;;
 111         --user)
 112             shift; makechrootpkg_args+=(-U "$1") ;;
 113         # XXX: cannot take arguments that contain commas (e.g. for file paths)
 114         --makechrootpkg-args|--cargs)
 115             shift; IFS=, read -a arg -r <<< "$1"
 116             makechrootpkg_args+=("${arg[@]}") ;;
 117         # other options
 118         --dump-options)
 119             printf -- '--%s\n' "${opt_long[@]}" ${AUR_DEBUG+"${opt_hidden[@]}"}
 120             printf -- '%s' "${opt_short}" | sed 's/.:\?/-&\n/g'
 121             exit ;;
 122         --) shift; break ;;
 123     esac
 124     shift
 125 done
 126
 127 # XXX: default paths can be set through the Makefile (`aur-chroot.in`)
 128 etcdir=/etc/aurutils shrdir=/usr/share/devtools
 129
 130 # The pacman configuration in the chroot may contain a local repository that
 131 # is not configured on the host. Therefore, $db_name is only used for the
 132 # default paths below when specified on the command-line or through `AUR_REPO`.
 133 if [[ -v suffix ]]; then
 134     default_pacman_paths=("$etcdir/pacman-$suffix.conf"
 135                           "$etcdir/pacman-$machine.conf"
 136                           "$shrdir/pacman.conf.d/$suffix.conf"
 137                           "$shrdir/pacman.conf.d/aurutils-$machine.conf")
 138
 139     default_makepkg_paths=("$etcdir/makepkg-$suffix.conf"
 140                            "$etcdir/makepkg-$machine.conf"
 141                            "$shrdir/makepkg.conf.d/$suffix.conf"
 142                            "$shrdir/makepkg.conf.d/$machine.conf")
 143 else
 144     default_pacman_paths=("$etcdir/pacman-$machine.conf"
 145                           "$shrdir/pacman.conf.d/aurutils-$machine.conf")
 146
 147     default_makepkg_paths=("$etcdir/makepkg-$machine.conf"
 148                            "$shrdir/makepkg.conf.d/$machine.conf")
 149 fi
 150
 151 # Change the default /usr/share/devtools/pacman-extra.conf in aur-chroot to
 152 # /etc/aurutils/pacman-<repo>.conf or /etc/aurutils/pacman-<uname>.conf in
 153 # aur-build, and pass it on to aur-chroot (#824, #846)
 154 for def in "${default_pacman_paths[@]}"; do
 155     if [[ -f $def ]] && [[ ! -v pacman_conf ]]; then
 156         pacman_conf=$def
 157         break
 158     fi
 159 done
 160
 161 # The same as above but for /etc/aurutils/makepkg-<repo>.conf or
 162 # /etc/aurutils/makepkg-<uname>.conf. If the file is not found, fallback to
 163 # makepkg.conf files in /usr/share/devtools.
 164 for def in "${default_makepkg_paths[@]}"; do
 165     if [[ -f $def ]] && [[ ! -v makepkg_conf ]]; then
 166         makepkg_conf=$def
 167         break
 168     fi
 169 done
 170
 171 # No pacman configuration is available for the container, or it points to a
 172 # non-existing file. Print a matching diagnostic and exit.
 173 if [[ ! -v pacman_conf ]]; then
 174     diag_pacman_conf "${default_pacman_paths[@]}"
 175     exit 2
 176 elif [[ ! -f $pacman_conf ]]; then
 177     diag_pacman_conf "$pacman_conf"
 178     exit 2
 179 elif [[ ! -v makepkg_conf ]]; then
 180     diag_makepkg_conf "${default_makepkg_paths[@]}"
 181     exit 2
 182 elif [[ ! -f $makepkg_conf ]]; then
 183     diag_makepkg_conf "$makepkg_conf"
 184     exit 2
 185 fi
 186
 187 # Print paths to container and used makepkg/pacman paths. This does
 188 # not require a priorly created container.
 189 if (( status )); then
 190     printf 'chroot:%s\npacman:%s\nmakepkg:%s\n' "$directory" "$pacman_conf" "$makepkg_conf"
 191     exit 0
 192 fi
 193
 194 # Custom elevation command (#1024)
 195 unset auth_args
 196 AUR_PACMAN_AUTH=${AUR_PACMAN_AUTH:-sudo}
 197
 198 case $AUR_PACMAN_AUTH in
 199     sudo) auth_args+=('--preserve-env=GNUPGHOME,SSH_AUTH_SOCK,PKGDEST') ;;
 200 esac
 201
 202 # bind mount file:// paths to container (#461)
 203 # required for update/build steps
 204 while read -r key _ value; do
 205     case $key=$value in
 206         Server=file://*)
 207             bindmounts_rw+=("${value#file://}") ;;
 208     esac
 209 done < <(pacman-conf --config "$pacman_conf")
 210 wait "$!"
 211
 212 # create new container, required for update/build steps
 213 if (( create )); then
 214     # default to base-devel or multilib-devel, unless packages are
 215     # specified on the command-line.
 216     # available packages depend on the configured pacman configuration
 217     if (( $# )); then
 218         base_packages=("$@")
 219
 220     # XXX: use pacini to not process Include directives in pacman.conf
 221     # (not supported by devtools)
 222     elif [[ $(pacini --section=multilib "$pacman_conf") ]] && [[ $machine == "x86_64" ]]; then
 223         base_packages=('base-devel' 'multilib-devel')
 224     else
 225         base_packages=('base-devel')
 226     fi
 227
 228     # parent path is not created by mkarchroot (#371)
 229     if [[ ! -d $directory ]]; then
 230         # shellcheck disable=SC2086
 231         $AUR_PACMAN_AUTH install -d "$directory" -m 755 -v
 232     fi
 233
 234     if [[ ! -d $directory/root ]]; then
 235         # shellcheck disable=SC2086
 236         $AUR_PACMAN_AUTH mkarchroot -C "$pacman_conf" -M "$makepkg_conf" "$directory"/root "${base_packages[@]}"
 237     fi
 238 fi >&2
 239
 240 # arch-nspawn makes no distinction between a missing working directory
 241 # and one which does not exist
 242 if [[ ! -d $directory/root ]]; then
 243     printf >&2 '%s: %q is not a directory\n' "$argv0" "$directory"/root
 244     printf >&2 '%s: did you run aur chroot --create?\n' "$argv0"
 245     exit 20
 246 fi
 247
 248 if (( update )); then
 249     # locking is done by systemd-nspawn
 250     # shellcheck disable=SC2086
 251     $AUR_PACMAN_AUTH arch-nspawn -C "$pacman_conf" -M "$makepkg_conf" "$directory"/root \
 252          "${bindmounts_ro[@]/#/--bind-ro=}" \
 253          "${bindmounts_rw[@]/#/--bind=}" pacman -Syu --noconfirm "$@"
 254 fi >&2
 255
 256 # print path for processing by other tools (e.g. makepkg --packagelist)
 257 if (( print_path )); then
 258     realpath -- "$directory"/root
 259     exit $?
 260 fi
 261
 262 if (( build )); then
 263     # use makechrootpkg -c as default build command (sync /root container)
 264     # arguments after -- are used as makechrootpkg arguments
 265     # shellcheck disable=SC2086
 266     $AUR_PACMAN_AUTH "${auth_args[@]}" makechrootpkg -r "$directory" \
 267          "${bindmounts_ro[@]/#/-D}" "${bindmounts_rw[@]/#/-d}" \
 268          "${makechrootpkg_args[@]}" -- "${makechrootpkg_makepkg_args[@]}"
 269 fi >&2
 270
 271 # vim: set et sw=4 sts=4 ft=sh: