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