gentoo/splash-functions-bl1.sh

   1 #
   2 # splash-functions-bl1.sh
   3 # -----------------------
   4 # This is a legacy file for baselayout v1. It won't be extended to
   5 # support any new features. For these, consult the code of the splash
   6 # plugin for baselayout v2.
   7 #
   8 # Distributed under the terms of the GNU General Public License v2
   9 #
  10 # Author:     Michal Januszewski <spock@gentoo.org>
  11 # Maintainer: Michal Januszewski <spock@gentoo.org>
  12
  13 # ####################################################################
  14 #    Change any settings ONLY if you are sure what you're doing.
  15 #    Don't cry if it breaks afterwards.
  16 # ####################################################################
  17
  18 # ----------------------------------------------------------------------
  19 # RUNLEVEL   SOFTLEVEL         INTERNAL    SVCS
  20 # ----------------------------------------------------------------------
  21 # System boot-up:
  22 #    S        <none>           sysinit     CRITICAL_SERVICES
  23 #    S        boot             <none>      boot_serv - CRITICAL_SERVICES
  24 #    3        default          <none>      std
  25 #
  26 # System restart/shutdown:
  27 #   0/6       reboot/shutdown  <none>      all
  28
  29 # args: <internal_runlevel>
  30 #
  31 # This function is called when an 'rc_init' event takes place,
  32 # ie. when the runlevel is changed.
  33 splash_init() {
  34         arg="$1"
  35
  36         # Initialize variables -- either set the default values or load them from a file
  37         if [[ ${RUNLEVEL} == "S" && ${arg} == "sysinit" ]] ||
  38            [[ ${SOFTLEVEL} == "reboot" || ${SOFTLEVEL} == "shutdown" ]]; then
  39                 spl_count=0
  40                 spl_scripts=0
  41                 spl_execed=""
  42         else
  43                 splash_load_vars
  44         fi
  45
  46         export spl_count spl_scripts spl_execed
  47
  48         if [[ ${RUNLEVEL} == "S" && ${arg} == "sysinit" ]]; then
  49                 spl_scripts=$(splash_svclist_get start | tr ' ' '\n' | wc -l)
  50                 spl_count=0
  51         elif [[ ${SOFTLEVEL} == "reboot" || ${SOFTLEVEL} == "shutdown" ]]; then
  52                 spl_started=($(dolisting "${svcdir}/started/"))
  53                 spl_scripts=${#spl_started[*]}
  54         fi
  55
  56         if [[ ${RUNLEVEL} == "S" && ${arg} == "sysinit" ]] ||
  57            [[ ${SOFTLEVEL} == "reboot" || ${SOFTLEVEL} == "shutdown" ]]; then
  58                 splash_start
  59         fi
  60
  61         splash_svclist_init "${arg}"
  62         splash_save_vars
  63 }
  64
  65 # args: none
  66 #
  67 # This function is called when an 'rc_exit' event takes place,
  68 # ie. when we're almost done with executing initscripts for a
  69 # given runlevel.
  70 splash_exit() {
  71         # If we're in sysinit or rebooting, do nothing.
  72         if [[ ${RUNLEVEL} == "S" || ${SOFTLEVEL} == "reboot" || ${SOFTLEVEL} == "shutdown" ]]; then
  73                 return 0
  74         fi
  75
  76         if service_started "xdm"; then
  77                 splash_comm_send "exit staysilent"
  78         else
  79                 splash_comm_send "exit"
  80         fi
  81         splash_cache_destroy
  82 }
  83
  84 splash_update_progress() {
  85         local srv=$1
  86
  87         # FIXME
  88         splash_load_vars
  89         [[ -n "${spl_execed}" && -z "${spl_execed//* $srv */}" ]] && return
  90         [[ -z "${spl_scripts}" ]] && return
  91         spl_execed="${spl_execed} ${srv} "
  92         spl_count=$((${spl_count} + 1))
  93
  94         if [ "${spl_scripts}" -gt 0 ]; then
  95                 progress=$(($spl_count * 65535 / $spl_scripts))
  96         else
  97                 progress=0
  98         fi
  99
 100         splash_comm_send "progress ${progress}"
 101         splash_save_vars
 102         splash_comm_send "paint"
 103 }
 104
 105 ###########################################################################
 106 # Common functions
 107 ###########################################################################
 108
 109 splash_load_vars() {
 110         [[ -e ${spl_cachedir}/progress ]] && source ${spl_cachedir}/progress
 111 }
 112
 113 splash_save_vars() {
 114         if [[ ! -d ${spl_cachedir} || ! -w ${spl_cachedir} ]]; then
 115                 return
 116         fi
 117
 118         t="spl_execed=\"${spl_execed}\"\n"
 119         t="${t}spl_count=${spl_count}\n"
 120         t="${t}spl_scripts=${spl_scripts}\n"
 121
 122         (echo -e "$t" > ${spl_cachedir}/progress) 2>/dev/null
 123 }
 124
 125 splash_warn() {
 126         ewarn "$*"
 127 }
 128
 129 splash_err() {
 130         eerror "$*"
 131 }
 132
 133 ###########################################################################
 134 # Cache
 135 ###########################################################################
 136
 137 # args: <start|stop>
 138 #
 139 # Prepare the splash cache.
 140 splash_cache_prep() {
 141         # Mount an in-RAM filesystem at spl_tmpdir.
 142         mount -ns -t "${spl_cachetype}" cachedir "${spl_tmpdir}" \
 143                 -o rw,mode=0644,size="${spl_cachesize}"k
 144
 145         retval=$?
 146
 147         if [[ ${retval} -ne 0 ]]; then
 148                 eerror "Unable to create splash cache - switching to verbose."
 149                 splash_verbose
 150                 return "${retval}"
 151         fi
 152
 153         # Copy the dependency cache and services lists to our new cache dir.
 154         # With some luck, we won't have to update it.
 155         cp -a ${svcdir}/{depcache,deptree} "${spl_tmpdir}" 2>/dev/null
 156         cp -a ${spl_cachedir}/{svcs_start,svcs_stop,levels} "${spl_tmpdir}" 2>/dev/null
 157
 158         # Now that the data from the old cache is copied, move tmpdir to cachedir.
 159         mount -n --move "${spl_tmpdir}" "${spl_cachedir}"
 160
 161         h=$(ls -ld --full-time ${spl_cachedir}/deptree | cut -f6,7,8 -d' ' 2>/dev/null)
 162
 163         # Point depscan.sh to our cachedir
 164         /sbin/depscan.sh --svcdir "${spl_cachedir}"
 165
 166         if [[ "$1" == "start" ]]; then
 167                 # Check whether the list of services that will be started during boot
 168                 # needs updating. This is generally the case if:
 169                 #  - one of the caches doesn't exist
 170                 #  - our deptree was out of date
 171                 #  - we're booting with a different boot/default level than the last time
 172                 #  - one of the runlevel dirs has been modified since the last boot
 173                 if [[ ! -e ${spl_cachedir}/levels || \
 174                           ! -e ${spl_cachedir}/svcs_start ]]; then
 175                         echo $(splash_svclist_update "start") > ${spl_cachedir}/svcs_start
 176                 else
 177                         local lastlev timestamp
 178                         { read lastlev; read timestamp; } < ${spl_cachedir}/levels
 179                         if [[ "${lastlev}" != "${BOOTLEVEL}/${DEFAULTLEVEL}" || \
 180                                   "${timestamp}" != "$(ls -ld --full-time /etc/runlevels/${BOOTLEVEL} | cut -f6,7,8 -d' ')/$(ls -ld --full-time /etc/runlevels/${DEFAULTLEVEL} | cut -f6,7,8 -d' ')" || \
 181                                   "$(ls -ld --full-time ${spl_cachedir}/deptree | cut -f6,7,8 -d' ')" != "${h}" ]]; then
 182                                 echo $(splash_svclist_update "start") > ${spl_cachedir}/svcs_start
 183                         fi
 184                 fi
 185
 186                 echo -n > ${spl_cachedir}/profile
 187         fi
 188
 189         return 0
 190 }
 191
 192 splash_cache_destroy() {
 193         # There's no point in saving all the data if we're running off a livecd.
 194         if [[ -n "${CDBOOT}" ]]; then
 195                 umount -l "${spl_cachedir}" 2>/dev/null
 196                 return
 197         fi
 198
 199         splash_cache_cleanup envcache depcache deptree svcs_start svcs_stop
 200         echo "${BOOTLEVEL}/${DEFAULTLEVEL}" > "${spl_cachedir}/levels"
 201         echo "$(stat -c '%y' /etc/runlevels/${BOOTLEVEL})/$(stat -c '%y' /etc/runlevels/${DEFAULTLEVEL})" \
 202                          >> "${spl_cachedir}/levels"
 203 }
 204
 205 ###########################################################################
 206 # Service list
 207 ###########################################################################
 208
 209 # args: <internal-runlevel>
 210 splash_svclist_init() {
 211         arg="$1"
 212
 213         if [[ ${SOFTLEVEL} == "reboot" || ${SOFTLEVEL} == "shutdown" ]]; then
 214                 for i in `dolisting "${svcdir}/started/" | sed -e "s#${svcdir}/started/##g"`; do
 215                         splash_svc_update ${i} "svc_inactive_stop"
 216                 done
 217         elif [[ ${RUNLEVEL} == "S" ]]; then
 218                 local svcs=$(splash_svclist_get start)
 219
 220                 if [[ ${arg} == "sysinit" ]]; then
 221                         for i in ${svcs} ; do
 222                                 splash_svc_update ${i} "svc_inactive_start"
 223                         done
 224                 fi
 225         fi
 226 }
 227
 228 splash_svclist_update() {
 229         (
 230         # Source our own deptree and required functions
 231         source ${spl_cachedir}/deptree
 232         [[ ${RC_GOT_SERVICES} != "yes" ]] && source "${svclib}/sh/rc-services.sh"
 233
 234         svcs_started=" "
 235         svcs_order=""
 236
 237         # We're sure our depcache is up-to-date, no need to waste
 238         # time checking mtimes.
 239         check_mtime() {
 240                 return 0
 241         }
 242
 243         is_net_up() {
 244                 local netcount=0
 245
 246                 case "${RC_NET_STRICT_CHECKING}" in
 247                         lo)
 248                                 netcount="$(echo ${svcs_started} | tr ' ' '\n' | \
 249                                     egrep -c "\/net\..*$")"
 250                                 ;;
 251                         *)
 252                                 netcount="$(echo ${svcs_started} | tr ' ' '\n' | \
 253                                     grep -v 'net\.lo' | egrep -c "\/net\..*$")"
 254                                 ;;
 255                 esac
 256
 257                 # Only worry about net.* services if this is the last one running,
 258                 # or if RC_NET_STRICT_CHECKING is set ...
 259                 if [[ ${netcount} -lt 1 || ${RC_NET_STRICT_CHECKING} == "yes" ]]; then
 260                         return 1
 261                 fi
 262
 263                 return 0
 264         }
 265
 266         service_started() {
 267                 if [[ -z "${svcs_started/* ${1} */}" ]]; then
 268                         return 0
 269                 else
 270                         return 1
 271                 fi
 272         }
 273
 274         # This simulates the service startup and has to mimic the behaviour of
 275         # svc_start() from /sbin/runscript.sh and start_service() from rc-functions.sh
 276         # as closely as possible.
 277         start_service() {
 278                 local svc="$1"
 279
 280                 if service_started ${svc}; then
 281                         return
 282                 fi
 283
 284                 # Prevent recursion..
 285                 svcs_started="${svcs_started}$1 "
 286
 287                 if is_fake_service "${svc}" "${mylevel}"; then
 288                         svcs_order="${svcs_order} ${svc}"
 289                         return
 290                 fi
 291
 292                 svcs_startup="$(ineed "${svc}") \
 293                                         $(valid_iuse "${svc}") \
 294                                         $(valid_iafter "${svc}")"
 295
 296                 for x in ${svcs_startup} ; do
 297                         if [[ ${x} == "net" ]] && [[ ${svc%%.*} != "net" || ${svc##*.} == ${svc} ]] && ! is_net_up ; then
 298                                 local netservices="$(dolisting "/etc/runlevels/${BOOTLEVEL}/net.*") \
 299                                                 $(dolisting "/etc/runlevels/${mylevel}/net.*")"
 300
 301                                 for y in ${netservices} ; do
 302                                         mynetservice="${y##*/}"
 303                                         if ! service_started ${mynetservice} ; then
 304                                                 start_service "${mynetservice}"
 305                                         fi
 306                                 done
 307                         else
 308                                 if ! service_started ${x} ; then
 309                                         start_service "${x}"
 310                                 fi
 311                         fi
 312                 done
 313
 314                 svcs_order="${svcs_order} ${svc}"
 315                 return
 316         }
 317
 318         # This function should return a list of services that will be started
 319         # from /etc/init.d/autoconfig. In order to do that, we source
 320         # /etc/init.d/autoconfig and use its list_services() function.
 321         autoconfig_svcs() {
 322                 [[ -r /etc/init.d/autoconfig ]] || return
 323                 . /etc/init.d/autoconfig
 324                 echo "$(list_services)"
 325         }
 326
 327         as="$(autoconfig_svcs)"
 328         [[ -n "${SOFTLEVEL}" ]] && ss="$(dolisting "/etc/runlevels/${SOFTLEVEL}/") "
 329         sb="$(dolisting "/etc/runlevels/${BOOTLEVEL}/") "
 330         sd="$(dolisting "/etc/runlevels/${DEFAULTLEVEL}/") "
 331
 332         # If autoconfig is one of the services that will be started,
 333         # insert an updated list of services into our list.
 334         if [[ -z "${ss/*\/autoconfig */}" ]]; then
 335                 ss="${ss/\/autoconfig /\/autoconfig $as }"
 336         fi
 337
 338         if [[ -z "${sb/*\/autoconfig */}" ]]; then
 339                 sb="${sb/\/autoconfig /\/autoconfig $as }"
 340         fi
 341
 342         if [[ -z "${sd/*\/autoconfig */}" ]]; then
 343                 sd="${sd/\/autoconfig /\/autoconfig $as }"
 344         fi
 345
 346         mylevel="${BOOTLEVEL}"
 347         for i in ${CRITICAL_SERVICES} ${sb}; do
 348                 start_service "${i##*/}"
 349         done
 350         mylevel="${DEFAULTLEVEL}"
 351         for i in ${LOGGER_SERVICE} ${sd} ${ss}; do
 352                 start_service "${i##*/}"
 353         done
 354         echo "${svcs_order}"
 355         )
 356 }
 357
 358 ###########################################################################
 359 # Other
 360 ###########################################################################
 361
 362 # Override sulogin calls from baselayout so that we can attempt to remove
 363 # the splash screen
 364 sulogin() {
 365        splash "critical" > /dev/null 2>&1 &
 366        /sbin/sulogin $*
 367 }
 368
 369 # vim:ts=4