functions/cache.sh

   1 #!/bin/sh
   2
   3 ## live-build(7) - System Build Scripts
   4 ## Copyright (C) 2006-2014 Daniel Baumann <mail@daniel-baumann.ch>
   5 ##
   6 ## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
   7 ## This is free software, and you are welcome to redistribute it
   8 ## under certain conditions; see COPYING for details.
   9
  10
  11 Restore_cache ()
  12 {
  13         DIRECTORY="${1}"
  14
  15         if [ "${LB_CACHE}" = "true" ] && [ "${LB_CACHE_PACKAGES}" = "true" ]
  16         then
  17                 if [ -e "${DIRECTORY}" ]
  18                 then
  19                         # Restore old cache
  20                         if [ "$(stat --printf %d ${DIRECTORY})" = "$(stat --printf %d chroot/var/cache/apt/archives)" ]
  21                         then
  22                                 # with hardlinks
  23                                 find "${DIRECTORY}" -name "*.deb" | xargs cp -fl -t chroot/var/cache/apt/archives
  24                         else
  25                                 # without hardlinks
  26                                 find "${DIRECTORY}" -name "*.deb" | xargs cp -t chroot/var/cache/apt/archives
  27                         fi
  28                 fi
  29         fi
  30 }
  31
  32 Save_cache ()
  33 {
  34         DIRECTORY="${1}"
  35
  36         if [ "${LB_CACHE}" = "true" ] && [ "${LB_CACHE_PACKAGES}" = "true" ]
  37         then
  38                 # Cleaning current cache
  39                 # In case of interrupted or incomplete builds, this may return an error,
  40                 # but we still do want to save the cache.
  41                 Chroot chroot "apt-get autoclean" || true
  42
  43                 if ls chroot/var/cache/apt/archives/*.deb > /dev/null 2>&1
  44                 then
  45                         # Creating cache directory
  46                         mkdir -p "${DIRECTORY}"
  47
  48                         # Saving new cache
  49                         for PACKAGE in chroot/var/cache/apt/archives/*.deb
  50                         do
  51                                 if [ -e "${DIRECTORY}"/"$(basename ${PACKAGE})" ]
  52                                 then
  53                                         rm -f "${PACKAGE}"
  54                                 else
  55                                         mv "${PACKAGE}" "${DIRECTORY}"
  56                                 fi
  57                         done
  58                 fi
  59         else
  60                 # Purging current cache
  61                 rm -f chroot/var/cache/apt/archives/*.deb
  62         fi
  63 }