grab.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (C) 2014 W. Trevor King <wking@tremily.us>
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions are met:
   7 #
   8 # * Redistributions of source code must retain the above copyright notice, this
   9 # list of conditions and the following disclaimer.
  10 #
  11 # * Redistributions in binary form must reproduce the above copyright notice,
  12 # this list of conditions and the following disclaimer in the documentation
  13 # and/or other materials provided with the distribution.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  16 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  18 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  19 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25 # POSSIBILITY OF SUCH DAMAGE.
  26
  27 MIRROR="${MIRROR:-http://distfiles.gentoo.org/}"
  28 BASE_ARCH_URL="${BASE_ARCH_URL:-${MIRROR}releases/amd64/autobuilds/}"
  29 LATEST=$(wget -O - "${BASE_ARCH_URL}latest-stage3.txt")
  30 DATE=$(echo "${LATEST}" | sed -n 's|/stage3-amd64-[0-9]*[.]tar[.]bz2.*||p')
  31 ARCH_URL="${ARCH_URL:-${BASE_ARCH_URL}${DATE}/}"
  32 STAGE3="${STAGE3:-stage3-amd64-${DATE}.tar.bz2}"
  33 STAGE3_CONTENTS="${STAGE3_CONTENTS:-${STAGE3}.CONTENTS}"
  34 STAGE3_DIGESTS="${STAGE3_DIGESTS:-${STAGE3}.DIGESTS.asc}"
  35 PORTAGE_URL="${PORTAGE_URL:-${MIRROR}snapshots/}"
  36 PORTAGE="${PORTAGE:-portage-${DATE}.tar.xz}"
  37 PORTAGE_SIG="${PORTAGE_SIG:-${PORTAGE}.gpgsig}"
  38
  39 die()
  40 {
  41         echo "$1"
  42         exit 1
  43 }
  44
  45 for FILE in "${STAGE3}" "${STAGE3_CONTENTS}" "${STAGE3_DIGESTS}"; do
  46         if [ ! -f "downloads/${FILE}" ]; then
  47                 wget -O "downloads/${FILE}" "${ARCH_URL}${FILE}"
  48                 if [ "$?" -ne 0 ]; then
  49                         rm -f "downloads/${FILE}" &&
  50                         die "failed to download ${ARCH_URL}${FILE}"
  51                 fi
  52         fi
  53 done
  54
  55 for FILE in "${PORTAGE}" "${PORTAGE_SIG}"; do
  56         if [ ! -f "downloads/${FILE}" ]; then
  57                 wget -O "downloads/${FILE}" "${PORTAGE_URL}${FILE}" ||
  58                 if [ "$?" -ne 0 ]; then
  59                         rm -f "downloads/${FILE}" &&
  60                         die "failed to download ${PORTAGE_URL}${FILE}"
  61                 fi
  62         fi
  63 done
  64
  65 sed -i "s/DATE=.*/DATE=\"\${DATE:-${DATE}}\"/" build.sh