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Added local caching and md5sum checks

This commit is contained in:
Stefan Reimer 2011-10-31 15:50:15 -07:00
parent 360261769b
commit 44e9f5e369
1 changed files with 29 additions and 3 deletions
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32
scripts/build.sh
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@ -8,6 +8,7 @@
#===============================================================================
GENTOO_MIRROR="http://gentoo.arcticnetwork.ca"
LOCAL_CACHE=/var/tmp
set -x
@ -16,6 +17,29 @@ die() {
exit 1
}
fetch_file() {
local URL=$1
local DIGESTS=$2
FILE_NAME=$(basename ${URL})
# Check local cache
if [ -f ${LOCAL_CACHE}/${FILE_NAME} ]; then
# DIGISTS available ?
if [ -n ${DIGESTS} ]; then
MD5=$(curl -s ${DIGESTS} | grep -o -E -e "^[0-9a-f]{32}\s*${FILE_NAME}$" | awk '{print $1}')
if [ $(md5sum ${LOCAL_CACHE}/${FILE_NAME} | awk '{print $1}') = ${MD5} ]; then
cp ${LOCAL_CACHE}/${FILE_NAME} .
return
fi
else
cp ${LOCAL_CACHE}/${FILE_NAME} .
return
fi
fi
wget -nc ${URL} || die "Cannot download ${URL}!"
cp ${FILE_NAME} ${LOCAL_CACHE}
}
# bootstrap ROOT_FS PROFILE ARCH
bootstrap() {
local ROOT_FS=$1
@ -59,12 +83,14 @@ bootstrap() {
cd ${ROOT_FS}
if [ ! -d "usr" ] ; then
wget "${STAGE_TARBALL}" || die "Getting stage file from ${STAGE_TARBALL} failed"
fetch_file "${STAGE_TARBALL}" "${STAGE_TARBALL}.DIGESTS"
tar jxpf stage3*.bz2 || die "Extracting stage file failed"
rm -f stage3*.bz2
fi
if [ ! -d "usr/portage" ] ; then
wget "${PORTAGE_SNAPSHOT}" || die "Getting portage snapshot ${PORTAGE_SNAPSHOT} failed"
fetch_file "${PORTAGE_SNAPSHOT}" "${PORTAGE_SNAPSHOT}.md5sum"
tar jxf portage-latest.tar.bz2 -C "${ROOT_FS}/usr" || die "Extracting portage snapshot failed"
rm -f portage-latest.tar.bz2
fi
}
@ -101,4 +127,4 @@ ARCH=${ARCH-"$(uname -m)"}
PROFILE=${PROFILE="server"}
TIMEZONE=${TIMEZONE-"GMT"}
bootstrap /mnt/gentoo ${PROFILE} ${ARCH}
bootstrap /opt/gentoo ${PROFILE} ${ARCH}