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Moved md5 comand to a separate function and added comments

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This commit is contained in:
Ian Chakeres 2017-06-13 16:12:21 -07:00
parent d0566faace
commit 14391d3eb8
1 changed files with 23 additions and 5 deletions
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28
cluster/gce/util.sh
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@ -158,11 +158,17 @@ function copy-to-staging() {
#check whether this tar alread exists and has the same hash
#if it matches, then don't bother uploading it again
local -r remote_tar_hash=$(gsutil hash -h -m ${staging_path}/${basename_tar} 2>/dev/null | grep "Hash (md5):" | awk -F ':' '{print $2}')
if [[ -n ${remote_tar_hash} ]]; then
local -r local_tar_hash=$(gsutil hash -h -m ${tar} 2>/dev/null | grep "Hash (md5):" | awk -F ':' '{print $2}')
if [[ "${remote_tar_hash}" == "${local_tar_hash}" ]]; then
echo "+++ ${basename_tar} uploaded earlier and hash matches"
#remote_tar_md5 checks the remote location for the existing tarball and its md5
#staging_path example gs://kubernetes-staging-PROJECT/kubernetes-devel
#basename_tar example kubernetes-server-linux-amd64.tar.gz
local -r remote_tar_md5=$(gsutil_get_tar_md5 "${staging_path}/${basename_tar}")
if [[ -n ${remote_tar_md5} ]]; then
#local_tar_md5 checks the remote location for the existing tarball and its md5 hash
#tar example ./_output/release-tars/kubernetes-server-linux-amd64.tar.gz
local -r local_tar_md5=$(gsutil_get_tar_md5 "${tar}")
if [[ "${remote_tar_md5}" == "${local_tar_md5}" ]]; then
echo "+++ ${basename_tar} uploaded earlier, cloud and local file md5 match (md5 = ${local_tar_md5})"
return 0
fi
fi
@ -173,6 +179,18 @@ function copy-to-staging() {
echo "+++ ${basename_tar} uploaded (sha1 = ${hash})"
}
# Use gsutil to get the md5 hash for a particular tar
function gsutil_get_tar_md5() {
# location_tar could be local or in the cloud
# local tar_location example ./_output/release-tars/kubernetes-server-linux-amd64.tar.gz
# cloud tar_location example gs://kubernetes-staging-PROJECT/kubernetes-devel/kubernetes-server-linux-amd64.tar.gz
local -r tar_location=$1
#parse the output and return the md5 hash
#the sed command at the end removes whitespace
local -r tar_md5=$(gsutil hash -h -m ${tar_location} 2>/dev/null | grep "Hash (md5):" | awk -F ':' '{print $2}' | sed 's/^[[:space:]]*//g')
echo "${tar_md5}"
}
# Given the cluster zone, return the list of regional GCS release
# bucket suffixes for the release in preference order. GCS doesn't
# give us an API for this, so we hardcode it.