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Retry git fetch/pull to make it more resilient to e.g. network outages

This commit is contained in:
Martin Lablans 2022-11-29 07:36:05 +00:00
parent 65401f4131
commit 5593ae38bb
2 changed files with 24 additions and 2 deletions
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22
lib/functions.sh
View File

@ -136,6 +136,28 @@ setHostname() {
fi
}
# from: https://gist.github.com/sj26/88e1c6584397bb7c13bd11108a579746
# ex. use: retry 5 /bin/false
function retry {
local retries=$1
shift
local count=0
until "$@"; do
exit=$?
wait=$((2 ** $count))
count=$(($count + 1))
if [ $count -lt $retries ]; then
echo "Retry $count/$retries exited with code $exit, retrying in $wait seconds..."
sleep $wait
else
echo "Retry $count/$retries exited with code $exit, giving up."
return $exit
fi
done
return 0
}
##Setting Network properties
# currently not needed
#export HOSTIP=$(MSYS_NO_PATHCONV=1 docker run --rm --add-host=host.docker.internal:host-gateway ubuntu cat /etc/hosts | grep 'host.docker.internal' | awk '{print $1}');

4
lib/update-bridgehead.sh
View File

@ -48,10 +48,10 @@ for DIR in /etc/bridgehead $(pwd); do
old_git_hash="$(git -C $DIR rev-parse --verify HEAD)"
if [ -z "$HTTP_PROXY_URL" ]; then
log "INFO" "Git is using no proxy!"
OUT=$(git -C $DIR fetch 2>&1 && git -C $DIR pull 2>&1)
OUT=$(retry 5 git -C $DIR fetch 2>&1 && retry 5 git -C $DIR pull 2>&1)
else
log "INFO" "Git is using proxy ${HTTP_PROXY_URL} from ${CONFFILE}"
OUT=$(git -c http.proxy=$HTTP_PROXY_URL -c https.proxy=$HTTPS_PROXY_URL -C $DIR fetch 2>&1 && git -c http.proxy=$HTTP_PROXY_URL -c https.proxy=$HTTPS_PROXY_URL -C $DIR pull 2>&1)
OUT=$(retry 5 git -c http.proxy=$HTTP_PROXY_URL -c https.proxy=$HTTPS_PROXY_URL -C $DIR fetch 2>&1 && retry 5 git -c http.proxy=$HTTP_PROXY_URL -c https.proxy=$HTTPS_PROXY_URL -C $DIR pull 2>&1)
fi
if [ $? -ne 0 ]; then
report_error log "Unable to update git $DIR: $OUT"