git-docker/posix/clone
Julien Duchesne 8070857203
Add retries option (#43)
* Add `retries` option

It can be enabled this way:
```
clone:
  retries: 3
```
2021-11-23 10:23:52 +00:00

117 lines
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Executable File

#!/bin/sh
if [[ -n "${DRONE_WORKSPACE}" ]]; then
# ensure the unprivileged drone user can write
# to the workspace. This is required because
# the workspace is a docker volume and is owned
# by root.
# sudo mkdir -p ${DRONE_WORKSPACE}
# sudo chown drone:drone ${DRONE_WORKSPACE}
# ensure the workspace is the current working
# directory. This should already be the case,
# but we cd just to be safe.
cd ${DRONE_WORKSPACE}
fi
# force the home directory path.
# if [ "$HOME" != "/home/drone" ]; then
# echo "[DEBUG] setting default home directory"
# export HOME=/home/drone
# fi
# if the netrc enviornment variables exist, write
# the netrc file.
if [[ ! -z "${DRONE_NETRC_MACHINE}" ]]; then
cat <<EOF > ${HOME}/.netrc
machine ${DRONE_NETRC_MACHINE}
login ${DRONE_NETRC_USERNAME}
password ${DRONE_NETRC_PASSWORD}
EOF
fi
# if the ssh_key environment variable exists, write
# the ssh key and add the netrc machine to the
# known hosts file.
if [[ ! -z "${DRONE_SSH_KEY}" ]]; then
mkdir ${HOME}/.ssh
echo -n "$DRONE_SSH_KEY" > ${HOME}/.ssh/id_rsa
chmod 600 ${HOME}/.ssh/id_rsa
touch ${HOME}/.ssh/known_hosts
chmod 600 ${HOME}/.ssh/known_hosts
ssh-keyscan -H ${DRONE_NETRC_MACHINE} > /etc/ssh/ssh_known_hosts 2> /dev/null
fi
# AWS codecommit support using AWS access key & secret key
# Refer: https://docs.aws.amazon.com/codecommit/latest/userguide/setting-up-https-unixes.html
if [[ ! -z "$DRONE_AWS_ACCESS_KEY" ]]; then
aws configure set aws_access_key_id $DRONE_AWS_ACCESS_KEY
aws configure set aws_secret_access_key $DRONE_AWS_SECRET_KEY
aws configure set default.region $DRONE_AWS_REGION
git config --global credential.helper '!aws codecommit credential-helper $@'
git config --global credential.UseHttpPath true
fi
# configure git global behavior and parameters via the
# following environment variables:
if [[ -z "${DRONE_COMMIT_AUTHOR_NAME}" ]]; then
export DRONE_COMMIT_AUTHOR_NAME=drone
fi
if [[ -z "${DRONE_COMMIT_AUTHOR_EMAIL}" ]]; then
export DRONE_COMMIT_AUTHOR_EMAIL=drone@localhost
fi
export GIT_AUTHOR_NAME=${DRONE_COMMIT_AUTHOR_NAME}
export GIT_AUTHOR_EMAIL=${DRONE_COMMIT_AUTHOR_EMAIL}
export GIT_COMMITTER_NAME=${DRONE_COMMIT_AUTHOR_NAME}
export GIT_COMMITTER_EMAIL=${DRONE_COMMIT_AUTHOR_EMAIL}
# invoke the sub-script based on the drone event type.
# TODO we should ultimately look at the ref, since
# we need something compatible with deployment events.
CLONE_TYPE=$DRONE_BUILD_EVENT
case $DRONE_COMMIT_REF in
refs/tags/* ) CLONE_TYPE=tag ;;
refs/pull/* ) CLONE_TYPE=pull_request ;;
refs/pull-request/* ) CLONE_TYPE=pull_request ;;
refs/merge-requests/* ) CLONE_TYPE=pull_request ;;
esac
git_clone_retry(){
retries="${PLUGIN_RETRIES:-0}"
if [ -n "${retries##*[0-9]*}" ] || [ "${retries}" -lt 0 ]; then
echo "PLUGIN_RETRIES defined but is not a number: ${retries}" >&2
exit 1
fi
echo "Cloning with ${retries} retries"
n=0
until [ "$n" -gt "${retries}" ]; do
$1 && return
n=$((n+1))
done
exit 1
}
case $CLONE_TYPE in
pull_request)
git_clone_retry clone-pull-request
;;
tag)
git_clone_retry clone-tag
;;
*)
git_clone_retry clone-commit
;;
esac