libgit2/ci/getcontainer.sh
2022-08-28 14:13:25 +02:00

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1.6 KiB
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#!/bin/bash
set -e
IMAGE_NAME=$1
DOCKERFILE_PATH=$2
if [ "${IMAGE_NAME}" = "" ]; then
echo "usage: $0 image_name [dockerfile]"
exit 1
fi
if [ "${DOCKERFILE_PATH}" = "" ]; then
DOCKERFILE_PATH="${IMAGE_NAME}"
fi
if [ "${DOCKER_REGISTRY}" = "" ]; then
echo "DOCKER_REGISTRY environment variable is unset."
echo "Not running inside GitHub Actions or misconfigured?"
exit 1
fi
DOCKER_CONTAINER="${GITHUB_REPOSITORY}/${IMAGE_NAME}"
DOCKER_REGISTRY_CONTAINER="${DOCKER_REGISTRY}/${DOCKER_CONTAINER}"
echo "dockerfile=${DOCKERFILE_PATH}" >> $GITHUB_ENV
echo "docker-container=${DOCKER_CONTAINER}" >> $GITHUB_ENV
echo "docker-registry-container=${DOCKER_REGISTRY_CONTAINER}" >> $GITHUB_ENV
# Identify the last git commit that touched the Dockerfiles
# Use this as a hash to identify the resulting docker containers
DOCKER_SHA=$(git log -1 --pretty=format:"%h" -- "${DOCKERFILE_PATH}")
echo "docker-sha=${DOCKER_SHA}" >> $GITHUB_ENV
DOCKER_REGISTRY_CONTAINER_SHA="${DOCKER_REGISTRY_CONTAINER}:${DOCKER_SHA}"
echo "docker-registry-container-sha=${DOCKER_REGISTRY_CONTAINER_SHA}" >> $GITHUB_ENV
echo "docker-registry-container-latest=${DOCKER_REGISTRY_CONTAINER}:latest" >> $GITHUB_ENV
echo "::: logging in to ${DOCKER_REGISTRY} as ${GITHUB_ACTOR}"
exists="true"
docker login https://${DOCKER_REGISTRY} -u ${GITHUB_ACTOR} -p ${GITHUB_TOKEN} || exists="false"
echo "::: pulling ${DOCKER_REGISTRY_CONTAINER_SHA}"
if [ "${exists}" != "false" ]; then
docker pull ${DOCKER_REGISTRY_CONTAINER_SHA} || exists="false"
fi
if [ "${exists}" = "true" ]; then
echo "docker-container-exists=true" >> $GITHUB_ENV
else
echo "docker-container-exists=false" >> $GITHUB_ENV
fi