build

#!/bin/bash
set -eEu
set -o pipefail

################################################################################
# Build the awscli docker image.
# Invoke as "ci/build" from the top-level of the git repo.
################################################################################

. ci/bootstrap

# We usually want to install the latest version of awscli, but
# allow to override by running `VERSION=1.11.27 ci/build`.
VERSION=${VERSION:-latest}

# Too bad the Dockerfile cannot contain something like this:
#   LABEL version=$(aws --version 2>&1 | awk '{print $1}' | cut -d/ -f2)
# Therefore we have to discover the version before we build the image
# in order to put the version into a LABEL.
if [[ ${VERSION} == latest ]] && command -v pypi &>/dev/null; then
  VERSION="$(pypi info awscli | awk '/^Latest release/ {print $NF}')"
fi

UP2DATE=false
declare -r AUTOBUILD=${AUTOBUILD:-false}

docker_hub_version() {
  # Query for the version of the image on Docker Hub.
  for _ in {1..3}; do
    if microbadger -name jumanjiman/aws | awk '/version/ {print $NF}'; then
      return 0
    else
      sleep 30s
    fi
  done
  return 1
}

# AUTOBUILD is defined through parameterized builds.
# See ci/autobuild directory for details.
if [[ ${AUTOBUILD} == true ]]; then
  # On circleci, we use https://github.com/jumanjihouse/cci
  # to provide the microbadger and pypi commands.
  pypi_latest=$(pypi info awscli | awk '/^Latest release/ {print $NF}')
  dock_latest="$(docker_hub_version)"
  VERSION=${pypi_latest}

  info "pypi version is \"${pypi_latest}\" according to pypi."
  info "dock version is \"${dock_latest}\" according to microbadger."

  if [[ ${pypi_latest} == "${dock_latest}" ]]; then
    UP2DATE=true
  fi
fi

cat >ci/vars <<-EOF
# shellcheck shell=bash
declare -rx VERSION=${VERSION}
declare -rx UP2DATE=${UP2DATE}
declare -rx BUILD_DATE=$(date +%Y%m%dT%H%M)
declare -rx VCS_REF=$(git rev-parse --short HEAD)
declare -rx TAG=\${VERSION}-\${BUILD_DATE}-git-\${VCS_REF}
EOF

. ci/vars
if [[ ${UP2DATE} == true ]]; then
  info "Image is up-to-date on docker hub; nothing to do."
else
  run docker-compose build
  run docker inspect jumanjiman/aws
  run docker images | grep -E -e '^REPOSITORY' -e '^jumanjiman/aws' -e 'RUN'
fi