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Conditionally build and push container images #15

Conditionally build and push container images

Conditionally build and push container images #15

# Copyright 2024 The Cross-Media Measurement Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
name: Conditionally build and push container images
on:
workflow_dispatch:
workflow_call:
inputs:
existing-image-tag:
description: "Tag of existing published container images"
type: string
outputs:
image-tag:
description: "Tag of container images"
value: ${{ jobs.get-image-tag.outputs.image-tag }}
jobs:
get-image-tag:
runs-on: ubuntu-22.04
outputs:
image-tag: ${{ steps.get-image-tag.outputs.image-tag }}
steps:
- id: get-image-tag
name: Get image tag
env:
EXISTING_IMAGE_TAG: ${{ inputs.existing-image-tag }}
run: |
declare image_tag
if [[ -n "$EXISTING_IMAGE_TAG" ]]; then
image_tag="$EXISTING_IMAGE_TAG"
elif [[ "$GITHUB_REF_TYPE" == 'tag' ]]; then
image_tag="${GITHUB_REF_NAME#v}"
else
image_tag="$GITHUB_SHA"
fi
echo "image-tag=${image_tag}" >> "$GITHUB_OUTPUT"
push-images:
uses: ./.github/workflows/push-images.yml
if: inputs.existing-image-tag == ''
needs: [get-image-tag]
with:
image-tag: ${{ needs.get-image-tag.outputs.image-tag }}