Using if statements in actions - github-actions

Question

I have this main.yml workflow right here:
name: Testing
on:
push:
branches:
- main
jobs:
upgrade-kubectl:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout#v2
- name: Install kubectl version
uses: ./.github/actions/promote-image
with:
kubectl: 'latest'
and my action.yml metadata file:
name: "Helm, Kubectl or Devspace installation setup"
description: "Install a specific version of Helm, Kubectl or Devspace. Acceptable values are latest or version strings like 1.15.0"
inputs:
kubectl:
description: "Version of Kubectl"
required: false
helm:
description: "Version of Helm"
required: false
devspace:
description: "Version of Devspace"
required: false
runs:
using: "composite"
steps:
- name: Setting up kubectl
uses: azure/setup-kubectl#v1
with:
version: ${{ inputs.kubectl }}
- name: Setting up Helm
uses: azure/setup-helm#v1
with:
version: ${{ inputs.helm }}
- name: Setting up Devspace
uses: loft-sh/setup-devspace#main
with:
version: ${{ inputs.devspace }}
Currently I am just supplying the kubectl version in my workflow, but when the action is triggered it is running all 3 steps instead.
How do I make it so that if I supply one version it only runs the one step, supply two version it runs two steps respectively, etc.
Any help would be appreciated !

Answer 1

It seems that now conditions are supported on composite actions.
Therefore, you could add if conditions at each step level according to the input used.
In that case, your action.yml workflow file would look like this:
name: "Helm, Kubectl or Devspace installation setup"
description: "Install a specific version of Helm, Kubectl or Devspace. Acceptable values are latest or version strings like 1.15.0"
inputs:
kubectl:
description: "Version of Kubectl"
required: false
helm:
description: "Version of Helm"
required: false
devspace:
description: "Version of Devspace"
required: false
runs:
using: "composite"
steps:
- name: Setting up kubectl
if: ${{ inputs.kubectl != '' }}
uses: azure/setup-kubectl#v1
with:
version: ${{ inputs.kubectl }}
- name: Setting up Helm
if: ${{ inputs.helm != '' }}
uses: azure/setup-helm#v1
with:
version: ${{ inputs.helm }}
- name: Setting up Devspace
if: ${{ inputs.devspace != '' }}
uses: loft-sh/setup-devspace#main
with:
version: ${{ inputs.devspace }}
Note that the syntax:
if: ${{ inputs.kubectl != '' }} works
if: ${{ inputs.kubectl }} != '' doesn't