GitHub Action - Unable to add "if" condition in steps - github

Question

I'm using composite GitHub actions, where I want to check the current branch name in composite action's some steps and make the decision on that condition.
e.g.
name: main
on:
push:
repository_dispatch:
types:
- manual-trigger
jobs:
build:
runs-on: windows-latest
steps:
- name: Checkout project
uses: actions/checkout#v2
- name: Fetch full project
run: git fetch --prune --unshallow
- name: Restore packages
run: nuget restore -ConfigFile "../Build/Nuget.config"
working-directory: Projects
env:
# ARTIFACTORY_PASSWORD is read by the nuget.config credentials section
ARTIFACTORY_PASSWORD: ${{ secrets.ARTIFACTORY_PASSWORD }}
- name: Composite Action - To build solution and execute SonarScanner
uses: ./Build/build-and-sonarscanner-execution
Where in Composite action - I do have a check that Sonar-Scanner should execute only for develop branch, else only project build will gets execute.
name: build-and-sonarscanner-execution
description: "Build the solution using msbuild and SonarScanner execution"
inputs:
# Set of parameters
runs:
using: "composite"
steps:
- name: Restore packages
run: nuget restore -ConfigFile "../Build/Nuget.config"
working-directory: ${{ inputs.solution-directory }}
env:
# ARTIFACTORY_PASSWORD is read by the nuget.config credentials section
ARTIFACTORY_PASSWORD: ${{ inputs.artifactory-password }}
shell: pwsh
- name: Install dotnet-sonarscanner package
if: {{ github.ref == 'ref/head/develop' }} This is the line where it is throwing syntax error as 'if' is not allowed under steps
run: dotnet tool install --global dotnet-sonarscanner --version 4.10.0
shell: pwsh
Here and here are the references I have looked for before applying this if condition here. And that works totally fine if I apply that main.yml, but in composite action yaml file that's not working.
Can someone please share that what am I missing in here?

Answer 1

The above syntax if: ${{ ... }} should be fine but it seems that the composite actions do not support conditions yet: https://github.com/actions/runner/blob/main/docs/adrs/0549-composite-run-steps.md
The workaround that Benjamin proposed is working for me:
run: |
if [[ "${{inputs.myVar}}" != "" ]]; then
aws ...
fi
exit 0
shell: bash

Answer 2

Try the below syntax:
if: ${{ github.ref == 'refs/heads/xxxx' }}