alz/azuredevops/pipelines/bicep/templates/helpers/bicep-installer.yaml

---
parameters:
  - name: serviceConnection
    type: string

steps:
  - pwsh: |
        $latestVersion = (Find-Module AZ).Version
        Write-Host "Latest AZ PowerShell Version: $latestVersion"
        echo "##vso[task.setvariable variable=lastestPowerShellAzVersion;]$latestVersion"

        $installedModule = Get-InstalledModule -Name AZ -ErrorAction SilentlyContinue
        $installedVersion = $installedModule.Version
        Write-Host "Installed AZ PowerShell Version: $installedVersion"

        $runPowerShellAzUpgrade = $true

        if($installedVersion -ne $latestVersion) {
            Write-Host "Az PowerShell is not at the latest version, running upgrade step..."
        } else {
            Write-Host "Az PowerShell is already at the latest version, skipping upgrade step..."
            $runPowerShellAzUpgrade = $false
        }
        echo "##vso[task.setvariable variable=runPowerShellAzUpgrade;]$runPowerShellAzUpgrade"
    displayName: Check Az PowerShell Version

  - task: AzurePowerShell@5
    displayName: "Upgrade AZ PowerShell"
    condition: and(succeeded(), eq(variables['runPowerShellAzUpgrade'], 'true'))
    inputs:
      azureSubscription: $${{ parameters.serviceConnection }}
      pwsh: true
      preferredAzurePowerShellVersion: $(lastestPowerShellAzVersion)
      ScriptType: "InlineScript"
      Inline: |
        Write-Host "Attempted Upgrade of AZ PowerShell to $env:lastestPowerShellAzVersion"

  - pwsh: |
      $TOOLS_PATH = $env:TOOLS_PATH
      $installDir = Join-Path -Path $TOOLS_PATH -ChildPath "bicep"

      $toolFileName = "bicep"
      $toolFilePath = Join-Path -Path $installDir -ChildPath $toolFileName

      if(!(Test-Path $installDir)) {
        New-Item -ItemType Directory -Path $installDir | Out-String | Write-Verbose
      }

      $url = "https://github.com/Azure/bicep/releases/latest/download/bicep-linux-x64"

      Invoke-WebRequest -Uri $url -OutFile "$toolFilePath" | Out-String | Write-Verbose

      $isExecutable = $(test -x $toolFilePath; 0 -eq $LASTEXITCODE)
        if(!($isExecutable)) {
          chmod +x $toolFilePath
      }

      $env:PATH = "$($installDir):$env:PATH"

      Write-Host "##vso[task.setvariable variable=PATH]$env:PATH"

      bicep --version

      Write-Host "Installed Latest Bicep Version"

    displayName: Install Bicep
    env:
      TOOLS_PATH: $(Agent.ToolsDirectory)