yaml - Multiline string in Azure Pipelines

Question

Can I use a multiline YAML string in Azure Pipelines?

Using the ASP.NET Core (.NET Framework) template I tried multilining the msbuildArgs but that didn't work.

- task: VSBuild@1
  inputs:
    solution: '$(solution)'
    msbuildArgs: >
       '/p:DeployOnBuild=true /p:WebPublishMethod=Package'
       '/p:PackageAsSingleFile=true /p:SkipInvalidConfigurations=true'
       '/p:DesktopBuildPackageLocation="$(build.artifactStagingDirectory)WebApp.zip"'
       '/p:DeployIisAppPath="Default Web Site"'
    platform: '$(buildPlatform)'
    configuration: '$(buildConfiguration)'

MSBUILD : error MSB1008: Only one project can be specified.
Switch: '/p:DeployOnBuild=true

---

Reviewing the string reference documentation I don't see any about this topic.

Answer 1

I always use the YAML block chomping operator like this

msbuildArgs: >-
  /p:DeployOnBuild=true
  /p:WebPublishMethod=Package
  /p:PackageAsSingleFile=true
  /p:SkipInvalidConfigurations=true
  /p:DesktopBuildPackageLocation="$(build.artifactStagingDirectory)WebApp.zip"
  /p:DeployIisAppPath="Default Web Site"

Works well and makes things crystal clear and neat