String does not match the pattern of "^PowerShell@2$".

We have the following task in azure-pipelines.yaml file.

    - task: PublishBuildArtifacts@1
      condition: eq(variables['Build.SourceBranch'], 'refs/heads/main')
      displayName: 'Publish Build Artifacts'

The below false positive error will be shown on the PublishBuildArtifacts@1 line.

Publish build artifacts to Azure Pipelines or a Windows file share
String does not match the pattern of "^PowerShell@2$".
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No quick fixes available

See related issue.

[evidolob]

@sheeeng As for Azure Pipelines it is better to use https://marketplace.visualstudio.com/items?itemName=ms-azure-devops.azure-pipelines as it has build in language server specific for azure-pipelines.yaml and that server has support of ignoreCase fields.

[evidolob]

@JPinkney @gorkem I done investigation around this issue, the problem in schema itself, it is used ignoreCase field for some object fields. I cannot find any mentions of ignoreCase in JSON Schema spec, across schema it has different values, like key, all, value. json-language-server also doesn’t have support of this:

Schema used for that JSON is https://raw.githubusercontent.com/microsoft/azure-pipelines-vscode/master/service-schema.json As you can see it has exactly the same error.

And error happened because object with PublishBuildArtifacts@1 defined as:

        {
          "properties": {
            "task": {
              "description": "Publish build artifacts\n\nPublish build artifacts to Azure Pipelines or a Windows file share",
              "ignoreCase": "value",
              "pattern": "^PublishBuildArtifacts@1$"
            },
            "inputs": {
              "description": "Publish build artifacts inputs",
              "properties": {
                "PathtoPublish": {
                  "type": "string",
                  "description": "Path to publish",
                  "ignoreCase": "key"
                },
                "ArtifactName": {
                  "type": "string",
                  "description": "Artifact name",
                  "ignoreCase": "key"
                },
...
              "additionalProperties": false,
              "required": []
            }
          },
          "firstProperty": [
            "task"
          ],
          "required": [
            "task"
          ]
        }

So next yaml doesn’t have error:

---
trigger:
- main

pool:
  vmImage: 'ubuntu-latest'

stages:
- stage: 'BuildStage'
  jobs:
  - job: 'BuildJob'
    pool:
      vmImage: 'ubuntu-latest'
    steps:
    - task: PublishBuildArtifacts@1
      condition: eq(variables['Build.SourceBranch'], 'refs/heads/main')
      displayName: 'Publish Build Artifacts'
      inputs:
        PathtoPublish: artifacts
        ArtifactName: artifacts

Need to set pathToPublish -> PathtoPublish and artifactName -> ArtifactName as their names defined in schema.

In the end, I not sure that we need to implement support of ignoreCase, as it is not part of JSON Schema specification. WDYT?