Azure devops - server-side git hooks

Question

How can we implement server-side hooks, or any similar solution, to restrict git push into git server?

For example, we want to disable push of commits containing *.class files.

Answer 1

I don't think Azure DevOps uses hooks.

You can use Branch Policies to make use of an external validation service (as I understand it this uses web hooks).

Additional: the status of this User Voice request indicates the above is the official answer.

But maybe the simple case would be .gitignore and code reviews?

Answer 2

What I do is using build option together with policies in Azure DevOps. This is my azure-pipelines.yml file:

---
trigger:
  branches:
    exclude:
      - '*'

pool:
  vmImage: 'ubuntu-latest'

steps:
  - script: sudo apt-get install python3-pip
    displayName: 'Install Python PIP'

  - script: sudo apt-get install python3-setuptools
    condition: succeeded()
    displayName: Install Python SetupTools

  - script: sudo pip3 install -r requirements.txt
    condition: succeeded()
    displayName: Install Python PIP Packages

  - task: PythonScript@0
    inputs:
      scriptSource: filePath
      scriptPath: hooks/lint_checker.py
      pythonInterpreter: python3
    condition: succeeded()
    displayName: Lint Checker