Improvement Request: Replace Jenkins checks by CodeClimate or Codacy or Codecov

[drew2a]

Now we perform static code analyses by running pylint and flake8 on our Linux machine.

Problems:

• Our Jenkins jobs (pylint and flake8) require maintenance procedures from time to time.
• Our Jenkins jobs (pylint and flake8) slow down a PR check.
• Generated reports are not inlined and are hard to use.

These checks could be replaced by https://github.com/marketplace/code-climate with:

• pylint
• pep8
• bandit

CodeClimat is free for open-source projects.

SonarCloud Code Analysis and Diff Coverage also could be replaced by CodeClimate:

• https://docs.codeclimate.com/docs/configuring-test-coverage
• https://docs.codeclimate.com/docs/sonar-python

[drew2a]

Also, we have installed https://about.codecov.io/ but it seems that we don't use it.

[drew2a]

Codacy is a better alternative to CodeClimate.

https://docs.codacy.com/repositories-configure/integrations/github-integration/

An example:

[drew2a]

List of checks: https://app.codacy.com/gh/Tribler/tribler/patterns/list

[drew2a]

Code coverage diff example: https://app.codecov.io/gh/Tribler/tribler/compare/6866/changes

[drew2a]

Summary:

• GitHub Actions are used for:
  • pytest win
  • pytest mac
  • pytest ubuntu
  • documentation build
  • code coverage generation
• Codacy is used for:
  • Static analyses for each PR
  • Static analyses for the whole codebase (every push on main)
• Codecov is used for:
  • Highlighting a diff coverage for each PR