Enterprise (self-hosted) git providers: build clones from hardcoded gitlab.com/github.com/bitbucket.org

[Yuyz0112]

Summary

Projects::BuildJob#project_git builds the clone URL from a hardcoded host per provider type:

base_url = if provider.github?
  "github.com"
elsif provider.gitlab?
  "gitlab.com"
elsif provider.bitbucket?
  "bitbucket.org"
end

Enterprise (self-hosted) providers are supported elsewhere — Provider#enterprise?, #api_base_url and #source_base_url all honor registry_url, and Providers::CreateGitlabProvider validates the PAT against the self-hosted instance just fine. But the actual build then tries to clone from gitlab.com and fails:

fatal: Authentication failed for 'https://gitlab.com/<owner>/<repo>.git/'
Failed to clone repository: Command failed with exit code 128

Repro

1. Create a GitLab provider with registry_url pointing at a self-hosted GitLab instance (PAT validates OK).
2. Create a project from a repo on that instance and deploy.
3. Build fails at clone with the error above.

Suggested fix

Use provider.source_base_url in project_git instead of the hardcoded hosts. For instances that are HTTP-only (common for internal GitLab), the scheme could be taken from registry_url rather than hardcoding https://.

We are running Canine self-hosted (BOOT_MODE=cluster, image ghcr.io/caninehq/canine:latest as of 2026-08-01) against a self-hosted GitLab and currently patch this via an initializer. Happy to send a PR if the source_base_url approach sounds right to you.