Function InferRepoRootAndSubpath

cli/pkg/gitutil/gitutil.go:354–381

InferRepoRootAndSubpath infers the root of the Git repository and the subpath from the given path. Since the extraction stops at first .git directory it means that if a subpath in a github monorepo is deployed as a rill managed project it will prevent the subpath from being inferred. This means : -

(path string)

// - user will need to explicitly set the subpath if they want to connect this to Github.
// - When finding matching projects it will only list the rill managed projects for that subpath.
func InferRepoRootAndSubpath(path string) (string, string, error) {
	// check if is a git repository
	repoRoot, err := InferGitRepoRoot(path)
	if err != nil {
		return "", "", err
	}

	// infer subpath if it exists
	subPath, err := filepath.Rel(repoRoot, path)
	if err != nil {
		// should never happen because repoRoot is detected from path
		return "", "", err
	}
	if subPath == "." || subPath == "" {
		// no subpath
		return repoRoot, "", nil
	}
	// check if subpath is in .gitignore
	ignored, err := isGitIgnored(repoRoot, subPath)
	if err != nil {
		return "", "", err
	}
	if ignored {
		// if subpath is ignored this is not a valid git path
		return "", "", ErrNotAGitRepository
	}
	return repoRoot, subPath, nil
}