package mod import ( "fmt" "os" "path" "path/filepath" "regexp" "strings" ) type Require struct { repo string path string cloneRepo string clonePath string version string versionConstraint string checksum string } func newRequire(repoName, versionConstraint string) (*Require, error) { switch { case strings.HasPrefix(repoName, "github.com"): return parseGithubRepoName(repoName, versionConstraint) case strings.HasPrefix(repoName, "alpha.dagger.io"): return parseDaggerRepoName(repoName, versionConstraint) default: return nil, fmt.Errorf("repo name does not match suported providers") } } var githubRepoNameRegex = regexp.MustCompile(`(github.com/[a-zA-Z0-9_.-]+/[a-zA-Z0-9_.-]+)([a-zA-Z0-9/_.-]*)@?([0-9a-zA-Z.-]*)`) func parseGithubRepoName(repoName, versionConstraint string) (*Require, error) { repoMatches := githubRepoNameRegex.FindStringSubmatch(repoName) if len(repoMatches) < 4 { return nil, fmt.Errorf("issue when parsing github repo") } return &Require{ repo: repoMatches[1], path: repoMatches[2], version: repoMatches[3], versionConstraint: versionConstraint, cloneRepo: repoMatches[1], clonePath: repoMatches[2], }, nil } var daggerRepoNameRegex = regexp.MustCompile(`alpha.dagger.io([a-zA-Z0-9/_.-]*)@?([0-9a-zA-Z.-]*)`) func parseDaggerRepoName(repoName, versionConstraint string) (*Require, error) { repoMatches := daggerRepoNameRegex.FindStringSubmatch(repoName) if len(repoMatches) < 3 { return nil, fmt.Errorf("issue when parsing dagger repo") } return &Require{ repo: "alpha.dagger.io", path: repoMatches[1], version: repoMatches[2], versionConstraint: versionConstraint, cloneRepo: "github.com/dagger/universe", clonePath: path.Join("/stdlib", repoMatches[1]), }, nil } func (r *Require) String() string { return fmt.Sprintf("%s@%s", r.fullPath(), r.version) } func (r *Require) fullPath() string { return path.Join(r.repo, r.path) } func replace(r *Require, sourceRepoPath, destPath string) error { // remove previous package directory if err := os.RemoveAll(destPath); err != nil { return err } // Make sure the destination exists if err := os.MkdirAll(filepath.Dir(destPath), 0755); err != nil { return err } if err := os.Rename(path.Join(sourceRepoPath, r.clonePath), destPath); err != nil { return err } return nil }