mirror of https://github.com/artifacthub/hub.git
90 lines
2.0 KiB
Go
90 lines
2.0 KiB
Go
package repo
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import (
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"context"
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"errors"
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"fmt"
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"io/ioutil"
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"strings"
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"github.com/artifacthub/hub/internal/hub"
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"github.com/go-git/go-git/v5"
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"github.com/go-git/go-git/v5/plumbing"
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"github.com/go-git/go-git/v5/plumbing/transport/http"
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)
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const (
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// DefaultBranch represents the branch used by default when cloning a
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// repository if no branch has been configured on it.
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DefaultBranch = "master"
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)
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// Cloner is a hub.RepositoryCloner implementation.
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type Cloner struct{}
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// CloneRepository implements the hub.RepositoryCloner interface.
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func (c *Cloner) CloneRepository(ctx context.Context, r *hub.Repository) (string, string, error) {
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// Parse repository url
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var repoBaseURL, packagesPath string
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switch r.Kind {
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case
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hub.CoreDNS,
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hub.Falco,
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hub.HelmPlugin,
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hub.KedaScaler,
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hub.Keptn,
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hub.Krew,
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hub.OLM,
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hub.OPA,
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hub.TBAction,
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hub.TektonPipeline,
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hub.TektonTask:
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matches := GitRepoURLRE.FindStringSubmatch(r.URL)
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if len(matches) < 2 {
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return "", "", fmt.Errorf("invalid repository url")
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}
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if len(matches) >= 3 {
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repoBaseURL = matches[1]
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}
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if len(matches) == 4 {
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packagesPath = strings.TrimSuffix(matches[3], "/")
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}
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default:
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return "", "", errors.New("repository kind not supported")
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}
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// Clone git repository
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tmpDir, err := ioutil.TempDir("", "artifact-hub")
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if err != nil {
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return "", "", fmt.Errorf("error creating temp dir: %w", err)
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}
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cloneOptions := &git.CloneOptions{
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URL: repoBaseURL,
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ReferenceName: plumbing.NewBranchReferenceName(GetBranch(r)),
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SingleBranch: true,
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Depth: 1,
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}
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if r.AuthPass != "" {
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cloneOptions.Auth = &http.BasicAuth{
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Username: "artifact-hub",
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Password: r.AuthPass,
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}
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}
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_, err = git.PlainCloneContext(ctx, tmpDir, false, cloneOptions)
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if err != nil {
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return "", "", err
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}
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return tmpDir, packagesPath, nil
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}
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// GetBranch returns the branch configured in the repository or the default one
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// if none was provided.
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func GetBranch(r *hub.Repository) string {
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branch := r.Branch
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if branch == "" {
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branch = DefaultBranch
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}
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return branch
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}
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