fix nil pointer deref in provider code when there are network errors

Signed-off-by: roi.kramer <[email protected]>

pkg/git/provider_gitea.go

@@ -72,7 +72,7 @@ func (g *gitea) CreateRepository(_ context.Context, orgRepo string) (defaultBran
 	}
 
 	if err != nil {
-		if res.StatusCode == 404 {
+		if res != nil && res.StatusCode == 404 {
 			return "", fmt.Errorf("owner %s not found: %w", opts.Owner, err)
 		}
 
@@ -90,7 +90,7 @@ func (g *gitea) GetDefaultBranch(_ context.Context, orgRepo string) (string, err
 
 	r, res, err := g.client.GetRepo(opts.Owner, opts.Name)
 	if err != nil {
-		if res.StatusCode == 404 {
+		if res != nil && res.StatusCode == 404 {
 			return "", fmt.Errorf("owner %s not found: %w", opts.Owner, err)
 		}
 
@@ -114,7 +114,7 @@ func (g *gitea) GetAuthor(_ context.Context) (username, email string, err error)
 func (g *gitea) getAuthenticatedUser() (*gt.User, error) {
 	authUser, res, err := g.client.GetMyUserInfo()
 	if err != nil {
-		if res.StatusCode == 401 {
+		if res != nil && res.StatusCode == 401 {
 			return nil, ErrAuthenticationFailed(err)
 		}
 

pkg/git/provider_github.go

@@ -33,13 +33,13 @@ func newGithub(opts *ProviderOptions) (Provider, error) {
 		if err != nil {
 			return nil, err
 		}
-	
+
 		transport := &gh.BasicAuthTransport{
-			Username: opts.Auth.Username,
-			Password: opts.Auth.Password,
+			Username:  opts.Auth.Username,
+			Password:  opts.Auth.Password,
 			Transport: underlyingTransport,
 		}
-		
+
 		hc.Transport = transport
 	}
 
@@ -83,7 +83,7 @@ func (g *github) CreateRepository(ctx context.Context, orgRepo string) (defaultB
 		Private: gh.Bool(opts.Private),
 	})
 	if err != nil {
-		if res.StatusCode == 404 {
+		if res != nil && res.StatusCode == 404 {
 			return "", fmt.Errorf("owner %s not found: %w", opts.Owner, err)
 		}
 
@@ -101,7 +101,7 @@ func (g *github) GetDefaultBranch(ctx context.Context, orgRepo string) (string,
 
 	r, res, err := g.Repositories.Get(ctx, opts.Owner, opts.Name)
 	if err != nil {
-		if res.StatusCode == 404 {
+		if res != nil && res.StatusCode == 404 {
 			return "", fmt.Errorf("owner %s not found: %w", opts.Owner, err)
 		}
 
@@ -137,7 +137,7 @@ func (g *github) GetAuthor(ctx context.Context) (username, email string, err err
 func (g *github) getAuthenticatedUser(ctx context.Context) (*gh.User, error) {
 	authUser, res, err := g.Users.Get(ctx, "")
 	if err != nil {
-		if res.StatusCode == 401 {
+		if res != nil && res.StatusCode == 401 {
 			return nil, ErrAuthenticationFailed(err)
 		}
 

pkg/git/provider_gitlab.go

@@ -106,7 +106,7 @@ func (g *gitlab) GetDefaultBranch(ctx context.Context, orgRepo string) (string,
 
 	p, res, err := g.client.GetProject(orgRepo, &gl.GetProjectOptions{})
 	if err != nil {
-		if res.StatusCode == 404 {
+		if res != nil && res.StatusCode == 404 {
 			return "", fmt.Errorf("owner \"%s\" not found: %w", opts.Owner, err)
 		}
 
@@ -138,7 +138,7 @@ func (g *gitlab) GetAuthor(_ context.Context) (username, email string, err error
 func (g *gitlab) getAuthenticatedUser() (*gl.User, error) {
 	authUser, res, err := g.client.CurrentUser()
 	if err != nil {
-		if res.StatusCode == 401 {
+		if res != nil && res.StatusCode == 401 {
 			return nil, ErrAuthenticationFailed(err)
 		}
 
@@ -150,7 +150,6 @@ func (g *gitlab) getAuthenticatedUser() (*gl.User, error) {
 
 func (g *gitlab) getGroupIdByName(groupName string) (int, error) {
 	group, _, err := g.client.GetGroup(groupName, &gl.GetGroupOptions{})
-
 	if err != nil {
 		return 0, err
 	}