Add subcomand 'pulls create' (#144)

wordings

print pull URL

change title required mesage

inform User on push error

fix body

🚀

finish

impruve

fix help menue of pull create

refactor

Add pull-request command

Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Sandro Santilli <strk@kbt.io>
Reviewed-on: https://gitea.com/gitea/tea/pulls/144
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-by: lafriks <lafriks@noreply.gitea.io>

modules/git/branch.go

@@ -175,3 +175,17 @@ func (r TeaRepo) TeaFindBranchByName(branchName, repoURL string) (b *git_config.
 	}
 	return b, b.Validate()
 }
+
+// TeaGetCurrentBranchName return the name of the branch witch is currently active
+func (r TeaRepo) TeaGetCurrentBranchName() (string, error) {
+	localHead, err := r.Head()
+	if err != nil {
+		return "", err
+	}
+
+	if !localHead.Name().IsBranch() {
+		return "", fmt.Errorf("active ref is no branch")
+	}
+
+	return strings.TrimLeft(localHead.Name().String(), "refs/heads/"), nil
+}