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|
package gitlab
import (
"bufio"
"fmt"
"net/url"
"os"
"regexp"
"strconv"
"strings"
"github.com/pkg/errors"
"github.com/xanzy/go-gitlab"
"github.com/MichaelMure/git-bug/bridge/core"
"github.com/MichaelMure/git-bug/repository"
)
var (
ErrBadProjectURL = errors.New("bad project url")
)
func (*Gitlab) Configure(repo repository.RepoCommon, params core.BridgeParams) (core.Configuration, error) {
if params.Project != "" {
fmt.Println("warning: --project is ineffective for a gitlab bridge")
}
if params.Owner != "" {
fmt.Println("warning: --owner is ineffective for a gitlab bridge")
}
conf := make(core.Configuration)
var err error
var url string
var token string
// get project url
if params.URL != "" {
url = params.URL
} else {
// remote suggestions
remotes, err := repo.GetRemotes()
if err != nil {
return nil, errors.Wrap(err, "getting remotes")
}
// terminal prompt
url, err = promptURL(remotes)
if err != nil {
return nil, errors.Wrap(err, "url prompt")
}
}
// get user token
if params.Token != "" {
token = params.Token
} else {
token, err = promptToken()
if err != nil {
return nil, errors.Wrap(err, "token prompt")
}
}
var ok bool
// validate project url and get its ID
ok, id, err := validateProjectURL(url, token)
if err != nil {
return nil, errors.Wrap(err, "project validation")
}
if !ok {
return nil, fmt.Errorf("invalid project id or incorrect token scope")
}
conf[keyProjectID] = strconv.Itoa(id)
conf[keyToken] = token
conf[keyTarget] = target
return conf, nil
}
func (*Gitlab) ValidateConfig(conf core.Configuration) error {
if v, ok := conf[keyTarget]; !ok {
return fmt.Errorf("missing %s key", keyTarget)
} else if v != target {
return fmt.Errorf("unexpected target name: %v", v)
}
if _, ok := conf[keyToken]; !ok {
return fmt.Errorf("missing %s key", keyToken)
}
if _, ok := conf[keyProjectID]; !ok {
return fmt.Errorf("missing %s key", keyProjectID)
}
return nil
}
func promptToken() (string, error) {
fmt.Println("You can generate a new token by visiting https://gitlab.com/profile/personal_access_tokens.")
fmt.Println("Choose 'Create personal access token' and set the necessary access scope for your repository.")
fmt.Println()
fmt.Println("'api' access scope: to be able to make api calls")
fmt.Println()
re, err := regexp.Compile(`^[a-zA-Z0-9\-]{20}`)
if err != nil {
panic("regexp compile:" + err.Error())
}
for {
fmt.Print("Enter token: ")
line, err := bufio.NewReader(os.Stdin).ReadString('\n')
if err != nil {
return "", err
}
token := strings.TrimRight(line, "\n")
if re.MatchString(token) {
return token, nil
}
fmt.Println("token format is invalid")
}
}
func promptURL(remotes map[string]string) (string, error) {
validRemotes := getValidGitlabRemoteURLs(remotes)
if len(validRemotes) > 0 {
for {
fmt.Println("\nDetected projects:")
// print valid remote gitlab urls
for i, remote := range validRemotes {
fmt.Printf("[%d]: %v\n", i+1, remote)
}
fmt.Printf("\n[0]: Another project\n\n")
fmt.Printf("Select option: ")
line, err := bufio.NewReader(os.Stdin).ReadString('\n')
if err != nil {
return "", err
}
line = strings.TrimRight(line, "\n")
index, err := strconv.Atoi(line)
if err != nil || (index < 0 && index > len(validRemotes)) {
fmt.Println("invalid input")
continue
}
// if user want to enter another project url break this loop
if index == 0 {
break
}
return validRemotes[index-1], nil
}
}
// manually enter gitlab url
for {
fmt.Print("Gitlab project URL: ")
line, err := bufio.NewReader(os.Stdin).ReadString('\n')
if err != nil {
return "", err
}
url := strings.TrimRight(line, "\n")
if line == "" {
fmt.Println("URL is empty")
continue
}
return url, nil
}
}
func getProjectPath(projectUrl string) (string, error) {
cleanUrl := strings.TrimSuffix(projectUrl, ".git")
cleanUrl = strings.Replace(cleanUrl, "git@", "https://", 1)
objectUrl, err := url.Parse(cleanUrl)
if err != nil {
return "", ErrBadProjectURL
}
return objectUrl.Path[1:], nil
}
func getValidGitlabRemoteURLs(remotes map[string]string) []string {
urls := make([]string, 0, len(remotes))
for _, u := range remotes {
path, err := getProjectPath(u)
if err != nil {
continue
}
urls = append(urls, fmt.Sprintf("%s%s", "gitlab.com", path))
}
return urls
}
func validateProjectURL(url, token string) (bool, int, error) {
client := buildClient(token)
projectPath, err := getProjectPath(url)
if err != nil {
return false, 0, err
}
project, _, err := client.Projects.GetProject(projectPath, &gitlab.GetProjectOptions{})
if err != nil {
return false, 0, err
}
return true, project.ID, nil
}
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