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package main
import (
"encoding/json"
"errors"
"io"
"net/http"
"net/url"
"strings"
)
// isGitLabURL tests a string to determine if it is a well-structured GitLab URL.
func isGitLabURL(s string) (string, bool) {
if strings.HasPrefix(s, "gitlab.com/") {
s = "https://" + s
}
u, err := url.ParseRequestURI(s)
if err != nil {
return "", false
}
return u.String(), strings.ToLower(u.Host) == "gitlab.com"
}
// findGitLabREADME tries to find the correct README filename in a repository using GitLab API.
func findGitLabREADME(s string) (*source, error) {
sSplit := strings.Split(s, "/")
owner, repo := sSplit[3], sSplit[4]
projectPath := url.QueryEscape(owner + "/" + repo)
type readme struct {
ReadmeUrl string `json:"readme_url"`
}
apiURL := "https://gitlab.com/api/v4/projects/" + projectPath
// nolint:bodyclose
// it is closed on the caller
res, err := http.Get(apiURL)
if err != nil {
return nil, err
}
body, err := io.ReadAll(res.Body)
if err != nil {
return nil, err
}
var result readme
jsonErr := json.Unmarshal(body, &result)
if jsonErr != nil {
return nil, err
}
readmeRawUrl := strings.Replace(result.ReadmeUrl, "blob", "raw", -1)
if res.StatusCode == http.StatusOK {
// nolint:bodyclose
// it is closed on the caller
resp, err := http.Get(readmeRawUrl)
if err != nil {
return nil, err
}
if resp.StatusCode == http.StatusOK {
return &source{resp.Body, readmeRawUrl}, nil
}
}
return nil, errors.New("can't find README in GitLab repository")
}
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