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gitlab.go
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gitlab.go
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package getrelease
import (
"fmt"
"github.com/xanzy/go-gitlab"
"net/http"
"path"
"regexp"
)
const (
GitlabDefaultBaseURL = "https://gitlab.com/"
)
// GitlabClient is a client for gitlab
type gitlabClient struct {
httpClient *http.Client
rawClient *gitlab.Client
}
// NewOAuthGitlabClient provides connection with gitlab api through OAuth
func NewOAuthGitlabClient(client *http.Client, baseUrl, token string) (*gitlabClient, error) {
rawClient := gitlab.NewOAuthClient(client, token)
if err := rawClient.SetBaseURL(baseUrl); err != nil {
return nil, gitlabError(err)
}
return &gitlabClient{
httpClient: client,
rawClient: rawClient,
}, nil
}
// NewBasicAuthGitlabClient provides connection with gitlab api through basic authentication
func NewBasicAuthGitlabClient(client *http.Client, baseUrl, username, password string) (*gitlabClient, error) {
rawClient, err := gitlab.NewBasicAuthClient(client, baseUrl, username, password)
if err != nil {
return nil, gitlabError(err)
}
return &gitlabClient{
httpClient: client,
rawClient: rawClient,
}, nil
}
// NewPrivateTokenGitlabClient provides connection with gitlab api through private token
func NewPrivateTokenGitlabClient(client *http.Client, baseUrl, token string) (*gitlabClient, error) {
rawClient := gitlab.NewClient(client, token)
if err := rawClient.SetBaseURL(baseUrl); err != nil {
return nil, gitlabError(err)
}
return &gitlabClient{
httpClient: client,
rawClient: rawClient,
}, nil
}
// createPid creates PID from owner and repo
func (client *gitlabClient) createPid(owner, repo string) string {
return path.Clean(fmt.Sprintf("%s/%s", owner, repo))
}
// getAssetUrl is a generic url getter for github release assets
func (client *gitlabClient) getAssetUrl(release *gitlab.Release,
response *gitlab.Response, assetNameReg *regexp.Regexp) (*http.Client,
*string, *string, error) {
if response.StatusCode != 200 {
return nil, nil, nil, gitlabError(fmt.Errorf("invalid response status code: %s", response.Status))
}
for _, asset := range release.Assets.Links {
if assetNameReg.Match([]byte(asset.Name)) {
return client.httpClient, &asset.Name, &asset.URL, nil
}
}
return nil, nil, nil, gitlabError(fmt.Errorf("%s release asset not found", assetNameReg.String()))
}
// getTagAssetUrl fetches gitlab releases of the project and returns link to specified asset of tag release
func (client *gitlabClient) getTagAssetUrl(assetNameReg *regexp.Regexp, owner, repo,
tag string) (*http.Client, *string, *string, error) {
pid := client.createPid(owner, repo)
release, response, err := client.rawClient.Releases.GetRelease(pid, tag)
if response != nil && response.StatusCode == 403 {
return nil, nil, nil, gitlabError(fmt.Errorf("no release found for tag %s in %s", tag, pid))
}
if err != nil {
return nil, nil, nil, gitlabError(err)
}
return client.getAssetUrl(release, response, assetNameReg)
}
// getLatestAssetUrl fetches gitlab releases of the project and returns link to specified asset of latest release
func (client *gitlabClient) getLatestAssetUrl(assetNameReg *regexp.Regexp, owner,
repo string) (*http.Client, *string, *string, error) {
pid := client.createPid(owner, repo)
releases, response, err := client.rawClient.Releases.ListReleases(pid, nil)
if err != nil {
return nil, nil, nil, gitlabError(err)
}
if len(releases) <= 0 {
return nil, nil, nil, gitlabError(fmt.Errorf("no release found for %s", pid))
}
return client.getAssetUrl(releases[0], response, assetNameReg)
}