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package shared
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"net/http"
"time"
"github.com/cli/cli/api"
"github.com/cli/cli/internal/ghinstance"
"github.com/cli/cli/internal/ghrepo"
)
type Release struct {
TagName string `json:"tag_name"`
Name string `json:"name"`
Body string `json:"body"`
IsDraft bool `json:"draft"`
IsPrerelease bool `json:"prerelease"`
CreatedAt time.Time `json:"created_at"`
PublishedAt time.Time `json:"published_at"`
APIURL string `json:"url"`
UploadURL string `json:"upload_url"`
HTMLURL string `json:"html_url"`
Assets []ReleaseAsset
Author struct {
Login string
}
}
type ReleaseAsset struct {
Name string
Size int64
State string
APIURL string `json:"url"`
}
// FetchRelease finds a repository release by its tagName.
func FetchRelease(httpClient *http.Client, baseRepo ghrepo.Interface, tagName string) (*Release, error) {
path := fmt.Sprintf("repos/%s/%s/releases/tags/%s", baseRepo.RepoOwner(), baseRepo.RepoName(), tagName)
url := ghinstance.RESTPrefix(baseRepo.RepoHost()) + path
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return nil, err
}
resp, err := httpClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode == 404 {
if canPush, err := api.CanPushToRepo(httpClient, baseRepo); err == nil && canPush {
return FindDraftRelease(httpClient, baseRepo, tagName)
} else if err != nil {
return nil, err
}
}
if resp.StatusCode > 299 {
return nil, api.HandleHTTPError(resp)
}
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var release Release
err = json.Unmarshal(b, &release)
if err != nil {
return nil, err
}
return &release, nil
}
// FetchLatestRelease finds the latest published release for a repository.
func FetchLatestRelease(httpClient *http.Client, baseRepo ghrepo.Interface) (*Release, error) {
path := fmt.Sprintf("repos/%s/%s/releases/latest", baseRepo.RepoOwner(), baseRepo.RepoName())
url := ghinstance.RESTPrefix(baseRepo.RepoHost()) + path
req, err := http.NewRequest("GET", url, nil)
if err != nil {
return nil, err
}
resp, err := httpClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode > 299 {
return nil, api.HandleHTTPError(resp)
}
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var release Release
err = json.Unmarshal(b, &release)
if err != nil {
return nil, err
}
return &release, nil
}
// FindDraftRelease returns the latest draft release that matches tagName.
func FindDraftRelease(httpClient *http.Client, baseRepo ghrepo.Interface, tagName string) (*Release, error) {
path := fmt.Sprintf("repos/%s/%s/releases", baseRepo.RepoOwner(), baseRepo.RepoName())
url := ghinstance.RESTPrefix(baseRepo.RepoHost()) + path
perPage := 100
page := 1
for {
req, err := http.NewRequest("GET", fmt.Sprintf("%s?per_page=%d&page=%d", url, perPage, page), nil)
if err != nil {
return nil, err
}
resp, err := httpClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
if resp.StatusCode > 299 {
return nil, api.HandleHTTPError(resp)
}
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
var releases []Release
err = json.Unmarshal(b, &releases)
if err != nil {
return nil, err
}
for _, r := range releases {
if r.IsDraft && r.TagName == tagName {
return &r, nil
}
}
if len(releases) < perPage {
break
}
page++
}
return nil, errors.New("release not found")
}