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fetch.go
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package shared
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"net/http"
"reflect"
"strings"
"time"
"github.com/cli/cli/v2/api"
"github.com/cli/cli/v2/internal/ghinstance"
"github.com/cli/cli/v2/internal/ghrepo"
)
var ReleaseFields = []string{
"url",
"apiUrl",
"uploadUrl",
"tarballUrl",
"zipballUrl",
"id",
"tagName",
"name",
"body",
"isDraft",
"isPrerelease",
"createdAt",
"publishedAt",
"targetCommitish",
"author",
"assets",
}
type Release struct {
ID string `json:"node_id"`
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"`
TargetCommitish string `json:"target_commitish"`
APIURL string `json:"url"`
UploadURL string `json:"upload_url"`
TarballURL string `json:"tarball_url"`
ZipballURL string `json:"zipball_url"`
URL string `json:"html_url"`
Assets []ReleaseAsset
Author struct {
ID string `json:"node_id"`
Login string `json:"login"`
}
}
type ReleaseAsset struct {
ID string `json:"node_id"`
Name string
Label string
Size int64
State string
APIURL string `json:"url"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
DownloadCount int `json:"download_count"`
ContentType string `json:"content_type"`
BrowserDownloadURL string `json:"browser_download_url"`
}
func (rel *Release) ExportData(fields []string) *map[string]interface{} {
v := reflect.ValueOf(rel).Elem()
fieldByName := func(v reflect.Value, field string) reflect.Value {
return v.FieldByNameFunc(func(s string) bool {
return strings.EqualFold(field, s)
})
}
data := map[string]interface{}{}
for _, f := range fields {
switch f {
case "author":
data[f] = map[string]interface{}{
"id": rel.Author.ID,
"login": rel.Author.Login,
}
case "assets":
assets := make([]interface{}, 0, len(rel.Assets))
for _, a := range rel.Assets {
assets = append(assets, map[string]interface{}{
"url": a.BrowserDownloadURL,
"apiUrl": a.APIURL,
"id": a.ID,
"name": a.Name,
"label": a.Label,
"size": a.Size,
"state": a.State,
"createdAt": a.CreatedAt,
"updatedAt": a.UpdatedAt,
"downloadCount": a.DownloadCount,
"contentType": a.ContentType,
})
}
data[f] = assets
default:
sf := fieldByName(v, f)
data[f] = sf.Interface()
}
}
return &data
}
// 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 {
return FindDraftRelease(httpClient, baseRepo, tagName)
}
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
}
}
//nolint:staticcheck
break
}
return nil, errors.New("release not found")
}