Add support to print the version list of target package (#131)

Author: LinuxSuRen

cmd/get.go

@@ -56,6 +56,10 @@ Thanks to https://github.com/hunshcn/gh-proxy`)
 	flags.StringVarP(&opt.Arch, "arch", "", runtime.GOARCH, "The arch of target binary file")
 	flags.BoolVarP(&opt.PrintSchema, "print-schema", "", false,
 		"Print the schema of HDConfig if the flag is true without other function")
+	flags.BoolVarP(&opt.PrintVersion, "print-version", "", false,
+		"Print the version list")
+	flags.IntVarP(&opt.PrintVersionCount, "print-version-count", "", 20,
+		"The number of the version list")
 
 	_ = cmd.RegisterFlagCompletionFunc("proxy-github", ArrayCompletion("gh.api.99988866.xyz",
 		"ghproxy.com", "mirror.ghproxy.com"))
@@ -80,9 +84,11 @@ type downloadOption struct {
 	Arch     string
 	OS       string
 
-	Thread      int
-	KeepPart    bool
-	PrintSchema bool
+	Thread            int
+	KeepPart          bool
+	PrintSchema       bool
+	PrintVersion      bool
+	PrintVersionCount int
 
 	// inner fields
 	name    string
@@ -162,6 +168,18 @@ func (o *downloadOption) runE(cmd *cobra.Command, args []string) (err error) {
 		return
 	}
 
+	if o.PrintVersion {
+		client := &pkg.ReleaseClient{}
+		client.Init()
+		var list []pkg.ReleaseAsset
+		if list, err = client.ListReleases(o.org, o.repo, o.PrintVersionCount); err == nil {
+			for _, item := range list {
+				cmd.Println(item.TagName)
+			}
+		}
+		return
+	}
+
 	cmd.Printf("start to download from %s\n", o.URL)
 	if o.Thread <= 1 {
 		err = pkg.DownloadWithContinue(o.URL, o.Output, o.ContinueAt, -1, 0, o.ShowProgress)

pkg/release.go

@@ -10,6 +10,8 @@ type ReleaseClient struct {
 	Client *github.Client
 	Org    string
 	Repo   string
+
+	ctx context.Context
 }
 
 // ReleaseAsset is the asset from GitHub release
@@ -21,6 +23,25 @@ type ReleaseAsset struct {
 // Init init the GitHub client
 func (g *ReleaseClient) Init() {
 	g.Client = github.NewClient(nil)
+	g.ctx = context.TODO()
+}
+
+// ListReleases returns the release list
+func (g *ReleaseClient) ListReleases(owner, repo string, count int) (list []ReleaseAsset, err error) {
+	opt := &github.ListOptions{
+		PerPage: count,
+	}
+
+	var releaseList []*github.RepositoryRelease
+	if releaseList, _, err = g.Client.Repositories.ListReleases(g.ctx, owner, repo, opt); err == nil {
+		for i := range releaseList {
+			list = append(list, ReleaseAsset{
+				TagName: releaseList[i].GetTagName(),
+				Body:    releaseList[i].GetBody(),
+			})
+		}
+	}
+	return
 }
 
 // GetLatestJCLIAsset returns the latest jcli asset
@@ -75,19 +96,13 @@ func (g *ReleaseClient) GetJCLIAsset(tagName string) (*ReleaseAsset, error) {
 
 // GetReleaseAssetByTagName returns the release asset by tag name
 func (g *ReleaseClient) GetReleaseAssetByTagName(owner, repo, tagName string) (ra *ReleaseAsset, err error) {
-	ctx := context.Background()
-
-	opt := &github.ListOptions{
-		PerPage: 99999,
-	}
-
-	var releaseList []*github.RepositoryRelease
-	if releaseList, _, err = g.Client.Repositories.ListReleases(ctx, owner, repo, opt); err == nil {
-		for _, item := range releaseList {
-			if item.GetTagName() == tagName {
+	var list []ReleaseAsset
+	if list, err = g.ListReleases(owner, repo, 99999); err == nil {
+		for _, item := range list {
+			if item.TagName == tagName {
 				ra = &ReleaseAsset{
-					TagName: item.GetTagName(),
-					Body:    item.GetBody(),
+					TagName: item.TagName,
+					Body:    item.Body,
 				}
 				break
 			}