Includes mmctl into the mono-repo (#23091)

* Includes mmctl into the mono-repo

* Update to use the new public module paths

* Adds docs check to the mmctl CI

* Fix public utils import path

* Tidy up modules

* Fix linter

* Update CI tasks to use the new file structure

* Update CI references

server/cmd/mmctl/commands/utils.go

@@ -0,0 +1,113 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+package commands
+
+import (
+	"archive/zip"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"github.com/mattermost/mattermost-server/server/public/model"
+	"github.com/pkg/errors"
+)
+
+func checkInteractiveTerminal() error {
+	fileInfo, err := os.Stdout.Stat()
+	if err != nil {
+		return err
+	}
+
+	if (fileInfo.Mode() & os.ModeCharDevice) == 0 {
+		return errors.New("this is not an interactive shell")
+	}
+
+	return nil
+}
+
+func zipDir(zipPath, dir string) error {
+	zipFile, err := os.Create(zipPath)
+	if err != nil {
+		return fmt.Errorf("cannot create file %q: %w", zipPath, err)
+	}
+	defer zipFile.Close()
+
+	zipWriter := zip.NewWriter(zipFile)
+	defer zipWriter.Close()
+
+	if err := addToZip(zipWriter, dir, "."); err != nil {
+		return fmt.Errorf("could not add %q to zip: %w", dir, err)
+	}
+
+	return nil
+}
+
+func addToZip(zipWriter *zip.Writer, basedir, path string) error {
+	dirPath := filepath.Join(basedir, path)
+	fileInfos, err := ioutil.ReadDir(dirPath)
+	if err != nil {
+		return fmt.Errorf("cannot read directory %q: %w", dirPath, err)
+	}
+
+	for _, fileInfo := range fileInfos {
+		filePath := filepath.Join(path, fileInfo.Name())
+		if fileInfo.IsDir() {
+			filePath += "/"
+		}
+		header, err := zip.FileInfoHeader(fileInfo)
+		if err != nil {
+			return fmt.Errorf("cannot create zip file info header for %q path: %w", filePath, err)
+		}
+		header.Name = filePath
+		header.Method = zip.Deflate
+
+		w, err := zipWriter.CreateHeader(header)
+		if err != nil {
+			return fmt.Errorf("cannot create header for path %q: %w", filePath, err)
+		}
+
+		if fileInfo.IsDir() {
+			if err = addToZip(zipWriter, basedir, filePath); err != nil {
+				return err
+			}
+			continue
+		}
+
+		file, err := os.Open(filepath.Join(dirPath, fileInfo.Name()))
+		if err != nil {
+			return fmt.Errorf("cannot open file %q: %w", filePath, err)
+		}
+
+		_, err = io.Copy(w, file)
+		file.Close()
+		if err != nil {
+			return fmt.Errorf("cannot zip file contents for file %q: %w", filePath, err)
+		}
+	}
+
+	return nil
+}
+
+func getPages[T any](fn func(page, numPerPage int, etag string) ([]T, *model.Response, error), perPage int) ([]T, error) {
+	var (
+		results []T
+		etag    string
+	)
+
+	for i := 0; ; i++ {
+		result, resp, err := fn(i, perPage, etag)
+		if err != nil {
+			return results, err
+		}
+		if len(result) == 0 {
+			break
+		}
+
+		results = append(results, result...)
+		etag = resp.Etag
+	}
+	return results, nil
+}