Hide --pptx-editable in the container image

Currently a container image does not have included LibreOffice Impress.

src/config.ts

@@ -14,7 +14,7 @@ import { error, isError } from './error'
 import { TemplateOption } from './templates'
 import { Theme, ThemeSet } from './theme'
 import { isStandaloneBinary } from './utils/binary'
-import { isOfficialDockerImage } from './utils/container'
+import { isOfficialContainerImage } from './utils/container'
 
 type Overwrite<T, U> = Omit<T, Extract<keyof T, keyof U>> & U
 
@@ -214,7 +214,7 @@ export class MarpCLIConfig {
     const preview = (() => {
       const p = this.args.preview ?? this.conf.preview ?? false
 
-      if (p && isOfficialDockerImage()) {
+      if (p && isOfficialContainerImage()) {
         warn(
           `Preview window cannot show within an official docker image. Preview option was ignored.`
         )

src/marp-cli.ts

@@ -9,7 +9,7 @@ import { File, FileType } from './file'
 import { Preview, fileToURI } from './preview'
 import { Server } from './server'
 import templates from './templates'
-import { isOfficialDockerImage } from './utils/container'
+import { isOfficialContainerImage } from './utils/container'
 import { createYargs } from './utils/yargs'
 import version from './version'
 import watcher, { Watcher, notifier } from './watcher'
@@ -199,7 +199,7 @@ export const marpCli = async (
         preview: {
           alias: 'p',
           describe: 'Open preview window',
-          hidden: isOfficialDockerImage(),
+          hidden: isOfficialContainerImage(),
           group: OptionGroup.Basic,
           type: 'boolean',
         },
@@ -226,6 +226,7 @@ export const marpCli = async (
           describe:
             '[EXPERIMENTAL] Generate editable PPTX when converting to PPTX',
           group: OptionGroup.Converter,
+          hidden: isOfficialContainerImage(), // Container image does not include LibreOffice Impress
           type: 'boolean',
         },
         notes: {

src/utils/container.ts

@@ -1,6 +1,7 @@
 import _isInsideContainer from 'is-inside-container'
 
 export const isInsideContainer = () =>
-  isOfficialDockerImage() || (_isInsideContainer() && !process.env.MARP_TEST_CI)
+  isOfficialContainerImage() ||
+  (_isInsideContainer() && !process.env.MARP_TEST_CI)
 
-export const isOfficialDockerImage = () => !!process.env.MARP_USER
+export const isOfficialContainerImage = () => !!process.env.MARP_USER

src/utils/tmp.ts

@@ -2,15 +2,15 @@ import os from 'node:os'
 import path from 'node:path'
 import { promisify } from 'node:util'
 import { tmpName } from 'tmp'
-import { isOfficialDockerImage } from './container'
+import { isOfficialContainerImage } from './container'
 
 const tmpNamePromise = promisify(tmpName)
 
 // Snapd Chromium cannot access from sandbox container to user-land `/tmp`
 // directory so always create tmp file to home directory if in Linux.
 // (Except an official docker image)
 const shouldPutTmpFileToHome =
-  process.platform === 'linux' && !isOfficialDockerImage()
+  process.platform === 'linux' && !isOfficialContainerImage()
 
 export const generateTmpName = async (extension?: `.${string}`) => {
   let tmp: string = await tmpNamePromise({ postfix: extension })