feat(nsis): display "Space required" text for NSIS installer

packages/app-builder-lib/src/targets/nsis/Defines.ts

@@ -44,6 +44,10 @@ export type Defines = {
   APP_ARM64_HASH?: string
   APP_32_HASH?: string
 
+  APP_64_UNPACKED_SIZE?: string
+  APP_ARM64_UNPACKED_SIZE?: string
+  APP_32_UNPACKED_SIZE?: string
+
   REQUEST_EXECUTION_LEVEL?: PortableOptions["requestExecutionLevel"]
 
   UNPACK_DIR_NAME?: string | false

packages/app-builder-lib/src/targets/nsis/NsisTarget.ts

@@ -229,7 +229,7 @@ export class NsisTarget extends Target {
       defines.APP_BUILD_DIR = archs.get(archs.keys().next().value)
     } else {
       await BluebirdPromise.map(archs.keys(), async arch => {
-        const fileInfo = await this.packageHelper.packArch(arch, this)
+        const { fileInfo, unpackedSize } = await this.packageHelper.packArch(arch, this)
         const file = fileInfo.path
         const defineKey = arch === Arch.x64 ? "APP_64" : arch === Arch.arm64 ? "APP_ARM64" : "APP_32"
         defines[defineKey] = file
@@ -240,6 +240,10 @@ export class NsisTarget extends Target {
         // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
         const defineHashKey = `${defineKey}_HASH` as "APP_64_HASH" | "APP_ARM64_HASH" | "APP_32_HASH"
         defines[defineHashKey] = Buffer.from(fileInfo.sha512, "base64").toString("hex").toUpperCase()
+        // NSIS accepts size in KiloBytes and supports only whole numbers
+        // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
+        const defineUnpackedSizeKey = `${defineKey}_UNPACKED_SIZE` as "APP_64_UNPACKED_SIZE" | "APP_ARM64_UNPACKED_SIZE" | "APP_32_UNPACKED_SIZE"
+        defines[defineUnpackedSizeKey] = Math.ceil(unpackedSize / 1024).toString()
 
         if (this.isWebInstaller) {
           await packager.dispatchArtifactCreated(file, this, arch)

packages/app-builder-lib/src/targets/nsis/nsisUtil.ts

@@ -1,7 +1,7 @@
 import { Arch, log } from "builder-util"
 import { PackageFileInfo } from "builder-util-runtime"
 import { getBinFromUrl, getBinFromCustomLoc } from "../../binDownload"
-import { copyFile } from "builder-util/out/fs"
+import { copyFile, dirSize } from "builder-util/out/fs"
 import * as path from "path"
 import { getTemplatePath } from "../../util/pathManager"
 import { NsisTarget } from "./NsisTarget"
@@ -39,30 +39,44 @@ export const NSIS_PATH = () => {
   })
 }
 
+export interface PackArchResult {
+  fileInfo: PackageFileInfo
+  unpackedSize: number
+}
+
 export class AppPackageHelper {
-  private readonly archToFileInfo = new Map<Arch, Promise<PackageFileInfo>>()
+  private readonly archToResult = new Map<Arch, Promise<PackArchResult>>()
   private readonly infoToIsDelete = new Map<PackageFileInfo, boolean>()
 
   /** @private */
   refCount = 0
 
   constructor(private readonly elevateHelper: CopyElevateHelper) {}
 
-  async packArch(arch: Arch, target: NsisTarget): Promise<PackageFileInfo> {
-    let infoPromise = this.archToFileInfo.get(arch)
-    if (infoPromise == null) {
+  async packArch(arch: Arch, target: NsisTarget): Promise<PackArchResult> {
+    let resultPromise = this.archToResult.get(arch)
+    if (resultPromise == null) {
       const appOutDir = target.archs.get(arch)!
-      infoPromise = this.elevateHelper.copy(appOutDir, target).then(() => target.buildAppPackage(appOutDir, arch))
-      this.archToFileInfo.set(arch, infoPromise)
+      resultPromise = this.elevateHelper
+        .copy(appOutDir, target)
+        .then(() => dirSize(appOutDir))
+        .then(unpackedSize =>
+          target.buildAppPackage(appOutDir, arch).then(fileInfo => ({
+            fileInfo,
+            unpackedSize,
+          }))
+        )
+      this.archToResult.set(arch, resultPromise)
     }
 
-    const info = await infoPromise
+    const result = await resultPromise
+    const { fileInfo: info } = result
     if (target.isWebInstaller) {
       this.infoToIsDelete.set(info, false)
     } else if (!this.infoToIsDelete.has(info)) {
       this.infoToIsDelete.set(info, true)
     }
-    return info
+    return result
   }
 
   async finishBuild(): Promise<any> {

packages/app-builder-lib/templates/nsis/common.nsh

@@ -3,7 +3,6 @@
 
 BrandingText "${PRODUCT_NAME} ${VERSION}"
 ShowInstDetails nevershow
-SpaceTexts none
 !ifdef BUILD_UNINSTALLER
   ShowUninstDetails nevershow
 !endif
@@ -13,6 +12,32 @@ Name "${PRODUCT_NAME}"
 !define APP_EXECUTABLE_FILENAME "${PRODUCT_FILENAME}.exe"
 !define UNINSTALL_FILENAME "Uninstall ${PRODUCT_FILENAME}.exe"
 
+!macro setSpaceRequired SECTION_ID
+  !ifdef APP_64_UNPACKED_SIZE
+    !ifdef APP_32_UNPACKED_SIZE
+      !ifdef APP_ARM64_UNPACKED_SIZE
+        ${if} ${IsNativeARM64}
+          SectionSetSize ${SECTION_ID} ${APP_ARM64_UNPACKED_SIZE}
+        ${elseif} ${IsNativeAMD64}
+          SectionSetSize ${SECTION_ID} ${APP_64_UNPACKED_SIZE}
+        ${else}
+          SectionSetSize ${SECTION_ID} ${APP_32_UNPACKED_SIZE}
+        ${endif}
+      !else
+        ${if} ${RunningX64}
+          SectionSetSize ${SECTION_ID} ${APP_64_UNPACKED_SIZE}
+        ${else}
+          SectionSetSize ${SECTION_ID} ${APP_32_UNPACKED_SIZE}
+        ${endif}
+      !endif
+    !else
+      SectionSetSize ${SECTION_ID} ${APP_64_UNPACKED_SIZE}
+    !endif
+  !else
+    SectionSetSize ${SECTION_ID} ${APP_32_UNPACKED_SIZE}
+  !endif
+!macroend
+
 !macro check64BitAndSetRegView
   # https://github.com/electron-userland/electron-builder/issues/2420
   ${If} ${IsWin2000}
@@ -107,7 +132,7 @@ Name "${PRODUCT_NAME}"
     LogSet ${SETTING}
   !endif
 !macroend
- 
+
 !define LogText "!insertmacro LogTextMacroEB"
 !macro LogTextMacroEB INPUT_TEXT
   !ifdef ENABLE_LOGGING_ELECTRON_BUILDER

packages/app-builder-lib/templates/nsis/installer.nsi

@@ -39,50 +39,11 @@ Var oldMenuDirectory
   !insertmacro customHeader
 !endif
 
-Function .onInit
-  SetOutPath $INSTDIR
-  ${LogSet} on
-
-  !ifmacrodef preInit
-    !insertmacro preInit
-  !endif
-
-  !ifdef DISPLAY_LANG_SELECTOR
-    !insertmacro MUI_LANGDLL_DISPLAY
-  !endif
-
-  !ifdef BUILD_UNINSTALLER
-    WriteUninstaller "${UNINSTALLER_OUT_FILE}"
-    !insertmacro quitSuccess
-  !else
-    !insertmacro check64BitAndSetRegView
-
-    !ifdef ONE_CLICK
-      !insertmacro ALLOW_ONLY_ONE_INSTALLER_INSTANCE
-    !else
-      ${IfNot} ${UAC_IsInnerInstance}
-        !insertmacro ALLOW_ONLY_ONE_INSTALLER_INSTANCE
-      ${EndIf}
-    !endif
-
-    !insertmacro initMultiUser
-
-    !ifmacrodef customInit
-      !insertmacro customInit
-    !endif
-
-    !ifmacrodef addLicenseFiles
-      InitPluginsDir
-      !insertmacro addLicenseFiles
-    !endif
-  !endif
-FunctionEnd
-
 !ifndef BUILD_UNINSTALLER
   !include "installUtil.nsh"
 !endif
 
-Section "install"
+Section "install" INSTALL_SECTION_ID
   !ifndef BUILD_UNINSTALLER
     # If we're running a silent upgrade of a per-machine installation, elevate so extracting the new app will succeed.
     # For a non-silent install, the elevation will be triggered when the install mode is selected in the UI,
@@ -116,4 +77,45 @@ SectionEnd
 
 !ifdef BUILD_UNINSTALLER
   !include "uninstaller.nsh"
-!endif
+!endif
+
+Function .onInit
+  !insertmacro setSpaceRequired ${INSTALL_SECTION_ID}
+
+  SetOutPath $INSTDIR
+  ${LogSet} on
+
+  !ifmacrodef preInit
+    !insertmacro preInit
+  !endif
+
+  !ifdef DISPLAY_LANG_SELECTOR
+    !insertmacro MUI_LANGDLL_DISPLAY
+  !endif
+
+  !ifdef BUILD_UNINSTALLER
+    WriteUninstaller "${UNINSTALLER_OUT_FILE}"
+    !insertmacro quitSuccess
+  !else
+    !insertmacro check64BitAndSetRegView
+
+    !ifdef ONE_CLICK
+      !insertmacro ALLOW_ONLY_ONE_INSTALLER_INSTANCE
+    !else
+      ${IfNot} ${UAC_IsInnerInstance}
+        !insertmacro ALLOW_ONLY_ONE_INSTALLER_INSTANCE
+      ${EndIf}
+    !endif
+
+    !insertmacro initMultiUser
+
+    !ifmacrodef customInit
+      !insertmacro customInit
+    !endif
+
+    !ifmacrodef addLicenseFiles
+      InitPluginsDir
+      !insertmacro addLicenseFiles
+    !endif
+  !endif
+FunctionEnd

packages/builder-util/src/fs.ts

@@ -306,6 +306,25 @@ export function copyDir(src: string, destination: string, options: CopyDirOption
   }).then(() => BluebirdPromise.map(links, it => symlink(it.link, it.file, symlinkType), CONCURRENCY))
 }
 
+export async function dirSize(dirPath: string): Promise<number> {
+  const entries = await readdir(dirPath, { withFileTypes: true })
+
+  const entrySizes = entries.map(async entry => {
+    const entryPath = path.join(dirPath, entry.name)
+
+    if (entry.isDirectory()) return await dirSize(entryPath)
+
+    if (entry.isFile()) {
+      const { size } = await stat(entryPath)
+      return size
+    }
+
+    return 0
+  })
+
+  return (await Promise.all(entrySizes)).reduce((entrySize, totalSize) => entrySize + totalSize, 0)
+}
+
 // eslint-disable-next-line @typescript-eslint/no-unused-vars
 export const DO_NOT_USE_HARD_LINKS = (file: string) => false
 // eslint-disable-next-line @typescript-eslint/no-unused-vars