Made the FFI backend downloadable.

This commit is contained in:
2026-04-05 16:18:06 +02:00
parent f64be2f338
commit 10ce9ebc88
2 changed files with 162 additions and 77 deletions

View File

@@ -0,0 +1,153 @@
#lang racket/base
(require setup/dirs
net/sendurl
net/url
net/url-connect
racket/file
racket/system
racket/string
file/unzip
)
(provide download-racket-webview-qt
racket-webview-qt-version
racket-webview-qt-directory
racket-webview-qt-is-available?
racket-webview-qt-is-downloadable?
)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Version info of the version to download
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define rkt-qt-version-major 0)
(define rkt-qt-version-minor 1)
(define rkt-qt-version-patch 1)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Internal functions
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define rkt-qt-download-version (format "~a-~a-~a"
rkt-qt-version-major
rkt-qt-version-minor
rkt-qt-version-patch
))
(define rkt-qt-download-site "git.dijkewijk.nl")
(define rkt-qt-base-path "hans/racket-webview-qt/releases/download")
(define rkt-qt-os (system-type 'os*))
(define rkt-qt-arch (system-type 'arch))
(define rkt-download-url (format "https://~a/~a/~a/~a-~a.zip"
rkt-qt-download-site
rkt-qt-base-path
rkt-qt-download-version
rkt-qt-os
rkt-qt-arch))
(define install-path (build-path (find-system-path 'addon-dir) "racket-webview-qt"))
(define version-file (build-path install-path "version.txt"))
(define ffi-path (build-path install-path (format "~a-~a" rkt-qt-os rkt-qt-arch)))
(define (download-port link)
(let ((current-https-prot (current-https-protocol)))
(current-https-protocol 'secure)
(let* ((url (string->url link))
(port-in (get-pure-port url #:redirections 10)))
(current-https-protocol current-https-prot)
port-in)))
(define (do-download port-in port-out)
(letrec ((downloader-func (λ (count next-c len)
(let ((bytes (read-bytes 16384 port-in)))
(if (eof-object? bytes)
count
(let ((read-len (bytes-length bytes)))
(when (> read-len 0)
(set! count (+ count read-len))
(when (> count next-c)
(display (format "~a..." count))
(set! next-c (+ count len)))
(write-bytes bytes port-out)
)
(downloader-func count next-c len)))))
))
(let ((count (downloader-func 0 1000000 1000000)))
(displayln (format "~a downloaded" count))
(close-input-port port-in)
(close-output-port port-out)
count)
)
)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Provided functions
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define (racket-webview-qt-is-available?)
(if (file-exists? version-file)
(with-handlers ([exn:fail? (λ (e) #f)])
(let ((v (file->value version-file)))
(and
(= (car v) rkt-qt-version-major)
(= (cadr v) rkt-qt-version-minor)
(= (caddr v) rkt-qt-version-patch)))
)
#f))
(define (racket-webview-qt-directory)
(if (racket-webview-qt-is-available?)
(build-path (format "~a/~a-~a" install-path rkt-qt-os rkt-qt-arch))
#f))
(define (racket-webview-qt-version)
(if (racket-webview-qt-is-available?)
(file->value version-file)
#f))
(define (racket-webview-qt-is-downloadable?)
(let ((in (download-port rkt-download-url)))
(let ((d (input-port? in)))
(when d
(close-input-port in))
d)))
(define (download-racket-webview-qt)
(let ((in (download-port rkt-download-url)))
(unless (input-port? in)
(error (format "Cannot get a download port for '~a'" rkt-download-url)))
(unless (directory-exists? install-path)
(make-directory* install-path))
(let* ((file (build-path install-path "archive.zip"))
(out (open-output-file file #:exists 'replace))
)
(displayln (format "Downloading racket-webview-qt (~a)..." rkt-download-url))
(do-download in out)
(displayln (format "downloaded '~a'" file))
(when (directory-exists? ffi-path)
(displayln (format "Removing existing directory '~a'" ffi-path))
(delete-directory/files ffi-path))
(displayln "Unzipping...")
(let ((cd (current-directory)))
(current-directory install-path)
(unzip file)
(current-directory cd))
(displayln "Removing zip archive")
(delete-file file)
(displayln "Writing version")
(let ((version (list rkt-qt-version-major
rkt-qt-version-minor
rkt-qt-version-patch
)))
(let ((out (open-output-file version-file #:exists 'replace)))
(write version out)
(close-output-port out)))
(displayln "Version file written; ready for FFI integration")
#t
)
)
)

View File

@@ -13,6 +13,7 @@
racket/string
racket/path
"utils.rkt"
"racket-webview-downloader.rkt"
)
(provide rkt-wv
@@ -54,62 +55,14 @@
(define lib-type 'release)
(unless (racket-webview-qt-is-available?)
(unless (racket-webview-qt-is-downloadable?)
(error (format "There is no version of the racket-webview Qt backend available for OS '~a', Architectur '~a'"
(system-type 'os*)
(system-type 'arch))))
(download-racket-webview-qt))
(define os (system-type 'os*))
(define arch (system-type 'arch))
(define supported-os '(windows linux))
(unless (ormap (λ (o) (eq? os o)) supported-os)
(error (format "OS currently not supported: ~a. Supported: ~a." os supported-os)))
(define-runtime-path lib-dir "lib")
#|
(define libraries-to-preload
(cond
([eq? os 'windows]
'(Qt6Core.dll
Qt6Positioning.dll
Qt6Gui.dll
Qt6Widgets.dll
Qt6Svg.dll
Qt6Network.dll
Qt6OpenGL.dll
Qt6PrintSupport.dll
Qt6Qml.dll
Qt6QmlModels.dll
Qt6QmlWorkerScript.dll
Qt6QmlMeta.dll
Qt6Quick.dll
Qt6QuickWidgets.dll
Qt6WebChannel.dll
Qt6WebEngineCore.dll
Qt6WebEngineWidgets.dll
))
([eq? os 'linux]
'(libQt6XcbQpa
;libQt6WaylandClient
;libQt6EglFSDeviceIntegration
libQt6Core
libQt6Positioning
libQt6Gui
libQt6Widgets
libQt6Svg
libQt6Network
libQt6OpenGL
libQt6PrintSupport
libQt6Qml
libQt6QmlModels
libQt6QmlWorkerScript
libQt6QmlMeta
libQt6Quick
libQt6QuickWidgets
libQt6WebChannel
libQt6WebEngineCore
libQt6WebEngineWidgets
))
)
)
|#
(define ffi-library
(cond
@@ -118,7 +71,7 @@
)
)
(define os-lib-dir (build-path lib-dir (symbol->string os) (symbol->string arch)))
(define os-lib-dir (racket-webview-qt-directory))
(let ((files (directory-list os-lib-dir)))
(displayln (format "os-lib-dir: ~a" os-lib-dir))
@@ -127,7 +80,6 @@
(define (libname lib-symbol)
(build-path os-lib-dir (symbol->string lib-symbol)))
; c:\qt\6.10.2\msvc2022_64\bin\windeployqt.exe rktwebview_qt_test.exe
(define quiet-call #t)
(define rktwebview-prg (if (eq? os 'windows)
@@ -138,26 +90,6 @@
"QtWebEngineProcess.exe"
"QtWebEngineProcess"))
;;; Preload libraries
#|
(for-each (λ (lib-symbol)
(let* ((libn (if (list? lib-symbol) (car lib-symbol) lib-symbol))
(versions (if (list? lib-symbol) (cons (cadr lib-symbol) '(#f)) (list #f)))
(load-lib (if (list? lib-symbol)
(if (eq? (caddr lib-symbol) #f)
(symbol->string libn)
(libname libn))
(libname libn)))
)
;(displayln (format "loading ~a" load-lib))
(ffi-lib load-lib versions
;#:custodian (current-custodian))
)
)
libraries-to-preload)
|#
;;; Actual FFI integration
(define webview-lib-file (libname ffi-library))