Install a custom Z3 build on Apple Silicon Macs (emina#254)

* Revert emina#145 The fix was shipped in Racket v7.7, and our minimum version is now v8.1, so there's no longer a need for this. * Install a custom Z3 build on Apple Silicon Macs The Z3 version we use predates aarch64 Macs, so there's no pre-packaged release available. The x86 version of Z3 works if the user has Rosetta installed, but there's no obvious way to detect that, and it fails in weird/silent ways if Rosetta isn't available. So instead, let's install a custom Z3 4.8.8 aarch64 build in this case. We can remove it whenever we go past Z3 4.8.16, which is when they started releasing an aarch64 Mac binary. In the meantime, this makes installation more obvious for users on Apple Silicon Macs.
vcanumalla · Apr 9, 2023 · 15647f2 · 15647f2
1 parent 6d41d0e
commit 15647f2
Showing 1 changed file with 16 additions and 62 deletions.
diff --git a/rosette/private/install.rkt b/rosette/private/install.rkt
@@ -66,65 +66,19 @@
          (not (equal? (resolve-path p) p)))))
 
 (define (get-z3-url)
-  (define site "https://github.com/Z3Prover/z3/releases/download")
-  (define-values (os exe)
-    (match (list (system-type 'os*) (system-type 'arch))
-      ['(linux x86_64)   (values "x64-ubuntu-16.04" "z3")]
-      ; TODO: use a native aarch64 Z3 build on macOS when we upgrade to a newer Z3
-      [`(macosx ,_)      (values "x64-osx-10.14.6" "z3")]
-      ['(windows x86_64) (values "x64-win" "z3.exe")]
-      [any               (raise-user-error 'get-z3-url "No Z3 binary available for system type '~a" any)]))
-  (define name (format "z3-~a-~a" z3-version os))
-  (values
-   (format "~a/z3-~a/~a.zip" site z3-version name)
-   (format "~a/bin/~a" name exe)))
-
-
-;; A copy of net/url's get-pure-port/headers, except with the Location header
-;; for redirects made case-insensitive, fixing https://github.com/racket/racket/pull/3057
-(require net/http-client net/url-connect)
-(define (get-pure-port url #:redirections [redirections 0])
-  (let redirection-loop ([redirections redirections] [url url])
-    (define hc (http-conn-open (url-host url)
-                               #:ssl? (if (equal? "https" (url-scheme url))
-                                          (current-https-protocol)
-                                          #f)))
-    (define access-string
-      (url->string
-       ;; RFCs 1945 and 2616 say:
-       ;;   Note that the absolute path cannot be empty; if none is present in
-       ;;   the original URI, it must be given as "/" (the server root).
-       (let-values ([(abs? path)
-                     (if (null? (url-path url))
-                         (values #t (list (make-path/param "" '())))
-                         (values (url-path-absolute? url) (url-path url)))])
-         (make-url #f #f #f #f abs? path (url-query url) (url-fragment url)))))
-    (http-conn-send! hc access-string #:method #"GET" #:content-decode '())
-    (define-values (status headers response-port)
-      (http-conn-recv! hc #:method #"GET" #:close? #t #:content-decode '()))
-
-    (define new-url
-      (ormap (λ (h)
-               (match (regexp-match #rx#"^[Ll]ocation: (.*)$" h)
-                 [#f #f]
-                 [(list _ m1b)
-                  (define m1 (bytes->string/utf-8 m1b))
-                  (with-handlers ((exn:fail? (λ (x) #f)))
-                    (define next-url (string->url m1))
-                    (make-url
-                     (or (url-scheme next-url) (url-scheme url))
-                     (or (url-user next-url) (url-user url))
-                     (or (url-host next-url) (url-host url))
-                     (or (url-port next-url) (url-port url))
-                     (url-path-absolute? next-url)
-                     (url-path next-url)
-                     (url-query next-url)
-                     (url-fragment next-url)))]))
-             headers))
-    (define redirection-status-line?
-      (regexp-match #rx#"^HTTP/[0-9]+[.][0-9]+ 3[0-9][0-9]" status))
-    (cond
-      [(and redirection-status-line? new-url (not (zero? redirections)))
-       (redirection-loop (- redirections 1) new-url)]
-      [else
-       response-port])))
+  ; TODO: Z3 packages a macOS aarch64 binary as of 4.8.16, so remove this special case when we update
+  ; to a newer Z3 version.
+  (if (and (equal? (system-type 'os*) 'macosx) (equal? (system-type 'arch) 'aarch64))
+      (values "https://github.com/emina/rosette/releases/download/4.1/z3-4.8.8-aarch64-osx-13.3.1.zip" "z3")
+      (let ()
+        (define site "https://github.com/Z3Prover/z3/releases/download")
+        (define-values (os exe)
+          (match (list (system-type 'os*) (system-type 'arch))
+            ['(linux x86_64)   (values "x64-ubuntu-16.04" "z3")]
+            [`(macosx ,_)      (values "x64-osx-10.14.6" "z3")]
+            ['(windows x86_64) (values "x64-win" "z3.exe")]
+            [any               (raise-user-error 'get-z3-url "No Z3 binary available for system type '~a" any)]))
+        (define name (format "z3-~a-~a" z3-version os))
+        (values
+         (format "~a/z3-~a/~a.zip" site z3-version name)
+         (format "~a/bin/~a" name exe)))))