use "replace" instead of "delete" for executable creation when

the file already exists and improve error handling

closes PR 13243

collects/drracket/private/language.rkt

@@ -32,6 +32,7 @@
   (import [prefix drracket:debug: drracket:debug^]
           [prefix drracket:tools: drracket:tools^]
           [prefix drracket:rep: drracket:rep^]
+          [prefix drracket:init: drracket:init^]
           [prefix drracket:help-desk: drracket:help-desk^])
   (export drracket:language^)
   
@@ -689,16 +690,28 @@
                   [(launcher) create-module-based-launcher]
                   [(stand-alone) create-module-based-stand-alone-executable]
                   [(distribution) create-module-based-distribution])])
-          (create-executable
-           program-filename
-           executable-filename
-           module-language-spec
-           transformer-module-language-spec
-           init-code
-           (if (boolean? mred-launcher)
-               mred-launcher
-               (eq? base 'mred))
-           use-copy?)))))
+          (with-handlers ((exn:fail? (λ (msg)
+                                       (define sp (open-output-string))
+                                       (parameterize ([current-error-port sp])
+                                         (drracket:init:original-error-display-handler
+                                          (exn-message exn)
+                                          exn))
+                                       (message-box 
+                                        (string-constant drscheme)
+                                        (string-append
+                                         (string-constant error-creating-executable)
+                                         "\n\n"
+                                         (get-output-string sp))))))
+            (create-executable
+             program-filename
+             executable-filename
+             module-language-spec
+             transformer-module-language-spec
+             init-code
+             (if (boolean? mred-launcher)
+                 mred-launcher
+                 (eq? base 'mred))
+             use-copy?))))))
   
   
   ;; create-executable-gui : (union #f (is-a?/c top-level-area-container<%>))
@@ -851,7 +864,7 @@
     ;; ask-user-can-clobber-directory? : (is-a?/c top-level-window<%>) string -> boolean
     (define (ask-user-can-clobber? filename)
       (eq? (message-box (string-constant drscheme)
-                        (format (string-constant are-you-sure-delete?) filename)
+                        (format (string-constant are-you-sure-replace?) filename)
                         dlg
                         '(yes-no)
                         #:dialog-mixin frame:focus-table-mixin)

collects/string-constants/private/english-string-constants.rkt

@@ -120,6 +120,7 @@ please adhere to these guidelines:
  (stop "Stop")   
  (&stop "&Stop") ;; for use in button and menu item labels, with short cut.
  (are-you-sure-delete? "Are you sure you want to delete ~a?") ;; ~a is a filename or directory name
+ (are-you-sure-replace? "Are you sure you want to replace ~a?") ;; ~a is a filename or directory name
  (ignore "Ignore")
  (revert "Revert")
 
@@ -995,7 +996,8 @@ please adhere to these guidelines:
  (save-a-mzscheme-stand-alone-executable "Save a Racket Stand-alone Executable")
  (save-a-mred-distribution "Save a GRacket Distribution")
  (save-a-mzscheme-distribution "Save a Racket Distribution")
-
+ (error-creating-executable "Error creating executable:") ;; this is suffixed with an error message ala error-display-handler
+  
  (definitions-not-saved "The definitions window has not been saved. The executable will use the latest saved version of the definitions window. Continue?")
  ;; The "-explanatory-label" variants are the labels used for the radio buttons in
  ;;  the "Create Executable..." dialog for the "(module ...)" language.