Generalized version string

Author: chyndman

ElixirWeb.iss

@@ -28,7 +28,7 @@ WizardImageBackColor=clWhite
 Uninstallable=no
 
 [CustomMessages]
-NameAndVersion=the latest version of %1
+NameAndVersion=%1
 
 [Files]
 ; Zip extraction helper
@@ -50,7 +50,7 @@ Source: "compiler:SetupLdr.e32"; DestDir: "{tmp}\_offlineinstaller"; Flags: dele
 
 [Run]
 Filename: "powershell.exe"; Parameters: "-File {tmp}\extract-zip.ps1 {tmp}\Precompiled.zip {tmp}\_offlineinstaller\elixir"; Flags: waituntilterminated runhidden; StatusMsg: "Extracting precompiled package..."
-Filename: "{tmp}\_offlineinstaller\ISCC.exe"; Parameters: "/dElixirVersion=0.14.1 /dSkipPages /dNoCompression Elixir.iss"; WorkingDir: "{tmp}\_offlineinstaller"; Flags: waituntilterminated runhidden; StatusMsg: "Preparing Elixir installer..."
+Filename: "{tmp}\_offlineinstaller\ISCC.exe"; Parameters: "/dElixirVersion={code:GetSelectedReleaseVersion} /dSkipPages /dNoCompression Elixir.iss"; WorkingDir: "{tmp}\_offlineinstaller"; Flags: waituntilterminated runhidden; StatusMsg: "Preparing Elixir installer..."
 Filename: "{tmp}\_offlineinstaller\Output\elixir-v0.14.1-setup.exe"; Flags: waituntilterminated; StatusMsg: "Running Elixir installer..."
 
 [Code]
@@ -136,6 +136,22 @@ begin
   end;
 end;
 
+function GetSelectedRelease(): TElixirRelease;
+var
+  i: Integer;
+begin
+  for i := 0 to GetArrayLength(ElixirReleases) - 1 do begin
+    if PSelectVerListBox.Checked[i] then begin
+      Result := ElixirReleases[i];
+    end;
+  end;
+end;
+
+function GetSelectedReleaseVersion(Param: String): String;
+begin
+  Result := GetSelectedRelease().Version;
+end;
+
 procedure CurPageChanged(CurPageID: Integer);
 begin
   if CurPageID = PSelectVerPage.ID then begin
@@ -147,6 +163,11 @@ begin
       ReleasesProcessed := True;
     end;
   end;
+
+  if CurPageID = wpReady then begin
+    idpAddFile(GetSelectedRelease().URL, ExpandConstant('{tmp}\Precompiled.zip'));
+    idpDownloadAfter(wpPreparing);
+  end;
 end;
 
 procedure CreatePages();
@@ -170,8 +191,6 @@ procedure InitializeWizard();
 begin
   ReleasesProcessed := False;
   CreatePages;
-  idpAddFile('https://github.com/elixir-lang/elixir/releases/download/v0.14.1/Precompiled.zip', ExpandConstant('{tmp}\Precompiled.zip'));
-  idpDownloadAfter(wpPreparing);
 end;
 
 function PrepareToInstall(var NeedsRestart: Boolean): String;