dependencies.iss

[Code]
// Fork of https://github.com/DomGries/InnoDependencyInstaller

// types and variables
type
  TDependency_Entry = record
    Filename: String;
    Parameters: String;
    Title: String;
    URL: String;
    Checksum: String;
    ForceSuccess: Boolean;
    RestartAfter: Boolean;
  end;

var
  Dependency_Memo: String;
  Dependency_List: array of TDependency_Entry;
  Dependency_NeedToRestart, Dependency_ForceX86: Boolean;
  Dependency_DownloadPage: TDownloadWizardPage;

procedure Dependency_Add(const Filename, Parameters, Title, URL, Checksum: String; const ForceSuccess, RestartAfter: Boolean);
var
  Dependency: TDependency_Entry;
  DependencyCount: Integer;
begin
  Dependency_Memo := Dependency_Memo + #13#10 + '%1' + Title;

  Dependency.Filename := Filename;
  Dependency.Parameters := Parameters;
  Dependency.Title := Title;

  if FileExists(ExpandConstant('{tmp}{\}') + Filename) then begin
    Dependency.URL := '';
  end else begin
    Dependency.URL := URL;
  end;

  Dependency.Checksum := Checksum;
  Dependency.ForceSuccess := ForceSuccess;
  Dependency.RestartAfter := RestartAfter;

  DependencyCount := GetArrayLength(Dependency_List);
  SetArrayLength(Dependency_List, DependencyCount + 1);
  Dependency_List[DependencyCount] := Dependency;
end;

<event('InitializeWizard')>
procedure Dependency_InitializeWizard;
begin
  Dependency_DownloadPage := CreateDownloadPage(SetupMessage(msgWizardPreparing), SetupMessage(msgPreparingDesc), nil);
end;

<event('PrepareToInstall')>
function Dependency_PrepareToInstall(var NeedsRestart: Boolean): String;
var
  DependencyCount, DependencyIndex, ResultCode: Integer;
  Retry: Boolean;
  TempValue: String;
begin
  DependencyCount := GetArrayLength(Dependency_List);

  if DependencyCount > 0 then begin
    Dependency_DownloadPage.Show;

    for DependencyIndex := 0 to DependencyCount - 1 do begin
      if Dependency_List[DependencyIndex].URL <> '' then begin
        Dependency_DownloadPage.Clear;
        Dependency_DownloadPage.Add(Dependency_List[DependencyIndex].URL, Dependency_List[DependencyIndex].Filename, Dependency_List[DependencyIndex].Checksum);

        Retry := True;
        while Retry do begin
          Retry := False;

          try
            Dependency_DownloadPage.Download;
          except
            if Dependency_DownloadPage.AbortedByUser then begin
              Result := Dependency_List[DependencyIndex].Title;
              DependencyIndex := DependencyCount;
            end else begin
              case SuppressibleMsgBox(AddPeriod(GetExceptionMessage), mbError, MB_ABORTRETRYIGNORE, IDIGNORE) of
                IDABORT: begin
                  Result := Dependency_List[DependencyIndex].Title;
                  DependencyIndex := DependencyCount;
                end;
                IDRETRY: begin
                  Retry := True;
                end;
              end;
            end;
          end;
        end;
      end;
    end;

    if Result = '' then begin
      for DependencyIndex := 0 to DependencyCount - 1 do begin
        Dependency_DownloadPage.SetText(Dependency_List[DependencyIndex].Title, '');
        Dependency_DownloadPage.SetProgress(DependencyIndex + 1, DependencyCount + 1);

        while True do begin
          ResultCode := 0;
#ifdef Dependency_CustomExecute
          if {#Dependency_CustomExecute}(ExpandConstant('{tmp}{\}') + Dependency_List[DependencyIndex].Filename, Dependency_List[DependencyIndex].Parameters, ResultCode) then begin
#else
          if ShellExec('', ExpandConstant('{tmp}{\}') + Dependency_List[DependencyIndex].Filename, Dependency_List[DependencyIndex].Parameters, '', SW_SHOWNORMAL, ewWaitUntilTerminated, ResultCode) then begin
#endif
            if Dependency_List[DependencyIndex].RestartAfter then begin
              if DependencyIndex = DependencyCount - 1 then begin
                Dependency_NeedToRestart := True;
              end else begin
                NeedsRestart := True;
                Result := Dependency_List[DependencyIndex].Title;
              end;
              break;
            end else if (ResultCode = 0) or Dependency_List[DependencyIndex].ForceSuccess then begin // ERROR_SUCCESS (0)
              break;
            end else if ResultCode = 1641 then begin // ERROR_SUCCESS_REBOOT_INITIATED (1641)
              NeedsRestart := True;
              Result := Dependency_List[DependencyIndex].Title;
              break;
            end else if ResultCode = 3010 then begin // ERROR_SUCCESS_REBOOT_REQUIRED (3010)
              Dependency_NeedToRestart := True;
              break;
            end;
          end;

          case SuppressibleMsgBox(FmtMessage(SetupMessage(msgErrorFunctionFailed), [Dependency_List[DependencyIndex].Title, IntToStr(ResultCode)]), mbError, MB_ABORTRETRYIGNORE, IDIGNORE) of
            IDABORT: begin
              Result := Dependency_List[DependencyIndex].Title;
              break;
            end;
            IDIGNORE: begin
              break;
            end;
          end;
        end;

        if Result <> '' then begin
          break;
        end;
      end;

      if NeedsRestart then begin
        TempValue := '"' + ExpandConstant('{srcexe}') + '" /restart=1 /LANG="' + ExpandConstant('{language}') + '" /DIR="' + WizardDirValue + '" /GROUP="' + WizardGroupValue + '" /TYPE="' + WizardSetupType(False) + '" /COMPONENTS="' + WizardSelectedComponents(False) + '" /TASKS="' + WizardSelectedTasks(False) + '"';
        if WizardNoIcons then begin
          TempValue := TempValue + ' /NOICONS';
        end;
        RegWriteStringValue(HKA, 'SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce', '{#SetupSetting("AppName")}', TempValue);
      end;
    end;

    Dependency_DownloadPage.Hide;
  end;
end;

#ifndef Dependency_NoUpdateReadyMemo
<event('UpdateReadyMemo')>
#endif
function Dependency_UpdateReadyMemo(const Space, NewLine, MemoUserInfoInfo, MemoDirInfo, MemoTypeInfo, MemoComponentsInfo, MemoGroupInfo, MemoTasksInfo: String): String;
begin
  Result := '';
  if MemoUserInfoInfo <> '' then begin
    Result := Result + MemoUserInfoInfo + Newline + NewLine;
  end;
  if MemoDirInfo <> '' then begin
    Result := Result + MemoDirInfo + Newline + NewLine;
  end;
  if MemoTypeInfo <> '' then begin
    Result := Result + MemoTypeInfo + Newline + NewLine;
  end;
  if MemoComponentsInfo <> '' then begin
    Result := Result + MemoComponentsInfo + Newline + NewLine;
  end;
  if MemoGroupInfo <> '' then begin
    Result := Result + MemoGroupInfo + Newline + NewLine;
  end;
  if MemoTasksInfo <> '' then begin
    Result := Result + MemoTasksInfo;
  end;

  if Dependency_Memo <> '' then begin
    if MemoTasksInfo = '' then begin
      Result := Result + SetupMessage(msgReadyMemoTasks);
    end;
    Result := Result + FmtMessage(Dependency_Memo, [Space]);
  end;
end;

<event('NeedRestart')>
function Dependency_NeedRestart: Boolean;
begin
  Result := Dependency_NeedToRestart;
end;

procedure Dependency_AddVCppRuntime;
begin
  // https://docs.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist
  if not IsMsiProductInstalled('{36F68A90-239C-34DF-B58C-64B30153CE35}', PackVersionComponents(14, 42, 34433, 0)) then begin
    Dependency_Add('vcredist2022_64.exe',
      '/passive /norestart',
      'Visual C++ 2015-2022 Redistributable (x64)',
      'https://aka.ms/vs/17/release/vc_redist.x64.exe',
      '', False, False);
  end;
end;