如何访问基于Inno Setup的安装程序的返回代码?
例如,this文档说如果"安装程序无法初始化"则退出代码将为1。在我的安装程序中,在某些情况下,代码会从False
返回InitializeSetup()
。我在命令提示符下运行带有/silent
标志的安装程序。如果我echo %errorlevel%
,我会得到0.
InitializeSetup()
函数的相关代码部分:
function InitializeSetup(): Boolean;
var
ResultCode: Integer;
begin
{ In silent mode, set Result to false so as to exit before wizard is }
{ launched in case setup cannot continue. }
if WizardSilent() then
begin
{ CompareVersion() logically returns the -1, 0 or 1 based on }
{ whether the version being installed is less than, equal to or greater }
{ than version already installed. Returns 0 is there is no existing }
{ installation. }
ResultCode := CompareVersion();
if ResultCode < 0 then
begin
Result := False;
Exit;
end;
end;
Result := True;
end;
从命令行,这是我正在运行和捕获返回值的方式:
C:\VersionCheck>myinstaller.exe /Silent
C:\VersionCheck>echo %errorlevel%
0
C:\VersionCheck>
日志文件显示:
2016-09-29 08:05:11.259 Log opened. (Time zone: UTC-07:00)
2016-09-29 08:05:11.259 Setup version: Inno Setup version 5.5.9 (u)
2016-09-29 08:05:11.259 Original Setup EXE: C:\VersionCheck\myinstaller.exe
2016-09-29 08:05:11.259 Setup command line: /SL5="$9051C,3445541,131584,C:\VersionCheck\myinstaller.exe" /Silent
2016-09-29 08:05:11.259 Windows version: 6.3.9600 (NT platform: Yes)
2016-09-29 08:05:11.259 64-bit Windows: Yes
2016-09-29 08:05:11.259 Processor architecture: x64
2016-09-29 08:05:11.259 User privileges: Administrative
2016-09-29 08:05:11.259 64-bit install mode: Yes
2016-09-29 08:05:11.259 Created temporary directory: C:\Users\ADMINI~1\AppData\Local\Temp\2\is-TQB2V.tmp
2016-09-29 08:05:11.275 Installed version component : 3
2016-09-29 08:05:11.275 Updating to version component : 0
2016-09-29 08:05:11.275 This computer already has a more recent version (3.5.0.0) of XYZ. If you wantto downgrade to version 0.0.0.0 then uninstall and try again. Setup will exit.
2016-09-29 08:05:11.275 InitializeSetup returned False; aborting.
2016-09-29 08:05:11.275 Got EAbort exception.
2016-09-29 08:05:11.275 Deinitializing Setup.
2016-09-29 08:05:11.275 Log closed.
我有什么遗失的吗?
答案 0 :(得分:2)
您的测试无效。
从命令行执行GUI应用程序(安装程序)时,控制台不会等待程序完成。因此%errorlevel%
不能包含应用程序(安装程序)的退出代码,因为它尚未完成。
在这种情况下,%errorlevel%
反映了仅启动应用程序的错误(但不成功)。
另请注意,静音模式实际上对此没有影响。非静音模式的行为相同。
但是,如果将完全相同的命令添加到批处理文件(.bat
),它将起作用。批处理文件等待应用程序完成。
C:\VersionCheck>test.bat
C:\VersionCheck>myinstaller.exe /Silent
C:\VersionCheck>echo 1
1
C:\VersionCheck>
test.bat
包含两个命令:
myinstaller.exe /Silent
echo %errorlevel%