Install customized version of configuration file in Inno Setup after (Firebird) subinstaller finishes

问题

I'm trying to install Firebird 3 along with my application using Inno Setup and I need to distribute a customized version of firebird.conf file to replace the default that comes with Firebird. How to do that? Any options of the following would be enough:

1. Copy Firebird.conf after Firebird is installed. (I'm not able to do that since the file added in [Files] section is always copied before running Firebird installation).

2. Download sources for Firebird, add my firebird.conf there and create a new Firebird installer. (No idea where to get all the necessary files for this)

回答1:

One way to install a file after installation completes is by extracting it programmatically from CurStepChanged(ssPostInstall):

[Files]
Source: "Firebird.conf"; Flags: dontcopy

[Code]

procedure CurStepChanged(CurStep: TSetupStep);
begin
  if CurStep = ssPostInstall then
  begin
    Log('Installing Firebird.conf');
    ExtractTemporaryFile('Firebird.conf');
    if not FileCopy(ExpandConstant('{tmp}\Firebird.conf'),
                    ExpandConstant('{app}\Firebird.conf'), False) then
    begin
      RaiseException('Could not install Firebird.conf');
    end;
  end;
end;

For alternatives, see Overwrite installed files with files in setup subfolder in Inno Setup.

来源：https://stackoverflow.com/questions/51293403/install-customized-version-of-configuration-file-in-inno-setup-after-firebird