搜索 Inno Setup DestDir 的子目录

Question

我正在尝试使用 Inno Setup 分发一个文件，该文件用作另一个应用程序的插件。如果找不到插件目的地，它仍应将自己安装到 Program Files 目录中，为用户提供手动说明。

向Tlama for providing some code that was used in a similar problem: Inno Setup find subfolder致敬。

以下脚本列出了我希望实现的基本设置，并在脚本不完整的地方添加了注释。我只是在我的头上。 :-)

如何将找到的目录传回给StampTargetDir（目前只是一个MsgBox）
如何搜索指定目录名下的所有子目录(即'Stamps')
如何将所有子目录 (#2) 的搜索限制在 {pf} 或 {localappdata}（即 "Adobe" 和 "Acrobat")
[Files]下的文件插件安装以找到'Stamps'目录为条件

P.S。我知道搜索有一些明显的缺点。然而，"Stamps" 目录不太可能用于其他领域（参见#3）。

[Files]
; Install all the files in a user specified location.
Source: "C:\mydir\readme.pdf"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\mydir\stamp.pdf"; DestDir: "{app}"; Flags: ignoreversion
; If found, install the stamp file in the Adobe Acrobat or Reader Stamp directory.
Source: "C:\mydir\stamp.pdf"; DestDir: "{code:StampTargetDir}"; Flags: ignoreversion


[Tasks]
Name: pf; Description: "&All users on this computer."; GroupDescription: "Configure Acrobat stamp plug-in:"; Flags: exclusive
Name: local;  Description: "&Only the current user (me)."; GroupDescription: "Configure Acrobat stamp plug-in:"; Flags: exclusive unchecked
Name: none;  Description: "&Do not configure stamps (manual setup)."; GroupDescription: "Configure Acrobat stamp plug-in:"; Flags: exclusive unchecked

[Code]
function GetFirstMatchingSubfolder(const Path: string; out Folder: string): Boolean;
var
  S: string;
  FindRec: TFindRec;
begin
  Result := False;
  if FindFirst(ExpandConstant(AddBackslash(Path) + '*'), FindRec) then
  try
    repeat
      // *** THIS DOES NOT SEARCH SUBDIRECTORIES ***
      if (FindRec.Attributes and FILE_ATTRIBUTE_DIRECTORY <> 0) and
        (FindRec.Name <> '.') and (FindRec.Name <> '..') and
        (FindRec.Name = 'Stamps') then
      begin
        Result := True;
        Folder := AddBackslash(Path) + FindRec.Name;
      end;
    until
      not FindNext(FindRec);
  finally
    FindClose(FindRec);
  end;
end;

function StampTargetDir(Param: String): String;
begin
  if IsTaskSelected('pf') then
    // *** THIS NEEDS TO BE 'Stamps' DIRECTORY FOUND UNDER {pf}
    Result := ExpandConstant('{app}') + '\pf'
  else if IsTaskSelected('local') then
    // *** THIS NEEDS TO BE 'Stamps' DIRECTORY FOUND UNDER {localappdata}
    // Assuming {localappdata} is the user's Application Data Folder
    // Typically C:\Documents and Settings\username\Application Data.
    Result := ExpandConstant('{app}') + '\local'
  else
    Result := ExpandConstant('{app}') + '\none'
end;

// *** This procedure is just for testing. The results of
// GetFirstMatchingSubfolder should be used by StampTargetDir
procedure InitializeWizard;
var
  S: string;
begin
  // *** THIS DOES NOT LIMIT SEARCH TO {pf}\Adobe or {pf}\Acrobat ***    if GetFirstMatchingSubfolder(ExpandConstant('{pf}'), S) then
    MsgBox('An extra copy will go in here: ' + S, mbInformation, MB_OK);
end;

Answer 1

要传递从 InitializeWizard 到 StampTargetDir 的路径，请使用全局变量。虽然我建议你最好使用 CurStepChanged(ssInstall) 而不是 InitializeWizard，除非你在实际安装之前需要路径。
在GetFirstMatchingSubfolder中使用递归。
最干净的解决方案是运行 GetFirstMatchingSubfolder 多次使用特定的根（即两次，对于 Adobe 和 Acrobat）
使用Check parameter.

代码可以是这样的：

[Files]
Source: "C:\mydir\stamp.pdf"; DestDir: "{code:GetStampsFolderPath}"; \
    Check: WasStampsFolderFound; Flags: ignoreversion

[Code]

const
  StampsFolderName = 'Stamps';

var
  StampsFolderPath: string;

function WasStampsFolderFound(): Boolean;
begin
  Result := (StampsFolderPath <> '');
end;

function GetStampsFolderPath(Params: string): string;
begin
  Result := StampsFolderPath;
end;

function GetFirstMatchingSubfolderRecursively(const Path: string; Name: string; out Folder: string): Boolean;
var
  FindRec: TFindRec;
  FolderPath: string;
begin
  Result := False;
  Log(Format('Searching in %s', [Path]));

  if FindFirst(AddBackslash(Path) + '*', FindRec) then
  try
    repeat
      if (FindRec.Attributes and FILE_ATTRIBUTE_DIRECTORY <> 0) then
      begin
        FolderPath := AddBackslash(Path) + FindRec.Name;
        if CompareText(FindRec.Name, Name) = 0 then
        begin
          Result := True;
          Folder := FolderPath;
          Log(Format('Match: %s', [Folder]));
        end
          else
        if (FindRec.Name <> '.') and (FindRec.Name <> '..') then
        begin
          Result := GetFirstMatchingSubfolderRecursively(FolderPath, Name, Folder);
        end;
      end;
    until Result or (not FindNext(FindRec));
  finally
    FindClose(FindRec);
  end;
end;

procedure CurStepChanged(CurStep: TSetupStep);
var
  RootPath: string;
begin
  Log(Format('CurStepChanged %d', [CurStep]));

  if CurStep = ssInstall then
  begin
    if IsTaskSelected('pf') then
    begin
      // this should be pf32 or pf64 specifically,
      // depending on where Adobe installs the applications
      RootPath := ExpandConstant('{pf}\');
    end
      else
    if IsTaskSelected('local') then
    begin
      RootPath := ExpandConstant('{localappdata}\');
    end;

    if RootPath = '' then
    begin
      Log(Format('No task selected, will not search for %s', [StampsFolderName]));
    end
      else
    begin
      Log(Format('Searching for %s folder under %s', [StampsFolderName, RootPath]));

      if GetFirstMatchingSubfolderRecursively(RootPath + 'Adobe', StampsFolderName, StampsFolderPath) or
         GetFirstMatchingSubfolderRecursively(RootPath + 'Acrobat', StampsFolderName, StampsFolderPath) then
      begin
        Log(Format('Found %s folder at %s', [StampsFolderName, StampsFolderPath]));
      end
        else
      begin
        Log(Format('%s folder not found anywhere', [StampsFolderName]));
      end;
    end;
  end;
end;

搜索 Inno Setup DestDir 的子目录

Search subdirectories for Inno Setup DestDir

windows-installer

installation

inno-setup

acrobat

pascalscript