diff options
Diffstat (limited to 'misc/dist/windows/modpath.pas')
-rw-r--r-- | misc/dist/windows/modpath.pas | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/misc/dist/windows/modpath.pas b/misc/dist/windows/modpath.pas new file mode 100644 index 0000000000..c55ec60163 --- /dev/null +++ b/misc/dist/windows/modpath.pas @@ -0,0 +1,219 @@ +// ---------------------------------------------------------------------------- +// +// Inno Setup Ver: 5.4.2 +// Script Version: 1.4.2 +// Author: Jared Breland <jbreland@legroom.net> +// Homepage: http://www.legroom.net/software +// License: GNU Lesser General Public License (LGPL), version 3 +// http://www.gnu.org/licenses/lgpl.html +// +// Script Function: +// Allow modification of environmental path directly from Inno Setup installers +// +// Instructions: +// Copy modpath.iss to the same directory as your setup script +// +// Add this statement to your [Setup] section +// ChangesEnvironment=true +// +// Add this statement to your [Tasks] section +// You can change the Description or Flags +// You can change the Name, but it must match the ModPathName setting below +// Name: modifypath; Description: &Add application directory to your environmental path; Flags: unchecked +// +// Add the following to the end of your [Code] section +// ModPathName defines the name of the task defined above +// ModPathType defines whether the 'user' or 'system' path will be modified; +// this will default to user if anything other than system is set +// setArrayLength must specify the total number of dirs to be added +// Result[0] contains first directory, Result[1] contains second, etc. +// const +// ModPathName = 'modifypath'; +// ModPathType = 'user'; +// +// function ModPathDir(): TArrayOfString; +// begin +// setArrayLength(Result, 1); +// Result[0] := ExpandConstant('{app}'); +// end; +// #include "modpath.iss" +// ---------------------------------------------------------------------------- + +procedure ModPath(); +var + oldpath: String; + newpath: String; + updatepath: Boolean; + pathArr: TArrayOfString; + aExecFile: String; + aExecArr: TArrayOfString; + i, d: Integer; + pathdir: TArrayOfString; + regroot: Integer; + regpath: String; + +begin + // Get constants from main script and adjust behavior accordingly + // ModPathType MUST be 'system' or 'user'; force 'user' if invalid + if ModPathType = 'system' then begin + regroot := HKEY_LOCAL_MACHINE; + regpath := 'SYSTEM\CurrentControlSet\Control\Session Manager\Environment'; + end else begin + regroot := HKEY_CURRENT_USER; + regpath := 'Environment'; + end; + + // Get array of new directories and act on each individually + pathdir := ModPathDir(); + for d := 0 to GetArrayLength(pathdir)-1 do begin + updatepath := true; + + // Modify WinNT path + if UsingWinNT() = true then begin + + // Get current path, split into an array + RegQueryStringValue(regroot, regpath, 'Path', oldpath); + oldpath := oldpath + ';'; + i := 0; + + while (Pos(';', oldpath) > 0) do begin + SetArrayLength(pathArr, i+1); + pathArr[i] := Copy(oldpath, 0, Pos(';', oldpath)-1); + oldpath := Copy(oldpath, Pos(';', oldpath)+1, Length(oldpath)); + i := i + 1; + + // Check if current directory matches app dir + if pathdir[d] = pathArr[i-1] then begin + // if uninstalling, remove dir from path + if IsUninstaller() = true then begin + continue; + // if installing, flag that dir already exists in path + end else begin + updatepath := false; + end; + end; + + // Add current directory to new path + if i = 1 then begin + newpath := pathArr[i-1]; + end else begin + newpath := newpath + ';' + pathArr[i-1]; + end; + end; + + // Append app dir to path if not already included + if (IsUninstaller() = false) AND (updatepath = true) then + newpath := newpath + ';' + pathdir[d]; + + // Write new path + RegWriteStringValue(regroot, regpath, 'Path', newpath); + + // Modify Win9x path + end else begin + + // Convert to shortened dirname + pathdir[d] := GetShortName(pathdir[d]); + + // If autoexec.bat exists, check if app dir already exists in path + aExecFile := 'C:\AUTOEXEC.BAT'; + if FileExists(aExecFile) then begin + LoadStringsFromFile(aExecFile, aExecArr); + for i := 0 to GetArrayLength(aExecArr)-1 do begin + if IsUninstaller() = false then begin + // If app dir already exists while installing, skip add + if (Pos(pathdir[d], aExecArr[i]) > 0) then + updatepath := false; + break; + end else begin + // If app dir exists and = what we originally set, then delete at uninstall + if aExecArr[i] = 'SET PATH=%PATH%;' + pathdir[d] then + aExecArr[i] := ''; + end; + end; + end; + + // If app dir not found, or autoexec.bat didn't exist, then (create and) append to current path + if (IsUninstaller() = false) AND (updatepath = true) then begin + SaveStringToFile(aExecFile, #13#10 + 'SET PATH=%PATH%;' + pathdir[d], True); + + // If uninstalling, write the full autoexec out + end else begin + SaveStringsToFile(aExecFile, aExecArr, False); + end; + end; + end; +end; + +// Split a string into an array using passed delimeter +procedure MPExplode(var Dest: TArrayOfString; Text: String; Separator: String); +var + i: Integer; +begin + i := 0; + repeat + SetArrayLength(Dest, i+1); + if Pos(Separator,Text) > 0 then begin + Dest[i] := Copy(Text, 1, Pos(Separator, Text)-1); + Text := Copy(Text, Pos(Separator,Text) + Length(Separator), Length(Text)); + i := i + 1; + end else begin + Dest[i] := Text; + Text := ''; + end; + until Length(Text)=0; +end; + + +procedure CurStepChanged(CurStep: TSetupStep); +var + taskname: String; +begin + taskname := ModPathName; + if CurStep = ssPostInstall then + if IsTaskSelected(taskname) then + ModPath(); +end; + +procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep); +var + aSelectedTasks: TArrayOfString; + i: Integer; + taskname: String; + regpath: String; + regstring: String; + appid: String; +begin + // only run during actual uninstall + if CurUninstallStep = usUninstall then begin + // get list of selected tasks saved in registry at install time + appid := '{#emit SetupSetting("AppId")}'; + if appid = '' then appid := '{#emit SetupSetting("AppName")}'; + regpath := ExpandConstant('Software\Microsoft\Windows\CurrentVersion\Uninstall\'+appid+'_is1'); + RegQueryStringValue(HKLM, regpath, 'Inno Setup: Selected Tasks', regstring); + if regstring = '' then RegQueryStringValue(HKCU, regpath, 'Inno Setup: Selected Tasks', regstring); + + // check each task; if matches modpath taskname, trigger patch removal + if regstring <> '' then begin + taskname := ModPathName; + MPExplode(aSelectedTasks, regstring, ','); + if GetArrayLength(aSelectedTasks) > 0 then begin + for i := 0 to GetArrayLength(aSelectedTasks)-1 do begin + if comparetext(aSelectedTasks[i], taskname) = 0 then + ModPath(); + end; + end; + end; + end; +end; + +function NeedRestart(): Boolean; +var + taskname: String; +begin + taskname := ModPathName; + if IsTaskSelected(taskname) and not UsingWinNT() then begin + Result := True; + end else begin + Result := False; + end; +end; |