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; Modify the user's PATH variable.
;
; Modified by JY to have both a RemoveFromPath
; and an un.RemoveFromPath which are basically
; copies of each other. Why does NSIS demand
; this nonsense?
;
; Modified Feb 14, 2005 by Mathias Sundman:
; Added code to remove the semicolon at the end of the path
; when uninstalling.
;
; Added code to make sure we don't insert an extra semicolon
; before our path if there already exist one at the end of
; the original path.
;
; Removed duplicated "un. and install" functions and made
; macros to duplicate the code instead.
; example usage
;
;Section "Add to path"
; Push $INSTDIR
; Call AddToPath
;SectionEnd
;
;# ...
;
;Section "uninstall"
; # ...
; Push $INSTDIR
; Call un.RemoveFromPath
; # ...
;SectionEnd
!verbose 3
!include "WinMessages.NSH"
!verbose 4
;====================================================
; AddToPath - Adds the given dir to the search path.
; Input - head of the stack
; Note - Win9x systems requires reboot
;====================================================
Function AddToPath
Exch $0
Push $1
Push $2
Call IsNT
Pop $1
StrCmp $1 1 AddToPath_NT
; Not on NT
StrCpy $1 $WINDIR 2
FileOpen $1 "$1\autoexec.bat" a
FileSeek $1 0 END
GetFullPathName /SHORT $0 $0
FileWrite $1 "$\r$\nSET PATH=%PATH%;$0$\r$\n"
FileClose $1
Goto AddToPath_done
AddToPath_NT:
ReadRegStr $1 HKCU "Environment" "PATH"
StrCpy $2 $1 1 -1 # copy last char
StrCmp $2 ";" 0 +2 # if last char == ;
StrCpy $1 $1 -1 # remove last char
StrCmp $1 "" AddToPath_NTdoIt
StrCpy $0 "$1;$0"
Goto AddToPath_NTdoIt
AddToPath_NTdoIt:
WriteRegExpandStr HKCU "Environment" "PATH" $0
SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000
AddToPath_done:
Pop $2
Pop $1
Pop $0
FunctionEnd
;====================================================
; RemoveFromPath - Remove a given dir from the path
; Input: head of the stack
;====================================================
!macro RemoveFromPath un
Function ${un}RemoveFromPath
Exch $0
Push $1
Push $2
Push $3
Push $4
Push $5
Call ${un}IsNT
Pop $1
StrCmp $1 1 RemoveFromPath_NT
; Not on NT
StrCpy $1 $WINDIR 2
FileOpen $1 "$1\autoexec.bat" r
GetTempFileName $4
FileOpen $2 $4 w
GetFullPathName /SHORT $0 $0
StrCpy $0 "SET PATH=%PATH%;$0"
SetRebootFlag true
Goto RemoveFromPath_dosLoop
RemoveFromPath_dosLoop:
FileRead $1 $3
StrCmp $3 "$0$\r$\n" RemoveFromPath_dosLoop
StrCmp $3 "$0$\n" RemoveFromPath_dosLoop
StrCmp $3 "$0" RemoveFromPath_dosLoop
StrCmp $3 "" RemoveFromPath_dosLoopEnd
FileWrite $2 $3
Goto RemoveFromPath_dosLoop
RemoveFromPath_dosLoopEnd:
FileClose $2
FileClose $1
StrCpy $1 $WINDIR 2
Delete "$1\autoexec.bat"
CopyFiles /SILENT $4 "$1\autoexec.bat"
Delete $4
Goto RemoveFromPath_done
RemoveFromPath_NT:
StrLen $2 $0
ReadRegStr $1 HKCU "Environment" "PATH"
Push $1
Push $0
Call ${un}StrStr ; Find $0 in $1
Pop $0 ; pos of our dir
IntCmp $0 -1 RemoveFromPath_done
; else, it is in path
StrCpy $3 $1 $0 ; $3 now has the part of the path before our dir
IntOp $2 $2 + $0 ; $2 now contains the pos after our dir in the path (';')
IntOp $2 $2 + 1 ; $2 now containts the pos after our dir and the semicolon.
StrLen $0 $1
StrCpy $1 $1 $0 $2
StrCpy $3 "$3$1"
StrCpy $5 $3 1 -1 # copy last char
StrCmp $5 ";" 0 +2 # if last char == ;
StrCpy $3 $3 -1 # remove last char
WriteRegExpandStr HKCU "Environment" "PATH" $3
SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000
RemoveFromPath_done:
Pop $5
Pop $4
Pop $3
Pop $2
Pop $1
Pop $0
FunctionEnd
!macroend
!insertmacro RemoveFromPath ""
!insertmacro RemoveFromPath "un."
;====================================================
; StrStr - Finds a given string in another given string.
; Returns -1 if not found and the pos if found.
; Input: head of the stack - string to find
; second in the stack - string to find in
; Output: head of the stack
;====================================================
!macro StrStr un
Function ${un}StrStr
Push $0
Exch
Pop $0 ; $0 now have the string to find
Push $1
Exch 2
Pop $1 ; $1 now have the string to find in
Exch
Push $2
Push $3
Push $4
Push $5
StrCpy $2 -1
StrLen $3 $0
StrLen $4 $1
IntOp $4 $4 - $3
StrStr_loop:
IntOp $2 $2 + 1
IntCmp $2 $4 0 0 StrStrReturn_notFound
StrCpy $5 $1 $3 $2
StrCmp $5 $0 StrStr_done StrStr_loop
StrStrReturn_notFound:
StrCpy $2 -1
StrStr_done:
Pop $5
Pop $4
Pop $3
Exch $2
Exch 2
Pop $0
Pop $1
FunctionEnd
!macroend
!insertmacro StrStr ""
!insertmacro StrStr "un."
;====================================================
; IsNT - Returns 1 if the current system is NT, 0
; otherwise.
; Output: head of the stack
;====================================================
!macro IsNT un
Function ${un}IsNT
Push $0
ReadRegStr $0 HKLM "SOFTWARE\Microsoft\Windows NT\CurrentVersion" CurrentVersion
StrCmp $0 "" 0 IsNT_yes
; we are not NT.
Pop $0
Push 0
Return
IsNT_yes:
; NT!!!
Pop $0
Push 1
FunctionEnd
!macroend
!insertmacro IsNT ""
!insertmacro IsNT "un."
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