2010-11-28 80 views
1

我在更新PATH變量時遇到問題。我需要做的是更新路徑(工作正常),然後立即在安裝程序中使用新版本。這不起作用。在同一安裝程序中使用更新的NSIS路徑

這裏是我使用更新的路徑是什麼:

!macro ADD_TO_PATH pathAdd 
     DetailPrint "Adding ${pathAdd} to the system PATH." 
     ReadRegStr $1 ${WriteEnvStr_RegKey} "PATH" 
     WriteRegStr ${WriteEnvStr_RegKey} "PATH" "$1;${pathAdd}" 
     SendMessage ${HWND_BROADCAST} ${WM_WININICHANGE} 0 "STR:Environment" /TIMEOUT=5000 

     ReadRegStr $1 ${WriteEnvStr_RegKey} "PATH" 
     MessageBox MB_OK "Path: $1" 

!macroend 

這裏是什麼,我需要用它做:

Section "${PRODUCT_NAME}" SEC_R 

     DetailPrint 'Installing Python Dateutil...' 
     !insertmacro EXEC_OUT 'dtutil' 'easy_install python-dateutil' 'DateUtil' 'true' 

SectionEnd 

哪裏EXEC_OUT如下:

; Silent execution of easy_install. 
; abrt - is set to 'true', causes Abort on failure. 
; name - user-friendly name to print 
; package - unique name for labels 
; what - full command to execute(ex: "easy_install packageXYZ") 
!macro EXEC_OUT package what name abrt 

     MessageBox MB_OK "what: ${what}" 
     ExecWait "${what}" $0 
     ${If} $0 == "0" 
      DetailPrint "${name} module installed successfully." 
     ${Else} 
       DetailPrint "${name} failed to install: $0" 
      ${If} ${abrt} == "true" 
        abort "An essential part of the installation, ${name}, failed to install. Aborting installation." 
      ${EndIf} 
     ${EndIf} 

!macroend 

爲什麼這不起作用?在應用程序退出之前PATH是否無法更新?

回答