allowOnlyOneInstallerInstance.nsh
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!include "nsProcess.nsh"
!ifmacrondef customCheckAppRunning
!include "getProcessInfo.nsh"
Var pid
!endif
# http://nsis.sourceforge.net/Allow_only_one_installer_instance
!macro ALLOW_ONLY_ONE_INSTALLER_INSTANCE
BringToFront
!define /ifndef SYSTYPE_PTR p ; NSIS v3.0+
System::Call 'kernel32::CreateMutex(${SYSTYPE_PTR}0, i1, t"${APP_GUID}")?e'
Pop $0
IntCmpU $0 183 0 launch launch ; ERROR_ALREADY_EXISTS
StrLen $0 "$(^SetupCaption)"
IntOp $0 $0 + 1 ; GetWindowText count includes \0
StrCpy $1 "" ; Start FindWindow with NULL
loop:
FindWindow $1 "#32770" "" "" $1
StrCmp 0 $1 notfound
System::Call 'user32::GetWindowText(${SYSTYPE_PTR}r1, t.r2, ir0)'
StrCmp $2 "$(^SetupCaption)" 0 loop
SendMessage $1 0x112 0xF120 0 /TIMEOUT=2000 ; WM_SYSCOMMAND:SC_RESTORE to restore the window if it is minimized
System::Call "user32::SetForegroundWindow(${SYSTYPE_PTR}r1)"
notfound:
Abort
launch:
!macroend
!macro CHECK_APP_RUNNING
!ifmacrodef customCheckAppRunning
!insertmacro customCheckAppRunning
!else
!insertmacro _CHECK_APP_RUNNING
!endif
!macroend
!macro _CHECK_APP_RUNNING
${GetProcessInfo} 0 $pid $1 $2 $3 $4
${if} $3 != "${APP_EXECUTABLE_FILENAME}"
${if} ${isUpdated}
# allow app to exit without explicit kill
Sleep 300
${endIf}
${nsProcess::FindProcess} "${APP_EXECUTABLE_FILENAME}" $R0
${if} $R0 == 0
${if} ${isUpdated}
# allow app to exit without explicit kill
Sleep 1000
Goto doStopProcess
${endIf}
MessageBox MB_OKCANCEL|MB_ICONEXCLAMATION "$(appRunning)" /SD IDOK IDOK doStopProcess
Quit
doStopProcess:
DetailPrint `Closing running "${PRODUCT_NAME}"...`
# https://github.com/electron-userland/electron-builder/issues/2516#issuecomment-372009092
nsExec::Exec `taskkill /im "${APP_EXECUTABLE_FILENAME}" /fi "PID ne $pid"` $R0
# to ensure that files are not "in-use"
Sleep 300
${nsProcess::FindProcess} "${APP_EXECUTABLE_FILENAME}" $R0
${if} $R0 == 0
# wait to give a chance to exit gracefully
Sleep 1000
nsExec::Exec `taskkill /f /im "${APP_EXECUTABLE_FILENAME}" /fi "PID ne $pid"` $R0
${If} $R0 != 0
DetailPrint `Waiting for "${PRODUCT_NAME}" to close (taskkill exit code $R0).`
Sleep 2000
${endIf}
${endIf}
${endIf}
${endIf}
!macroend