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Wininstaller2: silently uninstall old LyX if not the same minor version

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This commit is contained in:
Eugene Chornyi 2020-12-11 22:15:02 +01:00
parent 7b41faabae
commit bd8a9d3ce3
1 changed files with 11 additions and 0 deletions
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11
development/Win32/packaging/installer2/src/main.nsh
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@ -522,6 +522,17 @@ Section -CheckSilent # This section checks if it's a silent install and calls ne
Call DefaultDesktopFileAssoc
SectionEnd
Section -UninstallOld
${If} ${FileExists} "$INSTDIR\Uninstall-LyX.exe"
${GetFileVersion} "$INSTDIR\Uninstall-LyX.exe" $0
StrCpy $0 $0 3 # get only the first 3 chars, e.g. "2.3"
${If} $0 != "${VERSION_MAJOR}.${VERSION_MINOR}"
ExecWait "$INSTDIR\Uninstall-LyX.exe /S _?=$INSTDIR" # silently uninstall old LyX
Delete "$INSTDIR\Uninstall-LyX.exe"
${EndIf}
${EndIf}
SectionEnd
Section -OverInstallReg # If over-installing, we need to delete the registry keys written by the previous installment
Call PrepareShellCTX # Helper function from above
StrCpy $1 0