Lua execute windows command in Lightroom SDK

Question

I’m porting my lightroom plugin to Windows. On MacOSX everything works perfect.

Now i’m stuck with one command, Normally I try to use as mutch of LR commands because they are compatible with both OS’s.

cmdRunExifTool = string.format('cd "'..NewTargetDir..'"  &&  '.._PLUGIN.path..'\\bin\\win\\exiftool.exe '..(optionOverwrite or "")..' optionAppend=".\\C+F-'..NewJson..'" .') 
LrTasks.execute(cmdRunExifTool)

I have added a pop-up window with the command and it show me this:

cd "c:\Users\patri\Pictures\TEST-IMAGES\FF690-KTMX-000869\_scans\positives\C+F_exiftool" && c:\Users\patri\Documents\AnalogeFotografie.lrplugin\bin\win\exiftool.exe optionAppend=".\C+F-mybeelden" .

But nothing happens. If I run this on the command line it works !

Answer 1

For WIN_ENV you have to surround the whole cmdline with double-quotes (")

function cmdlineQuote()
    if WIN_ENV then
        return '"'
    elseif MAC_ENV then
        return ''
    else
        return ''
    end
end

cmdRunExifTool = 
    cmdlineQuote() .. 
    string.format('cd "'..NewTargetDir..'"  &&  '.._PLUGIN.path..'\\bin\\win\\exiftool.exe '..(optionOverwrite or "")..' optionAppend=".\\C+F-'..NewJson..'" .')  ..
    cmdlineQuote()
LrTasks.execute(cmdRunExifTool)