fsSize() option to return only a specific drive on Windows

[AxelTerizaki]

I suppose this is related to #314 and #299 in some ways. I have read them and feel like my request might not be doable, but here goes nothing :

Would it be possible to only get one drive's size instead of all the drives, in case a network drive is disconnected somehow? My main issue is that I check for available disk space on a specific drive before downloading something, and the fsSize() promise never resolves or resolves incorrectly due to the network drive being unreachable even though it's totally unrelated to where I want to check available disk space.

Given what I've read in the aforementionned issues, I'd understand if it wasn't possible given Windows' limitations :)

Thanks in advance for your reply.

[kacesensitive]

@AxelTerizaki if you change filesystem.js a bit you can get it to work!

first you'll need to be able to pass a drive name into the function so on ln 39 change it to function fsSize(callback, drive) {

then we'll want to pass that to the powershell command it runs on windows so ln 129 make a const with the optionally filtered command, something like const cmd = `Get-WmiObject Win32_logicaldisk | select Caption,FileSystem,FreeSpace,Size ${drive ? `| where -property Caption -eq ` + drive : ''} | fl`;

then just pass that in as the string instead on ln 131 and you should be good!

si.fsSize()
  .then(data => console.log(data))
  .catch(error => console.error(error));

[
  {
    fs: 'C:',
    type: 'NTFS',
    size: 510980517888,     
    used: 493503086592,     
    available: 17477431296, 
    use: 96.58,
    mount: 'C:'
  },
  {
    fs: 'D:',
    type: 'NTFS',
    size: 1000200990720,    
    used: 810458435584,     
    available: 189742555136,
    use: 81.03,
    mount: 'D:'
  },
  {
    fs: 'F:',
    type: 'NTFS',
    size: 1000196796416,    
    used: 724427710464,     
    available: 275769085952,
    use: 72.43,
    mount: 'F:'
  }
]

will still give you all the drives

but

si.fsSize(null, 'C:')
  .then(data => console.log(data))
  .catch(error => console.error(error));

[
  {
    fs: 'C:',
    type: 'NTFS',
    size: 510980517888,    
    used: 493501169664,    
    available: 17479348224,
    use: 96.58,
    mount: 'C:'
  }
]

should filter it to the specified drive!

if this is something the maintainer would like to add, I don't mind making a PR!

[AxelTerizaki]

That's pretty good news, and I'd love for it to be implemented in the module by the author :)