4 ms·

powershell is still built on crap I had it randomly throwing exceptions the other day that a path was too long (it was only about 300 characters...)

mdaniel 4y ago
The irony of commenting that under an article that cites the maximum path cannot exceed 260 characters is not lost on me
- blibble 4y ago
  how is that ironic?
  - inferiorhuman 4y ago
    It's like rain on your wedding day
- noAnswer 4y ago
  But the path length can be longer! They just don't care and offload the work.
- mauvehaus 4y ago
  The maximum path length of the NT kernel is 3276-something UCS-2 characters. 260 is a limit imposed by the legacy Win32 interfaces IIRC. I believe the W-interfaces get you the full-fat version, it's just that they're so inconsistently used as to all but guarantee that something you need will have problems. The user-mode stuff is kind of a mess. The kernel-mode stuff is comparatively orthogonal.
  - magicalhippo 4y ago
    You also have to prefix[1] the path with \\?\ unless you've enabled a group policy[2] in Windows 10+. [1]: https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilea#parameters https://learn.microsoft.com/en-us/windows/win32/api/fileapi/... [2]: https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#maximum-path-length-limitation https://learn.microsoft.com/en-us/windows/win32/fileio/namin...
dingdingdang 4y ago
It also adds it's own special brand of crap .. as in after trying 10x different ways (not kidding: https://social.technet.microsoft.com/wiki/contents/articles/7703.powershell-running-executables.aspx#Additional_Resources https://social.technet.microsoft.com/wiki/contents/articles/...) of executing an external ffmpeg command over several hrs I eventually wrote a one line .bat file* and was done with it. Never again. * for %%a in ("*.mp4") do ffmpeg -i "%%a" -vcodec libx265 -crf 26 -tune animation "%%~na.mkv"
- Kwpolska 4y ago
  It's very simple, you don't need any special magic to run a command. gci -filter "*.mp4" | foreach { ffmpeg -i $_ -vcodec libx265 -crf 26 -tune animation ($_ -replace '.mp4','.mkv') } Files with spaces just work.

mdaniel 4y ago

The irony of commenting that under an article that cites the maximum path cannot exceed 260 characters is not lost on me

blibble 4y ago
how is that ironic?
- inferiorhuman 4y ago
  It's like rain on your wedding day
noAnswer 4y ago
But the path length can be longer! They just don't care and offload the work.
mauvehaus 4y ago
The maximum path length of the NT kernel is 3276-something UCS-2 characters. 260 is a limit imposed by the legacy Win32 interfaces IIRC. I believe the W-interfaces get you the full-fat version, it's just that they're so inconsistently used as to all but guarantee that something you need will have problems. The user-mode stuff is kind of a mess. The kernel-mode stuff is comparatively orthogonal.
- magicalhippo 4y ago
  You also have to prefix[1] the path with \\?\ unless you've enabled a group policy[2] in Windows 10+. [1]: https://learn.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-createfilea#parameters https://learn.microsoft.com/en-us/windows/win32/api/fileapi/... [2]: https://learn.microsoft.com/en-us/windows/win32/fileio/naming-a-file#maximum-path-length-limitation https://learn.microsoft.com/en-us/windows/win32/fileio/namin...

dingdingdang 4y ago

It also adds it's own special brand of crap .. as in after trying 10x different ways (not kidding: https://social.technet.microsoft.com/wiki/contents/articles/7703.powershell-running-executables.aspx#Additional_Resources https://social.technet.microsoft.com/wiki/contents/articles/...) of executing an external ffmpeg command over several hrs I eventually wrote a one line .bat file* and was done with it. Never again. * for %%a in ("*.mp4") do ffmpeg -i "%%a" -vcodec libx265 -crf 26 -tune animation "%%~na.mkv"

Kwpolska 4y ago
It's very simple, you don't need any special magic to run a command. gci -filter "*.mp4" | foreach { ffmpeg -i $_ -vcodec libx265 -crf 26 -tune animation ($_ -replace '.mp4','.mkv') } Files with spaces just work.