> On Nov. 11, 2015, 1:47 p.m., Joseph Wu wrote:
> > bootstrap.bat, line 40
> > <https://reviews.apache.org/r/40131/diff/1/?file=1121484#file1121484line40>
> >
> >     `mklink` only works with the Windows command prompt, run as an 
> > administrator.  Is that correct?
> >     
> >     (At least, I don't think the command exists in other Windows shells, 
> > like PowerShell.)
> 
> Alex Clemmer wrote:
>     That's mostly correct, yes: we do not assume the user has PowerShell 
> right now, and we do assume the shell running this is `cmd.exe`.
>     
>     The symlink thing is a bit more subtle, though: creating symlinks in 
> general requires the `SeCreateSymbolicLinkPrivilege` privilege, which is by 
> default only granted to administrators. This need not be the case, though.
> 
> Joseph Wu wrote:
>     We definitely don't want to assume any specific shell without at least a 
> comment saying so.  If there's some way to detect the shell, that would be 
> better.  (And PowerShell is, by default, installed on Windows nowadays.)
> 
> Alex Clemmer wrote:
>     Interesting, it sounds like oyu know some stuff about Windows scripting 
> that I don't. My impression was that if you wanted to make a batch script run 
> in PowerShell, you specifically had to make it (_e.g._) a `.ps1`, and that 
> everything else is assumed to be a batch script meant to be run with `cmd`. 
> Is this wrong?
>     
>     And if it is wrong, how does this affect with our current use of 
> `cmd`-only `.bat` scripts (from what I can tell anyway) such as: 
> https://github.com/apache/mesos/blob/master/3rdparty/libprocess/cmake/macros/VsBuildCommand.bat

I'm not sure if PowerShell is smart enough to run `.bat` scripts with something 
equivalent to `cmd \c <contents of .bat file>`.  

I don't have a Windows computer handy to confirm this at the moment.  But it 
would be straightforward to do so:
```
echo "mklink" > test.bat
```
In PowerShell:
```
./test.bat
```
Then check which error message you get.  Is it a command-not-found error?  Or 
`mklink` s help message?


- Joseph


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On Nov. 16, 2015, 12:30 a.m., Alex Clemmer wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/40131/
> -----------------------------------------------------------
> 
> (Updated Nov. 16, 2015, 12:30 a.m.)
> 
> 
> Review request for mesos, Artem Harutyunyan, Michael Hopcroft, Joris Van 
> Remoortere, and Joseph Wu.
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> Windows: Added `bootstrap.bat`, the Windows implementation of `bootstrap`.
> 
> 
> Diffs
> -----
> 
>   bootstrap.bat PRE-CREATION 
> 
> Diff: https://reviews.apache.org/r/40131/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Alex Clemmer
> 
>

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