Mercurial works in Wine

[Matt Mackall]

On Sun, 2008-06-22 at 08:34 +0200, Adrian Buehlmann wrote: 
> On 22.06.2008 06:46, Matt Mackall wrote:
> > I just managed to clone and verify the main hg repo in Wine with the
> > just the following packages (all free software, of course):
> > 
> > Wine 1.0rc5-1  (Debian unstable)
> > Python 2.5
> > MinGW-5.1-4
> > 
> > Running 'winecommand cmd' gives me a console window. Also, Wine emulates
> > enough of Windows' filesystem quirks to make this useful for debugging.
> 
> Interesting!
> 
> Your list of installed packages does not include pywin32.
> 
> Is it possible to install pywin32 and use win32file in that environment?

Probably. I just did the easiest possible thing.

> What does os.name say?

'nt'

sys.getwindowsversion says:

(5, 1, 2600, 2, 'Service Pack 2')

> mercurial.util.winstdout._is_win_9x, openhardlinks ?

undefined; False

> Is posixfile_nt of mercurial.util_win32 used?

Doesn't seem to be.

> Can you run hg with my long path experimental patch [1]
> and clone a repo like e.g. http://www.cadifra.com/cgi-bin/repos/long2 ?

Probably. Running interactive Python in the shell, I can use \\?\ paths
to open reserved filenames that I can't otherwise. Also, long path
behavior:

b = "x" * 200
os.mkdir(b)
c = b + "/" + b
open(c, "w").write("foo") # fails
open("\\\\?\\c:\" + c, "w").write("foo") # fails
open(unicode("\\\\?\\c:\" + c), "w").write("foo") # succeeds
open(unicode(c), "w").write("foo") # succeeds (as I suggested)

So it seems to emulate Windows pretty well, including blowing up when
attempting to clone your long2 repo.

Also, Wine seems to do the right thing in terms of code pages. If I
create a ü file encoded appropriately for my UTF-8 locale in the
underlying ext3 filesystem, it shows up as ü in Wine, but in cp437. But
it doesn't come with a chcp utility, so I'm not sure how to experiment
with it.

At present, I'm poking at some case folding issues that still aren't
sorted.

-- 
Mathematics is the supreme nostalgia of our time.