On Mon, May 30, 2011 at 06:58:11PM +0200, Michal wrote:
> On Sat, 28 May 2011 18:12:13 +0200
> Michal <ms-li...@ms.sebdan.com> wrote:
>
> > Recently I've reinstalled both MiKTeX and LyX from scratch
> > using official installers for both, and my documents are not
> > compilable anymore, instead I get the following messsage:
> >
> > ! LaTeX Error: File `preambles/common.sty' not found.
> I've investigated this further and it turned out that configure.py
> incorrectly sets the option
>
> \tex_expects_windows_paths
>
> to 'false' on my system, which in turn causes the \def\input@path{{...}}
> line in temporary .tex files generated by LyX to contain cygwin-specific
> path (starting with '/cygdrive/'), which was the reason of LaTeX not
> finding external files.
>
> The reason for this 'misbehavior' is the following line in
> configure.py, taken from checkTeXPaths():
>
> latex_out = cmdOutput(r'latex "\nonstopmode\input{%s}"' % inpname)
>
> Latex executed this way won't work as intended when there are spaces
> in inpname (which is a full path to temporary file). It still works most
> of the times because inpname for some reason contains the DOS 8+3 path
> whenever it is available, for example on test system of mine:
>
> c:/docume\string~1/ms/ustawi\string~1/temp/tmpyhdnnl.ltx
>
> ('\string' is added a few lines earlier before each tilde) but on a
> system I'm currently using it contained:
> c:/documents and settings/ms/ustawienia lokalne/temp/tmp_fnkii.ltx
>
> which confused LaTeX and resulted in a problem I've experienced.
I could reproduce the problem by setting the TEMP env var to a path
with spaces.
> The more correct way of executing LaTeX is for example used in
> checkTeXAllowSpaces():
>
> if os.name == 'nt':
> latex_out = cmdOutput(LATEX + r""""\nonstopmode\input{\"a b\"}" """)
> else:
> latex_out = cmdOutput(LATEX + r"""'\nonstopmode\input{"a b"}' """)
>
> ... and it additionally uses the LATEX variable, so I think
> checkTeXPaths() should be corrected similarly. BTW: isn't it another bug
> to not to add space after LATEX? Also: shouldn't checkTeXPaths() also
> rely on the previously executed checkTeXAllowSpaces() result and try to
> avoid spaces when these are unsupported (couldn't test it, because
> MikTeX's latex.exe apparently supports spaces)?
>
> Anyway, the attached patch (wrt LyX 2.0 'official' configure.py)
> helped and my problem is now gone.
>
> Could someone test and apply this patch (I'm not a LyX developer
> myself)?
Your patch would not work if TeX doesn't allow spaces in filenames, so
I committed the attached patch that simply transforms the path in its
short form.
--
Enrico
Index: lib/configure.py
===================================================================
--- lib/configure.py (revisione 38892)
+++ lib/configure.py (copia locale)
@@ -102,7 +102,14 @@ def checkTeXPaths():
from tempfile import mkstemp
fd, tmpfname = mkstemp(suffix='.ltx')
if os.name == 'nt':
- inpname = tmpfname.replace('\\', '/')
+ from ctypes import windll, create_unicode_buffer
+ GetShortPathName = windll.kernel32.GetShortPathNameW
+ longname = unicode(tmpfname)
+ shortname = create_unicode_buffer(len(longname)+1)
+ if GetShortPathName(longname, shortname, len(longname)+1):
+ inpname = shortname.value.replace('\\', '/')
+ else:
+ inpname = tmpfname.replace('\\', '/')
else:
inpname = cmdOutput('cygpath -m ' + tmpfname)
logname = os.path.basename(inpname.replace('.ltx', '.log'))
