bug#53339: [version-1.4.0] Package with texlive-updmap.cfg and texlive-amsfonts failing to find Euler

[Ricardo Wurmus]

Ricardo Wurmus <rekado@elephly.net> writes:

> Ricardo Wurmus <rekado@elephly.net> writes:
>
>> elaexuotee@wilsonb.com writes:
>>
>>> Attached patch on top of version-1.4.0 attempts to typset PDF docs for the
>>> metamath package. However, the below error results, which seems to indicate
>>> that the Euler fonts are not found, despite texlive-amsfonts existing in the
>>> texlive-updmap.cfg input.
>>>
>>>     
>>> (/gnu/store/s952x1vkbbcprklzlzimn3m2dn53mjx9-texlive-amsfonts-59745/share/texmf-dist/tex/latex/amsfonts/ueuf.fd)
>>>     kpathsea: Running mktextfm eufm10
>>>     mkdir: cannot create directory ?././homeless-shelter?: Permission denied
>>>     mktextfm: mktexdir 
>>> /homeless-shelter/.texlive2021/texmf-var/fonts/tfm/ams/euler failed.
>>>     kpathsea: Appending font creation commands to missfont.log.
>>>     
>>>     ! Font U/euf/m/n/10=eufm10 at 10.0pt not loadable: Metric (TFM) file 
>>> not found.
>>>     <to be read again>
>>
>> This is a problem with the texlive-amsfonts package.  The tlpdb says
>> that it should provide eufm10.tfm, but it doesn’t.
>
> It now does.
>
> Commit 374464a3bbd38f43784af0cdf54ddceed93e41bd adds a new
> texlive-amsfonts/fixed and adds it to the replacement field of
> texlive-amsfonts, so it should be grafted.
>
>> We can avoid these problems by checking that all texlive packages
>> produce all the outputs that the tlpdb specifies.  The texlive importer
>> already works with the tlpdb; we’d just need some sort of automatic
>> test.  We could do this as part of an optional build phase.
>
> Commit 5ecb4acdcb95478c6efe63bf9caa4db6bda82aba implements the most
> basic check.  We can’t use it during the build, because tlpdb currently
> needs modules that aren’t available on the build side (e.g. those to
> build texlive-bin and look up a file it provides), but it can be used in
> a REPL:
>
>     ,use (guix import texlive)
>     (files-differ? 
> "/gnu/store/aiknpz049bqbr73s58yaqk3ln7hq8n4x-texlive-amsfonts-fixed-59745/share/"
>  "amsfonts")
>
> This should return the empty list.  As should this, which lists files
> that should not have been installed according to the tlpdb:
>
>     (files-differ? 
> "/gnu/store/aiknpz049bqbr73s58yaqk3ln7hq8n4x-texlive-amsfonts-fixed-59745/share/"
>  "amsfonts" #:direction 'extra)
>
> The fixed package installs exactly the files it is supposed to and
> nothing more.

I just applied your patch and then tried to reproduce the problem.  I
can reproduce the problem.  I then explicitly asked for
texlive-amsfonts/fixed instead of texlive-amsfonts and I got past the
failure to find eufm10.

It’s not surprising, because grafts happen *after* the build, but it did
confuse me for a bit.

The new error looks a lot like bug 40558 which I had just closed:

--8<---------------cut here---------------start------------->8---
starting phase `build-doc'
This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2021/GNU Guix) 
(preloaded format=pdflatex)
 restricted \write18 enabled.
entering extended mode
(./metamath.tex
LaTeX2e <2020-10-01> patch level 4
L3 programming layer <2021-02-18>

LaTeX Warning: Writing file `./realref.sty'.



LaTeX Warning: Writing file `./metamath.bib'.


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Document Class: book 2020/04/10 v1.4m Standard LaTeX document class
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For additional information on amsmath, use the `?' option.
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 (./realref.sty) 
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(/gnu/store/0jakmwvyf28fcjlvlbp7g4hbvikp7lry-texlive-latex-anysize-59745/share/texmf-dist/tex/latex/anysize/anysize.sty
document style option `anysize' loaded
Michael Salzenberg, Thomas Esser, Dirk Hillbrecht
Version 1.0, Aug 13, 1994
) (./special-settings.sty)
Writing index file metamath.idx
No file metamath.aux.
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! Math formula deleted: Insufficient extension fonts.
l.861 $\sim$
            \ {\sc Public Domain}\ $\sim$
? 
! Emergency stop.
l.861 $\sim$
            \ {\sc Public Domain}\ $\sim$
!  ==> Fatal error occurred, no output PDF file produced!
Transcript written on metamath.log.
error: in phase 'build-doc': uncaught exception:
%exception #<&invoke-error program: "pdflatex" arguments: ("metamath") 
exit-status: 1 term-signal: #f stop-signal: #f> 
--8<---------------cut here---------------end--------------->8---

I don’t know what that’s about.

-- 
Ricardo