У меня есть приложение ruby on rails, которое использует pandoc-ruby для преобразования файлов уценки в pdf. Pandoc-ruby требует установки pandoc. Для успешного преобразования в pdf также необходимо наличие pdflatex. Локально (проверено на Mac и Ubuntu 18.04) все работает, если установлены пакеты pandoc, texlive-latex-recommended и texlive-fonts-recommended. При развертывании на героку все становится немного сложнее. Чтобы установить все пакеты на героку, я использовал подход Aptfile, и мне не удалось решить эту проблему.
Подход 1: Aptfile
Я указал этот Aptfile:
# Aptfile
texlive-latex-recommended
texlive-fonts-recommended
https://github.com/jgm/pandoc/releases/download/2.11.3.2/pandoc-2.11.3.2-1-amd64.deb
Ошибка, которую я получаю:
2021-01-22T21:46:03.478937+00:00 app[web.1]: [6ac45926-62f3-48bf-98b5-8f7c1022a02f] RuntimeError (warning: kpathsea: configuration file texmf.cnf not found in these directories: /etc/texmf/web2c:/usr/local/share/texmf/web2c:/usr/share/texmf/web2c:/usr/share/texlive/texmf-dist/web2c:/app/.apt/share/texmf/web2c.
2021-01-22T21:46:03.478938+00:00 app[web.1]:
2021-01-22T21:46:03.478938+00:00 app[web.1]: kpathsea: Running mktexfmt pdflatex.fmt
2021-01-22T21:46:03.478940+00:00 app[web.1]: warning: kpathsea: configuration file texmf.cnf not found in these directories: /etc/texmf/web2c:/usr/local/share/texmf/web2c:/usr/share/texmf/web2c:/usr/share/texlive/texmf-dist/web2c:/app/.apt/share/texmf/web2c.
2021-01-22T21:46:03.478940+00:00 app[web.1]: /app/.apt/usr/bin/mktexfmt: kpsewhich -var-value=TEXMFROOT failed, aborting early.
2021-01-22T21:46:03.478942+00:00 app[web.1]: BEGIN failed--compilation aborted at /app/.apt/usr/bin/mktexfmt line 28.
2021-01-22T21:46:03.478942+00:00 app[web.1]: warning: kpathsea: configuration file texmf.cnf not found in these directories: /etc/texmf/web2c:/usr/local/share/texmf/web2c:/usr/share/texmf/web2c:/usr/share/texlive/texmf-dist/web2c:/app/.apt/share/texmf/web2c.
2021-01-22T21:46:03.478942+00:00 app[web.1]:
2021-01-22T21:46:03.478943+00:00 app[web.1]: kpathsea: Running mktexfmt pdflatex.fmt
2021-01-22T21:46:03.478943+00:00 app[web.1]: warning: kpathsea: configuration file texmf.cnf not found in these directories: /etc/texmf/web2c:/usr/local/share/texmf/web2c:/usr/share/texmf/web2c:/usr/share/texlive/texmf-dist/web2c:/app/.apt/share/texmf/web2c.
2021-01-22T21:46:03.478944+00:00 app[web.1]: /app/.apt/usr/bin/mktexfmt: kpsewhich -var-value=TEXMFROOT failed, aborting early.
2021-01-22T21:46:03.478944+00:00 app[web.1]: BEGIN failed--compilation aborted at /app/.apt/usr/bin/mktexfmt line 28.
2021-01-22T21:46:03.478945+00:00 app[web.1]: Error producing PDF.
2021-01-22T21:46:03.478947+00:00 app[web.1]: This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019/Debian) (preloaded format=pdflatex)
2021-01-22T21:46:03.478947+00:00 app[web.1]: I can't find the format file `pdflatex.fmt'!
2021-01-22T21:46:03.478947+00:00 app[web.1]:
2021-01-22T21:46:03.478948+00:00 app[web.1]: ):
Я пытался использовать heroku run bash, чтобы попытаться выяснить, что происходит. Кажется, что все пакеты установлены, но простая команда pandoc не работает, см. вывод ниже.
~ $ pandoc -v
pandoc 2.11.3.2
Compiled with pandoc-types 1.22, texmath 0.12.1, skylighting 0.10.2,
citeproc 0.3.0.3, ipynb 0.1.0.1
User data directory: /app/.local/share/pandoc or /app/.pandoc
Copyright (C) 2006-2020 John MacFarlane. Web: https://pandoc.org
This is free software; see the source for copying conditions. There is no
warranty, not even for merchantability or fitness for a particular purpose.
~ $ pdflatex -v
pdfTeX 3.14159265-2.6-1.40.20 (TeX Live 2019/Debian)
kpathsea version 6.3.1
Copyright 2019 Han The Thanh (pdfTeX) et al.
There is NO warranty. Redistribution of this software is
covered by the terms of both the pdfTeX copyright and
the Lesser GNU General Public License.
For more information about these matters, see the file
named COPYING and the pdfTeX source.
Primary author of pdfTeX: Han The Thanh (pdfTeX) et al.
Compiled with libpng 1.6.37; using libpng 1.6.37
Compiled with zlib 1.2.11; using zlib 1.2.11
Compiled with xpdf version 4.01
~ $ pandoc test.md -o test.pdf
warning: kpathsea: configuration file texmf.cnf not found in these directories: /etc/texmf/web2c:/usr/local/share/texmf/web2c:/usr/share/texmf/web2c:/usr/share/texlive/texmf-dist/web2c:/app/.apt/share/texmf/web2c.
kpathsea: Running mktexfmt pdflatex.fmt
warning: kpathsea: configuration file texmf.cnf not found in these directories: /etc/texmf/web2c:/usr/local/share/texmf/web2c:/usr/share/texmf/web2c:/usr/share/texlive/texmf-dist/web2c:/app/.apt/share/texmf/web2c.
/app/.apt/usr/bin/mktexfmt: kpsewhich -var-value=TEXMFROOT failed, aborting early.
BEGIN failed--compilation aborted at /app/.apt/usr/bin/mktexfmt line 28.
warning: kpathsea: configuration file texmf.cnf not found in these directories: /etc/texmf/web2c:/usr/local/share/texmf/web2c:/usr/share/texmf/web2c:/usr/share/texlive/texmf-dist/web2c:/app/.apt/share/texmf/web2c.
kpathsea: Running mktexfmt pdflatex.fmt
warning: kpathsea: configuration file texmf.cnf not found in these directories: /etc/texmf/web2c:/usr/local/share/texmf/web2c:/usr/share/texmf/web2c:/usr/share/texlive/texmf-dist/web2c:/app/.apt/share/texmf/web2c.
/app/.apt/usr/bin/mktexfmt: kpsewhich -var-value=TEXMFROOT failed, aborting early.
BEGIN failed--compilation aborted at /app/.apt/usr/bin/mktexfmt line 28.
Error producing PDF.
This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019/Debian) (preloaded format=pdflatex)
I can't find the format file `pdflatex.fmt'!
Подход 2: пользовательские сборки
Я также пробовал использовать 2 пользовательских пакета сборки для TeX Live, найденных здесь. и здесь. Это выглядело более многообещающе, но все равно выдает ошибку при конвертации в pdf. См. вывод от heroku run bash ниже.
~ $ pandoc -v
pandoc 2.11.3.2
Compiled with pandoc-types 1.22, texmath 0.12.1, skylighting 0.10.2,
citeproc 0.3.0.3, ipynb 0.1.0.1
User data directory: /app/.local/share/pandoc or /app/.pandoc
Copyright (C) 2006-2020 John MacFarlane. Web: https://pandoc.org
This is free software; see the source for copying conditions. There is no
warranty, not even for merchantability or fitness for a particular purpose.
~ $ pdflatex -v
pdfTeX 3.14159265-2.6-1.40.21 (TeX Live 2020)
kpathsea version 6.3.2
Copyright 2020 Han The Thanh (pdfTeX) et al.
There is NO warranty. Redistribution of this software is
covered by the terms of both the pdfTeX copyright and
the Lesser GNU General Public License.
For more information about these matters, see the file
named COPYING and the pdfTeX source.
Primary author of pdfTeX: Han The Thanh (pdfTeX) et al.
Compiled with libpng 1.6.37; using libpng 1.6.37
Compiled with zlib 1.2.11; using zlib 1.2.11
Compiled with xpdf version 4.02
~ $ pandoc test.md -o test.pdf
Error producing PDF.
! LaTeX Error: File `xcolor.sty' not found.
Type X to quit or <RETURN> to proceed,
or enter new name. (Default extension: sty)
Enter file name:
! Emergency stop.
<read *>
l.36 \IfFileExists
