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guix: Add guard to texlive-configuration profile hook.

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It is possible to generate a profile where this hook will crash, as the
texmf.cnf file does not exist to be patched by substitute*. A simple example
is the profile just containing texlive-fonts-txfonts.

* guix/profiles.scm (texlive-configuration): Check that the texmf.cnf file
exists before trying to change it.
This commit is contained in:
Christopher Baines 2019-01-17 21:00:19 +00:00
parent 6654f8c144
commit cf22e99f02
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GPG Key ID: 5E28A33B0B84F577
1 changed files with 9 additions and 6 deletions
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15
guix/profiles.scm
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@ -1363,12 +1363,15 @@ MANIFEST."
(manifest-entries manifest))
#:create-all-directories? #t
#:log-port (%make-void-port "w"))
(substitute* (string-append #$output
"/share/texmf-dist/web2c/texmf.cnf")
(("^TEXMFROOT = .*")
(string-append "TEXMFROOT = " #$output "/share\n"))
(("^TEXMF = .*")
"TEXMF = $TEXMFROOT/share/texmf-dist\n"))
(let ((texmf.cnf (string-append
#$output
"/share/texmf-dist/web2c/texmf.cnf")))
(when (file-exists? texmf.cnf)
(substitute* texmf.cnf
(("^TEXMFROOT = .*")
(string-append "TEXMFROOT = " #$output "/share\n"))
(("^TEXMF = .*")
"TEXMF = $TEXMFROOT/share/texmf-dist\n"))))
#t)))
(with-monad %store-monad