From 31cd9a50402ac64e83fce35a7c789613d6ad156a Mon Sep 17 00:00:00 2001
From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Date: Fri, 19 May 2023 23:27:38 +0200
Subject: [PATCH] guix: import: Handle native inputs in texlive importer.

* guix/import/texlive.scm (tlpdb->package): Add TEXLIVE-METAFONT as a native
input whenever font metrics are to be generated.
* tests/texlive.scm (%fake-tlpdb): Add test data.
("texlive->guix-package, with METAFONT files"): New test.
---
 guix/import/texlive.scm | 15 ++++++++++++
 tests/texlive.scm       | 53 ++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/guix/import/texlive.scm b/guix/import/texlive.scm
index 33a0e7d1d9..fd772d3133 100644
--- a/guix/import/texlive.scm
+++ b/guix/import/texlive.scm
@@ -315,6 +315,21 @@ of those files are returned that are unexpectedly installed."
               '((outputs '("out" "doc")))
               '())
         (build-system texlive-build-system)
+        ;; Texlive build system generates font metrics whenever a font metrics
+        ;; file has the same base name as a Metafont file.
+        ,@(or (and-let* ((runfiles (assoc-ref data 'runfiles))
+                         (metrics
+                          (filter-map (lambda (f)
+                                        (and (string-suffix? ".tfm" f)
+                                             (basename f ".tfm")))
+                                      runfiles))
+                         ((not (null? metrics)))
+                         ((any (lambda (f)
+                                 (and (string-suffix? ".mf" f)
+                                      (member (basename f ".mf") metrics)))
+                               runfiles)))
+                '((native-inputs (list texlive-metafont))))
+              '())
         ,@(match filtered-depends
             (() '())
             (inputs
diff --git a/tests/texlive.scm b/tests/texlive.scm
index 9f4c965139..704c86e24a 100644
--- a/tests/texlive.scm
+++ b/tests/texlive.scm
@@ -195,7 +195,24 @@ completely compatible with Plain TeX.")
             "texmf-dist/tex/texsis/base/thesis.txs"
             "texmf-dist/tex/texsis/base/twin.txs"
             "texmf-dist/tex/texsis/config/texsis.ini"))
-        (catalogue-license . "lppl")))))
+        (catalogue-license . "lppl")))
+    ("trsym"
+     (name . "trsym")
+     (shortdesc . "Symbols for transformations")
+     (longdesc . "The bundle provides Metafont...")
+     (docfiles "texmf-dist/doc/latex/trsym/README"
+               "texmf-dist/doc/latex/trsym/manifest.txt"
+               "texmf-dist/doc/latex/trsym/trsym.pdf")
+     (srcfiles "texmf-dist/source/latex/trsym/trsym.dtx"
+               "texmf-dist/source/latex/trsym/trsym.ins")
+     (runfiles "texmf-dist/fonts/source/public/trsym/trsy.mf"
+               "texmf-dist/fonts/source/public/trsym/trsy10.mf"
+               "texmf-dist/fonts/source/public/trsym/trsy12.mf"
+               "texmf-dist/fonts/tfm/public/trsym/trsy10.tfm"
+               "texmf-dist/fonts/tfm/public/trsym/trsy12.tfm"
+               "texmf-dist/tex/latex/trsym/trsym.sty"
+               "texmf-dist/tex/latex/trsym/utrsy.fd")
+     (catalogue-license . "lppl"))))
 
 (test-assert "texlive->guix-package, no docfiles"
   ;; Replace network resources with sample data.
@@ -277,6 +294,40 @@ completely compatible with Plain TeX.")
                (format #t "~s~%" result)
                (pk 'fail result #f)))))))
 
+(test-assert "texlive->guix-package, with METAFONT files"
+  ;; Replace network resources with sample data.
+  (mock ((guix build svn) svn-fetch
+         (lambda* (url revision directory
+                       #:key (svn-command "svn")
+                       (user-name #f)
+                       (password #f)
+                       (recursive? #t))
+           (mkdir-p directory)
+           (with-output-to-file (string-append directory "/foo")
+             (lambda ()
+               (display "source")))))
+        (let ((result (texlive->guix-package "trsym"
+                                             #:package-database
+                                             (lambda _ %fake-tlpdb))))
+          (match result
+            (('package
+               ('name _)
+               ('version _)
+               ('source _)
+               ('outputs _)
+               ('build-system _)
+               ('native-inputs
+                ('list 'texlive-metafont))
+               ('home-page (? string?))
+               ('synopsis (? string?))
+               ('description (? string?))
+               ('license _))
+             #true)
+            (_
+             (begin
+               (format #t "~s~%" result)
+               (pk 'fail result #f)))))))
+
 (test-assert "texlive->guix-package, with catalogue entry, no inputs"
   ;; Replace network resources with sample data.
   (mock ((guix build svn) svn-fetch