guix: texlive-build-system: Generate font metrics.
* guix/build/texlive-build-system.scm (install-as-runfiles): (generate-font-metrics): New function. (build): Use INSTALL-AS-RUNFILES. (%standard-phases): Add new phase.
Nicolas Goaziou
parent
10011abc44
commit
c09a05d06c
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@ -10007,6 +10007,9 @@ and format can be specified with the @code{#:tex-format} argument.
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Different build targets can be specified with the @code{#:build-targets}
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argument, which expects a list of file names.
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It also generates font metrics (i.e., @file{.tfm} files) out of METAFONT
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files whenever possible.
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The build system adds only @code{texlive-bin} and
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@code{texlive-latex-base} (both from @code{(gnu packages tex}) to the
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inputs. Both can be overridden with the arguments @code{#:texlive-bin}
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@ -27,6 +27,7 @@
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#:use-module (ice-9 ftw)
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#:use-module (ice-9 match)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-2)
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#:use-module (srfi srfi-26)
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#:export (%standard-phases
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texlive-build))
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@ -43,11 +44,111 @@
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(negate
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(cut member <> '("." ".." "build" "doc" "source")))))
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(define (install-as-runfiles dir regexp)
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"Install files under DIR matching REGEXP on top of existing runfiles in the
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current tree. Sub-directories below DIR are preserved when looking for the
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runfile to replace. If a file has no matching runfile, it is ignored."
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(let ((runfiles (append-map (cut find-files <>)
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(runfiles-root-directories))))
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(for-each (lambda (file)
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(match (filter
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(cut string-suffix?
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(string-drop file (string-length dir))
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<>)
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runfiles)
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;; Current file is not a runfile. Ignore it.
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(() #f)
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;; One candidate only. Replace it with the one from DIR.
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((destination)
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(let ((target (dirname destination)))
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(install-file file target)
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(format #t "re-generated file ~s in ~s~%"
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(basename file)
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target)))
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;; Multiple candidates! Not much can be done. Hopefully,
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;; this should never happen.
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(_
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(format (current-error-port)
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"warning: ambiguous location for file ~s; ignoring it~%"
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(basename file)))))
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(find-files dir regexp))))
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(define* (delete-drv-files #:rest _)
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"Delete pre-generated \".drv\" files in order to prevent build failures."
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(when (file-exists? "source")
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(for-each delete-file (find-files "source" "\\.drv$"))))
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(define* (generate-font-metrics #:key native-inputs inputs #:allow-other-keys)
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;; Decide what Metafont files to build by comparing them to the expected
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;; font metrics base names. Keep only files for which the two base names
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;; do match.
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(define (font-metrics root)
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(and (file-exists? root)
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(map (cut basename <> ".tfm") (find-files root "\\.tfm$"))))
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(define (font-files directory metrics)
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(if (file-exists? directory)
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(delete-duplicates
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(filter (lambda (f)
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(or (not metrics)
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(member (basename f ".mf") metrics)))
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(find-files directory "\\.mf$")))
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'()))
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;; Metafont files could be scattered across multiple directories. Treat
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;; each sub-directory as a separate font source.
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(define (font-sources root metrics)
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(delete-duplicates (map dirname (font-files root metrics))))
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(define (texlive-input? input)
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(string-prefix? "texlive-" input))
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(and-let* ((local-metrics (font-metrics "fonts/tfm"))
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(local-sources (font-sources "fonts/source" local-metrics))
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((not (null? local-sources))) ;nothing to generate: bail out
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(root (getcwd))
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(metafont
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(cond ((assoc-ref (or native-inputs inputs) "texlive-metafont") =>
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(cut string-append <> "/share/texmf-dist"))
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(else
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(error "Missing 'texlive-metafont' native input"))))
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;; Collect all font source files from texlive (native-)inputs so
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;; "mf" can know where to look for them.
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(font-inputs
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(delete-duplicates
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(append-map (match-lambda
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(((? (negate texlive-input?)) . _) '())
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(("texlive-bin" . _) '())
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(("texlive-metafont" . _)
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(list (string-append metafont "/metafont/base")))
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((_ . input)
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(font-sources input #f)))
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(or native-inputs inputs)))))
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;; Tell mf where to find "mf.base".
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(setenv "MFBASES" (string-append metafont "/web2c/"))
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(mkdir-p "build")
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(for-each
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(lambda (source)
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;; Tell "mf" where are the font source files. In case current package
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;; provides multiple sources, treat them separately.
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(setenv "MFINPUTS"
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(string-join (cons (string-append root "/" source)
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font-inputs)
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":"))
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;; Build font metrics (tfm).
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(with-directory-excursion source
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(for-each (lambda (font)
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(format #t "building font ~a~%" font)
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(invoke "mf" "-progname=mf"
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(string-append "-output-directory="
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root "/build")
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(string-append "\\"
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"mode:=ljfour; "
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"mag:=1; "
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"batchmode; "
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"input "
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(basename font ".mf"))))
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(font-files "." local-metrics)))
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;; Refresh font metrics at the appropriate location.
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(install-as-runfiles "build" "\\.tfm$"))
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local-sources)))
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(define (compile-with-latex engine format output file)
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(invoke engine
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"-interaction=nonstopmode"
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@ -86,42 +187,14 @@
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targets))
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;; Now move generated files from the "build" directory into the rest of
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;; the source tree, effectively replacing downloaded files.
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;;
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;; Documentation may have been generated, but replace only runfiles,
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;; i.e., files that belong neither to "doc" nor "source" trees.
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;;
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;; In TeX Live, all packages are fully pre-generated. As a consequence,
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;; a generated file from the "build" top directory absent from the rest
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;; of the tree is deemed unnecessary and can safely be ignored.
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(let ((runfiles (append-map (cut find-files <>)
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(runfiles-root-directories))))
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(for-each (lambda (file)
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(match (filter
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(cut string-suffix?
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(string-drop file (string-length "build"))
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<>)
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runfiles)
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;; Current file is not a runfile. Ignore it.
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(() #f)
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;; One candidate only. Replace it with the one just
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;; generated.
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((destination)
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(let ((target (dirname destination)))
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(install-file file target)
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(format #t "re-generated file ~s in ~s~%"
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(basename file)
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target)))
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;; Multiple candidates! Not much can be done.
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;; Hopefully, this should never happen.
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(_
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(format (current-error-port)
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"warning: ambiguous localization of file ~s; \
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ignoring it~%"
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(basename file)))))
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;; Preserve the relative file name of the generated file in
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;; order to be more accurate when looking for the
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;; corresponding runfile in the tree.
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(find-files "build"))))))
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;; a generated file from the "build" top directory absent from the rest of
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;; the tree is deemed unnecessary and can safely be ignored.
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(install-as-runfiles "build" "."))))
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(define* (install #:key outputs #:allow-other-keys)
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(let ((out (assoc-ref outputs "out"))
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@ -147,6 +220,7 @@ ignoring it~%"
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(delete 'bootstrap)
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(delete 'configure)
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(add-before 'build 'delete-drv-files delete-drv-files)
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(add-after 'delete-drv-files 'generate-font-metrics generate-font-metrics)
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(replace 'build build)
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(delete 'check)
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(replace 'install install)))
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