import/cran: Always operate on source directory.
Extracting the source tarball multiple times is very slow and a speedup of >2x (without network I/O) can be achieved by coalescing all NEEDS-X? functions into a single one, which extracts a tarball only once. * guix/import/cran.scm (tarball-needs-fortran?): Remove unused function. (needs-fortran?): Ditto. (tarball-files-match-pattern?): Ditto. (tarball-needs-zlib?): Ditto. (needs-zlib?): Ditto. (tarball-needs-pkg-config?): Ditto. (needs-pkg-config?): Ditto. (source-dir->dependencies): New function. (source->dependencies): New function. (description->package): Use it.
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@ -440,28 +440,12 @@ (define (transform-sysname sysname)
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(define cran-guix-name (cut guix-name "r-" <>))
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(define (tarball-needs-fortran? tarball)
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"Check if the TARBALL contains Fortran source files."
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(define (check pattern)
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(parameterize ((current-error-port (%make-void-port "rw+"))
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(current-output-port (%make-void-port "rw+")))
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(zero? (system* "tar" "--wildcards" "--list" pattern "-f" tarball))))
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(or (check "*.f90")
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(check "*.f95")
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(check "*.f")))
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(define (directory-needs-fortran? dir)
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"Check if the directory DIR contains Fortran source files."
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(match (find-files dir "\\.f(90|95)$")
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(() #f)
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(_ #t)))
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(define (needs-fortran? thing tarball?)
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"Check if the THING contains Fortran source files."
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(if tarball?
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(tarball-needs-fortran? thing)
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(directory-needs-fortran? thing)))
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(define (files-match-pattern? directory regexp . file-patterns)
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"Return #T if any of the files matching FILE-PATTERNS in the DIRECTORY match
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the given REGEXP."
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@ -477,53 +461,36 @@ (define (files-match-pattern? directory regexp . file-patterns)
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(else (loop))))))))
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(apply find-files directory file-patterns))))
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(define (tarball-files-match-pattern? tarball regexp . file-patterns)
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"Return #T if any of the files represented by FILE-PATTERNS in the TARBALL
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match the given REGEXP."
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(call-with-temporary-directory
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(lambda (dir)
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(parameterize ((current-error-port (%make-void-port "rw+")))
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(apply system* "tar"
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"xf" tarball "-C" dir
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`("--wildcards" ,@file-patterns)))
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(files-match-pattern? dir regexp))))
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(define (directory-needs-zlib? dir)
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"Return #T if any of the Makevars files in the src directory DIR contain a
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zlib linker flag."
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(files-match-pattern? dir "-lz" "(Makevars.*|configure.*)"))
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(define (tarball-needs-zlib? tarball)
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"Return #T if any of the Makevars files in the src directory of the TARBALL
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contain a zlib linker flag."
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(tarball-files-match-pattern?
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tarball "-lz"
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"*/src/Makevars*" "*/src/configure*" "*/configure*"))
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(define (needs-zlib? thing tarball?)
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"Check if the THING contains files indicating a dependency on zlib."
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(if tarball?
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(tarball-needs-zlib? thing)
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(directory-needs-zlib? thing)))
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(define (directory-needs-pkg-config? dir)
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"Return #T if any of the Makevars files in the src directory DIR reference
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the pkg-config tool."
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(files-match-pattern? dir "pkg-config"
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"(Makevars.*|configure.*)"))
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(define (tarball-needs-pkg-config? tarball)
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"Return #T if any of the Makevars files in the src directory of the TARBALL
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reference the pkg-config tool."
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(tarball-files-match-pattern?
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tarball "pkg-config"
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"*/src/Makevars*" "*/src/configure*" "*/configure*"))
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(define (source-dir->dependencies dir)
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"Guess dependencies of R package source in DIR and return (INPUTS
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NATIVE-INPUTS)."
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(list
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(if (directory-needs-zlib? dir) '("zlib") '())
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(append
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(if (directory-needs-pkg-config? dir) '("pkg-config") '())
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(if (directory-needs-fortran? dir) '("gfortran") '()))))
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(define (needs-pkg-config? thing tarball?)
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"Check if the THING contains files indicating a dependency on pkg-config."
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(define (source->dependencies source tarball?)
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"SOURCE-DIR->DEPENDENCIES, but for directories and tarballs as indicated
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by TARBALL?"
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(if tarball?
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(tarball-needs-pkg-config? thing)
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(directory-needs-pkg-config? thing)))
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(call-with-temporary-directory
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(lambda (dir)
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(parameterize ((current-error-port (%make-void-port "rw+")))
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(system* "tar" "xf" source "-C" dir))
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(source-dir->dependencies dir)))
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(source-dir->dependencies source)))
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(define (needs-knitr? meta)
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(member "knitr" (listify meta "VignetteBuilder")))
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@ -575,8 +542,12 @@ (define* (description->package repository meta #:key (license-prefix identity)
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(git? 'git)
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(hg? 'hg)
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(else #f))))
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(tarball? (not (or git? hg?)))
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(source-inputs-all (source->dependencies source tarball?))
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(source-inputs (car source-inputs-all))
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(source-native-inputs (cadr source-inputs-all))
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(sysdepends (append
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(if (needs-zlib? source (not (or git? hg?))) '("zlib") '())
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source-inputs
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(filter (lambda (name)
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(not (member name invalid-packages)))
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(map string-downcase (listify meta "SystemRequirements")))))
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@ -636,10 +607,7 @@ (define* (description->package repository meta #:key (license-prefix identity)
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,@(maybe-inputs (map transform-sysname sysdepends))
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,@(maybe-inputs (map cran-guix-name propagate) 'propagated-inputs)
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,@(maybe-inputs
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`(,@(if (needs-fortran? source (not (or git? hg?)))
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'("gfortran") '())
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,@(if (needs-pkg-config? source (not (or git? hg?)))
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'("pkg-config") '())
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`(,@source-native-inputs
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,@(if (needs-knitr? meta)
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'("r-knitr") '()))
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'native-inputs)
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