import: stackage: Support recursive importing.
* guix/import/hackage.scm (hackage-name->package-name): Export procedure. * guix/import/stackage.scm (lts-info-packages-lts-info): Fix match expression. (stackage-recursive-import): New procedure. (stackage->guix-package): Memoize results. * guix/scripts/import/stackage.scm (show-help, %options, guix-import-stackage): Support recursive importing. * doc/guix.texi (Invoking guix import): Document option.master
Ricardo Wurmus
Ricardo Wurmus
parent
b5d1286f2d
commit
a3ece51a29
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@ -6699,9 +6699,14 @@ Specific command-line options are:
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@itemx -t
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Do not include dependencies required only by the test suites.
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@item --lts-version=@var{version}
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@itemx -r @var{version}
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@itemx -l @var{version}
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@var{version} is the desired LTS release version. If omitted the latest
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release is used.
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@item --recursive
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@itemx -r
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Traverse the dependency graph of the given upstream package recursively
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and generate package expressions for all those packages that are not yet
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in Guix.
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@end table
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The command below imports metadata for the @code{HTTP} Haskell package
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@ -44,6 +44,7 @@
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%hackage-updater
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guix-package->hackage-name
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hackage-name->package-name
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hackage-fetch
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hackage-source-url
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hackage-cabal-url
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@ -1,5 +1,6 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 Federico Beffa <beffa@fbengineering.ch>
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;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -25,10 +26,12 @@
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#:use-module (srfi srfi-35)
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#:use-module (guix import json)
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#:use-module (guix import hackage)
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#:use-module (guix import utils)
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#:use-module (guix memoization)
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#:use-module (guix packages)
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#:use-module (guix upstream)
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#:export (stackage->guix-package
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stackage-recursive-import
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%stackage-updater))
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@ -45,9 +48,9 @@
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(_ #f)))
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(define (lts-info-packages lts-info)
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"Retruns the alist of packages contained in LTS-INFO."
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"Returns the alist of packages contained in LTS-INFO."
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(match lts-info
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((_ ("packages" pkg ...)) pkg)
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((("packages" pkg ...) . _) pkg)
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(_ '())))
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(define (leave-with-message fmt . args)
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@ -85,25 +88,33 @@
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(define (hackage-name-version name version)
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(and version (string-append name "@" version)))
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(define* (stackage->guix-package package-name ; upstream name
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#:key
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(include-test-dependencies? #t)
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(lts-version "")
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(packages-info
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(lts-info-packages
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(stackage-lts-info-fetch lts-version))))
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"Fetch Cabal file for PACKAGE-NAME from hackage.haskell.org. The retrieved
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(define stackage->guix-package
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(memoize
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(lambda* (package-name ; upstream name
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#:key
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(include-test-dependencies? #t)
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(lts-version "")
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(packages-info
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(lts-info-packages
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(stackage-lts-info-fetch lts-version))))
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"Fetch Cabal file for PACKAGE-NAME from hackage.haskell.org. The retrieved
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vesion corresponds to the version of PACKAGE-NAME specified in the LTS-VERSION
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release at stackage.org. Return the `package' S-expression corresponding to
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that package, or #f on failure. PACKAGES-INFO is the alist with the packages
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included in the Stackage LTS release."
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(let* ((version (lts-package-version packages-info package-name))
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(name-version (hackage-name-version package-name version)))
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(if name-version
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(hackage->guix-package name-version
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#:include-test-dependencies?
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include-test-dependencies?)
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(leave-with-message "~a: Stackage package not found" package-name))))
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(let* ((version (lts-package-version packages-info package-name))
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(name-version (hackage-name-version package-name version)))
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(if name-version
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(hackage->guix-package name-version
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#:include-test-dependencies?
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include-test-dependencies?)
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(leave-with-message "~a: Stackage package not found" package-name))))))
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(define (stackage-recursive-import package-name . args)
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(recursive-import package-name #f
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#:repo->guix-package (lambda (name repo)
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(apply stackage->guix-package (cons name args)))
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#:guix-name hackage-name->package-name))
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;;;
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@ -1,5 +1,6 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 Federico Beffa <beffa@fbengineering.ch>
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;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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@ -26,6 +27,7 @@
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-11)
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#:use-module (srfi srfi-37)
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#:use-module (srfi srfi-41)
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#:use-module (ice-9 match)
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#:use-module (ice-9 format)
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#:export (guix-import-stackage))
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@ -43,11 +45,13 @@
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(display (G_ "Usage: guix import stackage PACKAGE-NAME
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Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
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(display (G_ "
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-r VERSION, --lts-version=VERSION
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-l VERSION, --lts-version=VERSION
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specify the LTS version to use"))
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(display (G_ "
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-h, --help display this help and exit"))
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(display (G_ "
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-r, --recursive import packages recursively"))
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(display (G_ "
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-t, --no-test-dependencies don't include test-only dependencies"))
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(display (G_ "
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-V, --version display version information and exit"))
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@ -68,11 +72,14 @@ Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
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(alist-cons 'include-test-dependencies? #f
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(alist-delete 'include-test-dependencies?
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result))))
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(option '(#\r "lts-version") #t #f
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(option '(#\l "lts-version") #t #f
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(lambda (opt name arg result)
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(alist-cons 'lts-version arg
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(alist-delete 'lts-version
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result))))
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(option '(#\r "recursive") #f #f
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(lambda (opt name arg result)
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(alist-cons 'recursive #t result)))
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%standard-import-options))
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@ -90,6 +97,27 @@ Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
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(alist-cons 'argument arg result))
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%default-options))
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(define (run-importer package-name opts error-fn)
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(let* ((arguments (list
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package-name
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#:include-test-dependencies?
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(assoc-ref opts 'include-test-dependencies?)
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#:lts-version (assoc-ref opts 'lts-version)))
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(sexp (if (assoc-ref opts 'recursive)
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;; Recursive import
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(map (match-lambda
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((and ('package ('name name) . rest) pkg)
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`(define-public ,(string->symbol name)
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,pkg))
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(_ #f))
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(reverse
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(stream->list
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(apply stackage-recursive-import arguments))))
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;; Single import
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(apply stackage->guix-package arguments))))
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(unless sexp (error-fn))
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sexp))
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(let* ((opts (parse-options))
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(args (filter-map (match-lambda
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(('argument . value)
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@ -99,15 +127,11 @@ Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
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(match args
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((package-name)
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(with-error-handling
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(let ((sexp (stackage->guix-package
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package-name
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#:include-test-dependencies?
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(assoc-ref opts 'include-test-dependencies?)
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#:lts-version (assoc-ref opts 'lts-version))))
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(unless sexp
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(leave (G_ "failed to download cabal file for package '~a'~%")
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package-name))
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sexp)))
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(run-importer package-name opts
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(lambda ()
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(leave (G_ "failed to download cabal file \
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for package '~a'~%")
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package-name)))))
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(()
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(leave (G_ "too few arguments~%")))
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((many ...)
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