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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.
gn-latest-20200428
Ricardo Wurmus 3 years ago
committed by Ricardo Wurmus
parent
commit
a3ece51a29
No known key found for this signature in database GPG Key ID: 197A5888235FACAC
  1. 7
      doc/guix.texi
  2. 1
      guix/import/hackage.scm
  3. 45
      guix/import/stackage.scm
  4. 46
      guix/scripts/import/stackage.scm

7
doc/guix.texi

@ -6699,9 +6699,14 @@ Specific command-line options are:
@itemx -t
Do not include dependencies required only by the test suites.
@item --lts-version=@var{version}
@itemx -r @var{version}
@itemx -l @var{version}
@var{version} is the desired LTS release version. If omitted the latest
release is used.
@item --recursive
@itemx -r
Traverse the dependency graph of the given upstream package recursively
and generate package expressions for all those packages that are not yet
in Guix.
@end table
The command below imports metadata for the @code{HTTP} Haskell package

1
guix/import/hackage.scm

@ -44,6 +44,7 @@
%hackage-updater
guix-package->hackage-name
hackage-name->package-name
hackage-fetch
hackage-source-url
hackage-cabal-url

45
guix/import/stackage.scm

@ -1,5 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Federico Beffa <beffa@fbengineering.ch>
;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; This file is part of GNU Guix.
;;;
@ -25,10 +26,12 @@
#:use-module (srfi srfi-35)
#:use-module (guix import json)
#:use-module (guix import hackage)
#:use-module (guix import utils)
#:use-module (guix memoization)
#:use-module (guix packages)
#:use-module (guix upstream)
#:export (stackage->guix-package
stackage-recursive-import
%stackage-updater))
@ -45,9 +48,9 @@
(_ #f)))
(define (lts-info-packages lts-info)
"Retruns the alist of packages contained in LTS-INFO."
"Returns the alist of packages contained in LTS-INFO."
(match lts-info
((_ ("packages" pkg ...)) pkg)
((("packages" pkg ...) . _) pkg)
(_ '())))
(define (leave-with-message fmt . args)
@ -85,25 +88,33 @@
(define (hackage-name-version name version)
(and version (string-append name "@" version)))
(define* (stackage->guix-package package-name ; upstream name
#:key
(include-test-dependencies? #t)
(lts-version "")
(packages-info
(lts-info-packages
(stackage-lts-info-fetch lts-version))))
"Fetch Cabal file for PACKAGE-NAME from hackage.haskell.org. The retrieved
(define stackage->guix-package
(memoize
(lambda* (package-name ; upstream name
#:key
(include-test-dependencies? #t)
(lts-version "")
(packages-info
(lts-info-packages
(stackage-lts-info-fetch lts-version))))
"Fetch Cabal file for PACKAGE-NAME from hackage.haskell.org. The retrieved
vesion corresponds to the version of PACKAGE-NAME specified in the LTS-VERSION
release at stackage.org. Return the `package' S-expression corresponding to
that package, or #f on failure. PACKAGES-INFO is the alist with the packages
included in the Stackage LTS release."
(let* ((version (lts-package-version packages-info package-name))
(name-version (hackage-name-version package-name version)))
(if name-version
(hackage->guix-package name-version
#:include-test-dependencies?
include-test-dependencies?)
(leave-with-message "~a: Stackage package not found" package-name))))
(let* ((version (lts-package-version packages-info package-name))
(name-version (hackage-name-version package-name version)))
(if name-version
(hackage->guix-package name-version
#:include-test-dependencies?
include-test-dependencies?)
(leave-with-message "~a: Stackage package not found" package-name))))))
(define (stackage-recursive-import package-name . args)
(recursive-import package-name #f
#:repo->guix-package (lambda (name repo)
(apply stackage->guix-package (cons name args)))
#:guix-name hackage-name->package-name))
;;;

46
guix/scripts/import/stackage.scm

@ -1,5 +1,6 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Federico Beffa <beffa@fbengineering.ch>
;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
;;;
;;; This file is part of GNU Guix.
;;;
@ -26,6 +27,7 @@
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-37)
#:use-module (srfi srfi-41)
#:use-module (ice-9 match)
#:use-module (ice-9 format)
#:export (guix-import-stackage))
@ -43,11 +45,13 @@
(display (G_ "Usage: guix import stackage PACKAGE-NAME
Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
(display (G_ "
-r VERSION, --lts-version=VERSION
-l VERSION, --lts-version=VERSION
specify the LTS version to use"))
(display (G_ "
-h, --help display this help and exit"))
(display (G_ "
-r, --recursive import packages recursively"))
(display (G_ "
-t, --no-test-dependencies don't include test-only dependencies"))
(display (G_ "
-V, --version display version information and exit"))
@ -68,11 +72,14 @@ Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
(alist-cons 'include-test-dependencies? #f
(alist-delete 'include-test-dependencies?
result))))
(option '(#\r "lts-version") #t #f
(option '(#\l "lts-version") #t #f
(lambda (opt name arg result)
(alist-cons 'lts-version arg
(alist-delete 'lts-version
result))))
(option '(#\r "recursive") #f #f
(lambda (opt name arg result)
(alist-cons 'recursive #t result)))
%standard-import-options))
@ -90,6 +97,27 @@ Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
(alist-cons 'argument arg result))
%default-options))
(define (run-importer package-name opts error-fn)
(let* ((arguments (list
package-name
#:include-test-dependencies?
(assoc-ref opts 'include-test-dependencies?)
#:lts-version (assoc-ref opts 'lts-version)))
(sexp (if (assoc-ref opts 'recursive)
;; Recursive import
(map (match-lambda
((and ('package ('name name) . rest) pkg)
`(define-public ,(string->symbol name)
,pkg))
(_ #f))
(reverse
(stream->list
(apply stackage-recursive-import arguments))))
;; Single import
(apply stackage->guix-package arguments))))
(unless sexp (error-fn))
sexp))
(let* ((opts (parse-options))
(args (filter-map (match-lambda
(('argument . value)
@ -99,15 +127,11 @@ Import and convert the LTS Stackage package for PACKAGE-NAME.\n"))
(match args
((package-name)
(with-error-handling
(let ((sexp (stackage->guix-package
package-name
#:include-test-dependencies?
(assoc-ref opts 'include-test-dependencies?)
#:lts-version (assoc-ref opts 'lts-version))))
(unless sexp
(leave (G_ "failed to download cabal file for package '~a'~%")
package-name))
sexp)))
(run-importer package-name opts
(lambda ()
(leave (G_ "failed to download cabal file \
for package '~a'~%")
package-name)))))
(()
(leave (G_ "too few arguments~%")))
((many ...)

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