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The ability to pin versions is handy when having to deal to packages that bootstrap themselves through a chain of former versions. Not using pinned versions in these case could introduce dependency cycles. * guix/build-system/go.scm (guix) (%go-version-rx): Rename to... (%go-pseudo-version-rx): ... this. Simplify the regular expression, which in turns makes it more robust. * guix/build-system/go.scm (go-version->git-ref): Adjust following the above rename. (go-pseudo-version?): New predicate. (go-module-latest-version): Rename to ... (go-module-version-string): ... this. Rename goproxy-url argument to just goproxy. Add a VERSION keyword argument, update docstring and adjust to have it used. (go-module-available-versions): New procedure. (%go.mod-require-directive-rx): Document regexp. (parse-go.mod): Harmonize the way dependencies are recorded to a list of lists rather than a list of pairs, as done for other importers. Rewrite to directly pass multiple values rather than a record object. Filter the replaced modules in a functional style. (go-module->guix-package): Add docstring. [version, pin-versions?]: New arguments. Rename the GOPROXY-URL argument to GOPROXY. Adjust to the new returned value of fetch-go.mod, which is a string. Fail when the provided version doesn't exist. Return a list dependencies and their versions when in pinned versions mode, else just the dependencies. (go-module-recursive-import)[version, pin-versions?]: New arguments. Honor the new arguments and guard against network errors. * guix/scripts/import/go.scm (%default-options): Register a default value for the goproxy argument. (show-help): Document that a version can be specified. Remove the --version argument and add a --pin-versions argument. (%options)[version]: Remove option. [pin-versions]: Add option. (guix-import-go): Adjust so the version provided from the module name is honored, along the new pin-versions? argument. * tests/go.scm: Adjust and add new tests.
124 lines
4.5 KiB
Scheme
124 lines
4.5 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2020 Katherine Cox-Buday <cox.katherine.e@gmail.com>
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;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix scripts import go)
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#:use-module (guix ui)
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#:use-module (guix utils)
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#:use-module (guix scripts)
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#:use-module (guix import go)
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#:use-module (guix scripts import)
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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 (ice-9 match)
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#:use-module (ice-9 format)
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#:use-module (ice-9 receive)
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#:export (guix-import-go))
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;;;
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;;; Command-line options.
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;;;
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(define %default-options
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'((goproxy . "https://proxy.golang.org")))
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(define (show-help)
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(display (G_ "Usage: guix import go PACKAGE-PATH[@VERSION]
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Import and convert the Go module for PACKAGE-PATH. Optionally, a version
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can be specified after the arobas (@) character.\n"))
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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 generate package expressions for all Go modules
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that are not yet in Guix"))
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(display (G_ "
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-p, --goproxy=GOPROXY specify which goproxy server to use"))
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(display (G_ "
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--pin-versions use the exact versions of a module's dependencies"))
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(newline)
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(show-bug-report-information))
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(define %options
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;; Specification of the command-line options.
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(cons* (option '(#\h "help") #f #f
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(lambda args
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(show-help)
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(exit 0)))
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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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(option '(#\p "goproxy") #t #f
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(lambda (opt name arg result)
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(alist-cons 'goproxy
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(string->symbol arg)
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(alist-delete 'goproxy result))))
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(option '("pin-versions") #f #f
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(lambda (opt name arg result)
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(alist-cons 'pin-versions? #t result)))
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%standard-import-options))
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;;;
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;;; Entry point.
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;;;
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(define (guix-import-go . args)
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(define (parse-options)
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;; Return the alist of option values.
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(args-fold* args %options
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(lambda (opt name arg result)
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(leave (G_ "~A: unrecognized option~%") name))
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(lambda (arg result)
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(alist-cons 'argument arg result))
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%default-options))
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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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value)
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(_ #f))
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(reverse opts))))
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(match args
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((spec) ;e.g., github.com/golang/protobuf@v1.3.1
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(receive (name version)
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(package-name->name+version spec)
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(let ((arguments (list name
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#:goproxy (assoc-ref opts 'goproxy)
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#:version version
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#:pin-versions?
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(assoc-ref opts 'pin-versions?))))
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(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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(apply go-module-recursive-import arguments))
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;; Single import.
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(let ((sexp (apply go-module->guix-package arguments)))
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(unless sexp
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(leave (G_ "failed to download meta-data for module '~a'~%")
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module-name))
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sexp)))))
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(()
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(leave (G_ "too few arguments~%")))
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((many ...)
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(leave (G_ "too many arguments~%"))))))
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