maint: Add 'update-guix-package' target.
* build-aux/update-guix-package.scm: New file. * Makefile.am (EXTRA_DIST): Add it. (update-guix-package): New target. (.PHONY): Add it. * gnu/packages/package-management.scm (guix): Mention it.
This commit is contained in:
Ludovic Courtès
parent
994a149479
commit
94fa8d7616
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@ -416,6 +416,7 @@ EXTRA_DIST = \
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build-aux/download.scm \
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build-aux/generate-authors.scm \
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build-aux/test-driver.scm \
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build-aux/update-guix-package.scm \
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build-aux/run-system-tests.scm \
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d3.v3.js \
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graph.js \
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@ -539,6 +540,12 @@ gen-AUTHORS:
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"$(top_srcdir)" "$(distdir)/AUTHORS"; \
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fi
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update-guix-package:
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git rev-parse HEAD
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$(top_builddir)/pre-inst-env "$(GUILE)" \
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$(top_srcdir)/build-aux/update-guix-package.scm \
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"`git rev-parse HEAD`"
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# Make sure we're not shipping a file that embeds a local /gnu/store file name.
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assert-no-store-file-names:
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$(AM_V_at)if grep -r --exclude=*.texi --exclude=*.info \
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@ -574,6 +581,7 @@ hydra-jobs.scm: $(GOBJECTS)
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.PHONY: assert-no-store-file-names assert-binaries-available
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.PHONY: assert-final-inputs-self-contained
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.PHONY: clean-go make-go
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.PHONY: update-guix-package
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## -------------- ##
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## Silent rules. ##
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@ -0,0 +1,135 @@
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;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 Ludovic Courtès <ludo@gnu.org>
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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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;;; Commentary:
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;;;
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;;; This scripts updates the definition of the 'guix' package in Guix for the
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;;; current commit. It requires Git to be installed.
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;;;
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;;; Code:
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(use-modules (guix)
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(guix git-download)
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(guix upstream)
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(guix utils)
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(guix base32)
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(guix build utils)
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(gnu packages package-management)
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(ice-9 match))
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(define %top-srcdir
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(string-append (current-source-directory) "/.."))
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(define version-controlled?
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(git-predicate %top-srcdir))
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(define (package-definition-location)
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"Return the source properties of the definition of the 'guix' package."
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(call-with-input-file (location-file (package-location guix))
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(lambda (port)
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(let loop ()
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(match (read port)
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((? eof-object?)
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(error "definition of 'guix' package could not be found"
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(port-filename port)))
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(('define-public 'guix value)
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(source-properties value))
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(_
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(loop)))))))
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(define* (update-definition commit hash
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#:key version old-hash)
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"Return a one-argument procedure that takes a string, the definition of the
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'guix' package, and returns a string, the update definition for VERSION,
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COMMIT."
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(define (linear-offset str line column)
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;; Return the offset in characters to reach LINE and COLUMN (both
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;; zero-indexed) in STR.
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(call-with-input-string str
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(lambda (port)
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(let loop ((offset 0))
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(cond ((and (= (port-column port) column)
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(= (port-line port) line))
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offset)
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((eof-object? (read-char port))
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(error "line and column not reached!"
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str))
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(else
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(loop (+ 1 offset))))))))
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(define (update-hash str)
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;; Replace OLD-HASH with HASH in STR.
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(string-replace-substring str
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(bytevector->nix-base32-string old-hash)
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(bytevector->nix-base32-string hash)))
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(lambda (str)
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(match (call-with-input-string str read)
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(('let (('version old-version)
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('commit old-commit)
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('revision old-revision))
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defn)
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(let* ((location (source-properties defn))
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(line (assq-ref location 'line))
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(column 0)
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(offset (linear-offset str line column)))
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(string-append (format #f "(let ((version \"~a\")
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(commit \"~a\")
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(revision ~a))\n"
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(or version old-version)
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commit
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(if (and version
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(not (string=? version old-version)))
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0
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(+ 1 old-revision)))
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(string-drop (update-hash str) offset))))
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(exp
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(error "'guix' package definition is not as expected" exp)))))
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(define (main . args)
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(match args
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((commit version)
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(with-store store
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(let* ((source (add-to-store store
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"guix-checkout" ;dummy name
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#t "sha256" %top-srcdir
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#:select? version-controlled?))
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(hash (query-path-hash store source))
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(location (package-definition-location))
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(old-hash (origin-sha256 (package-source guix))))
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(edit-expression location
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(update-definition commit hash
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#:old-hash old-hash
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#:version version))
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;; Re-add SOURCE to the store, but this time under the real name used
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;; in the 'origin'. This allows us to build the package without
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;; having to make a real checkout; thus, it also works when working
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;; on a private branch.
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(reload-module
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(resolve-module '(gnu packages package-management)))
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(pk source
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(add-to-store store
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(origin-file-name (package-source guix))
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#t "sha256" source)))))
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((commit)
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;; Automatically deduce the version and revision numbers.
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(main commit #f))))
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(apply main (cdr (command-line)))
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@ -70,6 +70,8 @@
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(define-public guix
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;; Latest version of Guix, which may or may not correspond to a release.
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;; Note: the 'update-guix-package.scm' script expects this definition to
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;; start precisely like this.
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(let ((version "0.12.0")
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(commit "25a49294caf2386e65fc1b12a2508324be0b1cc2")
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(revision 9))
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