363 lines
14 KiB
Scheme
363 lines
14 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
|
||
;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2019 Ludovic Courtès <ludo@gnu.org>
|
||
;;;
|
||
;;; This file is part of GNU Guix.
|
||
;;;
|
||
;;; GNU Guix is free software; you can redistribute it and/or modify it
|
||
;;; under the terms of the GNU General Public License as published by
|
||
;;; the Free Software Foundation; either version 3 of the License, or (at
|
||
;;; your option) any later version.
|
||
;;;
|
||
;;; GNU Guix is distributed in the hope that it will be useful, but
|
||
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
;;; GNU General Public License for more details.
|
||
;;;
|
||
;;; You should have received a copy of the GNU General Public License
|
||
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
|
||
|
||
(define-module (guix scripts archive)
|
||
#:use-module (guix config)
|
||
#:use-module (guix utils)
|
||
#:use-module (guix combinators)
|
||
#:use-module ((guix build utils) #:select (mkdir-p))
|
||
#:use-module ((guix serialization) #:select (restore-file))
|
||
#:use-module (guix store)
|
||
#:use-module (guix status)
|
||
#:use-module (guix grafts)
|
||
#:use-module (guix packages)
|
||
#:use-module (guix derivations)
|
||
#:use-module (guix monads)
|
||
#:use-module (guix ui)
|
||
#:use-module (guix pki)
|
||
#:use-module (gcrypt pk-crypto)
|
||
#:use-module (guix scripts)
|
||
#:use-module (guix scripts build)
|
||
#:use-module (gnu packages)
|
||
#:use-module (ice-9 match)
|
||
#:use-module (ice-9 format)
|
||
#:use-module (ice-9 rdelim)
|
||
#:use-module (srfi srfi-1)
|
||
#:use-module (srfi srfi-11)
|
||
#:use-module (srfi srfi-26)
|
||
#:use-module (srfi srfi-37)
|
||
#:use-module (ice-9 binary-ports)
|
||
#:export (guix-archive
|
||
options->derivations+files))
|
||
|
||
|
||
;;;
|
||
;;; Command-line options.
|
||
;;;
|
||
|
||
(define %default-options
|
||
;; Alist of default option values.
|
||
`((system . ,(%current-system))
|
||
(substitutes? . #t)
|
||
(build-hook? . #t)
|
||
(graft? . #t)
|
||
(print-build-trace? . #t)
|
||
(print-extended-build-trace? . #t)
|
||
(multiplexed-build-output? . #t)
|
||
(verbosity . 2)
|
||
(debug . 0)))
|
||
|
||
(define (show-help)
|
||
(display (G_ "Usage: guix archive [OPTION]... PACKAGE...
|
||
Export/import one or more packages from/to the store.\n"))
|
||
(display (G_ "
|
||
--export export the specified files/packages to stdout"))
|
||
(display (G_ "
|
||
-r, --recursive combined with '--export', include dependencies"))
|
||
(display (G_ "
|
||
--import import from the archive passed on stdin"))
|
||
(display (G_ "
|
||
--missing print the files from stdin that are missing"))
|
||
(display (G_ "
|
||
-x, --extract=DIR extract the archive on stdin to DIR"))
|
||
(newline)
|
||
(display (G_ "
|
||
--generate-key[=PARAMETERS]
|
||
generate a key pair with the given parameters"))
|
||
(display (G_ "
|
||
--authorize authorize imports signed by the public key on stdin"))
|
||
(newline)
|
||
(display (G_ "
|
||
-e, --expression=EXPR build the package or derivation EXPR evaluates to"))
|
||
(display (G_ "
|
||
-S, --source build the packages' source derivations"))
|
||
(display (G_ "
|
||
-s, --system=SYSTEM attempt to build for SYSTEM--e.g., \"i686-linux\""))
|
||
(display (G_ "
|
||
--target=TRIPLET cross-build for TRIPLET--e.g., \"armel-linux-gnu\""))
|
||
(display (G_ "
|
||
-v, --verbosity=LEVEL use the given verbosity LEVEL"))
|
||
|
||
(newline)
|
||
(show-build-options-help)
|
||
|
||
(newline)
|
||
(display (G_ "
|
||
-h, --help display this help and exit"))
|
||
(display (G_ "
|
||
-V, --version display version information and exit"))
|
||
(newline)
|
||
(show-bug-report-information))
|
||
|
||
(define %key-generation-parameters
|
||
;; Default key generation parameters. We prefer Ed25519, but it was
|
||
;; introduced in libgcrypt 1.6.0.
|
||
(if (version>? (gcrypt-version) "1.6.0")
|
||
"(genkey (ecdsa (curve Ed25519) (flags rfc6979)))"
|
||
"(genkey (rsa (nbits 4:4096)))"))
|
||
|
||
(define %options
|
||
;; Specifications of the command-line options.
|
||
(cons* (option '(#\h "help") #f #f
|
||
(lambda args
|
||
(show-help)
|
||
(exit 0)))
|
||
(option '(#\V "version") #f #f
|
||
(lambda args
|
||
(show-version-and-exit "guix build")))
|
||
|
||
(option '("export") #f #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'export #t result)))
|
||
(option '(#\r "recursive") #f #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'export-recursive? #t result)))
|
||
(option '("import") #f #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'import #t result)))
|
||
(option '("missing") #f #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'missing #t result)))
|
||
(option '("extract" #\x) #t #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'extract arg result)))
|
||
(option '("generate-key") #f #t
|
||
(lambda (opt name arg result)
|
||
(catch 'gcry-error
|
||
(lambda ()
|
||
;; XXX: Curve25519 was actually introduced in
|
||
;; libgcrypt 1.6.0.
|
||
(let ((params
|
||
(string->canonical-sexp
|
||
(or arg %key-generation-parameters))))
|
||
(alist-cons 'generate-key params result)))
|
||
(lambda (key proc err)
|
||
(leave (G_ "invalid key generation parameters: ~a: ~a~%")
|
||
(error-source err)
|
||
(error-string err))))))
|
||
(option '("authorize") #f #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'authorize #t result)))
|
||
|
||
(option '(#\S "source") #f #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'source? #t result)))
|
||
(option '(#\s "system") #t #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'system arg
|
||
(alist-delete 'system result eq?))))
|
||
(option '("target") #t #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'target arg
|
||
(alist-delete 'target result eq?))))
|
||
(option '(#\e "expression") #t #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'expression arg result)))
|
||
(option '(#\v "verbosity") #t #f
|
||
(lambda (opt name arg result)
|
||
(let ((level (string->number* arg)))
|
||
(alist-cons 'verbosity level
|
||
(alist-delete 'verbosity result)))))
|
||
(option '(#\n "dry-run") #f #f
|
||
(lambda (opt name arg result)
|
||
(alist-cons 'dry-run? #t (alist-cons 'graft? #f result))))
|
||
|
||
%standard-build-options))
|
||
|
||
(define (derivation-from-expression store str package-derivation
|
||
system source?)
|
||
"Read/eval STR and return the corresponding derivation path for SYSTEM.
|
||
When SOURCE? is true and STR evaluates to a package, return the derivation of
|
||
the package source; otherwise, use PACKAGE-DERIVATION to compute the
|
||
derivation of a package."
|
||
(match (read/eval str)
|
||
((? package? p)
|
||
(if source?
|
||
(let ((source (package-source p)))
|
||
(if source
|
||
(package-source-derivation store source)
|
||
(leave (G_ "package `~a' has no source~%")
|
||
(package-name p))))
|
||
(package-derivation store p system)))
|
||
((? procedure? proc)
|
||
(run-with-store store
|
||
(mbegin %store-monad
|
||
(set-guile-for-build (default-guile))
|
||
(proc)) #:system system))))
|
||
|
||
(define (options->derivations+files store opts)
|
||
"Given OPTS, the result of 'args-fold', return a list of derivations to
|
||
build and a list of store files to transfer."
|
||
(define package->derivation
|
||
(match (assoc-ref opts 'target)
|
||
(#f package-derivation)
|
||
(triplet
|
||
(cut package-cross-derivation <> <> triplet <>))))
|
||
|
||
(define src? (assoc-ref opts 'source?))
|
||
(define sys (assoc-ref opts 'system))
|
||
|
||
(fold2 (lambda (arg derivations files)
|
||
(match arg
|
||
(('expression . str)
|
||
(let ((drv (derivation-from-expression store str
|
||
package->derivation
|
||
sys src?)))
|
||
(values (cons drv derivations)
|
||
(cons (derivation->output-path drv) files))))
|
||
(('argument . (? store-path? file))
|
||
(values derivations (cons file files)))
|
||
(('argument . (? string? spec))
|
||
(let-values (((p output)
|
||
(specification->package+output spec)))
|
||
(if src?
|
||
(let* ((s (package-source p))
|
||
(drv (package-source-derivation store s)))
|
||
(values (cons drv derivations)
|
||
(cons (derivation->output-path drv)
|
||
files)))
|
||
(let ((drv (package->derivation store p sys)))
|
||
(values (cons drv derivations)
|
||
(cons (derivation->output-path drv output)
|
||
files))))))
|
||
(_
|
||
(values derivations files))))
|
||
'()
|
||
'()
|
||
opts))
|
||
|
||
|
||
;;;
|
||
;;; Entry point.
|
||
;;;
|
||
|
||
(define (export-from-store store opts)
|
||
"Export the packages or derivations specified in OPTS from STORE. Write the
|
||
resulting archive to the standard output port."
|
||
(let-values (((drv files)
|
||
(options->derivations+files store opts)))
|
||
(show-what-to-build store drv
|
||
#:use-substitutes? (assoc-ref opts 'substitutes?)
|
||
#:dry-run? (assoc-ref opts 'dry-run?))
|
||
|
||
(if (or (assoc-ref opts 'dry-run?)
|
||
(build-derivations store drv))
|
||
(export-paths store files (current-output-port)
|
||
#:recursive? (assoc-ref opts 'export-recursive?))
|
||
(leave (G_ "unable to export the given packages~%")))))
|
||
|
||
(define (generate-key-pair parameters)
|
||
"Generate a key pair with PARAMETERS, a canonical sexp, and store it in the
|
||
right place."
|
||
(when (or (file-exists? %public-key-file)
|
||
(file-exists? %private-key-file))
|
||
(leave (G_ "key pair exists under '~a'; remove it first~%")
|
||
(dirname %public-key-file)))
|
||
|
||
(format (current-error-port)
|
||
(G_ "Please wait while gathering entropy to generate the key pair;
|
||
this may take time...~%"))
|
||
|
||
(let* ((pair (catch 'gcry-error
|
||
(lambda ()
|
||
(generate-key parameters))
|
||
(lambda (key proc err)
|
||
(leave (G_ "key generation failed: ~a: ~a~%")
|
||
(error-source err)
|
||
(error-string err)))))
|
||
(public (find-sexp-token pair 'public-key))
|
||
(secret (find-sexp-token pair 'private-key)))
|
||
;; Create the following files as #o400.
|
||
(umask #o266)
|
||
|
||
(mkdir-p (dirname %public-key-file))
|
||
(with-atomic-file-output %public-key-file
|
||
(lambda (port)
|
||
(display (canonical-sexp->string public) port)))
|
||
(with-atomic-file-output %private-key-file
|
||
(lambda (port)
|
||
(display (canonical-sexp->string secret) port)))
|
||
|
||
;; Make the public key readable by everyone.
|
||
(chmod %public-key-file #o444)))
|
||
|
||
(define (authorize-key)
|
||
"Authorize imports signed by the public key passed as an advanced sexp on
|
||
the input port."
|
||
(define (read-key)
|
||
(catch 'gcry-error
|
||
(lambda ()
|
||
(string->canonical-sexp (read-string (current-input-port))))
|
||
(lambda (key proc err)
|
||
(leave (G_ "failed to read public key: ~a: ~a~%")
|
||
(error-source err) (error-string err)))))
|
||
|
||
(let ((key (read-key))
|
||
(acl (current-acl)))
|
||
(unless (eq? 'public-key (canonical-sexp-nth-data key 0))
|
||
(leave (G_ "s-expression does not denote a public key~%")))
|
||
|
||
;; Add KEY to the ACL and write that.
|
||
(let ((acl (public-keys->acl (cons key (acl->public-keys acl)))))
|
||
(mkdir-p (dirname %acl-file))
|
||
(with-atomic-file-output %acl-file
|
||
(cut write-acl acl <>)))))
|
||
|
||
(define (guix-archive . args)
|
||
(define (lines port)
|
||
;; Return lines read from PORT.
|
||
(let loop ((line (read-line port))
|
||
(result '()))
|
||
(if (eof-object? line)
|
||
(reverse result)
|
||
(loop (read-line port)
|
||
(cons line result)))))
|
||
|
||
(with-error-handling
|
||
;; Ask for absolute file names so that .drv file names passed from the
|
||
;; user to 'read-derivation' are absolute when it returns.
|
||
(with-fluids ((%file-port-name-canonicalization 'absolute))
|
||
(let ((opts (parse-command-line args %options (list %default-options))))
|
||
(parameterize ((%graft? (assoc-ref opts 'graft?)))
|
||
(cond ((assoc-ref opts 'generate-key)
|
||
=>
|
||
generate-key-pair)
|
||
((assoc-ref opts 'authorize)
|
||
(authorize-key))
|
||
(else
|
||
(with-status-verbosity (assoc-ref opts 'verbosity)
|
||
(with-store store
|
||
(set-build-options-from-command-line store opts)
|
||
(cond ((assoc-ref opts 'export)
|
||
(export-from-store store opts))
|
||
((assoc-ref opts 'import)
|
||
(import-paths store (current-input-port)))
|
||
((assoc-ref opts 'missing)
|
||
(let* ((files (lines (current-input-port)))
|
||
(missing (remove (cut valid-path? store <>)
|
||
files)))
|
||
(format #t "~{~a~%~}" missing)))
|
||
((assoc-ref opts 'extract)
|
||
=>
|
||
(lambda (target)
|
||
(restore-file (current-input-port) target)))
|
||
(else
|
||
(leave
|
||
(G_ "either '--export' or '--import' \
|
||
must be specified~%")))))))))))))
|