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guix/guix/build/lisp-utils.scm

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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2016, 2017 Andy Patterson <ajpatter@uwaterloo.ca>
;;;
;;; 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 build lisp-utils)
#:use-module (ice-9 format)
#:use-module (ice-9 hash-table)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (guix build utils)
#:export (%lisp
%lisp-type
%source-install-prefix
lisp-eval-program
compile-system
test-system
replace-escaped-macros
generate-executable-wrapper-system
generate-executable-entry-point
generate-executable-for-system
%bundle-install-prefix
bundle-asd-file
wrap-output-translations
prepend-to-source-registry
build-program
build-image
make-asd-file
valid-char-set
normalize-string
library-output))
;;; Commentary:
;;;
;;; Tools to evaluate lisp programs within a lisp session, generate wrapper
;;; systems for executables. Compile, test, and produce images for systems and
;;; programs, and link them with their dependencies.
;;;
;;; Code:
(define %lisp
;; File name of the Lisp compiler.
(make-parameter "lisp"))
(define %lisp-type
;; String representing the class of implementation being used.
(make-parameter "lisp"))
;; The common parent for Lisp source files, as will as the symbolic
;; link farm for system definition (.asd) files.
(define %source-install-prefix "/share/common-lisp")
(define (%bundle-install-prefix)
(string-append %source-install-prefix "/" (%lisp-type) "-bundle-systems"))
(define (library-output outputs)
"If a `lib' output exists, build things there. Otherwise use `out'."
(or (assoc-ref outputs "lib") (assoc-ref outputs "out")))
;; See nix/libstore/store-api.cc#checkStoreName.
(define valid-char-set
(string->char-set
"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+-._?="))
(define (normalize-string str)
"Replace invalid characters in STR with a hyphen."
(string-join (string-tokenize str valid-char-set) "-"))
(define (normalize-dependency dependency)
"Normalize the name of DEPENDENCY. Handles dependency definitions of the
dependency-def form described by
<https://common-lisp.net/project/asdf/asdf.html#The-defsystem-grammar>.
Assume that any symbols in DEPENDENCY will be in upper-case."
(match dependency
((':VERSION name rest ...)
`(:version ,(normalize-string name) ,@rest))
((':FEATURE feature-specification dependency-specification)
`(:feature
,feature-specification
,(normalize-dependency dependency-specification)))
((? string? name) (normalize-string name))
(require-specification require-specification)))
(define (inputs->asd-file-map inputs)
"Produce a hash table of the form (system . asd-file), where system is the
name of an ASD system, and asd-file is the full path to its definition."
(alist->hash-table
(filter-map
(match-lambda
((_ . path)
(let ((prefix (string-append path (%bundle-install-prefix))))
(and (directory-exists? prefix)
(match (find-files prefix "\\.asd$")
((asd-file)
(cons
(string-drop-right (basename asd-file) 4) ; drop ".asd"
asd-file))
(_ #f))))))
inputs)))
(define (wrap-output-translations translations)
`(:output-translations
,@translations
:inherit-configuration))
(define (lisp-eval-program program)
"Evaluate PROGRAM with a given LISP implementation."
(define invocation (lisp-invocation program))
(format #t "Invoking ~a: ~{~s ~}~%" (%lisp-type) invocation)
(apply invoke invocation))
(define (spread-statements program argument-name)
"Return a list with the statements from PROGRAM spread between
ARGUMENT-NAME, a string representing the argument a lisp implementation uses
to accept statements to be evaluated before starting."
(append-map (lambda (statement)
(list argument-name (format #f "~S" statement)))
program))
(define (lisp-invocation program)
"Return a list of arguments for system* determining how to invoke LISP
with PROGRAM."
(match (%lisp-type)
("sbcl" `(,(%lisp) "--non-interactive"
,@(spread-statements program "--eval")))
("ecl" `(,(%lisp)
,@(spread-statements program "--eval")
"--eval" "(quit)"))
(_ (error "The LISP provided is not supported at this time."))))
(define (asdf-load-all systems)
(map (lambda (system)
`(asdf:load-system ,system))
systems))
(define (compile-system system asd-file)
"Use a lisp implementation to compile SYSTEM using asdf. Load ASD-FILE
first."
(lisp-eval-program
`((require :asdf)
(asdf:load-asd (truename ,asd-file) :name ,(normalize-string system))
(asdf:operate 'asdf:compile-bundle-op ,system))))
(define (system-dependencies system asd-file)
"Return the dependencies of SYSTEM, as reported by
asdf:system-depends-on. First load the system's ASD-FILE."
(define deps-file ".deps.sexp")
(define program
`((require :asdf)
(asdf:load-asd (truename ,asd-file) :name ,(normalize-string system))
(with-open-file
(stream ,deps-file :direction :output)
(format stream
"~s~%"
(asdf:system-depends-on
(asdf:find-system ,system))))))
(dynamic-wind
(lambda _
(lisp-eval-program program))
(lambda _
(call-with-input-file deps-file read))
(lambda _
(when (file-exists? deps-file)
(delete-file deps-file)))))
(define (compiled-system system)
(let ((system (basename system))) ; this is how asdf handles slashes
(match (%lisp-type)
("sbcl" (string-append system "--system"))
(_ system))))
(define* (generate-system-definition system
#:key version dependencies component?)
`(asdf:defsystem
,(normalize-string system)
,@(if component?
'(:class asdf/bundle:prebuilt-system)
'())
:version ,version
:depends-on ,dependencies
,@(if component?
`(:components ((:compiled-file ,(compiled-system system))))
'())
,@(if (string=? "ecl" (%lisp-type))
`(:lib ,(string-append system ".a"))
'())))
(define (test-system system asd-file test-asd-file)
"Use a lisp implementation to test SYSTEM using asdf. Load ASD-FILE first.
Also load TEST-ASD-FILE if necessary."
(lisp-eval-program
`((require :asdf)
(asdf:load-asd (truename ,asd-file) :name ,(normalize-string system))
,@(if test-asd-file
`((asdf:load-asd (truename ,test-asd-file)))
;; Try some likely files.
(map (lambda (file)
`(when (uiop:file-exists-p ,file)
(asdf:load-asd (truename ,file))))
(list
(string-append system "-tests.asd")
(string-append system "-test.asd")
"tests.asd"
"test.asd")))
(asdf:test-system ,system))))
(define (string->lisp-keyword . strings)
"Return a lisp keyword for the concatenation of STRINGS."
(string->symbol (apply string-append ":" strings)))
(define* (generate-executable-for-system type system #:key compress?)
"Use LISP to generate an executable, whose TYPE can be 'asdf:image-op or
'asdf:program-op. The latter will always be standalone. Depends on having
created a \"SYSTEM-exec\" system which contains the entry program."
(lisp-eval-program
`((require :asdf)
;; Only SBCL supports compression as of 2019-09-02.
,(if (and compress? (string=? (%lisp-type) "sbcl"))
'(defmethod asdf:perform ((o asdf:image-op) (c asdf:system))
(uiop:dump-image (asdf:output-file o c)
:executable t
:compression t))
'())
(asdf:operate ',type ,(string-append system "-exec")))))
(define (generate-executable-wrapper-system system dependencies)
"Generates a system which can be used by asdf to produce an image or program
inside the current directory. The image or program will contain
DEPENDENCIES."
(with-output-to-file (string-append system "-exec.asd")
(lambda _
(format #t "~y~%"
`(defsystem ,(string->lisp-keyword system "-exec")
:entry-point ,(string-append system "-exec:main")
:depends-on (:uiop
,@(map string->lisp-keyword
dependencies))
:components ((:file ,(string-append system "-exec"))))))))
(define (generate-executable-entry-point system entry-program)
"Generates an entry point program from the list of lisp statements
ENTRY-PROGRAM for SYSTEM within the current directory."
(with-output-to-file (string-append system "-exec.lisp")
(lambda _
(let ((system (string->lisp-keyword system "-exec")))
(format #t "~{~y~%~%~}"
`((defpackage ,system
(:use :cl)
(:export :main))
(in-package ,system)
(defun main ()
(let ((arguments uiop:*command-line-arguments*))
(declare (ignorable arguments))
,@entry-program))))))))
(define (generate-dependency-links registry system)
"Creates a program which populates asdf's source registry from REGISTRY, an
alist of dependency names to corresponding asd files. This allows the system
to locate its dependent systems."
`(progn
(asdf/source-registry:ensure-source-registry)
,@(map (match-lambda
((name . asd-file)
`(setf
(gethash ,name
asdf/source-registry:*source-registry*)
,(string->symbol "#p")
,asd-file)))
registry)))
(define* (make-asd-file asd-file
#:key system version inputs
(system-asd-file #f))
"Create an ASD-FILE for SYSTEM@VERSION, appending a program to allow the
system to find its dependencies, as described by GENERATE-DEPENDENCY-LINKS."
(define dependencies
(let ((deps
(system-dependencies system system-asd-file)))
(if (eq? 'NIL deps)
'()
(map normalize-dependency deps))))
(define lisp-input-map
(inputs->asd-file-map inputs))
(define dependency-name
(match-lambda
((':version name _ ...) name)
((':feature _ dependency-specification)
(dependency-name dependency-specification))
((? string? name) name)
(_ #f)))
(define registry
(filter-map hash-get-handle
(make-list (length dependencies)
lisp-input-map)
(map dependency-name dependencies)))
;; Ensure directory exists, which might not be the case for an .asd without components.
(mkdir-p (dirname asd-file))
(call-with-output-file asd-file
(lambda (port)
(display
(replace-escaped-macros
(format #f "~y~%~y~%"
(generate-system-definition
system
#:version version
#:dependencies dependencies
;; Some .asd don't have components, and thus they don't generate any .fasl.
#:component? (match (%lisp-type)
("sbcl" (pair? (find-files (dirname asd-file)
"--system\\.fasl$")))
("ecl" (pair? (find-files (dirname asd-file)
"\\.fasb$")))
(_ (error "The LISP provided is not supported at this time."))))
(generate-dependency-links registry system)))
port))))
(define (bundle-asd-file output-path original-asd-file)
"Find the symlinked bundle file for ORIGINAL-ASD-FILE by looking in
OUTPUT-PATH/share/common-lisp/LISP-bundle-systems/<system>.asd. Returns two
values: the asd file itself and the directory in which it resides."
(let ((bundle-asd-path (string-append output-path
(%bundle-install-prefix))))
(values (string-append bundle-asd-path "/" (basename original-asd-file))
bundle-asd-path)))
(define (replace-escaped-macros string)
"Replace simple lisp forms that the guile writer escapes, for example by
replacing #{#p}# with #p. Should only be used to replace truly simple forms
which are not nested."
(regexp-substitute/global #f "(#\\{)(\\S*)(\\}#)" string
'pre 2 'post))
(define (prepend-to-source-registry path)
(setenv "CL_SOURCE_REGISTRY"
(string-append path ":" (or (getenv "CL_SOURCE_REGISTRY") ""))))
(define* (build-program program outputs #:key
(dependency-prefixes (list (library-output outputs)))
(dependencies (list (basename program)))
entry-program
compress?
#:allow-other-keys)
"Generate an executable program containing all DEPENDENCIES, and which will
execute ENTRY-PROGRAM. The result is placed in PROGRAM. When executed, it
will run ENTRY-PROGRAM, a list of Common Lisp expressions in which `arguments'
has been bound to the command-line arguments which were passed. Link in any
asd files from DEPENDENCY-PREFIXES to ensure references to those libraries are
retained."
(generate-executable program
#:dependencies dependencies
#:dependency-prefixes dependency-prefixes
#:entry-program entry-program
#:compress? compress?
#:type 'asdf:program-op)
(let* ((name (basename program))
(bin-directory (dirname program)))
(with-directory-excursion bin-directory
(rename-file (string-append name "-exec")
name)))
#t)
(define* (build-image image outputs #:key
(dependency-prefixes (list (library-output outputs)))
(dependencies (list (basename image)))
#:allow-other-keys)
"Generate an image, possibly standalone, which contains all DEPENDENCIES,
placing the result in IMAGE.image. Link in any asd files from
DEPENDENCY-PREFIXES to ensure references to those libraries are retained."
(generate-executable image
#:dependencies dependencies
#:dependency-prefixes dependency-prefixes
#:entry-program '(nil)
#:type 'asdf:image-op)
(let* ((name (basename image))
(bin-directory (dirname image)))
(with-directory-excursion bin-directory
(rename-file (string-append name "-exec--all-systems.image")
(string-append name ".image"))))
#t)
(define* (generate-executable out-file #:key
dependencies
dependency-prefixes
entry-program
type
compress?
#:allow-other-keys)
"Generate an executable by using asdf operation TYPE, containing whithin the
image all DEPENDENCIES, and running ENTRY-PROGRAM in the case of an
executable. Link in any asd files from DEPENDENCY-PREFIXES to ensure
references to those libraries are retained."
(let* ((bin-directory (dirname out-file))
(name (basename out-file)))
(mkdir-p bin-directory)
(with-directory-excursion bin-directory
(generate-executable-wrapper-system name dependencies)
(generate-executable-entry-point name entry-program))
(prepend-to-source-registry
(string-append bin-directory "/"))
(setenv "ASDF_OUTPUT_TRANSLATIONS"
(replace-escaped-macros
(format
#f "~S"
(wrap-output-translations
`(((,bin-directory :**/ :*.*.*)
(,bin-directory :**/ :*.*.*)))))))
(generate-executable-for-system type name #:compress? compress?)
(let* ((after-store-prefix-index
(string-index out-file #\/
(1+ (string-length (%store-directory)))))
(output (string-take out-file after-store-prefix-index))
(hidden-asd-links (string-append output "/.asd-files")))
(mkdir-p hidden-asd-links)
(for-each
(lambda (path)
(for-each
(lambda (asd-file)
(symlink asd-file
(string-append hidden-asd-links
"/" (basename asd-file))))
(find-files (string-append path (%bundle-install-prefix))
"\\.asd$")))
dependency-prefixes))
(delete-file (string-append bin-directory "/" name "-exec.asd"))
(delete-file (string-append bin-directory "/" name "-exec.lisp"))))