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import: opam: Add updater.

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* guix/import/opam.scm (%opam-updater): New variable.
This commit is contained in:
Julien Lepiller 2018-12-19 23:20:39 +01:00
parent 6090b0beb0
commit 755e6d4a0a
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1 changed files with 54 additions and 5 deletions
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59
guix/import/opam.scm
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@ -27,14 +27,19 @@
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-2)
#:use-module (web uri)
#:use-module (guix build-system)
#:use-module (guix build-system ocaml)
#:use-module (guix http-client)
#:use-module (guix git)
#:use-module (guix ui)
#:use-module (guix packages)
#:use-module (guix upstream)
#:use-module (guix utils)
#:use-module (guix import utils)
#:use-module ((guix licenses) #:prefix license:)
#:export (opam->guix-package
opam-recursive-import))
opam-recursive-import
%opam-updater))
;; Define a PEG parser for the opam format
(define-peg-pattern SP none (or " " "\n"))
@ -205,11 +210,17 @@ path to the repository."
(list dependency (list 'unquote (string->symbol dependency))))
(ocaml-names->guix-names lst)))
(define (opam->guix-package name)
(define (opam-fetch name)
(and-let* ((repository (get-opam-repository))
(version (find-latest-version name repository))
(file (string-append repository "/packages/" name "/" name "." version "/opam"))
(opam-content (get-metadata file))
(file (string-append repository "/packages/" name "/" name "." version "/opam")))
`(("metadata" ,@(get-metadata file))
("version" . ,version))))
(define (opam->guix-package name)
(and-let* ((opam-file (opam-fetch name))
(version (assoc-ref opam-file "version"))
(opam-content (assoc-ref opam-file "metadata"))
(url-dict (metadata-ref opam-content "url"))
(source-url (metadata-ref url-dict "src"))
(requirements (metadata-ref opam-content "depends"))
@ -222,7 +233,7 @@ path to the repository."
(values
`(package
(name ,(ocaml-name->guix-name name))
(version ,(metadata-ref opam-content "version"))
(version ,version)
(source
(origin
(method url-fetch)
@ -246,3 +257,41 @@ path to the repository."
#:repo->guix-package (lambda (name repo)
(opam->guix-package name))
#:guix-name ocaml-name->guix-name))
(define (guix-package->opam-name package)
"Given an OCaml PACKAGE built from OPAM, return the name of the
package in OPAM."
(let ((upstream-name (assoc-ref
(package-properties package)
'upstream-name))
(name (package-name package)))
(cond
(upstream-name upstream-name)
((string-prefix? "ocaml-" name) (substring name 6))
(else name))))
(define (opam-package? package)
"Return true if PACKAGE is an OCaml package from OPAM"
(and
(equal? (build-system-name (package-build-system package)) 'ocaml)
(not (string-prefix? "ocaml4" (package-name package)))))
(define (latest-release package)
"Return an <upstream-source> for the latest release of PACKAGE."
(and-let* ((opam-name (guix-package->opam-name package))
(opam-file (opam-fetch opam-name))
(version (assoc-ref opam-file "version"))
(opam-content (assoc-ref opam-file "metadata"))
(url-dict (metadata-ref opam-content "url"))
(source-url (metadata-ref url-dict "src")))
(upstream-source
(package (package-name package))
(version version)
(urls (list source-url)))))
(define %opam-updater
(upstream-updater
(name 'opam)
(description "Updater for OPAM packages")
(pred opam-package?)
(latest latest-release)))