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import: stackage: Use 'define-json-mapping'.

* guix/import/stackage.scm (<stackage-lts>, <snapshot>)
(<stackage-package>): New record types and JSON mappings.
(lts-info-packages, stackage-package-name)
(stackage-package-version): Remove.
(lts-package-version): Rename 'pkgs-info' to 'packages'; assume
'packages' is a list of <stackage-package>.
(stackage->guix-package): Use 'stackage-lts-packages' instead of
'lts-info-packages'.  Rename 'packages-info' to 'packages'.
(latest-lts-release): Likewise.
(stackage-package?): Rename to...
(stackage-lts-package?): ... this.  Adjust to new API.
(%stackage-updater)[pred]: Update accordingly.
* tests/lint.scm ("haskell-stackage"): Add "snapshot" entry in JSON
snippet.
master
Ludovic Courtès 2021-09-30 22:38:57 +02:00
parent 21aeb62437
commit 46d15af4cb
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GPG Key ID: 090B11993D9AEBB5
2 changed files with 49 additions and 36 deletions

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@ -3,6 +3,7 @@
;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2020 Martin Becze <mjbecze@riseup.net>
;;; Copyright © 2021 Xinglu Chem <public@yoctocell.xyz>
;;; Copyright © 2021 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -21,13 +22,10 @@
(define-module (guix import stackage)
#:use-module (ice-9 match)
#:use-module (ice-9 regex)
#:use-module (ice-9 control)
#:use-module (json)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:use-module (srfi srfi-34)
#:use-module (srfi srfi-35)
#:use-module (srfi srfi-43)
#:use-module (guix import json)
#:use-module (guix import hackage)
#:use-module (guix import utils)
@ -50,9 +48,28 @@
;; Latest LTS version compatible with GHC 8.6.5.
(define %default-lts-version "14.27")
(define (lts-info-packages lts-info)
"Returns the alist of packages contained in LTS-INFO."
(or (assoc-ref lts-info "packages") '()))
(define-json-mapping <stackage-lts> make-stackage-lts
stackage-lts?
json->stackage-lts
(snapshot stackage-lts-snapshot "snapshot" json->snapshot)
(packages stackage-lts-packages "packages"
(lambda (vector)
(map json->stackage-package (vector->list vector)))))
(define-json-mapping <snapshot> make-snapshot
stackage-snapshot?
json->snapshot
(name snapshot-name)
(ghc-version snapshot-ghc-version)
(compiler snapshot-compiler))
(define-json-mapping <stackage-package> make-stackage-package
stackage-package?
json->stackage-package
(origin stackage-package-origin)
(name stackage-package-name)
(version stackage-package-version)
(synopsis stackage-package-synopsis))
(define (leave-with-message fmt . args)
(raise (condition (&message (message (apply format #f fmt args))))))
@ -65,21 +82,14 @@
"/lts-" (if (string-null? version)
%default-lts-version
version)))
(lts-info (json-fetch url)))
(if lts-info
(reverse lts-info)
(lts-info (and=> (json-fetch url) json->stackage-lts)))
(or lts-info
(leave-with-message "LTS release version not found: ~a" version))))))
(define (stackage-package-name pkg-info)
(assoc-ref pkg-info "name"))
(define (stackage-package-version pkg-info)
(assoc-ref pkg-info "version"))
(define (lts-package-version pkgs-info name)
"Return the version of the package with upstream NAME included in PKGS-INFO."
(define (lts-package-version packages name)
"Return the version of the package with upstream NAME included in PACKAGES."
(let ((pkg (find (lambda (pkg) (string=? (stackage-package-name pkg) name))
(vector->list pkgs-info))))
packages)))
(stackage-package-version pkg)))
@ -96,15 +106,15 @@
#:key
(include-test-dependencies? #t)
(lts-version %default-lts-version)
(packages-info
(lts-info-packages
(packages
(stackage-lts-packages
(stackage-lts-info-fetch lts-version))))
"Fetch Cabal file for PACKAGE-NAME from hackage.haskell.org. The retrieved
version corresponds to the version of PACKAGE-NAME specified in the LTS-VERSION
release at stackage.org. Return the `package' S-expression corresponding to
that package, or #f on failure. PACKAGES-INFO is the alist with the packages
included in the Stackage LTS release."
(let* ((version (lts-package-version packages-info package-name))
(let* ((version (lts-package-version packages package-name))
(name-version (hackage-name-version package-name version)))
(if name-version
(hackage->guix-package name-version
@ -124,14 +134,15 @@ included in the Stackage LTS release."
;;;
(define latest-lts-release
(let ((pkgs-info
(mlambda () (lts-info-packages
(stackage-lts-info-fetch %default-lts-version)))))
(let ((packages
(mlambda ()
(stackage-lts-packages
(stackage-lts-info-fetch %default-lts-version)))))
(lambda* (package)
"Return an <upstream-source> for the latest Stackage LTS release of
PACKAGE or #f if the package is not included in the Stackage LTS release."
(let* ((hackage-name (guix-package->hackage-name package))
(version (lts-package-version (pkgs-info) hackage-name))
(version (lts-package-version (packages) hackage-name))
(name-version (hackage-name-version hackage-name version)))
(match (and=> name-version hackage-fetch)
(#f (format (current-error-port)
@ -144,23 +155,21 @@ PACKAGE or #f if the package is not included in the Stackage LTS release."
(version version)
(urls (list url))))))))))
(define (stackage-package? package)
"Whether PACKAGE is available on the default Stackage LTS release."
(define (stackage-lts-package? package)
"Return whether PACKAGE is available on the default Stackage LTS release."
(and (hackage-package? package)
(let ((packages (lts-info-packages
(let ((packages (stackage-lts-packages
(stackage-lts-info-fetch %default-lts-version)))
(hackage-name (guix-package->hackage-name package)))
(vector-any identity
(vector-map
(lambda (_ metadata)
(string=? (cdr (list-ref metadata 2)) hackage-name))
packages)))))
(find (lambda (package)
(string=? (stackage-package-name package) hackage-name))
packages))))
(define %stackage-updater
(upstream-updater
(name 'stackage)
(description "Updater for Stackage LTS packages")
(pred stackage-package?)
(pred stackage-lts-package?)
(latest latest-lts-release)))
;;; stackage.scm ends here

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@ -1319,7 +1319,11 @@
(let* ((stackage (string-append "{ \"packages\": [{"
" \"name\":\"pandoc\","
" \"synopsis\":\"synopsis\","
" \"version\":\"1.0\" }]}"))
" \"version\":\"1.0\" }],"
" \"snapshot\": {"
" \"ghc\": \"8.6.5\","
" \"name\": \"lts-14.27\""
" }}"))
(packages (map (lambda (version)
(dummy-package
"ghc-pandoc"