@@ -26,6 +26,7 @@ (define-module (guix import juliahub)
#:use-module (srfi srfi-9)
#:use-module (srfi srfi-11)
#:use-module (guix http-client)
+ #:use-module (guix git)
#:use-module (guix import utils)
#:use-module (guix import json)
#:use-module (guix base32)
@@ -38,6 +39,48 @@ (define-module (guix import juliahub)
%juliahub-updater
juliahub-recursive-import))
+;; Juliahub may be more up-to-date than the General registry or the actual git
+;; tag (it seems around 6 hours pass between the time a commit is supplied to
+;; JuliaRegistrator as a release, and the time Julia TagBot Github Action makes
+;; the git tag). We have no simple way to get the commit of the latest-version.
+;; Thus the best simple thing we can do is get the latest-git-version, and
+;; import this version instead. We do this by parsing Package.toml in the General
+;; registry, and then getting the refs of the git repo supplied by this
+;; file. Parsing this file is also necessary if the package is in a subdir of a
+;; git repository, because the information isn't present in Juliahub.
+;; There's a last case where some Julia packages are not based on a particular
+;; git tag, and where looking for the commit is tedious and artificial. In these
+;; cases, we introduce the tree-commit which is available in the Versions.toml
+;; file in the General repository. This is equivalent to a commit, since we have
+;; a unique hash of the listing of files and directories, thus it can be used to
+;; identify the state of a repository.
+
+(define %general-base-url
+ "https://raw.githubusercontent.com/JuliaRegistries/General/master/")
+
+(define (general-url package-name file)
+ (let ((folder (string-capitalize (string-take package-name 1))))
+ (string-append
+ %general-base-url folder "/" package-name "/" file)))
+
+(define (ini-list->alist lst)
+ (match lst
+ ((attribute '= value ooo ...)
+ `((,attribute . ,value) ,@(ini-list->alist ooo)))
+ ('()
+ '())))
+
+(define (ini-fetch url)
+ (let* ((port (http-fetch url #:text? #t))
+ (ini-list (stream->list (port->stream port read))))
+ (close-port port)
+ (ini-list->alist ini-list)))
+
+(define (latest-git-tag repo)
+ (let* ((last-ref (last (remote-refs repo #:tags? #t)))
+ (last-git-tag (last (string-split last-ref #\/))))
+ (string-drop last-git-tag 1)))
+
;; To update, see file sysimg.jl
(define %julia-stdlibs
(list "julia"
@@ -194,14 +237,21 @@ (define (make-julia-sexp name source home-page synopsis description
((license) (license->symbol license))
(_ `(list ,@(map license->symbol licenses)))))))
+;; TODO handle subdir case properly.
+
(define* (juliahub->guix-package package-name
#:key version #:allow-other-keys)
"Fetch the metadata for PACKAGE-NAME from juliahub.org, and return the
`package' s-expression corresponding to that package, or #f on failure.
Optionally include a VERSION string to fetch a specific version juliahub."
- (let ((package (if version
- (juliahub-fetch package-name version)
- (juliahub-fetch package-name))))
+ (let* ((package-toml (ini-fetch (general-url name "Package.toml")))
+ (subdir (assoc-ref package-toml 'subdir))
+ (tag (latest-git-tag (assoc-ref package-toml 'repo)))
+ (package (if version
+ (juliahub-fetch package-name version)
+ (if tag
+ (juliahub-fetch package-name tag)
+ (juliahub-fetch package-name)))))
(if package
(let-values (((source directory)
(git->origin+dir
@@ -233,13 +283,13 @@ (define* (juliahub->guix-package package-name
(define (guix-package->juliahub-name package)
(let* ((url (juliahub-package-url package))
- (git-name (car (last-pair (string-split url #\/))))
+ (git-name (last (string-split url #\/)))
(ungitted-name (if (string-suffix? ".git" git-name)
(string-drop-right git-name 4)
git-name))
(package-name (if (string-suffix? ".jl" ungitted-name)
- (string-drop-right ungitted-name 4)
- ungitted-name)))
+ (string-drop-right ungitted-name 4)
+ ungitted-name)))
package-name))
(define* (import-release package #:key (version #f))