diff options
Diffstat (limited to 'guix/import/crate.scm')
| -rw-r--r-- | guix/import/crate.scm | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/guix/import/crate.scm b/guix/import/crate.scm index e78e3ad9ca..3a19fc70cf 100644 --- a/guix/import/crate.scm +++ b/guix/import/crate.scm @@ -36,7 +36,8 @@ #:use-module (srfi srfi-2) #:use-module (srfi srfi-26) #:export (crate->guix-package - guix-package->crate-name)) + guix-package->crate-name + %crate-updater)) (define (crate-fetch crate-name callback) "Fetch the metadata for CRATE-NAME from crates.io and call the callback." @@ -123,3 +124,36 @@ VERSION, INPUTS, NATIVE-INPUTS, HOME-PAGE, SYNOPSIS, DESCRIPTION, and LICENSE." (define (crate-name->package-name name) (string-append "rust-" (string-join (string-split name #\_) "-"))) +;;; +;;; Updater +;;; + +(define (crate-package? package) + "Return true if PACKAGE is a Rust crate from crates.io." + (let ((source-url (and=> (package-source package) origin-uri)) + (fetch-method (and=> (package-source package) origin-method))) + (and (eq? fetch-method download:url-fetch) + (match source-url + ((? string?) + (crate-url? source-url)) + ((source-url ...) + (any crate-url? source-url)))))) + +(define (latest-release package) + "Return an <upstream-source> for the latest release of PACKAGE." + (let* ((crate-name (guix-package->crate-name package)) + (callback (lambda* (#:key version #:allow-other-keys) version)) + (version (crate-fetch crate-name callback)) + (url (crate-uri crate-name version))) + (upstream-source + (package (package-name package)) + (version version) + (urls (list url))))) + +(define %crate-updater + (upstream-updater + (name 'crates) + (description "Updater for crates.io packages") + (pred crate-package?) + (latest latest-release))) + |