diff options
| author | Arun Isaac <arunisaac@systemreboot.net> | 2020-03-27 21:56:53 +0530 |
|---|---|---|
| committer | Guix Patches Tester <> | 2020-03-27 16:29:06 +0000 |
| commit | bf4676539f333b2996bd11d82942471ec95a5f97 (patch) | |
| tree | 135fc7d4ec50bd0607317075237478d250694c6c | |
| parent | ff3423f30231c99c9a4bdd45bf6b727873ea1aa7 (diff) | |
| download | patches-bf4676539f333b2996bd11d82942471ec95a5f97.tar patches-bf4676539f333b2996bd11d82942471ec95a5f97.tar.gz | |
guix: Search package metadata cache.
* gnu/packages.scm (search-packages): New function.
* guix/packages.scm (<package-metadata>): New record type.
| -rw-r--r-- | gnu/packages.scm | 38 | ||||
| -rw-r--r-- | guix/packages.scm | 32 |
2 files changed, 70 insertions, 0 deletions
diff --git a/gnu/packages.scm b/gnu/packages.scm index c0b527acf0..2510b1fe49 100644 --- a/gnu/packages.scm +++ b/gnu/packages.scm @@ -59,6 +59,7 @@ find-packages-by-name find-package-locations find-best-packages-by-name + search-packages specification->package specification->package+output @@ -474,6 +475,43 @@ package modules." #:opts '(#:to-file? #t))))) cache-file) +(define (search-packages profile regexps) + "Return a list of pairs: <package-metadata> objects corresponding to +packages whose name, synopsis, description, or output matches at least one of +REGEXPS sorted by relevance, and its non-zero relevance score." + (define cache-file + (string-append profile %package-metadata-cache-file)) + + (define cache + (catch 'system-error + (lambda () + (map (match-lambda + (#(name version dependencies outputs systems + synopsis description home-page (file line column)) + (make-package-metadata + name version dependencies outputs systems + synopsis description home-page + (location file line column)))) + (load-compiled cache-file))) + (lambda args + (if (= ENOENT (system-error-errno args)) + #f + (apply throw args))))) + + (let ((matches + (filter-map (lambda (package-metadata) + (let ((score (package-relevance package-metadata regexps))) + (and (positive? score) + (cons package-metadata score)))) + cache))) + (sort matches + (lambda (m1 m2) + (match m1 + ((package1 . score1) + (match m2 + ((package2 . score2) + (> score1 score2))))))))) + (define %sigint-prompt ;; The prompt to jump to upon SIGINT. diff --git a/guix/packages.scm b/guix/packages.scm index 70b1478c91..bb06baa1ee 100644 --- a/guix/packages.scm +++ b/guix/packages.scm @@ -5,6 +5,7 @@ ;;; Copyright © 2016 Alex Kost <alezost@gmail.com> ;;; Copyright © 2017, 2019 Efraim Flashner <efraim@flashner.co.il> ;;; Copyright © 2019 Marius Bakke <mbakke@fastmail.com> +;;; Copyright © 2020 Arun Isaac <arunisaac@systemreboot.net> ;;; ;;; This file is part of GNU Guix. ;;; @@ -115,6 +116,21 @@ transitive-input-references + package-metadata + make-package-metadata + package-metadata? + this-package-metadata + package-metadata-name + package-metadata-version + package-metadata-dependencies + package-metadata-outputs + package-metadata-synopsis + package-metadata-description + package-metadata-license + package-metadata-home-page + package-metadata-supported-systems + package-metadata-location + %supported-systems %hurd-systems %hydra-supported-systems @@ -310,6 +326,22 @@ name of its URI." package) 16))))) +(define-record-type* <package-metadata> + package-metadata make-package-metadata + package-metadata? + this-package-metadata + (name package-metadata-name) + (version package-metadata-version) + (dependencies package-metadata-dependencies) + (outputs package-metadata-outputs) + (supported-systems package-metadata-supported-systems) + (synopsis package-metadata-synopsis) + (description package-metadata-description) + ;; TODO: Add license + ;; (license package-metadata-license) + (home-page package-metadata-home-page) + (location package-metadata-location)) + (define (package-upstream-name package) "Return the upstream name of PACKAGE, which could be different from the name it has in Guix." |