diff options
Diffstat (limited to 'gnu/packages.scm')
| -rw-r--r-- | gnu/packages.scm | 38 |
1 files changed, 38 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. |