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| author | Oleg Pykhalov <go.wigust@gmail.com> | 2018-09-04 02:51:26 +0300 |
|---|---|---|
| committer | Oleg Pykhalov <go.wigust@gmail.com> | 2018-09-26 20:04:53 +0300 |
| commit | 7c6cb0fbde7c1156fbee91979f5b248f0957a826 (patch) | |
| tree | ebae29e0b0a7920fb46f0a2ecd91a03f0fb88dc4 /feed/scripts | |
| download | guile-feed-7c6cb0fbde7c1156fbee91979f5b248f0957a826.tar.gz | |
Initial commit.
Diffstat (limited to 'feed/scripts')
| -rw-r--r-- | feed/scripts/rss.scm | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/feed/scripts/rss.scm b/feed/scripts/rss.scm new file mode 100644 index 0000000..a9005d5 --- /dev/null +++ b/feed/scripts/rss.scm @@ -0,0 +1,107 @@ +;;; Guile Feed --- Feed command-line interface. +;;; Copyright © 2018 Oleg Pykhalov <go.wigust@gmail.com> +;;; +;;; This file is part of Guile Feed. +;;; +;;; Guile Feed is free software; you can redistribute it and/or modify +;;; it under the terms of the GNU General Public License as published +;;; by the Free Software Foundation; either version 3 of the License, +;;; or (at your option) any later version. +;;; +;;; Guile Feed is distributed in the hope that it will be useful, but +;;; WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;;; General Public License for more details. +;;; +;;; You should have received a copy of the GNU General Public License +;;; along with Guile Feed. If not, see +;;; <http://www.gnu.org/licenses/>. + +(define-module (feed scripts rss) + #:use-module (guix scripts) + #:use-module (guix ui) + #:use-module (ice-9 match) + #:use-module (ice-9 pretty-print) + #:use-module (feed rss) + #:use-module (srfi srfi-1) + #:use-module (srfi srfi-11) + #:use-module (srfi srfi-26) + #:use-module (srfi srfi-37) + #:export (feed-rss)) + + +;;; +;;; Command-line options. +;;; + +(define %default-options + ;; Alist of default option values. + '()) + +(define %options + (list (option '(#\h "help") #f #f + (lambda args + (show-help) + (exit 0))) + (option '(#\o "output-file") #t #f + (lambda (opt name arg result) + (alist-cons 'output-file arg result))) + (option '(#\s "search") #t #f + (lambda (opt name arg result) + (alist-cons 'search arg result))) + (option '("show") #t #t + (lambda (opt name arg result) + (alist-cons 'show arg result))))) + +(define (show-help) + (display "Usage: guix rss -o FILE\n") + (newline) + (display " + -h, --help display this help and exit") + (display " + -V, --version display version information and exit") + (display " + -o, --output-file=FILE convert rss to LISP FILE") + (display " + -s, --search=REGEXP search in name and description using REGEXP") + (display " + --show=RSS show details about RSS") + (newline)) + + +;;; +;;; Entry point. +;;; + +(define (feed-rss . args) + (define (parse-options) + ;; Return the alist of option values. + (parse-command-line args %options (list %default-options) + #:build-options? #f)) + (let* ((opts (parse-options)) + (output (assoc-ref opts 'output-file)) + (search (assoc-ref opts 'search)) + (show (assoc-ref opts 'show))) + (cond (show + (leave-on-EPIPE + (for-each (cute feed->recutils <>) + (find-feeds-by-name show)))) + (search + (let* ((patterns (filter-map (match-lambda + (('search . rx) rx) + (_ #f)) + opts)) + (regexps (map (cut make-regexp* <> regexp/icase) patterns))) + (leave-on-EPIPE + (let-values (((rss scores) + (find-feeds-by-description regexps))) + (for-each (lambda (rss score) + (feed->recutils rss + #:extra-fields + `((relevance . ,score)))) + rss + scores))) + #t)) + (output + (with-output-to-file output + (lambda _ (pretty-print (feeds->lisp)))))))) |
