;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012 Nikita Karetnikov <nikita@karetnikov.org>
;;; Copyright © 2010, 2011, 2012, 2013 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013 Nikita Karetnikov <nikita@karetnikov.org>
;;;
;;; This file is part of GNU Guix.
;;;
#:use-module (web client)
#:use-module (web response)
#:use-module (ice-9 regex)
+ #:use-module (ice-9 rdelim)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (guix ftp-client)
#:use-module (guix utils)
#:use-module (guix packages)
- #:export (official-gnu-packages
+ #:export (gnu-package-name
+ gnu-package-mundane-name
+ gnu-package-copyright-holder
+ gnu-package-savannah
+ gnu-package-fsd
+ gnu-package-language
+ gnu-package-logo
+ gnu-package-doc-category
+ gnu-package-doc-summary
+ gnu-package-doc-urls
+ gnu-package-download-url
+
+ official-gnu-packages
+ find-packages
gnu-package?
+
releases
latest-release
gnu-package-name->name+version))
;;;
(define (http-fetch uri)
- "Return a string containing the textual data at URI, a string."
+ "Return an input port containing the textual data at URI, a string."
(let*-values (((resp data)
(http-get (string->uri uri)))
((code)
(response-code resp)))
(case code
((200)
- (if data
- data
- (begin
- ;; XXX: Guile 2.0.5 and earlier did not support chunked transfer
- ;; encoding, which is required when fetching %PACKAGE-LIST-URL
- ;; (see <http://lists.gnu.org/archive/html/guile-devel/2011-09/msg00089.html>).
- ;; Since users may still be using these versions, warn them and
- ;; bail out.
- (format (current-error-port)
- "warning: using Guile ~a, which does not support HTTP ~s encoding~%"
- (version)
- (response-transfer-encoding resp))
- (error "download failed; use a newer Guile"
- uri resp))))
+ (cond ((string<=? (version) "2.0.5")
+ (begin
+ ;; XXX: Guile 2.0.5 and earlier did not support chunked transfer
+ ;; encoding, which is required when fetching %PACKAGE-LIST-URL
+ ;; (see <http://lists.gnu.org/archive/html/guile-devel/2011-09/msg00089.html>).
+ ;; Since users may still be using these versions, warn them and
+ ;; bail out.
+ (format (current-error-port)
+ "warning: using Guile ~a, ~a ~s encoding~%"
+ (version)
+ "which does not support HTTP"
+ (response-transfer-encoding resp))
+ (error "download failed; use a newer Guile"
+ uri resp)))
+ ((string<=? (version) "2.0.7")
+ (open-input-string data))
+ (else data)))
(else
- (error "download failed:" uri code
+ (error "download failed" uri code
(response-reason-phrase resp))))))
(define %package-list-url
"viewvc/*checkout*/gnumaint/"
"gnupackages.txt?root=womb"))
+(define-record-type* <gnu-package-descriptor>
+ gnu-package-descriptor
+ make-gnu-package-descriptor
+
+ gnu-package-descriptor?
+
+ (name gnu-package-name)
+ (mundane-name gnu-package-mundane-name)
+ (copyright-holder gnu-package-copyright-holder)
+ (savannah gnu-package-savannah)
+ (fsd gnu-package-fsd)
+ (language gnu-package-language)
+ (logo gnu-package-logo)
+ (doc-category gnu-package-doc-category)
+ (doc-summary gnu-package-doc-summary)
+ (doc-urls gnu-package-doc-urls)
+ (download-url gnu-package-download-url))
+
(define (official-gnu-packages)
- "Return a list of GNU packages."
- (define %package-line-rx
- (make-regexp "^package: (.+)$"))
+ "Return a list of records, which are GNU packages."
+ (define (group-package-fields port state)
+ ;; Return a list of alists. Each alist contains fields of a GNU
+ ;; package.
+ (let ((line (read-line port))
+ (field-rx (make-regexp "^([[:graph:]]+): (.*)$"))
+ (doc-urls-rx (make-regexp "^doc-url: (.*)$"))
+ (end-rx (make-regexp "^# End. .+Do not remove this line.+")))
+
+ (define (match-field str)
+ ;; Packages are separated by empty strings. If STR is an
+ ;; empty string, create a new list to store fields of a
+ ;; different package. Otherwise, match and create a key-value
+ ;; pair.
+ (match str
+ (""
+ (group-package-fields port (cons '() state)))
+ (str
+ (cond ((regexp-exec doc-urls-rx str)
+ =>
+ (lambda (match)
+ (if (equal? (assoc-ref (first state) "doc-urls") #f)
+ (group-package-fields
+ port (cons (cons (cons "doc-urls"
+ (list
+ (match:substring match 1)))
+ (first state))
+ (drop state 1)))
+ (group-package-fields
+ port (cons (cons (cons "doc-urls"
+ (cons (match:substring match 1)
+ (assoc-ref (first state)
+ "doc-urls")))
+ (assoc-remove! (first state)
+ "doc-urls"))
+ (drop state 1))))))
+ ((regexp-exec field-rx str)
+ =>
+ (lambda (match)
+ (group-package-fields
+ port (cons (cons (cons (match:substring match 1)
+ (match:substring match 2))
+ (first state))
+ (drop state 1)))))
+ (else (group-package-fields port state))))))
+
+ (if (or (eof-object? line)
+ (regexp-exec end-rx line)) ; don't include dummy fields
+ (remove null-list? state)
+ (match-field line))))
+
+ (define (alist->record alist make keys)
+ ;; Apply MAKE, which should be a syntactic constructor, to the
+ ;; values associated with KEYS in ALIST.
+ (let ((args (map (cut assoc-ref alist <>) keys)))
+ (apply make args)))
+
+ (reverse
+ (map (lambda (alist)
+ (alist->record alist
+ make-gnu-package-descriptor
+ (list "package" "mundane-name" "copyright-holder"
+ "savannah" "fsd" "language" "logo"
+ "doc-category" "doc-summary" "doc-urls"
+ "download-url")))
+ (group-package-fields (http-fetch %package-list-url)
+ '(())))))
- (let ((lst (string-split (http-fetch %package-list-url) #\nl)))
- (filter-map (lambda (line)
- (and=> (regexp-exec %package-line-rx line)
- (cut match:substring <> 1)))
- lst)))
+(define (find-packages regexp)
+ "Find GNU packages which satisfy REGEXP."
+ (let ((name-rx (make-regexp regexp)))
+ (filter (lambda (package)
+ (false-if-exception
+ (regexp-exec name-rx (gnu-package-name package))))
+ (official-gnu-packages))))
(define gnu-package?
(memoize
network to check in GNU's database."
;; TODO: Find a way to determine that a package is non-GNU without going
;; through the network.
- (let ((url (and=> (package-source package) origin-uri)))
+ (let ((url (and=> (package-source package) origin-uri))
+ (name (package-name package)))
(or (and (string? url) (string-prefix? "mirror://gnu" url))
- (and (member (package-name package) (official-gnu-packages))
+ (and (member name (map gnu-package-name (official-gnu-packages)))
#t))))))
\f
HCoop / jackhill / guix / guix.git / commitdiff