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authorNikita Karetnikov <nikita@karetnikov.org>2013-01-28 06:29:10 +0000
committerNikita Karetnikov <nikita@karetnikov.org>2013-01-28 06:47:49 +0000
commitacc084669c01b254f2a12f9f43a8c1b5d16094c1 (patch)
tree574210f9ef88baceb5170aac27ed0e6258a877ec
parentc9ee048595e94752b1932a01f95882524d9f0b36 (diff)
guix-package: Add '--search'.
* guix-package.in (find-packages-by-description): New procedure. (show-help, %options): Add '--search'. (guix-package)[process-query]: Add support for '--search'. * doc/guix.texi (Invoking guix-package): Document it. * tests/guix-package.sh: Add tests.
-rw-r--r--doc/guix.texi9
-rw-r--r--guix-package.in42
-rw-r--r--tests/guix-package.sh5
3 files changed, 56 insertions, 0 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index 52c992044b..410e6fa37c 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -23,6 +23,7 @@
@title{GNU Guix Reference Manual}
@subtitle{Using the GNU Guix Functional Package Manager}
@author Ludovic Courtès
+@author Nikita Karetnikov
@page
@vskip 0pt plus 1filll
@@ -542,6 +543,14 @@ availability of packages:
@table @option
+@item --search=@var{regexp}
+@itemx -s @var{regexp}
+List the available packages whose synopsis or description matches
+@var{regexp}.
+
+For each package, print the following items, separated by tabs: its
+name, version, and the source location of its definition.
+
@item --list-installed[=@var{regexp}]
@itemx -I [@var{regexp}]
List currently installed packages in the specified profile. When
diff --git a/guix-package.in b/guix-package.in
index 46d8d66d2e..913872c925 100644
--- a/guix-package.in
+++ b/guix-package.in
@@ -235,6 +235,31 @@ both when LINK already exists and when it does not."
(switch-link)))
(else (switch-link))))) ; anything else
+(define (find-packages-by-description rx)
+ "Search in SYNOPSIS and DESCRIPTION using RX. Return a list of
+matching packages."
+ (define (same-location? p1 p2)
+ ;; Compare locations of two packages.
+ (equal? (package-location p1) (package-location p2)))
+
+ (delete-duplicates
+ (sort
+ (fold-packages (lambda (package result)
+ (define matches?
+ (cut regexp-exec rx <>))
+
+ (if (or (and=> (package-synopsis package)
+ (compose matches? gettext))
+ (and=> (package-description package)
+ (compose matches? gettext)))
+ (cons package result)
+ result))
+ '())
+ (lambda (p1 p2)
+ (string<? (package-name p1)
+ (package-name p2))))
+ same-location?))
+
;;;
;;; Command-line options.
@@ -266,6 +291,8 @@ Install, remove, or upgrade PACKAGES in a single transaction.\n"))
--verbose produce verbose output"))
(newline)
(display (_ "
+ -s, --search=REGEXP search in synopsis and description using REGEXP"))
+ (display (_ "
-I, --list-installed[=REGEXP]
list installed packages matching REGEXP"))
(display (_ "
@@ -311,6 +338,10 @@ Install, remove, or upgrade PACKAGES in a single transaction.\n"))
(option '("verbose") #f #f
(lambda (opt name arg result)
(alist-cons 'verbose? #t result)))
+ (option '(#\s "search") #t #f
+ (lambda (opt name arg result)
+ (cons `(query search ,(or arg ""))
+ result)))
(option '(#\I "list-installed") #f #t
(lambda (opt name arg result)
(cons `(query list-installed ,(or arg ""))
@@ -532,6 +563,7 @@ Install, remove, or upgrade PACKAGES in a single transaction.\n"))
name (or version "?") output path))))
installed)
#t))
+
(('list-available regexp)
(let* ((regexp (and regexp (make-regexp regexp)))
(available (fold-packages
@@ -554,6 +586,16 @@ Install, remove, or upgrade PACKAGES in a single transaction.\n"))
(string<? (package-name p1)
(package-name p2)))))
#t))
+
+ (('search regexp)
+ (let ((regexp (and regexp (make-regexp regexp))))
+ (for-each (lambda (p)
+ (format #t "~a\t~a\t~a~%"
+ (package-name p)
+ (package-version p)
+ (location->string (package-location p))))
+ (find-packages-by-description regexp))
+ #t))
(_ #f))))
(setlocale LC_ALL "")
diff --git a/tests/guix-package.sh b/tests/guix-package.sh
index bd63c21969..157f863719 100644
--- a/tests/guix-package.sh
+++ b/tests/guix-package.sh
@@ -1,5 +1,6 @@
# GNU Guix --- Functional package management for GNU
# Copyright © 2012, 2013 Ludovic Courtès <ludo@gnu.org>
+# Copyright © 2013 Nikita Karetnikov <nikita@karetnikov.org>
#
# This file is part of GNU Guix.
#
@@ -68,6 +69,10 @@ then
test "`guix-package -p "$profile" -I 'g.*e' | cut -f1`" = "guile-bootstrap"
+ # Search.
+ test "`guix-package -s "GNU Hello" | cut -f1`" = "hello"
+ test "`guix-package -s "n0t4r341p4ck4g3"`" = ""
+
# Remove a package.
guix-package --bootstrap -p "$profile" -r "guile-bootstrap"
test -L "$profile-3-link"