gnu: Add upower.

* gnu/packages/gnome.scm (upower): New variable.
* gnu/packages/patches/upower-builddir.patch: New patch.
* gnu-system.am (dist_patch_DATA): Add it.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>

gnu-system.am

@@ -540,6 +540,7 @@ dist_patch_DATA =						\
   gnu/packages/patches/unzip-CVE-2014-8140.patch		\
   gnu/packages/patches/unzip-CVE-2014-8141.patch		\
   gnu/packages/patches/util-linux-tests.patch			\
+  gnu/packages/patches/upower-builddir.patch			\
   gnu/packages/patches/valgrind-glibc-2.21.patch		\
   gnu/packages/patches/vpnc-script.patch			\
   gnu/packages/patches/vtk-mesa-10.patch			\

gnu/packages/gnome.scm

@@ -2028,3 +2028,53 @@ (define-public geocode-glib
 coordinates) using the Nominatim service.  geocode-glib caches requests for
 faster results and to avoid unnecessary server load.")
     (license license:lgpl2.0+)))
+
+(define-public upower
+  (package
+    (name "upower")
+    (version "0.99.2")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://upower.freedesktop.org/releases/"
+                                  name "-" version ".tar.xz"))
+              (sha256
+               (base32
+                "0vwlh20jmaf01m38kfn8yx2869a3clmkzlycrj99rf4nvwx4bp79"))
+              (patches (list (search-patch "upower-builddir.patch")))))
+    (build-system glib-or-gtk-build-system)
+    (arguments
+     '( ;; The tests want to contact the system bus, which can't be done in the
+       ;; build environment.  The integration test can run, but the last of
+       ;; the up-self-tests doesn't.  Disable tests for now.
+       #:tests? #f
+       #:configure-flags (list "--localstatedir=/var"
+                               (string-append "--with-udevrulesdir="
+                                              (assoc-ref %outputs "out")
+                                              "/lib/udev/rules.d"))
+       #:phases
+       (modify-phases %standard-phases
+         (add-before 'configure 'patch-/bin/true
+                     (lambda _
+                       (substitute* "configure"
+                         (("/bin/true") (which "true")))))
+         (add-before 'configure 'patch-integration-test
+                     (lambda _
+                       (substitute* "src/linux/integration-test"
+                         (("/usr/bin/python3") (which "python3"))))))))
+    (native-inputs
+     `(("pkg-config" ,pkg-config)
+       ("intltool" ,intltool)
+       ("python" ,python)))
+    (inputs
+     `(("eudev" ,eudev)
+       ("dbus" ,dbus)
+       ("dbus-glib" ,dbus-glib)
+       ("libusb" ,libusb)))
+    (home-page "http://upower.freedesktop.org/")
+    (synopsis "System daemon for managing power devices")
+    (description
+     "UPower is an abstraction for enumerating power devices,
+listening to device events and querying history and statistics.  Any
+application or service on the system can access the org.freedesktop.UPower
+service via the system message bus.")
+    (license license:gpl2+)))

gnu/packages/patches/upower-builddir.patch

+Remove explicit set of UPOWER_CONF_FILE_NAME in up-self-test.c;
+instead the harness should set it.  In Guix we set it explicitly; the
+right thing is to use AM_TEST_ENVIRONMENT and regenerate the
+makefiles, but we can't regenerate because current autotools carp on
+some things, so we patch the Makefile.in instead.
+
+Also fix to not try to create /var/lib/upower if /var isn't writable.
+
+Patch by Andy Wingo <wingo@igalia.com>
+
+--- upower-0.99.2.orig/src/Makefile.in	2014-12-18 10:32:01.000000000 +0100
++++ upower-0.99.2/src/Makefile.in	2015-04-04 19:49:28.020843678 +0200
+@@ -780,6 +780,7 @@
+ 
+ @UP_BUILD_TESTS_TRUE@up_self_test_CFLAGS = $(AM_CFLAGS) $(WARNINGFLAGS_C)
+ @UP_BUILD_TESTS_TRUE@TESTS_ENVIRONMENT = $(DBUS_LAUNCH)
++@UP_BUILD_TESTS_TRUE@AM_TESTS_ENVIRONMENT = UPOWER_CONF_FILE_NAME=$(top_srcdir)/etc/UPower.conf
+ dbusservicedir = $(datadir)/dbus-1/system-services
+ dbusservice_in_files = org.freedesktop.UPower.service.in
+ dbusservice_DATA = $(dbusservice_in_files:.service.in=.service)
+@@ -1789,7 +1790,7 @@
+ @HAVE_SYSTEMDSYSTEMUNITDIR_TRUE@	@sed -e "s|\@libexecdir\@|$(libexecdir)|" $< > $@
+ 
+ install-data-hook:
+-	if test -w $(DESTDIR)$(prefix)/; then \
++	if test -w $(DESTDIR)$(localstatedir)/; then \
+ 		mkdir -p $(DESTDIR)$(historydir); \
+ 	fi
+ 
+--- upower-0.99.2.orig/src/up-self-test.c	2014-07-17 09:46:15.000000000 +0200
++++ upower-0.99.2/src/up-self-test.c	2015-04-04 18:43:04.952741927 +0200
+@@ -295,12 +295,6 @@
+ #endif
+ 	g_test_init (&argc, &argv, NULL);
+ 
+-	/* make check, vs. make distcheck */
+-	if (g_file_test ("../etc/UPower.conf", G_FILE_TEST_EXISTS))
+-		g_setenv ("UPOWER_CONF_FILE_NAME", "../etc/UPower.conf", TRUE);
+-	else
+-		g_setenv ("UPOWER_CONF_FILE_NAME", "../../etc/UPower.conf", TRUE);
+-
+ 	/* tests go here */
+ 	g_test_add_func ("/power/backend", up_test_backend_func);
+ 	g_test_add_func ("/power/device", up_test_device_func);