[commit: packages/time] format-widths, improve-leapseconds, master, posix-perf, tasty, wip/travis: time-zone test (3317848)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/time

On branches: format-widths,improve-leapseconds,master,posix-perf,tasty,wip/travis
Link       : http://git.haskell.org/packages/time.git/commitdiff/3317848eb12ef6881bd02614dd3baf1fd9664f1e

>---------------------------------------------------------------

commit 3317848eb12ef6881bd02614dd3baf1fd9664f1e
Author: Ashley Yakeley <ashley at semantic.org>
Date:   Tue Apr 26 00:48:29 2005 -0700

    time-zone test
    
    darcs-hash:20050426074829-ac6dd-bb8e92544838e18afe1ec6020e8fb145cfaa56e7


>---------------------------------------------------------------

3317848eb12ef6881bd02614dd3baf1fd9664f1e
 Makefile                | 12 ++++++++++--
 System/Time/Calendar.hs |  4 ++++
 TimeZone.hs             |  9 +++++++++
 3 files changed, 23 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 3a69e06..44f6935 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-default: TestFixed.diff CurrentTime.run TestTime.diff doc
+default: TestFixed.diff CurrentTime.run TestTime.diff TimeZone.diff doc
 
 SRCS = Data/Fixed.hs System/Time/Clock.hs System/Time/TAI.hs System/Time/Calendar.hs
 
@@ -11,6 +11,12 @@ TestTime: TestTime.o libTimeLib.a
 CurrentTime: CurrentTime.o libTimeLib.a
 	ghc $^ -o $@
 
+TimeZone: TimeZone.o libTimeLib.a
+	ghc $^ -o $@
+
+TimeZone.ref: FORCE
+	date +%z > $@
+
 timestuff.o: timestuff.c timestuff.h
 	gcc -o $@ -c $<
 
@@ -20,7 +26,7 @@ libTimeLib.a: $(patsubst %.hs,%.o,$(SRCS)) timestuff.o
 	ranlib $@
 
 clean:
-	rm -rf CurrentTime TestTime TestFixed doc haddock *.out *.a *.o *.hi $(patsubst %.hs,%.o,$(SRCS)) $(patsubst %.hs,%.hi,$(SRCS)) Makefile.bak
+	rm -rf TimeZone TimeZone.ref CurrentTime TestTime TestFixed doc haddock *.out *.a *.o *.hi $(patsubst %.hs,%.o,$(SRCS)) $(patsubst %.hs,%.hi,$(SRCS)) Makefile.bak
 
 doc: haddock/index.html
 
@@ -43,6 +49,8 @@ haddock/index.html: $(SRCS)
 %.o: %.hs
 	ghc -c $< -o $@
 
+FORCE:
+
 .SECONDARY:
 
 depend: TestFixed.hs CurrentTime.hs TestTime.hs $(SRCS)
diff --git a/System/Time/Calendar.hs b/System/Time/Calendar.hs
index 683e017..ca10a6e 100644
--- a/System/Time/Calendar.hs
+++ b/System/Time/Calendar.hs
@@ -44,6 +44,10 @@ minutesToTimezone = MkTimeZone
 hoursToTimezone :: Int -> TimeZone
 hoursToTimezone i = minutesToTimezone (60 * i)
 
+instance Show TimeZone where
+	show (MkTimeZone t) | t < 0 = '-':(show (MkTimeZone (negate t)))
+	show (MkTimeZone t) = (show2 (div t 60)) ++ (show2 (mod t 60))
+
 -- | The UTC time zone
 utc :: TimeZone
 utc = minutesToTimezone 0
diff --git a/TimeZone.hs b/TimeZone.hs
new file mode 100644
index 0000000..3d8b8bc
--- /dev/null
+++ b/TimeZone.hs
@@ -0,0 +1,9 @@
+module Main where
+
+import System.Time.Clock
+import System.Time.Calendar
+
+main :: IO ()
+main = do
+	zone <- getCurrentTimezone
+	putStrLn (show zone)