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ghc-hflags
ghc-hflags.spec
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File ghc-hflags.spec of Package ghc-hflags
# # spec file for package ghc-hflags # # Copyright (c) 2017 SUSE LINUX GmbH, Nuernberg, Germany. # # All modifications and additions to the file contributed by third parties # remain the property of their copyright owners, unless otherwise agreed # upon. The license for this file, and modifications and additions to the # file, is the same license as for the pristine package itself (unless the # license for the pristine package is not an Open Source License, in which # case the license is the MIT License). An "Open Source License" is a # license that conforms to the Open Source Definition (Version 1.9) # published by the Open Source Initiative. # Please submit bugfixes or comments via http://bugs.opensuse.org/ # %global pkg_name hflags Name: ghc-%{pkg_name} Version: 0.4.2 Release: 0 Summary: Command line flag parser, very similar to Google's gflags License: Apache-2.0 Group: Development/Libraries/Haskell URL: https://hackage.haskell.org/package/%{pkg_name} Source0: https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz Source1: https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/1.cabal#/%{pkg_name}.cabal BuildRequires: ghc-Cabal-devel BuildRequires: ghc-containers-devel BuildRequires: ghc-rpm-macros BuildRequires: ghc-template-haskell-devel BuildRequires: ghc-text-devel %description The 'HFlags' library supports easy definition of command line flags, reimplementing the ideas from Google's 'gflags' (<http://code.google.com/p/gflags>). Command line flags can be declared in any file at the toplevel, using 'defineFlag'. At runtime, the actual values are assigned to the toplevel 'flags_name' constants. Those can be used purely throughout the program. At the beginning of the 'main' function, '$initHFlags "program description"' has to be called to initialize the flags. All flags will be initialized that are transitively reachable via imports from 'main'. This means, that any Haskell package can easily define command line flags with 'HFlags'. This feature is demonstrated by <http://github.com/errge/hflags/blob/master/examples/ImportExample.hs> and <http://github.com/errge/hflags/tree/master/examples/package>. A simple example (more in the <http://github.com/errge/hflags/tree/master/examples> directory): ' #!%{_bindir}/env runhaskell {-# LANGUAGE TemplateHaskell #-} import HFlags 'defineFlag' "name" "Indiana Jones" "Who to greet." 'defineFlag' "r:repeat" (3 + 4 :: Int) "Number of times to repeat the message." main = do s <- $initHFlags "Simple program v0.1"   sequence_ $ replicate flags_repeat greet   putStrLn $ "Your additional arguments were: " ++ show s   putStrLn $ "Which is the same as: " ++ show HFlags.arguments   where   greet = putStrLn $ "Hello " ++ flags_name ++ ", very nice to meet you!" ' At 'initHFlags' time, the library also tries to gather flags out of environment variables. 'HFLAGS_verbose=True' is equivalent to specify --verbose=True. This environment feature only works with long options and the user has to specify a value even for Bools. /Since version 0.2, you mustn't put the initHFlags in a parentheses with the program description. Just/ '$initHFlags', /it's cleaner./ See <http://github.com/errge/hflags/tree/master/changelog> for recent changes. %package devel Summary: Haskell %{pkg_name} library development files Group: Development/Libraries/Haskell Requires: %{name} = %{version}-%{release} Requires: ghc-compiler = %{ghc_version} Requires(post): ghc-compiler = %{ghc_version} Requires(postun): ghc-compiler = %{ghc_version} %description devel This package provides the Haskell %{pkg_name} library development files. %prep %setup -q -n %{pkg_name}-%{version} cp -p %{SOURCE1} %{pkg_name}.cabal %build %ghc_lib_build %install %ghc_lib_install %post devel %ghc_pkg_recache %postun devel %ghc_pkg_recache %files -f %{name}.files %doc COPYING %files devel -f %{name}-devel.files %doc README.md changelog examples %changelog
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