File ghc-optparse-applicative.spec of Package ghc-optparse-applicative
#
# spec file for package ghc-optparse-applicative
#
# 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 optparse-applicative
%bcond_with tests
Name: ghc-%{pkg_name}
Version: 0.13.1.0
Release: 0
Summary: Utilities and combinators for parsing command line options
License: BSD-3-Clause
Group: Development/Languages/Other
Url: https://hackage.haskell.org/package/%{pkg_name}
Source0: https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
BuildRequires: ghc-Cabal-devel
BuildRequires: ghc-ansi-wl-pprint-devel
BuildRequires: ghc-process-devel
BuildRequires: ghc-rpm-macros
BuildRequires: ghc-transformers-compat-devel
BuildRequires: ghc-transformers-devel
BuildRoot: %{_tmppath}/%{name}-%{version}-build
%if %{with tests}
BuildRequires: ghc-QuickCheck-devel
%endif
%description
Here is a simple example of an applicative option parser:
' data Sample = Sample   { hello :: String   , quiet :: Bool
}
sample :: Parser Sample sample = Sample   <$> strOption   ( long
"hello"   <> metavar "TARGET"   <> help "Target for the greeting" )
  <*> switch   ( long "quiet"   <> help "Whether to be quiet" )
'
The parser is built using applicative style starting from a set of basic
combinators. In this example, 'hello' is defined as an 'option' with a 'String'
argument, while 'quiet' is a boolean 'flag' (called 'switch').
A parser can be used like this:
' greet :: Sample -> IO () greet (Sample h False) = putStrLn $ "Hello, " ++ h
greet _ = return ()
main :: IO () main = execParser opts >>= greet   where   opts = info
(helper <*> sample)   ( fullDesc   <> progDesc "Print a greeting for
TARGET"   <> header "hello - a test for optparse-applicative" ) '
The 'greet' function is the entry point of the program, while 'opts' is a
complete description of the program, used when generating a help text.
The 'helper' combinator takes any parser, and adds a 'help' option to it (which
always fails).
The 'hello' option in this example is mandatory (since it doesn't have a
default value), so running the program without any argument will display a help
text:
>hello - a test for optparse-applicative > >Usage: hello --hello TARGET
[--quiet] > Print a greeting for TARGET > >Available options: > -h,--help Show
this help text > --hello TARGET Target for the greeting > --quiet Whether to be
quiet
containing a short usage summary, and a detailed list of options with
descriptions.
%package devel
Summary: Haskell %{pkg_name} library development files
Group: Development/Libraries/Other
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}
%build
%ghc_lib_build
%install
%ghc_lib_install
%check
%cabal_test
%post devel
%ghc_pkg_recache
%postun devel
%ghc_pkg_recache
%files -f %{name}.files
%defattr(-,root,root,-)
%doc LICENSE
%files devel -f %{name}-devel.files
%defattr(-,root,root,-)
%doc CHANGELOG.md README.md
%changelog
