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Allow user to limit version argument to --version #103

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Jun 5, 2021
+9 −0
Merged

Allow user to limit version argument to --version #103

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5 changes: 5 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,12 +1,17 @@
cmake_minimum_required(VERSION 3.8)
project(argparse VERSION 1.0.0 LANGUAGES CXX)
option(ARGPARSE_BUILD_TESTS OFF)
option(ARGPARSE_LONG_VERSION_ARG_ONLY OFF)

include(GNUInstallDirs)

add_library(argparse INTERFACE)
add_library(argparse::argparse ALIAS argparse)

if (ARGPARSE_LONG_VERSION_ARG_ONLY)
target_compile_definitions(argparse INTERFACE ARGPARSE_LONG_VERSION_ARG_ONLY=true)
endif ()

target_compile_features(argparse INTERFACE cxx_std_17)
target_include_directories(argparse INTERFACE
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
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4 changes: 4 additions & 0 deletions include/argparse/argparse.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -815,7 +815,11 @@ class ArgumentParser {
std::string aVersion = "1.0")
: mProgramName(std::move(aProgramName)), mVersion(std::move(aVersion)) {
add_argument("-h", "--help").help("shows help message and exits").nargs(0);
#ifndef ARGPARSE_LONG_VERSION_ARG_ONLY
add_argument("-v", "--version")
#else
add_argument("--version")
#endif
.help("prints version information and exits")
.nargs(0);
}
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