79 lines
2.8 KiB
C++
79 lines
2.8 KiB
C++
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// Copyright 2010 Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "utils/cmdline/globals.hpp"
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#include "utils/format/macros.hpp"
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#include "utils/logging/macros.hpp"
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#include "utils/fs/path.hpp"
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#include "utils/sanity.hpp"
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namespace cmdline = utils::cmdline;
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namespace {
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/// The name of the binary used to execute the program.
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static std::string Progname;
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} // anonymous namespace
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/// Initializes the global state of the CLI.
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///
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/// This function can only be called once during the execution of a program,
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/// unless override_for_testing is set to true.
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///
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/// \param argv0 The value of argv[0]; i.e. the program name.
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/// \param override_for_testing Should always be set to false unless for tests
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/// of this functionality, which may set this to true to redefine internal
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/// state.
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void
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cmdline::init(const char* argv0, const bool override_for_testing)
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{
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if (!override_for_testing)
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PRE_MSG(Progname.empty(), "cmdline::init called more than once");
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Progname = utils::fs::path(argv0).leaf_name();
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LD(F("Program name: %s") % Progname);
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POST(!Progname.empty());
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}
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/// Gets the program name.
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///
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/// \pre init() must have been called in advance.
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///
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/// \return The program name.
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const std::string&
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cmdline::progname(void)
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{
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PRE_MSG(!Progname.empty(), "cmdline::init not called yet");
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return Progname;
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}
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