1 // Copyright 2010 The Kyua Authors.
2 // All rights reserved.
3 //
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28
29 #include "utils/cmdline/globals.hpp"
30
31 #include "utils/format/macros.hpp"
32 #include "utils/logging/macros.hpp"
33 #include "utils/fs/path.hpp"
34 #include "utils/sanity.hpp"
35
36 namespace cmdline = utils::cmdline;
37
38 namespace {
39
40
41 /// The name of the binary used to execute the program.
42 static std::string Progname;
43
44
45 } // anonymous namespace
46
47
48 /// Initializes the global state of the CLI.
49 ///
50 /// This function can only be called once during the execution of a program,
51 /// unless override_for_testing is set to true.
52 ///
53 /// \param argv0 The value of argv[0]; i.e. the program name.
54 /// \param override_for_testing Should always be set to false unless for tests
55 /// of this functionality, which may set this to true to redefine internal
56 /// state.
57 void
init(const char * argv0,const bool override_for_testing)58 cmdline::init(const char* argv0, const bool override_for_testing)
59 {
60 if (!override_for_testing)
61 PRE_MSG(Progname.empty(), "cmdline::init called more than once");
62 Progname = utils::fs::path(argv0).leaf_name();
63 LD(F("Program name: %s") % Progname);
64 POST(!Progname.empty());
65 }
66
67
68 /// Gets the program name.
69 ///
70 /// \pre init() must have been called in advance.
71 ///
72 /// \return The program name.
73 const std::string&
progname(void)74 cmdline::progname(void)
75 {
76 PRE_MSG(!Progname.empty(), "cmdline::init not called yet");
77 return Progname;
78 }
79