external/bsd/atf/dist/tools/atf-config.cpp

   1 //
   2 // Automated Testing Framework (atf)
   3 //
   4 // Copyright (c) 2007 The NetBSD Foundation, Inc.
   5 // All rights reserved.
   6 //
   7 // Redistribution and use in source and binary forms, with or without
   8 // modification, are permitted provided that the following conditions
   9 // are met:
  10 // 1. Redistributions of source code must retain the above copyright
  11 //    notice, this list of conditions and the following disclaimer.
  12 // 2. Redistributions in binary form must reproduce the above copyright
  13 //    notice, this list of conditions and the following disclaimer in the
  14 //    documentation and/or other materials provided with the distribution.
  15 //
  16 // THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
  17 // CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
  18 // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20 // IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
  21 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  23 // GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  25 // IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  26 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
  27 // IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28 //
  29
  30 #include <cstdlib>
  31 #include <iostream>
  32 #include <map>
  33 #include <string>
  34
  35 #include "application.hpp"
  36 #include "config.hpp"
  37
  38 class atf_config : public tools::application::app {
  39     static const char* m_description;
  40
  41     bool m_tflag;
  42
  43     void process_option(int, const char*);
  44     std::string specific_args(void) const;
  45     options_set specific_options(void) const;
  46
  47     std::string format_var(const std::string&, const std::string&);
  48
  49 public:
  50     atf_config(void);
  51
  52     int main(void);
  53 };
  54
  55 const char* atf_config::m_description =
  56     "atf-config is a tool that queries the value of several "
  57     "installation-specific configuration values of the atf.  "
  58     "It can be used by external tools to discover where specific "
  59     "internal atf files are installed.";
  60
  61 atf_config::atf_config(void) :
  62     app(m_description, "atf-config(1)", "atf(7)"),
  63     m_tflag(false)
  64 {
  65 }
  66
  67 void
  68 atf_config::process_option(int ch, const char* arg __attribute__((__unused__)))
  69 {
  70     switch (ch) {
  71     case 't':
  72         m_tflag = true;
  73         break;
  74
  75     default:
  76         std::abort();
  77     }
  78 }
  79
  80 std::string
  81 atf_config::specific_args(void)
  82     const
  83 {
  84     return "[var1 [.. varN]]";
  85 }
  86
  87 atf_config::options_set
  88 atf_config::specific_options(void)
  89     const
  90 {
  91     using tools::application::option;
  92     options_set opts;
  93     opts.insert(option('t', "", "Terse output: show values only"));
  94     return opts;
  95 }
  96
  97 std::string
  98 atf_config::format_var(const std::string& name, const std::string& val)
  99 {
 100     std::string str;
 101
 102     if (m_tflag)
 103         str = val;
 104     else
 105         str = name + " : " + val;
 106
 107     return str;
 108 }
 109
 110 int
 111 atf_config::main(void)
 112 {
 113     if (m_argc < 1) {
 114         std::map< std::string, std::string > cv = tools::config::get_all();
 115
 116         for (std::map< std::string, std::string >::const_iterator iter =
 117              cv.begin(); iter != cv.end(); iter++)
 118             std::cout << format_var((*iter).first, (*iter).second) << "\n";
 119     } else {
 120         for (int i = 0; i < m_argc; i++) {
 121             if (!tools::config::has(m_argv[i]))
 122                 throw std::runtime_error(std::string("Unknown variable `") +
 123                                          m_argv[i] + "'");
 124         }
 125
 126         for (int i = 0; i < m_argc; i++) {
 127             std::cout << format_var(m_argv[i], tools::config::get(m_argv[i]))
 128                       << "\n";
 129         }
 130     }
 131
 132     return EXIT_SUCCESS;
 133 }
 134
 135 int
 136 main(int argc, char* const* argv)
 137 {
 138     return atf_config().run(argc, argv);
 139 }