103 lines
1.9 KiB
C++
103 lines
1.9 KiB
C++
#include "base/application.h"
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#include <boost/lexical_cast.hpp>
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#include <libgen.h>
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#include <linux/limits.h>
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#include <string.h>
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#include <stdlib.h>
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using namespace base;
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using namespace boost;
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using namespace std;
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//----------------------------------------------------------------
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command::command(string const &name)
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: name_(name) {
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}
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void
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command::die(string const &msg)
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{
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cerr << msg << endl;
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usage(cerr);
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exit(1);
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}
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::uint64_t
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command::parse_uint64(string const &str, string const &desc)
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{
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try {
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// FIXME: check trailing garbage is handled
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return lexical_cast<::uint64_t>(str);
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} catch (...) {
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ostringstream out;
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out << "Couldn't parse " << desc << ": '" << str << "'";
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die(out.str());
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}
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return 0; // never get here
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}
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//----------------------------------------------------------------
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int
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application::run(int argc, char **argv)
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{
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string cmd = get_basename(argv[0]);
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if (cmd == string("pdata_tools")) {
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argc--;
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argv++;
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if (!argc) {
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usage();
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return 1;
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}
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cmd = argv[0];
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}
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std::list<command::ptr>::const_iterator it;
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for (it = cmds_.begin(); it != cmds_.end(); ++it) {
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if (cmd == (*it)->get_name()) {
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try {
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return (*it)->run(argc, argv);
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} catch (std::exception const &e) {
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cerr << e.what() << "\n";
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return 1;
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}
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}
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}
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std::cerr << "Unknown command '" << cmd << "'\n";
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usage();
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return 1;
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}
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void
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application::usage()
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{
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std::cerr << "Usage: <command> <args>\n"
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<< "commands:\n";
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std::list<command::ptr>::const_iterator it;
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for (it = cmds_.begin(); it != cmds_.end(); ++it) {
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std::cerr << " " << (*it)->get_name() << "\n";
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}
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}
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std::string
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application::get_basename(std::string const &path) const
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{
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char buffer[PATH_MAX + 1];
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memset(buffer, 0, sizeof(buffer));
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strncpy(buffer, path.c_str(), PATH_MAX);
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return ::basename(buffer);
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}
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//----------------------------------------------------------------
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