blob: 538534074f86fb4ed8dcb671cca80f410a2ba689 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
// cvs_iterator ------------------------------------------------------------//
// Copyright Beman Dawes 2003.
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
// WARNING: This is just a quick hack. It doesn't conform to C++ Standard
// Library iterator requirements.
#ifndef BOOST_CVS_ITERATOR_HPP
#define BOOST_CVS_ITERATOR_HPP
#include <string>
#include <assert.h>
#include "boost/filesystem/path.hpp"
#include "boost/filesystem/operations.hpp"
#include "boost/filesystem/fstream.hpp"
#include "boost/noncopyable.hpp"
namespace hack
{
class cvs_iterator : boost::noncopyable
{
boost::filesystem::ifstream entries_file;
boost::filesystem::path dir_path;
boost::filesystem::path value_path;
public:
cvs_iterator(){} // end iterator
~cvs_iterator() { if ( !!entries_file ) entries_file.close(); }
cvs_iterator( const boost::filesystem::path & dir_path ) : dir_path(dir_path)
{
boost::filesystem::path entries_file_path( dir_path / "CVS/Entries" );
entries_file.open( entries_file_path );
if ( !entries_file )
throw std::string( "could not open: " ) + entries_file_path.string();
++*this;
}
const boost::filesystem::path & operator*() const { return value_path; }
cvs_iterator & operator++()
{
assert( !!entries_file );
std::string contents;
do
{
do
{
std::getline( entries_file, contents );
if ( entries_file.eof() )
{
entries_file.close();
value_path = "";
return *this;
}
} while ( contents == "D" );
if ( contents[0] == 'D' ) contents.erase( 0, 1 );
value_path = dir_path
/ boost::filesystem::path( contents.substr( 1, contents.find( '/', 1 ) ) );
// in case entries file is mistaken, do until value_path actually found
} while ( !boost::filesystem::exists( value_path ) );
return *this;
}
bool operator==( const cvs_iterator & rhs )
{ return value_path.string() == rhs.value_path.string(); }
bool operator!=( const cvs_iterator & rhs )
{ return value_path.string() != rhs.value_path.string(); }
};
}
#endif // include guard
|
