source: trunk/lib/utility.cc @ 439

Last change on this file since 439 was 439, checked in by Peter Johansson, 14 years ago

Merged patch release 0.6.1 to the trunk. Delta 0.6.1 - 0.6

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 4.4 KB
Line 
1// $Id: utility.cc 439 2007-07-09 21:04:52Z peter $
2
3/*
4  Copyright (C) 2006 Jari Häkkinen, Peter Johansson
5  Copyright (C) 2007 Peter Johansson
6
7  This file is part of svndigest, http://trac.thep.lu.se/trac/svndigest
8
9  svndigest is free software; you can redistribute it and/or modify it
10  under the terms of the GNU General Public License as published by
11  the Free Software Foundation; either version 2 of the License, or
12  (at your option) any later version.
13
14  svndigest is distributed in the hope that it will be useful, but
15  WITHOUT ANY WARRANTY; without even the implied warranty of
16  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  General Public License for more details.
18
19  You should have received a copy of the GNU General Public License
20  along with this program; if not, write to the Free Software
21  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
22  02111-1307, USA.
23*/
24
25#include "utility.h"
26
27#include <cstdlib>
28#include <fstream>
29#include <sstream>
30#include <stdexcept>
31#include <string>
32#include <sys/param.h>
33#include <unistd.h>
34
35#include <iostream>
36
37namespace theplu{
38namespace svndigest{
39
40  int access_rights(const std::string& path, const std::string& bits)
41  {
42    if (access(path.c_str(),F_OK)) {
43      throw std::runtime_error(std::string("access_rights: ") + path +
44                               "' does not exist.");
45    }
46    int mode=0;
47    for (u_int i=0; i<bits.length(); ++i)
48      switch (bits[i]) {
49          case 'r':
50            mode|=R_OK;
51            break;
52          case 'w':
53            mode|=W_OK;
54            break;
55          case 'x':
56            mode|=X_OK;
57            break;
58      }
59    return access(path.c_str(),mode);
60  }
61
62
63  std::string file_name(const std::string& full_path)
64  {
65    std::stringstream ss(full_path);
66    std::string name;
67    while (getline(ss,name,'/')) {}
68    return name;
69  }
70
71
72  std::string getenv(const std::string& var)
73  {
74    char* buffer=std::getenv(var.c_str());
75    if (!buffer)
76      throw std::runtime_error("Environment variable "+var+" is not set");
77    return std::string(buffer);
78  }
79
80
81  std::string hex(int x, u_int width)
82  {
83    std::stringstream ss;
84    ss << std::hex << x;
85    if (!width)
86      return ss.str();
87    if (ss.str().size()<width) 
88      return std::string(width-ss.str().size(), '0') + ss.str();
89    return ss.str().substr(0, width);
90  }
91
92
93  std::string htrim(std::string str)
94  {
95    size_t length=str.size();
96    while(length && isspace(str[length-1]))
97      --length;
98    return str.substr(0,length);
99  }
100
101
102  bool is_int(std::string s)
103  {
104    std::stringstream ss(s);
105    int a;
106    ss >> a;
107    if(ss.fail()) 
108      return false;
109    // Check that nothing is left on stream
110    std::string b;
111    ss >> b;
112    return b.empty();
113  }
114
115
116  std::string ltrim(std::string str)
117  {
118    size_t i = 0;
119    while(i<str.size() && isspace(str[i]))
120      ++i;
121    return str.substr(i);
122  }
123
124
125  int percent(int a, int b)
126  {
127    if (b)
128      return (100*a)/b;
129    return 0;
130  }
131
132
133  bool node_exist(const std::string& path)
134  {
135    struct stat buf;
136    return !stat(path.c_str(),&buf);
137  }
138
139
140  std::string pwd(void)
141  {
142    char buffer[MAXPATHLEN];
143    if (!getcwd(buffer, MAXPATHLEN))
144      throw std::runtime_error("Failed to get current working directory");
145    return std::string(buffer);
146  }
147
148
149  void touch(std::string str)
150  {
151    if (!node_exist(str)) {
152      std::ofstream os(str.c_str());
153      os.close();
154    }
155  }
156
157  time_t str2time(const std::string& str)
158  {
159    //  str in format 2006-09-09T10:55:52.132733Z
160    std::stringstream sstream(str);
161    time_t rawtime;
162    struct tm * timeinfo;
163    time ( &rawtime );
164    timeinfo =  gmtime ( &rawtime );
165
166    u_int year, month, day, hour, minute, second;
167    std::string tmp;
168    getline(sstream,tmp,'-');
169    year=atoi(tmp.c_str());
170    timeinfo->tm_year = year - 1900;
171
172    getline(sstream,tmp,'-');
173    month=atoi(tmp.c_str());
174    timeinfo->tm_mon = month - 1;
175
176    getline(sstream,tmp,'T');
177    day=atoi(tmp.c_str());
178    timeinfo->tm_mday = day;
179
180    getline(sstream,tmp,':');
181    hour=atoi(tmp.c_str());
182    timeinfo->tm_hour = hour;
183
184    getline(sstream,tmp,':');
185    minute=atoi(tmp.c_str());
186    timeinfo->tm_min = minute;
187
188    getline(sstream,tmp,'.');
189    second=atoi(tmp.c_str());
190    timeinfo->tm_sec = second;
191
192    return mktime(timeinfo);
193  }
194
195
196  std::string match(std::string::const_iterator& first,
197                    const std::string::const_iterator& last,
198                    std::string str)
199  {
200    if (match_begin(first, last, str)){
201      first+=str.size();
202      return str;
203    }
204    return std::string();
205  }
206
207  notChar::notChar(char c)
208    : char_(c)
209  {}
210
211
212  not2Char::not2Char(char c1, char c2)
213    : char1_(c1), char2_(c2)
214  {}
215   
216
217  not2Str::not2Str(std::string s1, std::string s2)
218    : str1_(s1), str2_(s2)
219  {}
220   
221}} // end of namespace svndigest and namespace theplu
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