source: trunk/bin/Parameter.cc @ 727

Last change on this file since 727 was 727, checked in by Jari Häkkinen, 13 years ago

Changes needed to cleanly compile on g++ 4.3 on SuSE 11 x64.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 7.2 KB
Line 
1// $Id: Parameter.cc 727 2008-12-11 15:02:38Z jari $
2
3/*
4  Copyright (C) 2006, 2007, 2008 Jari Häkkinen, Peter Johansson
5
6  This file is part of svndigest, http://dev.thep.lu.se/svndigest
7
8  svndigest is free software; you can redistribute it and/or modify it
9  under the terms of the GNU General Public License as published by
10  the Free Software Foundation; either version 3 of the License, or
11  (at your option) any later version.
12
13  svndigest is distributed in the hope that it will be useful, but
14  WITHOUT ANY WARRANTY; without even the implied warranty of
15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  General Public License for more details.
17
18  You should have received a copy of the GNU General Public License
19  along with svndigest. If not, see <http://www.gnu.org/licenses/>.
20*/
21
22#include "Parameter.h"
23
24#include "ColumnStream.h"
25#include "OptionArg.h"
26#include "OptionHelp.h"
27#include "OptionSwitch.h"
28#include "OptionVersion.h"
29#include "utility.h"
30#include <config.h> // this header file is created by configure
31
32#include <cassert>
33#include <cerrno>
34#include <cstddef>
35#include <cstring>
36#include <fstream>
37#include <iostream>
38#include <sstream>
39#include <stdexcept>
40#include <string>
41#include <sys/stat.h>
42
43namespace theplu {
44namespace svndigest {
45
46  Parameter::Parameter( int argc, char *argv[])
47    : cmd_(
48     "Mandatory arguments to long options are mandatory for short options too.") 
49  {
50    init();
51    try {
52      cmd_.parse(argc, argv);
53    }
54    catch (cmd_error& e) {
55      std::cerr << e.what() << std::endl;
56      exit (-1);
57    }
58
59    // set default values
60    if (!root_->present())
61      root_->value(".");
62
63    if (!target_->present())
64      target_->value(".");
65
66    if (!config_file_->present())
67      config_file_->value(concatenate_path(root_->value(),".svndigest/config"));
68
69    // analyse arguments
70    analyse();
71  }
72
73
74  Parameter::~Parameter(void)
75  {
76    delete config_file_;
77    delete copyright_;
78    delete force_;
79    delete generate_config_;
80    delete help_;
81    delete ignore_cache_;
82    delete report_;
83    delete revisions_;
84    delete root_;
85    delete target_;
86    delete verbose_;
87    delete version_;
88  }
89
90
91  void Parameter::analyse(void)
92  {
93    std::string save_wd = pwd();
94
95    // check root but not if -g option given
96    if (!generate_config()) {
97      check_existence(root_->value());
98      check_readable(root_->value());
99      if (chdir(root_->value().c_str())) {
100        std::stringstream ss;
101        ss << "svndigest: cannot read `" << root_->value() << "': " 
102           << strerror(errno);
103        throw cmd_error(ss.str());
104      }
105      root_->value(pwd());
106      chdir(save_wd.c_str());
107
108      // check target (only if we write report)
109      if (report()) {
110        check_existence(target_->value());
111        check_readable(target_->value());
112        std::string base_root = file_name(root_->value());
113        std::string path = concatenate_path(target_->value(),base_root); 
114        if (access_rights(target_->value().c_str(), "w")) {
115          std::stringstream ss;
116          ss << "svndigest: cannot create directory `" << path
117             << "': " << strerror(errno);
118          throw cmd_error(ss.str());
119        }
120        if (node_exist(path) && !force()) {
121          std::stringstream ss;
122          ss << "svndigest: cannot create directory `" << path << "' "
123             << strerror(EEXIST);
124          throw cmd_error(ss.str());
125        }
126        if (chdir(target_->value().c_str())) {
127          std::stringstream ss;
128          ss << "svndigest: cannot read `" << target_->value() << "': " 
129             << strerror(errno);
130          throw cmd_error(ss.str());
131        }
132        target_->value(pwd());
133        chdir(save_wd.c_str());
134      }
135    }
136
137    // check config file
138    struct stat nodestat;
139    // true also if there is a broken symlink named...
140    bool config_exists = !lstat(config_file_->value().c_str(), &nodestat);
141    // the latter case in order to catch broken symlink
142    if (config_file_->present() || config_exists)
143      // throws if file does not exists
144      check_existence(config_file_->value());
145    if (config_exists) {
146      // throws if file is not readable
147      check_readable(config_file_->value());
148      stat(config_file_->value().c_str(), &nodestat);
149      if (!S_ISREG(nodestat.st_mode)) {
150        std::stringstream ss;
151        ss << "svndigest: `" << config_file_->value() 
152           << "' is not a regular file";
153        throw cmd_error(ss.str());
154      }
155    }
156  }
157
158
159  void Parameter::check_existence(std::string path) const
160  {
161    if (node_exist(path))
162      return;
163    std::stringstream ss;
164    ss << "svndigest: cannot stat `" << path << "': " << strerror(errno);
165    throw cmd_error(ss.str());
166  }
167
168 
169  void Parameter::check_readable(std::string path) const
170  {
171    if (!access_rights(path, "r"))
172      return;
173    std::stringstream ss;
174    ss << "svndigest: cannot open `" << path << "': " << strerror(errno);
175    throw cmd_error(ss.str());
176  }
177 
178
179  std::string Parameter::config_file(void) const
180  {
181    return config_file_->value();
182  }
183
184
185  bool Parameter::copyright(void) const
186  {
187    return copyright_->present();
188  }
189
190
191  bool Parameter::force(void) const
192  {
193    return force_->present();
194  }
195
196
197  bool Parameter::generate_config(void) const
198  {
199    return generate_config_->present();
200  }
201
202
203  bool Parameter::ignore_cache(void) const
204  {
205    return true;
206    return ignore_cache_->present();
207  }
208
209
210  void Parameter::init(void)
211  {
212    // don't use argv[0] because user may rename the binary
213    cmd_.program_name() = PACKAGE_NAME;
214    config_file_=new OptionArg<std::string>(cmd_, "config-file",
215                                "configuration file [<ROOT>/.svndigest/config]");
216    config_file_->print_arg("=FILE");
217    std::stringstream ss;
218    copyright_ = new OptionSwitch(cmd_, "copyright", 
219                                  "update copyright statement");
220
221    ss << "if sub-directory named <ROOT> exists in target directory, remove "
222       << "sub-directory before writing results";
223    force_ = new OptionSwitch(cmd_, "f,force", ss.str());
224    ss.str("");
225
226    help_ = new OptionHelp(cmd_);
227    generate_config_ = 
228      new OptionSwitch(cmd_, "g,generate-config", 
229                       "write configuration file to standard output");
230
231    ss.str("");
232    ss << "ignore cache files and analyze everything from repository";
233    ignore_cache_ = new OptionSwitch(cmd_, "ignore-cache", ss.str());
234         
235    report_ = new OptionSwitch(cmd_, "report", "create no HTML report", true);
236
237    ss.str("");
238    ss << "use revision numbers as time scale instead of dates [dates]";
239    revisions_ = new OptionSwitch(cmd_, "revisions", ss.str());
240
241    root_=
242      new OptionArg<std::string>(cmd_, "r,root", 
243                     "svn controlled directory to perform statistics on [.]");
244    root_->print_arg("=ROOT");
245    target_ = new OptionArg<std::string>(cmd_, "t,target", 
246                                         "output directory [.]");
247    target_->print_arg("=TARGET");
248   
249    verbose_ = new OptionSwitch(cmd_, "v,verbose", "explain what is being done");
250    version_ = new OptionVersion(cmd_, "version", 
251                                 "print version information and exit", verbose_);
252
253    ss.str("");
254    ss << "Report bugs to " << PACKAGE_BUGREPORT << ".\n";
255    help_->post_arguments() = ss.str();
256    help_->synopsis() = 
257      "Generate statistical report for a subversion repository\n";
258  }
259
260
261  bool Parameter::report(void) const
262  {
263    return report_->value();
264  }
265
266
267  bool Parameter::revisions(void) const
268  {
269    return revisions_->present();
270  }
271
272
273  std::string Parameter::root(void) const
274  {
275    return root_->value();
276  }
277
278 
279  std::string Parameter::targetdir(void) const
280  {
281    return target_->value();
282  }
283
284 
285  bool Parameter::verbose(void) const
286  {
287    return verbose_->present();
288  }
289
290
291}} // of namespace svndigest and namespace theplu
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