File: ConfigCVSSource.cc

package info (click to toggle)
config-manager 0.3-3
  • links: PTS
  • area: main
  • in suites: etch, etch-m68k
  • size: 3,180 kB
  • ctags: 802
  • sloc: sh: 8,865; cpp: 2,630; python: 2,191; makefile: 127
file content (255 lines) | stat: -rw-r--r-- 6,937 bytes parent folder | download | duplicates (4)
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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
/*
 * Copyright (C) 2003  Robert Collins  <robertc@squid-cache.org>
 * 
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 * DO NOT ALTER THE NEXT LINE
 * arch-tag: 35f7b455-2497-4974-999f-38dd60aa3cc6
 *
 */

#include "ConfigCVSSource.h"
#include <iostream>
#include <stdexcept>
#include <getopt++/GetOption.h>
#include <getopt++/StringOption.h>
#include <getopt++/BoolOption.h>
#include <cassert>
#include <fstream>
#include "Path.h"

using namespace std;

// pserver://anoncvs@sources.redhat.com/cvs/cygwin-apps/libgetopt++?tag=XXX
// -> -d :pserver:anoncvs@sources.redhat.com:/cvs/cygwin-apps co -r XXX libgetopt++
// scheme :pserver:
// repository anoncvs@sources.redhat.com:/cvs/cygwin-apps
// module libgetopt++
// tag XXX

void
ConfigCVSSource::processRepository()
{
    /* currently discarded */
    string::size_type optionPos = repository.rfind("?");

    if (optionPos != string::npos) {
        repository = repository.substr(0, optionPos);
    }

    string::size_type modulePos = repository.rfind("/");

    if (modulePos == string::npos)
        throw new runtime_error ("No CVS module specified");

    module = repository.substr(modulePos + 1);

    if (module.size() == 0)
        throw new runtime_error ("No CVS module specified");

    repository = repository.substr(0, modulePos);

}

ConfigCVSSource::ConfigCVSSource() 
{
}

ConfigCVSSource::ConfigCVSSource(string const &aUrl) : theUrl(aUrl)
{
    if (theUrl.find("pserver://") == 0) {
        scheme = ":pserver:";
        repository = theUrl.substr(10);
	urlPart = repository;
        processRepository();
    } else if (theUrl.find("ext://") == 0) {
        scheme = ":ext:";
        repository = theUrl.substr(6);
	urlPart = repository;
        processRepository();
    }

    if (Verbose()) {
        cout << " processed CVS url: " << scheme << " " << repository << " " << tag
        << " " << module << endl;
    }
}

string
ConfigCVSSource::url(bool const &stripScheme) const
{
    return (stripScheme ? "" : urlScheme(scheme)) + urlPart;
}

void
ConfigCVSSource::get
    (string const &where) const throw(exception *)
{
    // TODO: add support for tags
    string command = "cd `dirname " + where + "` && cvs -d " + scheme + repository + " co -d `basename " + where + "` " + module;

    run (command, "CVS");
}

string
ConfigCVSSource::urlScheme(string const &scheme) 
{
    if (scheme == ":ext:")
	return "ext://";
    return "pserver://";
}

void
ConfigCVSSource::update (string const &where) const throw(exception *)
{
    // TODO: add support for tags
    string command = "cd " + where + " && cvs -q -d " + scheme + repository + " up -Pd ";

    run (command, "CVS");
}

int
ConfigCVSSource::changes (string const &where) const throw(exception *)
{
    // logic should be... 
    // get tree version by inspection
    // use diff -r unless tag == tree version tag.
    // in which case, use diff.
    // for now, just diff.
    string command = "cd " + where + " && cvs -q -d " + scheme + repository + " diff -up";

    return run_query (command, "CVS");
}

int
ConfigCVSSource::missing (string const &where) const throw(exception *)
{
    // TODO: add support for tags
    // logic should be... 
    // get tree version by inspection
    // use rdiff -r -r unless tag == tree version tag.
    // in which case, use diff -r tag.
    string command = "cd " + where + " && cvs -q -d " + scheme + repository + " diff -up ";
    if (tag.size() == 0)
	command += " -rHEAD";
    else
	command += "-r" + tag;

    run (command, "CVS");
    return 2; // TODO: synthesis a result code
}

string
ConfigCVSSource::getOneLineFile(string const & where) const
{
    ifstream buffer(where.c_str());
    string result;
    if (buffer.is_open())
	buffer >> result;
    return result;
}

string 
ConfigCVSSource::getRoot(string const &where) const
{
    return getOneLineFile(where + "/CVS/Root");
}

string 
ConfigCVSSource::getRepository(string const &where) const
{
    return getOneLineFile(where + "/CVS/Repository");
}

string
ConfigCVSSource::treeVersion(string const &where) const
{
  if (Verbose())
        cout << "getting treeVersion for CVS repo at " << where << endl;

    string result = getRoot(where);
    
    if (!result.size())
	throw new runtime_error("Could not get Root for CVS at '" + where + "'");

    result += "/";

    string repository = getRepository(where);

    if (!result.size())
	throw new runtime_error("Could not get Repository for CVS at '" + where + "'");

    result += repository;

    return schemeFromRepository(result);
}

string
ConfigCVSSource::schemeFromRepository(string &result)
{
    /* Now :pserver:->pserver:// (and ext) */
    if (result.substr(0,9) == ":pserver:")
        return "pserver://" + result.substr(9);

    if (result.substr(0,6) == ":ext:")
        return "ext://" + result.substr(6);

    return "ext://" + result;
}

void
ConfigCVSSource::ignore (ConfigSource const *, string const &where) const throw (std::exception *)
{
}

/* Repository (CVS/Root) + module + tag must remain the same */
ConfigCVSSource*
ConfigCVSSource::Create(Path const &location, ConfigSource const *mayBeParent) throw (std::exception *)
{
    ConfigCVSSource const *parent = dynamic_cast<ConfigCVSSource const *>(mayBeParent);

    ConfigCVSSource *result = new ConfigCVSSource;
    string Root = result->getRoot(location.fullName());
    if (!Root.size()) {
	delete result;
	return NULL;
    }
    string Repository = result->getRepository(location.fullName());
    if (!Repository.size()) {
	delete result;
	return NULL;
    }
    /* No parent, valid CVS dir */
    if (!parent) {
	ConfigCVSSource *realResult = new ConfigCVSSource(result->treeVersion(location.fullName()));
	delete result;
	return realResult;
    }
    string canonical = Root + "/" + Repository;
    canonical = schemeFromRepository(canonical);
    /* check for a change in parent */
    if ((canonical.find(urlScheme(parent->scheme) + parent->repository + "/" + parent->module) != 0)  ||
	/* XXX: fixme tags */
	(parent->tag != result->tag))
      {
	/* new source */
	ConfigCVSSource *realResult = new ConfigCVSSource(result->treeVersion(location.fullName()));
	delete result;
	return realResult;
      }
    delete result;
    return const_cast<ConfigCVSSource *>(parent);
}