source: trunk/lib/SVN.cc @ 185

Last change on this file since 185 was 185, checked in by Jari Häkkinen, 15 years ago

Fixes #65 and #60. Added support for svndigest:ignore. Uppdated documentation. Reworked binary file treatment.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 10.4 KB
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1// $Id: SVN.cc 185 2006-09-06 02:39:18Z jari $
2
3/*
4  Copyright (C) 2006 Jari Häkkinen
5
6  This file is part of svndigest, http://lev.thep.lu.se/trac/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 2 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 this program; if not, write to the Free Software
20  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
21  02111-1307, USA.
22*/
23
24#include "SVN.h"
25
26#include <map>
27#include <string>
28#include <vector>
29
30#include <apr_allocator.h>
31#include <apr_hash.h>
32#include <subversion-1/svn_client.h>
33#include <subversion-1/svn_cmdline.h>
34#include <subversion-1/svn_path.h>
35#include <subversion-1/svn_pools.h>
36#include <subversion-1/svn_wc.h>
37#include <subversion-1/svn_subst.h>
38
39namespace theplu {
40namespace svndigest {
41
42
43  SVN* SVN::instance_=NULL;
44
45
46  SVN::SVN(void)
47    : adm_access_(NULL), allocator_(NULL), context_(NULL), pool_(NULL)
48  {
49    svn_error_t* err=NULL;
50
51    // initialize something (APR subsystem and more). The APR
52    // subsystem is automatically destroyed at program exit. In case
53    // of several calls to svn_cmdline_init (ie. several exceptions
54    // thrown and caught with subsequent reinitializatios is safe
55    // memorywise but what about APR internal counters?)
56    if (svn_cmdline_init("svndigest",stderr) != EXIT_SUCCESS)
57      throw SVNException("SVN(void): svn_cmdline_init failed");
58
59    /// create top-level pool
60    if (apr_allocator_create(&allocator_))
61      throw SVNException("SVN(void): apr_allocator_create failed");
62    apr_allocator_max_free_set(allocator_,SVN_ALLOCATOR_RECOMMENDED_MAX_FREE);
63    pool_ = svn_pool_create_ex(NULL, allocator_);
64    apr_allocator_owner_set(allocator_, pool_);
65
66    // initialize the repository access library
67    if ((err=svn_ra_initialize(pool_))) {
68      cleanup_failed_initialization(err);
69      throw SVNException("SVN(void): svn_ra_initialize failed");
70    }
71
72    // Check that users .subversion exist. Should this really be done?
73    // If this check is to be done, we might be forced to support a
74    // command line option to change the location of the .subversion
75    // stuff (compare with the svn binary).
76    if ((err=svn_config_ensure(NULL, pool_))) {
77      cleanup_failed_initialization(err);
78      throw SVNException("SVN(void): svn_config_ensure failed");
79    }
80
81    // create a client context object
82    if ((err=svn_client_create_context(&context_, pool_))) {
83      cleanup_failed_initialization(err);
84      throw SVNException("SVN(void): svn_client_create_context failed");
85    }
86
87    if ((err=svn_config_get_config(&(context_->config), NULL, pool_))) {
88      cleanup_failed_initialization(err);
89      throw SVNException("SVN(void): svn_config_get_config failed");
90    }
91
92    // set up authentication stuff
93    if ((err=svn_cmdline_setup_auth_baton(&(context_->auth_baton), false, NULL,
94                                          NULL, NULL, false,
95            static_cast<svn_config_t*>(apr_hash_get(context_->config,
96                                                    SVN_CONFIG_CATEGORY_CONFIG,
97                                                    APR_HASH_KEY_STRING)),
98                                          context_->cancel_func,
99                                          context_->cancel_baton, pool_))) {
100      cleanup_failed_initialization(err);
101      throw SVNException("SVN(void): svn_cmdline_setup_auth_baton failed");
102    }
103  }
104
105
106  SVN::~SVN(void)
107  {
108    if (adm_access_)
109      svn_error_clear(svn_wc_adm_close(adm_access_));
110    svn_pool_destroy(pool_);
111    apr_allocator_destroy(allocator_);
112    // other apr resources acquired in svn_cmdline_init are destroyed
113    // at program exit, ok since SVN is a singleton
114    delete instance_;
115  }
116
117
118  svn_error_t* SVN::client_blame(const std::string& path,
119                                 svn_client_blame_receiver_t receiver,
120                                 void *baton)
121  {
122    // Setup to use all revisions
123    svn_opt_revision_t peg, start, head;
124    peg.kind=svn_opt_revision_unspecified;
125    start.kind=svn_opt_revision_number;
126    start.value.number=0;
127    head.kind=svn_opt_revision_head;
128    apr_pool_t *subpool = svn_pool_create(pool_);
129    svn_error_t* err=svn_client_blame3(path.c_str(), &peg, &start, &head,
130                                       svn_diff_file_options_create(subpool),
131                                       false, receiver, baton, context_,
132                                       subpool);
133    if (err && err->apr_err!=SVN_ERR_CLIENT_IS_BINARY_FILE) {
134      cleanup(err,subpool);
135      throw SVNException("SVN::client_blame: svn_client_blame3 failed");
136    }
137    svn_pool_destroy(subpool);
138    return err;
139  }
140
141
142  void SVN::client_info(const std::string& path, svn_info_receiver_t receiver,
143                        void *baton)
144  {
145    apr_pool_t *subpool = svn_pool_create(pool_);
146    if (svn_error_t *err=svn_client_info(path.c_str(), NULL, NULL, receiver,
147                                         baton, false, context_, subpool)) {
148      cleanup(err,subpool);
149      throw SVNException("repository: svn_client_info failed");
150    }
151    svn_pool_destroy(subpool);
152  }
153
154
155  void SVN::client_proplist(const std::string& path,
156                            std::map<std::string, std::string>& property)
157  {
158    svn_opt_revision_t peg, revision;
159    peg.kind=svn_opt_revision_unspecified;
160    revision.kind=svn_opt_revision_head;
161    apr_pool_t *subpool = svn_pool_create(pool_);
162    apr_array_header_t * properties;
163    svn_error_t *err=svn_client_proplist2(&properties, path.c_str(), &peg,
164                                          &revision, false, context_, subpool);
165    if (err) {
166      cleanup(err,subpool);
167      throw SVNException("repository: svn_client_proplist2 failed");
168    }
169    for (int j = 0; j < properties->nelts; ++j) {
170      svn_client_proplist_item_t *item = 
171        ((svn_client_proplist_item_t **)properties->elts)[j];
172      for (apr_hash_index_t *hi = apr_hash_first(subpool, item->prop_hash); hi; 
173           hi = apr_hash_next (hi)) {
174        const void *key;
175        void *val;
176        apr_hash_this (hi, &key, NULL, &val);
177        svn_string_t *value;
178        err=svn_subst_detranslate_string(&value,
179                                         static_cast<const svn_string_t*>(val),
180                                         false, subpool);
181        if (err) {
182          cleanup(err,subpool);
183          throw SVNException("property: svn_subst_detranslate_string failed");
184        }
185        property[static_cast<const char*>(key)]=value->data;
186      }
187    }
188    svn_pool_destroy(subpool);
189  }
190
191
192  std::vector<std::string> SVN::commit_dates(const std::string& path)
193  {
194    // Allocate space in subpool to pool_ for apr_path (here a string).
195    apr_pool_t *subpool = svn_pool_create(pool_);
196    apr_array_header_t* apr_path=apr_array_make(subpool,1,4);
197    // Copy path to apr_path.
198    (*((const char **) apr_array_push(apr_path))) =
199      apr_pstrdup(subpool, svn_path_internal_style(path.c_str(),subpool));
200
201    // Setup to retrieve all commit logs.
202    svn_opt_revision_t peg, start, head;
203    peg.kind=svn_opt_revision_unspecified;
204    start.kind=svn_opt_revision_number;
205    start.value.number=0;
206    head.kind=svn_opt_revision_head;
207    svn_error_t* err=NULL;
208    // Retrieving the last revision is only needed for the reserve
209    // call below, not needed for the functionality here.
210    if ((err=svn_ra_get_latest_revnum(ra_session_, &(head.value.number),
211                                      subpool))) {
212      cleanup(err,subpool);
213      throw SVNException("commit_dates: svn_ra_get_latest_revnum failed");
214    }
215    // The struct we want to pass through to all log_message_receiver
216    // calls, here we only want to push all commit dates into a
217    // std::vector<std::string>.
218    struct log_receiver_baton lb;
219    lb.commit_dates.reserve(head.value.number+1); // revision 0 is also stored.
220    if ((err=svn_client_log3(apr_path, &peg, &start, &head, 0, false, true,
221                             log_message_receiver, static_cast<void*>(&lb),
222                             context_, subpool))) {
223      cleanup(err,subpool);
224      throw SVNException("commit_dates: svn_client_log3 failed");
225    }
226    svn_pool_destroy(subpool);
227    return lb.commit_dates;
228  }
229
230
231  void SVN::cleanup(svn_error_t *err,apr_pool_t *pool)
232  {
233    svn_handle_error2(err,stderr,false,"svndigest:");
234    svn_error_clear(err);
235    svn_pool_destroy(pool);
236  }
237
238
239  void SVN::cleanup_failed_initialization(svn_error_t *err)
240  {
241    cleanup(err,pool_);
242    apr_allocator_destroy(allocator_);
243  }
244
245
246  svn_error_t *
247  SVN::log_message_receiver(void *baton, apr_hash_t *changed_paths,
248                            svn_revnum_t rev, const char *author,
249                            const char *date, const char *msg, apr_pool_t *pool)
250  {
251    struct log_receiver_baton *lb=static_cast<struct log_receiver_baton*>(baton);
252    if (date && date[0])
253      lb->commit_dates.push_back(date);
254    else
255      throw SVNException("No date defined for revision: " + rev); 
256    return SVN_NO_ERROR;
257  }
258
259
260  void SVN::setup_ra_session(const std::string& path) {
261    // get a session to the repository
262    if (svn_error_t *err=svn_client_open_ra_session(&ra_session_, path.c_str(),
263                                                    context_,pool_)) {
264      // cleanup could be called if a null pool can be passed to
265      // svn_pool_destroy (which is just a #define to apr_pool_destroy
266      svn_handle_error2(err,stderr,false,"svndigest:");
267      svn_error_clear(err);
268      throw SVNException("setup_ra_session: svn_client_open_ra_session failed");
269    }
270  }
271
272
273  void SVN::setup_wc_adm_access(const std::string& path)
274  {
275    // Set up svn administration area access. The whole structure is
276    // setup, maybe this is unnecessary?
277    const char* canonical_path=svn_path_internal_style(path.c_str(), pool_);
278    if (svn_error_t *err=svn_wc_adm_open3(&adm_access_, NULL, canonical_path,
279                                          false, -1, context_->cancel_func,
280                                          context_->cancel_baton, pool_)) {
281      // cleanup could be called if a null pool can be passed to
282      // svn_pool_destroy (which is just a #define to apr_pool_destroy
283      svn_handle_error2(err,stderr,false,"svndigest:");
284      svn_error_clear(err);
285      throw SVNException("setup_wc_adm_access: svn_wc_adm_open3 failed");
286    }
287  }
288
289
290  SVN::vc_status SVN::version_controlled(const std::string& path)
291  {
292    svn_wc_status2_t* status=NULL;
293    apr_pool_t *subpool = svn_pool_create(pool_);
294    if (svn_error_t *err=
295        svn_wc_status2(&status,svn_path_internal_style(path.c_str(), subpool),
296                       adm_access_, subpool)) {
297      cleanup(err,subpool);
298      throw SVNException("version_controlled(): svn_config_get_config failed");
299    }
300    svn_pool_destroy(subpool);
301
302    if ((status->text_status==svn_wc_status_none) ||
303        (status->text_status==svn_wc_status_unversioned))
304      return unversioned;
305    else if (status->text_status==svn_wc_status_normal)
306      return uptodate;
307
308    return unresolved;
309  }
310
311
312}} // end of namespace svndigest and namespace theplu
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