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d3e9398d TM |
1 | /* |
2 | * Copyright (C) 2007 Thiago Macieira <thiago@kde.org> | |
3 | * | |
4 | * This program is free software: you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation, either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
af010386 TM |
18 | /* |
19 | * Based on svn-fast-export by Chris Lee <clee@kde.org> | |
20 | * License: MIT <http://www.opensource.org/licenses/mit-license.php> | |
21 | * URL: git://repo.or.cz/fast-import.git http://repo.or.cz/w/fast-export.git | |
22 | */ | |
23 | ||
24 | #define _XOPEN_SOURCE | |
25 | #define _LARGEFILE_SUPPORT | |
26 | #define _LARGEFILE64_SUPPORT | |
27 | ||
d3e9398d | 28 | #include "svn.h" |
af010386 TM |
29 | |
30 | #include <unistd.h> | |
31 | #include <string.h> | |
32 | #include <stdio.h> | |
33 | #include <time.h> | |
34 | #include <unistd.h> | |
35 | ||
36 | #include <apr_lib.h> | |
37 | #include <apr_getopt.h> | |
38 | #include <apr_general.h> | |
39 | ||
40 | #include <svn_fs.h> | |
41 | #include <svn_pools.h> | |
42 | #include <svn_repos.h> | |
43 | #include <svn_types.h> | |
44 | ||
45 | #include <QFile> | |
46 | #include <QDebug> | |
47 | ||
d3e9398d TM |
48 | #include "repository.h" |
49 | ||
af010386 TM |
50 | #undef SVN_ERR |
51 | #define SVN_ERR(expr) SVN_INT_ERR(expr) | |
52 | ||
d3e9398d TM |
53 | typedef QList<Rules::Match> MatchRuleList; |
54 | typedef QHash<QString, Repository *> RepositoryHash; | |
af010386 TM |
55 | typedef QHash<QByteArray, QByteArray> IdentityHash; |
56 | ||
57 | class AprAutoPool | |
58 | { | |
59 | apr_pool_t *pool; | |
b6ba9639 TM |
60 | AprAutoPool(const AprAutoPool &); |
61 | AprAutoPool &operator=(const AprAutoPool &); | |
af010386 TM |
62 | public: |
63 | inline AprAutoPool(apr_pool_t *parent = NULL) | |
64 | { pool = svn_pool_create(parent); } | |
65 | inline ~AprAutoPool() | |
66 | { svn_pool_destroy(pool); } | |
67 | ||
b6ba9639 | 68 | inline void clear() { svn_pool_clear(pool); } |
af010386 TM |
69 | inline apr_pool_t *data() const { return pool; } |
70 | inline operator apr_pool_t *() const { return pool; } | |
71 | }; | |
d3e9398d TM |
72 | |
73 | class SvnPrivate | |
74 | { | |
75 | public: | |
af010386 TM |
76 | MatchRuleList matchRules; |
77 | RepositoryHash repositories; | |
78 | IdentityHash identities; | |
79 | ||
d3e9398d TM |
80 | SvnPrivate(const QString &pathToRepository); |
81 | ~SvnPrivate(); | |
82 | int youngestRevision(); | |
af010386 | 83 | int exportRevision(int revnum); |
d3e9398d | 84 | |
af010386 TM |
85 | int openRepository(const QString &pathToRepository); |
86 | ||
87 | private: | |
88 | AprAutoPool global_pool; | |
89 | svn_fs_t *fs; | |
90 | svn_revnum_t youngest_rev; | |
d3e9398d TM |
91 | }; |
92 | ||
93 | void Svn::initialize() | |
94 | { | |
af010386 TM |
95 | // initialize APR or exit |
96 | if (apr_initialize() != APR_SUCCESS) { | |
97 | fprintf(stderr, "You lose at apr_initialize().\n"); | |
98 | exit(1); | |
99 | } | |
100 | ||
101 | // static destructor | |
102 | static struct Destructor { ~Destructor() { apr_terminate(); } } destructor; | |
d3e9398d TM |
103 | } |
104 | ||
105 | Svn::Svn(const QString &pathToRepository) | |
106 | : d(new SvnPrivate(pathToRepository)) | |
107 | { | |
108 | } | |
109 | ||
110 | Svn::~Svn() | |
111 | { | |
112 | delete d; | |
113 | } | |
114 | ||
115 | void Svn::setMatchRules(const MatchRuleList &matchRules) | |
116 | { | |
117 | d->matchRules = matchRules; | |
118 | } | |
119 | ||
120 | void Svn::setRepositories(const RepositoryHash &repositories) | |
121 | { | |
122 | d->repositories = repositories; | |
123 | } | |
124 | ||
125 | int Svn::youngestRevision() | |
126 | { | |
127 | return d->youngestRevision(); | |
128 | } | |
129 | ||
af010386 TM |
130 | bool Svn::exportRevision(int revnum) |
131 | { | |
132 | return d->exportRevision(revnum) == EXIT_SUCCESS; | |
133 | } | |
134 | ||
135 | SvnPrivate::SvnPrivate(const QString &pathToRepository) | |
136 | : global_pool(NULL) | |
137 | { | |
138 | openRepository(pathToRepository); | |
139 | ||
140 | // get the youngest revision | |
141 | svn_fs_youngest_rev(&youngest_rev, fs, global_pool); | |
142 | } | |
143 | ||
144 | SvnPrivate::~SvnPrivate() | |
145 | { | |
146 | svn_pool_destroy(global_pool); | |
147 | } | |
148 | ||
149 | int SvnPrivate::youngestRevision() | |
150 | { | |
151 | return youngest_rev; | |
152 | } | |
153 | ||
154 | int SvnPrivate::openRepository(const QString &pathToRepository) | |
155 | { | |
156 | svn_repos_t *repos; | |
157 | SVN_ERR(svn_repos_open(&repos, QFile::encodeName(pathToRepository), global_pool)); | |
158 | fs = svn_repos_fs(repos); | |
159 | ||
160 | return EXIT_SUCCESS; | |
161 | } | |
162 | ||
163 | static int pathMode(svn_fs_root_t *fs_root, const char *pathname, apr_pool_t *pool) | |
164 | { | |
165 | svn_string_t *propvalue; | |
166 | SVN_ERR(svn_fs_node_prop(&propvalue, fs_root, pathname, "svn:executable", pool)); | |
167 | int mode = 0100644; | |
168 | if (propvalue) | |
169 | mode = 0100755; | |
170 | ||
171 | // maybe it's a symlink? | |
172 | SVN_ERR(svn_fs_node_prop(&propvalue, fs_root, pathname, "svn:special", pool)); | |
b6ba9639 | 173 | if (propvalue && strcmp(propvalue->data, "symlink") == 0) |
af010386 TM |
174 | mode = 0120000; |
175 | ||
176 | return mode; | |
177 | } | |
178 | ||
179 | svn_error_t *QIODevice_write(void *baton, const char *data, apr_size_t *len) | |
d3e9398d | 180 | { |
af010386 TM |
181 | QIODevice *device = reinterpret_cast<QIODevice *>(baton); |
182 | device->write(data, *len); | |
9c31646c TM |
183 | |
184 | if (device->bytesToWrite() > 16384) | |
185 | device->waitForBytesWritten(0); | |
af010386 | 186 | return SVN_NO_ERROR; |
d3e9398d TM |
187 | } |
188 | ||
af010386 TM |
189 | static svn_stream_t *streamForDevice(QIODevice *device, apr_pool_t *pool) |
190 | { | |
191 | svn_stream_t *stream = svn_stream_create(device, pool); | |
192 | svn_stream_set_write(stream, QIODevice_write); | |
193 | ||
194 | return stream; | |
195 | } | |
196 | ||
197 | static int dumpBlob(Repository::Transaction *txn, svn_fs_root_t *fs_root, | |
b6ba9639 | 198 | const char *pathname, const QString &finalPathName, apr_pool_t *pool) |
af010386 TM |
199 | { |
200 | // what type is it? | |
201 | int mode = pathMode(fs_root, pathname, pool); | |
202 | ||
af010386 TM |
203 | svn_filesize_t stream_length; |
204 | ||
205 | SVN_ERR(svn_fs_file_length(&stream_length, fs_root, pathname, pool)); | |
b6ba9639 | 206 | QIODevice *io = txn->addFile(finalPathName, mode, stream_length); |
af010386 | 207 | |
688d69ec | 208 | #ifndef DRY_RUN |
af010386 | 209 | // open the file |
688d69ec | 210 | svn_stream_t *in_stream, *out_stream; |
af010386 TM |
211 | SVN_ERR(svn_fs_file_contents(&in_stream, fs_root, pathname, pool)); |
212 | ||
213 | // open a generic svn_stream_t for the QIODevice | |
214 | out_stream = streamForDevice(io, pool); | |
215 | SVN_ERR(svn_stream_copy(in_stream, out_stream, pool)); | |
216 | ||
9c31646c TM |
217 | // print an ending newline |
218 | io->putChar('\n'); | |
688d69ec | 219 | #endif |
9c31646c | 220 | |
af010386 TM |
221 | return EXIT_SUCCESS; |
222 | } | |
223 | ||
14ddd2a5 TM |
224 | static int recursiveDumpDir(Repository::Transaction *txn, svn_fs_root_t *fs_root, |
225 | const QByteArray &pathname, const QString &finalPathName, | |
226 | apr_pool_t *pool) | |
227 | { | |
228 | // get the dir listing | |
229 | apr_hash_t *entries; | |
230 | SVN_ERR(svn_fs_dir_entries(&entries, fs_root, pathname, pool)); | |
231 | AprAutoPool dirpool(pool); | |
232 | ||
233 | for (apr_hash_index_t *i = apr_hash_first(pool, entries); i; i = apr_hash_next(i)) { | |
234 | dirpool.clear(); | |
235 | const void *vkey; | |
236 | void *value; | |
237 | apr_hash_this(i, &vkey, NULL, &value); | |
238 | ||
239 | svn_fs_dirent_t *dirent = reinterpret_cast<svn_fs_dirent_t *>(value); | |
240 | QByteArray entryName = pathname + '/' + dirent->name; | |
241 | QString entryFinalName = finalPathName + '/' + dirent->name; | |
242 | ||
243 | if (dirent->kind == svn_node_dir) { | |
244 | if (recursiveDumpDir(txn, fs_root, entryName, entryFinalName, dirpool) == EXIT_FAILURE) | |
245 | return EXIT_FAILURE; | |
246 | } else if (dirent->kind == svn_node_file) { | |
247 | if (dumpBlob(txn, fs_root, entryName, entryFinalName, dirpool) == EXIT_FAILURE) | |
248 | return EXIT_FAILURE; | |
249 | } | |
250 | } | |
251 | } | |
252 | ||
5539acb4 TM |
253 | static bool wasDir(svn_fs_t *fs, int revnum, const char *pathname, apr_pool_t *pool) |
254 | { | |
255 | AprAutoPool subpool(pool); | |
256 | svn_fs_root_t *fs_root; | |
257 | if (svn_fs_revision_root(&fs_root, fs, revnum, subpool) != SVN_NO_ERROR) | |
258 | return false; | |
259 | ||
260 | svn_boolean_t is_dir; | |
261 | if (svn_fs_is_dir(&is_dir, fs_root, pathname, subpool) != SVN_NO_ERROR) | |
262 | return false; | |
263 | ||
264 | return is_dir; | |
265 | } | |
266 | ||
af010386 TM |
267 | time_t get_epoch(char *svn_date) |
268 | { | |
269 | struct tm tm; | |
270 | memset(&tm, 0, sizeof tm); | |
271 | QByteArray date(svn_date, strlen(svn_date) - 8); | |
272 | strptime(date, "%Y-%m-%dT%H:%M:%S", &tm); | |
273 | return mktime(&tm); | |
274 | } | |
275 | ||
276 | int SvnPrivate::exportRevision(int revnum) | |
277 | { | |
b6ba9639 | 278 | AprAutoPool pool(global_pool.data()); |
af010386 TM |
279 | |
280 | // open this revision: | |
b6ba9639 | 281 | qDebug() << "Exporting revision" << revnum; |
af010386 TM |
282 | svn_fs_root_t *fs_root; |
283 | SVN_ERR(svn_fs_revision_root(&fs_root, fs, revnum, pool)); | |
af010386 TM |
284 | |
285 | // find out what was changed in this revision: | |
286 | QHash<QString, Repository::Transaction *> transactions; | |
287 | apr_hash_t *changes; | |
288 | SVN_ERR(svn_fs_paths_changed(&changes, fs_root, pool)); | |
b6ba9639 | 289 | AprAutoPool revpool(pool.data()); |
af010386 | 290 | for (apr_hash_index_t *i = apr_hash_first(pool, changes); i; i = apr_hash_next(i)) { |
b6ba9639 | 291 | revpool.clear(); |
14ddd2a5 | 292 | |
af010386 TM |
293 | const void *vkey; |
294 | void *value; | |
295 | apr_hash_this(i, &vkey, NULL, &value); | |
296 | const char *key = reinterpret_cast<const char *>(vkey); | |
297 | ||
298 | // is this a directory? | |
299 | svn_boolean_t is_dir; | |
300 | SVN_ERR(svn_fs_is_dir(&is_dir, fs_root, key, revpool)); | |
14ddd2a5 TM |
301 | if (is_dir) { |
302 | // was this directory copied from somewhere? | |
303 | svn_revnum_t rev_from; | |
304 | const char *path_from; | |
305 | SVN_ERR(svn_fs_copied_from(&rev_from, &path_from, fs_root, key, revpool)); | |
306 | ||
307 | if (path_from == NULL) | |
308 | // no, it's a new directory being added | |
309 | // Git doesn't handle directories, so we don't either | |
310 | continue; | |
311 | ||
312 | qDebug() << "..." << key << "was copied from" << path_from; | |
313 | } | |
af010386 TM |
314 | |
315 | QString current = QString::fromUtf8(key); | |
316 | ||
317 | // find the first rule that matches this pathname | |
318 | bool foundMatch = false; | |
b6ba9639 | 319 | foreach (Rules::Match rule, matchRules) { |
5b8a1c0c TM |
320 | if (rule.minRevision > revnum) |
321 | continue; | |
322 | if (rule.maxRevision != -1 && rule.maxRevision < revnum) | |
323 | continue; | |
af010386 TM |
324 | if (rule.rx.exactMatch(current)) { |
325 | foundMatch = true; | |
5539acb4 TM |
326 | if (rule.repository.isEmpty()) |
327 | // ignore rule | |
328 | break; | |
329 | ||
af010386 TM |
330 | QString repository = current; |
331 | QString branch = current; | |
332 | QString path = current; | |
333 | ||
334 | // do the replacement | |
335 | repository.replace(rule.rx, rule.repository); | |
336 | branch.replace(rule.rx, rule.branch); | |
337 | path.replace(rule.rx, rule.path); | |
338 | ||
14ddd2a5 TM |
339 | qDebug() << "..." << qPrintable(current) << "rev" << revnum << "->" |
340 | << qPrintable(repository) << qPrintable(branch) << qPrintable(path); | |
af010386 TM |
341 | |
342 | Repository::Transaction *txn = transactions.value(repository, 0); | |
343 | if (!txn) { | |
344 | Repository *repo = repositories.value(repository, 0); | |
345 | if (!repo) { | |
346 | qCritical() << "Rule" << rule.rx.pattern() | |
347 | << "references unknown repository" << repository; | |
348 | return EXIT_FAILURE; | |
349 | } | |
350 | ||
351 | QString svnprefix = current; | |
b6ba9639 TM |
352 | if (svnprefix.endsWith(path)) |
353 | svnprefix.chop(path.length()); | |
af010386 TM |
354 | |
355 | txn = repo->newTransaction(branch, svnprefix, revnum); | |
356 | if (!txn) | |
357 | return EXIT_FAILURE; | |
358 | ||
359 | transactions.insert(repository, txn); | |
360 | } | |
361 | ||
362 | svn_fs_path_change_t *change = reinterpret_cast<svn_fs_path_change_t *>(value); | |
363 | if (change->change_kind == svn_fs_path_change_delete) | |
364 | txn->deleteFile(path); | |
14ddd2a5 | 365 | else if (!is_dir) |
b6ba9639 | 366 | dumpBlob(txn, fs_root, key, path, revpool); |
14ddd2a5 TM |
367 | else |
368 | recursiveDumpDir(txn, fs_root, key, path, revpool); | |
af010386 TM |
369 | |
370 | break; | |
371 | } | |
b6ba9639 | 372 | } |
af010386 TM |
373 | |
374 | if (!foundMatch) { | |
266afd58 TM |
375 | if (is_dir) { |
376 | qDebug() << current << "is a directory; ignoring"; | |
377 | } else if (wasDir(fs, revnum - 1, key, pool)) { | |
5539acb4 TM |
378 | qDebug() << current << "was a directory; ignoring"; |
379 | } else { | |
380 | qCritical() << current << "did not match any rules; cannot continue"; | |
381 | return EXIT_FAILURE; | |
382 | } | |
af010386 TM |
383 | } |
384 | } | |
b6ba9639 | 385 | revpool.clear(); |
af010386 TM |
386 | |
387 | if (transactions.isEmpty()) | |
ab162d73 | 388 | return EXIT_SUCCESS; // no changes? |
af010386 TM |
389 | |
390 | // now create the commit | |
391 | apr_hash_t *revprops; | |
392 | SVN_ERR(svn_fs_revision_proplist(&revprops, fs, revnum, pool)); | |
393 | svn_string_t *svnauthor = (svn_string_t*)apr_hash_get(revprops, "svn:author", APR_HASH_KEY_STRING); | |
394 | svn_string_t *svndate = (svn_string_t*)apr_hash_get(revprops, "svn:date", APR_HASH_KEY_STRING); | |
395 | svn_string_t *svnlog = (svn_string_t*)apr_hash_get(revprops, "svn:log", APR_HASH_KEY_STRING); | |
396 | ||
397 | QByteArray log = (char *)svnlog->data; | |
398 | QByteArray authorident = identities.value((char *)svnauthor->data); | |
399 | time_t epoch = get_epoch((char*)svndate->data); | |
400 | if (authorident.isEmpty()) { | |
401 | if (!svnauthor || svn_string_isempty(svnauthor)) | |
402 | authorident = "nobody <nobody@localhost>"; | |
403 | else | |
404 | authorident = svnauthor->data + QByteArray(" <") + | |
405 | svnauthor->data + QByteArray("@localhost>"); | |
406 | } | |
407 | ||
408 | foreach (Repository::Transaction *txn, transactions) { | |
409 | txn->setAuthor(authorident); | |
410 | txn->setDateTime(epoch); | |
411 | txn->setLog(log); | |
412 | ||
413 | txn->commit(); | |
414 | delete txn; | |
415 | } | |
416 | ||
417 | return EXIT_SUCCESS; | |
418 | } |