2 * Copyright (C) 2007 Thiago Macieira <thiago@kde.org>
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.
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.
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/>.
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
25 #define _LARGEFILE_SUPPORT
26 #define _LARGEFILE64_SUPPORT
37 #include <apr_getopt.h>
38 #include <apr_general.h>
41 #include <svn_pools.h>
42 #include <svn_repos.h>
43 #include <svn_types.h>
48 #include "repository.h"
51 #define SVN_ERR(expr) SVN_INT_ERR(expr)
53 typedef QList<Rules::Match> MatchRuleList;
54 typedef QHash<QString, Repository *> RepositoryHash;
55 typedef QHash<QByteArray, QByteArray> IdentityHash;
60 AprAutoPool(const AprAutoPool &);
61 AprAutoPool &operator=(const AprAutoPool &);
63 inline AprAutoPool(apr_pool_t *parent = NULL)
64 { pool = svn_pool_create(parent); }
66 { svn_pool_destroy(pool); }
68 inline void clear() { svn_pool_clear(pool); }
69 inline apr_pool_t *data() const { return pool; }
70 inline operator apr_pool_t *() const { return pool; }
76 MatchRuleList matchRules;
77 RepositoryHash repositories;
78 IdentityHash identities;
80 SvnPrivate(const QString &pathToRepository);
82 int youngestRevision();
83 int exportRevision(int revnum);
85 int openRepository(const QString &pathToRepository);
88 AprAutoPool global_pool;
90 svn_revnum_t youngest_rev;
93 void Svn::initialize()
95 // initialize APR or exit
96 if (apr_initialize() != APR_SUCCESS) {
97 fprintf(stderr, "You lose at apr_initialize().\n");
102 static struct Destructor { ~Destructor() { apr_terminate(); } } destructor;
105 Svn::Svn(const QString &pathToRepository)
106 : d(new SvnPrivate(pathToRepository))
115 void Svn::setMatchRules(const MatchRuleList &matchRules)
117 d->matchRules = matchRules;
120 void Svn::setRepositories(const RepositoryHash &repositories)
122 d->repositories = repositories;
125 int Svn::youngestRevision()
127 return d->youngestRevision();
130 bool Svn::exportRevision(int revnum)
132 return d->exportRevision(revnum) == EXIT_SUCCESS;
135 SvnPrivate::SvnPrivate(const QString &pathToRepository)
138 openRepository(pathToRepository);
140 // get the youngest revision
141 svn_fs_youngest_rev(&youngest_rev, fs, global_pool);
144 SvnPrivate::~SvnPrivate()
146 svn_pool_destroy(global_pool);
149 int SvnPrivate::youngestRevision()
154 int SvnPrivate::openRepository(const QString &pathToRepository)
157 SVN_ERR(svn_repos_open(&repos, QFile::encodeName(pathToRepository), global_pool));
158 fs = svn_repos_fs(repos);
163 static MatchRuleList::ConstIterator
164 findMatchRule(const MatchRuleList &matchRules, int revnum, const QString ¤t)
166 MatchRuleList::ConstIterator it = matchRules.constBegin(),
167 end = matchRules.constEnd();
168 for ( ; it != end; ++it) {
169 if (it->minRevision > revnum)
171 if (it->maxRevision != -1 && it->maxRevision < revnum)
173 if (it->rx.indexIn(current) == 0)
182 static int pathMode(svn_fs_root_t *fs_root, const char *pathname, apr_pool_t *pool)
184 svn_string_t *propvalue;
185 SVN_ERR(svn_fs_node_prop(&propvalue, fs_root, pathname, "svn:executable", pool));
190 // maybe it's a symlink?
191 SVN_ERR(svn_fs_node_prop(&propvalue, fs_root, pathname, "svn:special", pool));
192 if (propvalue && strcmp(propvalue->data, "symlink") == 0)
198 svn_error_t *QIODevice_write(void *baton, const char *data, apr_size_t *len)
200 QIODevice *device = reinterpret_cast<QIODevice *>(baton);
201 device->write(data, *len);
203 if (device->bytesToWrite() > 16384)
204 device->waitForBytesWritten(0);
208 static svn_stream_t *streamForDevice(QIODevice *device, apr_pool_t *pool)
210 svn_stream_t *stream = svn_stream_create(device, pool);
211 svn_stream_set_write(stream, QIODevice_write);
216 static int dumpBlob(Repository::Transaction *txn, svn_fs_root_t *fs_root,
217 const char *pathname, const QString &finalPathName, apr_pool_t *pool)
220 int mode = pathMode(fs_root, pathname, pool);
222 svn_filesize_t stream_length;
224 SVN_ERR(svn_fs_file_length(&stream_length, fs_root, pathname, pool));
225 QIODevice *io = txn->addFile(finalPathName, mode, stream_length);
229 svn_stream_t *in_stream, *out_stream;
230 SVN_ERR(svn_fs_file_contents(&in_stream, fs_root, pathname, pool));
232 // open a generic svn_stream_t for the QIODevice
233 out_stream = streamForDevice(io, pool);
234 SVN_ERR(svn_stream_copy(in_stream, out_stream, pool));
236 // print an ending newline
243 static int recursiveDumpDir(Repository::Transaction *txn, svn_fs_root_t *fs_root,
244 const QByteArray &pathname, const QString &finalPathName,
247 // get the dir listing
249 SVN_ERR(svn_fs_dir_entries(&entries, fs_root, pathname, pool));
250 AprAutoPool dirpool(pool);
252 for (apr_hash_index_t *i = apr_hash_first(pool, entries); i; i = apr_hash_next(i)) {
256 apr_hash_this(i, &vkey, NULL, &value);
258 svn_fs_dirent_t *dirent = reinterpret_cast<svn_fs_dirent_t *>(value);
259 QByteArray entryName = pathname + '/' + dirent->name;
260 QString entryFinalName = finalPathName + '/' + dirent->name;
262 if (dirent->kind == svn_node_dir) {
263 if (recursiveDumpDir(txn, fs_root, entryName, entryFinalName, dirpool) == EXIT_FAILURE)
265 } else if (dirent->kind == svn_node_file) {
266 if (dumpBlob(txn, fs_root, entryName, entryFinalName, dirpool) == EXIT_FAILURE)
272 static bool wasDir(svn_fs_t *fs, int revnum, const char *pathname, apr_pool_t *pool)
274 AprAutoPool subpool(pool);
275 svn_fs_root_t *fs_root;
276 if (svn_fs_revision_root(&fs_root, fs, revnum, subpool) != SVN_NO_ERROR)
279 svn_boolean_t is_dir;
280 if (svn_fs_is_dir(&is_dir, fs_root, pathname, subpool) != SVN_NO_ERROR)
286 time_t get_epoch(char *svn_date)
289 memset(&tm, 0, sizeof tm);
290 QByteArray date(svn_date, strlen(svn_date) - 8);
291 strptime(date, "%Y-%m-%dT%H:%M:%S", &tm);
295 int SvnPrivate::exportRevision(int revnum)
297 AprAutoPool pool(global_pool.data());
298 QHash<QString, Repository::Transaction *> transactions;
300 // open this revision:
301 qDebug() << "Exporting revision" << revnum;
302 svn_fs_root_t *fs_root;
303 SVN_ERR(svn_fs_revision_root(&fs_root, fs, revnum, pool));
305 // find out what was changed in this revision:
307 SVN_ERR(svn_fs_paths_changed(&changes, fs_root, pool));
308 AprAutoPool revpool(pool.data());
309 for (apr_hash_index_t *i = apr_hash_first(pool, changes); i; i = apr_hash_next(i)) {
314 apr_hash_this(i, &vkey, NULL, &value);
315 const char *key = reinterpret_cast<const char *>(vkey);
317 // was this copied from somewhere?
318 svn_revnum_t rev_from;
319 const char *path_from;
320 SVN_ERR(svn_fs_copied_from(&rev_from, &path_from, fs_root, key, revpool));
322 // is this a directory?
323 svn_boolean_t is_dir;
324 SVN_ERR(svn_fs_is_dir(&is_dir, fs_root, key, revpool));
326 if (path_from == NULL) {
327 // no, it's a new directory being added
328 // Git doesn't handle directories, so we don't either
329 qDebug() << " mkdir ignored:" << key;
333 qDebug() << " " << key << "was copied from" << path_from;
336 QString current = QString::fromUtf8(key);
338 // find the first rule that matches this pathname
339 MatchRuleList::ConstIterator match = findMatchRule(matchRules, revnum, current);
340 if (match != matchRules.constEnd()) {
341 const Rules::Match &rule = *match;
342 if (rule.repository.isEmpty()) {
344 qDebug() << " " << qPrintable(current) << "rev" << revnum
345 << "-> ignored (rule line" << rule.lineNumber << ")";
348 QString svnprefix = current;
349 svnprefix.truncate(rule.rx.matchedLength());
351 QString repository = svnprefix;
352 QString branch = svnprefix;
353 QString path = current.mid(rule.rx.matchedLength());
355 // do the replacement
356 repository.replace(rule.rx, rule.repository);
357 branch.replace(rule.rx, rule.branch);
361 // qDebug() << " " << qPrintable(current) << "rev" << revnum << "->"
362 // << qPrintable(repository) << qPrintable(branch) << qPrintable(path);
364 Repository::Transaction *txn = transactions.value(repository, 0);
366 Repository *repo = repositories.value(repository, 0);
368 qCritical() << "Rule" << rule.rx.pattern() << "line" << rule.lineNumber
369 << "references unknown repository" << repository;
373 txn = repo->newTransaction(branch, svnprefix, revnum);
377 transactions.insert(repository, txn);
380 svn_fs_path_change_t *change = reinterpret_cast<svn_fs_path_change_t *>(value);
381 if (change->change_kind == svn_fs_path_change_delete)
382 txn->deleteFile(path);
384 dumpBlob(txn, fs_root, key, path, revpool);
386 recursiveDumpDir(txn, fs_root, key, path, revpool);
390 } else if (is_dir && path_from != NULL) {
391 qDebug() << current << "is probably a new branch";
394 if (match == matchRules.constEnd()) {
396 qDebug() << current << "is a new directory; ignoring";
397 } else if (wasDir(fs, revnum - 1, key, pool)) {
398 qDebug() << current << "was a directory; ignoring";
400 qCritical() << current << "did not match any rules; cannot continue";
407 if (transactions.isEmpty())
408 return EXIT_SUCCESS; // no changes?
410 // now create the commit
411 apr_hash_t *revprops;
412 SVN_ERR(svn_fs_revision_proplist(&revprops, fs, revnum, pool));
413 svn_string_t *svnauthor = (svn_string_t*)apr_hash_get(revprops, "svn:author", APR_HASH_KEY_STRING);
414 svn_string_t *svndate = (svn_string_t*)apr_hash_get(revprops, "svn:date", APR_HASH_KEY_STRING);
415 svn_string_t *svnlog = (svn_string_t*)apr_hash_get(revprops, "svn:log", APR_HASH_KEY_STRING);
417 QByteArray log = (char *)svnlog->data;
418 QByteArray authorident = svnauthor ? identities.value((char *)svnauthor->data) : QByteArray();
419 time_t epoch = get_epoch((char*)svndate->data);
420 if (authorident.isEmpty()) {
421 if (!svnauthor || svn_string_isempty(svnauthor))
422 authorident = "nobody <nobody@localhost>";
424 authorident = svnauthor->data + QByteArray(" <") +
425 svnauthor->data + QByteArray("@localhost>");
428 foreach (Repository::Transaction *txn, transactions) {
429 txn->setAuthor(authorident);
430 txn->setDateTime(epoch);