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)
181 static void splitPathName(const Rules::Match &rule, const QString &pathName, QString *svnprefix_p,
182 QString *repository_p, QString *branch_p, QString *path_p)
184 QString svnprefix = pathName;
185 svnprefix.truncate(rule.rx.matchedLength());
187 *svnprefix_p = svnprefix;
190 *repository_p = svnprefix;
191 repository_p->replace(rule.rx, rule.repository);
195 *branch_p = svnprefix;
196 branch_p->replace(rule.rx, rule.branch);
200 *path_p = pathName.mid(svnprefix.length());
203 static int pathMode(svn_fs_root_t *fs_root, const char *pathname, apr_pool_t *pool)
205 svn_string_t *propvalue;
206 SVN_ERR(svn_fs_node_prop(&propvalue, fs_root, pathname, "svn:executable", pool));
211 // maybe it's a symlink?
212 SVN_ERR(svn_fs_node_prop(&propvalue, fs_root, pathname, "svn:special", pool));
213 if (propvalue && strcmp(propvalue->data, "symlink") == 0)
219 svn_error_t *QIODevice_write(void *baton, const char *data, apr_size_t *len)
221 QIODevice *device = reinterpret_cast<QIODevice *>(baton);
222 device->write(data, *len);
224 if (device->bytesToWrite() > 16384)
225 device->waitForBytesWritten(0);
229 static svn_stream_t *streamForDevice(QIODevice *device, apr_pool_t *pool)
231 svn_stream_t *stream = svn_stream_create(device, pool);
232 svn_stream_set_write(stream, QIODevice_write);
237 static int dumpBlob(Repository::Transaction *txn, svn_fs_root_t *fs_root,
238 const char *pathname, const QString &finalPathName, apr_pool_t *pool)
240 AprAutoPool dumppool(pool);
242 int mode = pathMode(fs_root, pathname, dumppool);
244 svn_filesize_t stream_length;
246 SVN_ERR(svn_fs_file_length(&stream_length, fs_root, pathname, dumppool));
247 QIODevice *io = txn->addFile(finalPathName, mode, stream_length);
251 svn_stream_t *in_stream, *out_stream;
252 SVN_ERR(svn_fs_file_contents(&in_stream, fs_root, pathname, dumppool));
254 // open a generic svn_stream_t for the QIODevice
255 out_stream = streamForDevice(io, dumppool);
256 SVN_ERR(svn_stream_copy(in_stream, out_stream, dumppool));
258 // print an ending newline
265 static int recursiveDumpDir(Repository::Transaction *txn, svn_fs_root_t *fs_root,
266 const QByteArray &pathname, const QString &finalPathName,
269 // get the dir listing
271 SVN_ERR(svn_fs_dir_entries(&entries, fs_root, pathname, pool));
272 AprAutoPool dirpool(pool);
274 for (apr_hash_index_t *i = apr_hash_first(pool, entries); i; i = apr_hash_next(i)) {
278 apr_hash_this(i, &vkey, NULL, &value);
280 svn_fs_dirent_t *dirent = reinterpret_cast<svn_fs_dirent_t *>(value);
281 QByteArray entryName = pathname + '/' + dirent->name;
282 QString entryFinalName;
283 if (finalPathName.isEmpty())
284 entryFinalName = dirent->name;
286 entryFinalName = finalPathName + '/' + dirent->name;
288 if (dirent->kind == svn_node_dir) {
289 if (recursiveDumpDir(txn, fs_root, entryName, entryFinalName, dirpool) == EXIT_FAILURE)
291 } else if (dirent->kind == svn_node_file) {
294 if (dumpBlob(txn, fs_root, entryName, entryFinalName, dirpool) == EXIT_FAILURE)
302 static bool wasDir(svn_fs_t *fs, int revnum, const char *pathname, apr_pool_t *pool)
304 AprAutoPool subpool(pool);
305 svn_fs_root_t *fs_root;
306 if (svn_fs_revision_root(&fs_root, fs, revnum, subpool) != SVN_NO_ERROR)
309 svn_boolean_t is_dir;
310 if (svn_fs_is_dir(&is_dir, fs_root, pathname, subpool) != SVN_NO_ERROR)
316 time_t get_epoch(char *svn_date)
319 memset(&tm, 0, sizeof tm);
320 QByteArray date(svn_date, strlen(svn_date) - 8);
321 strptime(date, "%Y-%m-%dT%H:%M:%S", &tm);
329 QHash<QString, Repository::Transaction *> transactions;
330 MatchRuleList matchRules;
331 RepositoryHash repositories;
332 IdentityHash identities;
335 svn_fs_root_t *fs_root;
338 SvnRevision(int revision, svn_fs_t *f, apr_pool_t *parent_pool)
339 : pool(parent_pool), fs(f), fs_root(0), revnum(revision)
345 SVN_ERR(svn_fs_revision_root(&fs_root, fs, revnum, pool));
349 int prepareTransactions();
352 int exportEntry(const char *path, const svn_fs_path_change_t *change);
353 int exportInternal(const char *path, const svn_fs_path_change_t *change,
354 const char *path_from, svn_revnum_t rev_from,
355 const QString ¤t, const Rules::Match &rule);
356 int recurse(const char *path, const svn_fs_path_change_t *change,
357 const char *path_from, svn_revnum_t rev_from, apr_pool_t *pool);
360 int SvnPrivate::exportRevision(int revnum)
362 SvnRevision rev(revnum, fs, global_pool);
363 rev.matchRules = matchRules;
364 rev.repositories = repositories;
365 rev.identities = identities;
367 // open this revision:
368 printf("Exporting revision %d ", revnum);
371 if (rev.open() == EXIT_FAILURE)
374 if (rev.prepareTransactions() == EXIT_FAILURE)
377 if (rev.transactions.isEmpty()) {
378 printf(" nothing to do\n");
379 return EXIT_SUCCESS; // no changes?
382 if (rev.commit() == EXIT_FAILURE)
389 int SvnRevision::prepareTransactions()
391 // find out what was changed in this revision:
393 SVN_ERR(svn_fs_paths_changed(&changes, fs_root, pool));
394 for (apr_hash_index_t *i = apr_hash_first(pool, changes); i; i = apr_hash_next(i)) {
397 apr_hash_this(i, &vkey, NULL, &value);
398 const char *key = reinterpret_cast<const char *>(vkey);
399 svn_fs_path_change_t *change = reinterpret_cast<svn_fs_path_change_t *>(value);
401 if (exportEntry(key, change) == EXIT_FAILURE)
408 int SvnRevision::commit()
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);
440 int SvnRevision::exportEntry(const char *key, const svn_fs_path_change_t *change)
442 AprAutoPool revpool(pool.data());
443 QString current = QString::fromUtf8(key);
445 // was this copied from somewhere?
446 svn_revnum_t rev_from;
447 const char *path_from;
448 SVN_ERR(svn_fs_copied_from(&rev_from, &path_from, fs_root, key, revpool));
450 // is this a directory?
451 svn_boolean_t is_dir;
452 SVN_ERR(svn_fs_is_dir(&is_dir, fs_root, key, pool));
454 if (path_from == NULL) {
455 // no, it's a new directory being added
456 // Git doesn't handle directories, so we don't either
457 //qDebug() << " mkdir ignored:" << key;
462 qDebug() << " " << key << "was copied from" << path_from;
465 // find the first rule that matches this pathname
466 MatchRuleList::ConstIterator match = findMatchRule(matchRules, revnum, current);
467 if (match != matchRules.constEnd()) {
468 const Rules::Match &rule = *match;
469 switch (rule.action) {
470 case Rules::Match::Ignore:
472 qDebug() << " " << qPrintable(current) << "rev" << revnum
473 << "-> ignored (rule line" << rule.lineNumber << ")";
476 case Rules::Match::Recurse:
479 return recurse(key, change, path_from, rev_from, revpool);
480 if (change->change_kind != svn_fs_path_change_delete)
481 qWarning() << " recurse rule " << rule.rx.pattern() << "line" << rule.lineNumber
482 << "applied to non-directory:" << qPrintable(current);
485 case Rules::Match::Export:
486 return exportInternal(key, change, path_from, rev_from, current, rule);
490 if (wasDir(fs, revnum - 1, key, pool)) {
491 qDebug() << current << "was a directory; ignoring";
492 } else if (change->change_kind == svn_fs_path_change_delete) {
493 qDebug() << current << "is being deleted but I don't know anything about it; ignoring";
495 qCritical() << current << "did not match any rules; cannot continue";
502 int SvnRevision::exportInternal(const char *key, const svn_fs_path_change_t *change,
503 const char *path_from, svn_revnum_t rev_from,
504 const QString ¤t, const Rules::Match &rule)
506 QString svnprefix, repository, branch, path;
507 splitPathName(rule, current, &svnprefix, &repository, &branch, &path);
511 // qDebug() << " " << qPrintable(current) << "rev" << revnum << "->"
512 // << qPrintable(repository) << qPrintable(branch) << qPrintable(path);
514 if (path.isEmpty() && path_from != NULL) {
515 QString previous = QString::fromUtf8(path_from) + '/';
516 MatchRuleList::ConstIterator prevmatch =
517 findMatchRule(matchRules, rev_from, previous);
518 if (prevmatch != matchRules.constEnd()) {
519 QString prevsvnprefix, prevrepository, prevbranch, prevpath;
520 splitPathName(*prevmatch, previous, &prevsvnprefix, &prevrepository,
521 &prevbranch, &prevpath);
523 if (!prevpath.isEmpty()) {
524 qDebug() << qPrintable(current) << "is a partial branch of repository"
525 << qPrintable(prevrepository) << "branch"
526 << qPrintable(prevbranch) << "subdir"
527 << qPrintable(prevpath);
528 } else if (prevrepository != repository) {
529 qWarning() << qPrintable(current) << "rev" << revnum
530 << "is a cross-repository copy (from repository"
531 << qPrintable(prevrepository) << "branch"
532 << qPrintable(prevbranch) << "path"
533 << qPrintable(prevpath) << "rev" << rev_from << ")";
534 } else if (prevbranch == branch) {
535 // same branch and same repository
536 qDebug() << qPrintable(current) << "rev" << revnum
537 << "is an SVN rename from"
538 << qPrintable(previous) << "rev" << rev_from;
541 // same repository but not same branch
542 // this means this is a plain branch
543 qDebug() << qPrintable(repository) << ": branch"
544 << qPrintable(branch) << "is branching from"
545 << qPrintable(prevbranch);
547 Repository *repo = repositories.value(repository, 0);
549 qCritical() << "Rule" << rule.rx.pattern() << "line" << rule.lineNumber
550 << "references unknown repository" << repository;
554 repo->createBranch(branch, revnum, prevbranch, rev_from);
559 Repository::Transaction *txn = transactions.value(repository, 0);
561 Repository *repo = repositories.value(repository, 0);
563 qCritical() << "Rule" << rule.rx.pattern() << "line" << rule.lineNumber
564 << "references unknown repository" << repository;
568 txn = repo->newTransaction(branch, svnprefix, revnum);
572 transactions.insert(repository, txn);
575 if (change->change_kind == svn_fs_path_change_delete)
576 txn->deleteFile(path);
577 else if (!current.endsWith('/'))
578 dumpBlob(txn, fs_root, key, path, pool);
580 recursiveDumpDir(txn, fs_root, key, path, pool);
585 int SvnRevision::recurse(const char *path, const svn_fs_path_change_t *change,
586 const char *path_from, svn_revnum_t rev_from,
589 // get the dir listing
591 SVN_ERR(svn_fs_dir_entries(&entries, fs_root, path, pool));
593 AprAutoPool dirpool(pool);
594 for (apr_hash_index_t *i = apr_hash_first(pool, entries); i; i = apr_hash_next(i)) {
598 apr_hash_this(i, &vkey, NULL, &value);
600 svn_fs_dirent_t *dirent = reinterpret_cast<svn_fs_dirent_t *>(value);
601 QByteArray entry = path + QByteArray("/") + dirent->name;
602 QByteArray entryFrom = path_from + QByteArray("/") + dirent->name;
604 QString current = QString::fromUtf8(entry);
605 if (dirent->kind == svn_node_dir)
608 // find the first rule that matches this pathname
609 MatchRuleList::ConstIterator match = findMatchRule(matchRules, revnum, current);
610 if (match != matchRules.constEnd()) {
611 if (exportInternal(entry, change, entryFrom, rev_from, current, *match) == EXIT_FAILURE)
614 qCritical() << current << "did not match any rules; cannot continue";