[svn-all-fast-export.git] / src / svn.cpp

/*
 *  Copyright (C) 2007  Thiago Macieira <thiago@kde.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, see <http://www.gnu.org/licenses/>.
 */

/*
 * Based on svn-fast-export by Chris Lee <clee@kde.org>
 * License: MIT <http://www.opensource.org/licenses/mit-license.php>
 * URL: git://repo.or.cz/fast-import.git http://repo.or.cz/w/fast-export.git
 */

#define _XOPEN_SOURCE
#define _LARGEFILE_SUPPORT
#define _LARGEFILE64_SUPPORT

#include "svn.h"

#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>

#include <apr_lib.h>
#include <apr_getopt.h>
#include <apr_general.h>

#include <svn_fs.h>
#include <svn_pools.h>
#include <svn_repos.h>
#include <svn_types.h>

#include <QFile>
#include <QDebug>

#include "repository.h"

#undef SVN_ERR
#define SVN_ERR(expr) SVN_INT_ERR(expr)

typedef QList<Rules::Match> MatchRuleList;
typedef QHash<QString, Repository *> RepositoryHash;
typedef QHash<QByteArray, QByteArray> IdentityHash;

class AprAutoPool
{
    apr_pool_t *pool;
    AprAutoPool(const AprAutoPool &);
    AprAutoPool &operator=(const AprAutoPool &);
public:
    inline AprAutoPool(apr_pool_t *parent = NULL)
        { pool = svn_pool_create(parent); }
    inline ~AprAutoPool()
        { svn_pool_destroy(pool); }

    inline void clear() { svn_pool_clear(pool); }
    inline apr_pool_t *data() const { return pool; }
    inline operator apr_pool_t *() const { return pool; }
};

class SvnPrivate
{
public:
    MatchRuleList matchRules;
    RepositoryHash repositories;
    IdentityHash identities;

    SvnPrivate(const QString &pathToRepository);
    ~SvnPrivate();
    int youngestRevision();
    int exportRevision(int revnum);

    int openRepository(const QString &pathToRepository);

private:
    AprAutoPool global_pool;
    svn_fs_t *fs;
    svn_revnum_t youngest_rev;
};

void Svn::initialize()
{
    // initialize APR or exit
    if (apr_initialize() != APR_SUCCESS) {
        fprintf(stderr, "You lose at apr_initialize().\n");
        exit(1);
    }

    // static destructor
    static struct Destructor { ~Destructor() { apr_terminate(); } } destructor;
}

Svn::Svn(const QString &pathToRepository)
    : d(new SvnPrivate(pathToRepository))
{
}

Svn::~Svn()
{
    delete d;
}

void Svn::setMatchRules(const MatchRuleList &matchRules)
{
    d->matchRules = matchRules;
}

void Svn::setRepositories(const RepositoryHash &repositories)
{
    d->repositories = repositories;
}

int Svn::youngestRevision()
{
    return d->youngestRevision();
}

bool Svn::exportRevision(int revnum)
{
    return d->exportRevision(revnum) == EXIT_SUCCESS;
}

SvnPrivate::SvnPrivate(const QString &pathToRepository)
    : global_pool(NULL)
{
    openRepository(pathToRepository);

    // get the youngest revision
    svn_fs_youngest_rev(&youngest_rev, fs, global_pool);
}

SvnPrivate::~SvnPrivate()
{
    svn_pool_destroy(global_pool);
}

int SvnPrivate::youngestRevision()
{
    return youngest_rev;
}

int SvnPrivate::openRepository(const QString &pathToRepository)
{
    svn_repos_t *repos;
    SVN_ERR(svn_repos_open(&repos, QFile::encodeName(pathToRepository), global_pool));
    fs = svn_repos_fs(repos);

    return EXIT_SUCCESS;
}

static MatchRuleList::ConstIterator
findMatchRule(const MatchRuleList &matchRules, int revnum, const QString &current)
{
    MatchRuleList::ConstIterator it = matchRules.constBegin(),
                                end = matchRules.constEnd();
    for ( ; it != end; ++it) {
        if (it->minRevision > revnum)
            continue;
        if (it->maxRevision != -1 && it->maxRevision < revnum)
            continue;
        if (it->rx.indexIn(current) == 0)
            return it;
    }

    // no match
    return end;
}


static int pathMode(svn_fs_root_t *fs_root, const char *pathname, apr_pool_t *pool)
{
    svn_string_t *propvalue;
    SVN_ERR(svn_fs_node_prop(&propvalue, fs_root, pathname, "svn:executable", pool));
    int mode = 0100644;
    if (propvalue)
        mode = 0100755;

    // maybe it's a symlink?
    SVN_ERR(svn_fs_node_prop(&propvalue, fs_root, pathname, "svn:special", pool));
    if (propvalue && strcmp(propvalue->data, "symlink") == 0)
        mode = 0120000;

    return mode;
}

svn_error_t *QIODevice_write(void *baton, const char *data, apr_size_t *len)
{
    QIODevice *device = reinterpret_cast<QIODevice *>(baton);
    device->write(data, *len);

    if (device->bytesToWrite() > 16384)
        device->waitForBytesWritten(0);
    return SVN_NO_ERROR;
}

static svn_stream_t *streamForDevice(QIODevice *device, apr_pool_t *pool)
{
    svn_stream_t *stream = svn_stream_create(device, pool);
    svn_stream_set_write(stream, QIODevice_write);

    return stream;
}

static int dumpBlob(Repository::Transaction *txn, svn_fs_root_t *fs_root,
                    const char *pathname, const QString &finalPathName, apr_pool_t *pool)
{
    // what type is it?
    int mode = pathMode(fs_root, pathname, pool);

    svn_filesize_t stream_length;

    SVN_ERR(svn_fs_file_length(&stream_length, fs_root, pathname, pool));
    QIODevice *io = txn->addFile(finalPathName, mode, stream_length);

#ifndef DRY_RUN
    // open the file
    svn_stream_t *in_stream, *out_stream;
    SVN_ERR(svn_fs_file_contents(&in_stream, fs_root, pathname, pool));

    // open a generic svn_stream_t for the QIODevice
    out_stream = streamForDevice(io, pool);
    SVN_ERR(svn_stream_copy(in_stream, out_stream, pool));

    // print an ending newline
    io->putChar('\n');
#endif

    return EXIT_SUCCESS;
}

static int recursiveDumpDir(Repository::Transaction *txn, svn_fs_root_t *fs_root,
                            const QByteArray &pathname, const QString &finalPathName,
                            apr_pool_t *pool)
{
    // get the dir listing
    apr_hash_t *entries;
    SVN_ERR(svn_fs_dir_entries(&entries, fs_root, pathname, pool));
    AprAutoPool dirpool(pool);

    for (apr_hash_index_t *i = apr_hash_first(pool, entries); i; i = apr_hash_next(i)) {
        dirpool.clear();
        const void *vkey;
        void *value;
        apr_hash_this(i, &vkey, NULL, &value);

        svn_fs_dirent_t *dirent = reinterpret_cast<svn_fs_dirent_t *>(value);
        QByteArray entryName = pathname + '/' + dirent->name;
        QString entryFinalName = finalPathName + '/' + dirent->name;

        if (dirent->kind == svn_node_dir) {
            if (recursiveDumpDir(txn, fs_root, entryName, entryFinalName, dirpool) == EXIT_FAILURE)
                return EXIT_FAILURE;
        } else if (dirent->kind == svn_node_file) {
            if (dumpBlob(txn, fs_root, entryName, entryFinalName, dirpool) == EXIT_FAILURE)
                return EXIT_FAILURE;
        }
    }
}

static bool wasDir(svn_fs_t *fs, int revnum, const char *pathname, apr_pool_t *pool)
{
    AprAutoPool subpool(pool);
    svn_fs_root_t *fs_root;
    if (svn_fs_revision_root(&fs_root, fs, revnum, subpool) != SVN_NO_ERROR)
        return false;

    svn_boolean_t is_dir;
    if (svn_fs_is_dir(&is_dir, fs_root, pathname, subpool) != SVN_NO_ERROR)
        return false;

    return is_dir;
}

time_t get_epoch(char *svn_date)
{
    struct tm tm;
    memset(&tm, 0, sizeof tm);
    QByteArray date(svn_date, strlen(svn_date) - 8);
    strptime(date, "%Y-%m-%dT%H:%M:%S", &tm);
    return mktime(&tm);
}

int SvnPrivate::exportRevision(int revnum)
{
    AprAutoPool pool(global_pool.data());
    QHash<QString, Repository::Transaction *> transactions;

    // open this revision:
    qDebug() << "Exporting revision" << revnum;
    svn_fs_root_t *fs_root;
    SVN_ERR(svn_fs_revision_root(&fs_root, fs, revnum, pool));

    // find out what was changed in this revision:
    apr_hash_t *changes;
    SVN_ERR(svn_fs_paths_changed(&changes, fs_root, pool));
    AprAutoPool revpool(pool.data());
    for (apr_hash_index_t *i = apr_hash_first(pool, changes); i; i = apr_hash_next(i)) {
        revpool.clear();

        const void *vkey;
        void *value;
        apr_hash_this(i, &vkey, NULL, &value);
        const char *key = reinterpret_cast<const char *>(vkey);

        // was this copied from somewhere?
        svn_revnum_t rev_from;
        const char *path_from;
        SVN_ERR(svn_fs_copied_from(&rev_from, &path_from, fs_root, key, revpool));

        // is this a directory?
        svn_boolean_t is_dir;
        SVN_ERR(svn_fs_is_dir(&is_dir, fs_root, key, revpool));
        if (is_dir) {
            if (path_from == NULL) {
                // no, it's a new directory being added
                // Git doesn't handle directories, so we don't either
                qDebug() << "   mkdir ignored:" << key;
                continue;
            }

            qDebug() << "   " << key << "was copied from" << path_from;
        }

        QString current = QString::fromUtf8(key);

        // find the first rule that matches this pathname
        MatchRuleList::ConstIterator match = findMatchRule(matchRules, revnum, current);
        if (match != matchRules.constEnd()) {
            const Rules::Match &rule = *match;
            if (rule.repository.isEmpty()) {
                // ignore rule
                qDebug() << "   " << qPrintable(current) << "rev" << revnum
                         << "-> ignored (rule line" << rule.lineNumber << ")";
                break;
            } else {
                QString svnprefix = current;
                svnprefix.truncate(rule.rx.matchedLength());

                QString repository = svnprefix;
                QString branch = svnprefix;
                QString path = current.mid(rule.rx.matchedLength());

                // do the replacement
                repository.replace(rule.rx, rule.repository);
                branch.replace(rule.rx, rule.branch);

                printf(".");
                fflush(stdout);
//                qDebug() << "   " << qPrintable(current) << "rev" << revnum << "->"
//                         << qPrintable(repository) << qPrintable(branch) << qPrintable(path);

                Repository::Transaction *txn = transactions.value(repository, 0);
                if (!txn) {
                    Repository *repo = repositories.value(repository, 0);
                    if (!repo) {
                        qCritical() << "Rule" << rule.rx.pattern() << "line" << rule.lineNumber
                                    << "references unknown repository" << repository;
                        return EXIT_FAILURE;
                    }

                    txn = repo->newTransaction(branch, svnprefix, revnum);
                    if (!txn)
                        return EXIT_FAILURE;

                    transactions.insert(repository, txn);
                }

                svn_fs_path_change_t *change = reinterpret_cast<svn_fs_path_change_t *>(value);
                if (change->change_kind == svn_fs_path_change_delete)
                    txn->deleteFile(path);
                else if (!is_dir)
                    dumpBlob(txn, fs_root, key, path, revpool);
                else
                    recursiveDumpDir(txn, fs_root, key, path, revpool);

                break;
            }
        } else if (is_dir && path_from != NULL) {
            qDebug() << current << "is probably a new branch";
        }

        if (match == matchRules.constEnd()) {
            if (is_dir) {
                qDebug() << current << "is a new directory; ignoring";
            } else if (wasDir(fs, revnum - 1, key, pool)) {
                qDebug() << current << "was a directory; ignoring";
            } else {
                qCritical() << current << "did not match any rules; cannot continue";
                return EXIT_FAILURE;
            }
        }
    }
    revpool.clear();

    if (transactions.isEmpty())
        return EXIT_SUCCESS;    // no changes?

    // now create the commit
    apr_hash_t *revprops;
    SVN_ERR(svn_fs_revision_proplist(&revprops, fs, revnum, pool));
    svn_string_t *svnauthor = (svn_string_t*)apr_hash_get(revprops, "svn:author", APR_HASH_KEY_STRING);
    svn_string_t *svndate = (svn_string_t*)apr_hash_get(revprops, "svn:date", APR_HASH_KEY_STRING);
    svn_string_t *svnlog = (svn_string_t*)apr_hash_get(revprops, "svn:log", APR_HASH_KEY_STRING);

    QByteArray log = (char *)svnlog->data;
    QByteArray authorident = svnauthor ? identities.value((char *)svnauthor->data) : QByteArray();
    time_t epoch = get_epoch((char*)svndate->data);
    if (authorident.isEmpty()) {
        if (!svnauthor || svn_string_isempty(svnauthor))
            authorident = "nobody <nobody@localhost>";
        else
            authorident = svnauthor->data + QByteArray(" <") +
                          svnauthor->data + QByteArray("@localhost>");
    }

    foreach (Repository::Transaction *txn, transactions) {
        txn->setAuthor(authorident);
        txn->setDateTime(epoch);
        txn->setLog(log);

        txn->commit();
        delete txn;
    }

    printf("\n");
    return EXIT_SUCCESS;
}
Commit	Line	Data
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"
d3e9398d TM	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;
d3e9398d TM	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 &);
b6ba9639 TM	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
f97a8dff TM	163	static MatchRuleList::ConstIterator
	164	findMatchRule(const MatchRuleList &matchRules, int revnum, const QString &current)
	165	{
	166	MatchRuleList::ConstIterator it = matchRules.constBegin(),
	167	end = matchRules.constEnd();
	168	for ( ; it != end; ++it) {
	169	if (it->minRevision > revnum)
	170	continue;
	171	if (it->maxRevision != -1 && it->maxRevision < revnum)
	172	continue;
	173	if (it->rx.indexIn(current) == 0)
	174	return it;
	175	}
	176
	177	// no match
	178	return end;
	179	}
	180
	181
af010386 TM	182	static int pathMode(svn_fs_root_t fs_root, const char pathname, apr_pool_t *pool)
	183	{
	184	svn_string_t *propvalue;
	185	SVN_ERR(svn_fs_node_prop(&propvalue, fs_root, pathname, "svn:executable", pool));
	186	int mode = 0100644;
	187	if (propvalue)
	188	mode = 0100755;
	189
	190	// maybe it's a symlink?
	191	SVN_ERR(svn_fs_node_prop(&propvalue, fs_root, pathname, "svn:special", pool));
b6ba9639	192	if (propvalue && strcmp(propvalue->data, "symlink") == 0)
af010386 TM	193	mode = 0120000;
	194
	195	return mode;
	196	}
	197
	198	svn_error_t QIODevice_write(void baton, const char data, apr_size_t len)
d3e9398d	199	{
af010386 TM	200	QIODevice device = reinterpret_cast<QIODevice >(baton);
af010386 TM	201	device->write(data, *len);
9c31646c TM	202
	203	if (device->bytesToWrite() > 16384)
	204	device->waitForBytesWritten(0);
af010386	205	return SVN_NO_ERROR;
d3e9398d TM	206	}
d3e9398d TM	207
af010386 TM	208	static svn_stream_t streamForDevice(QIODevice device, apr_pool_t *pool)
	209	{
	210	svn_stream_t *stream = svn_stream_create(device, pool);
	211	svn_stream_set_write(stream, QIODevice_write);
	212
	213	return stream;
	214	}
	215
	216	static int dumpBlob(Repository::Transaction txn, svn_fs_root_t fs_root,
b6ba9639	217	const char pathname, const QString &finalPathName, apr_pool_t pool)
af010386 TM	218	{
	219	// what type is it?
	220	int mode = pathMode(fs_root, pathname, pool);
	221
af010386 TM	222	svn_filesize_t stream_length;
	223
	224	SVN_ERR(svn_fs_file_length(&stream_length, fs_root, pathname, pool));
b6ba9639	225	QIODevice *io = txn->addFile(finalPathName, mode, stream_length);
af010386	226
688d69ec	227	#ifndef DRY_RUN
af010386	228	// open the file
688d69ec	229	svn_stream_t in_stream, out_stream;
af010386 TM	230	SVN_ERR(svn_fs_file_contents(&in_stream, fs_root, pathname, pool));
	231
	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));
	235
9c31646c TM	236	// print an ending newline
9c31646c TM	237	io->putChar('\n');
688d69ec	238	#endif
9c31646c	239
af010386 TM	240	return EXIT_SUCCESS;
	241	}
	242
14ddd2a5 TM	243	static int recursiveDumpDir(Repository::Transaction txn, svn_fs_root_t fs_root,
	244	const QByteArray &pathname, const QString &finalPathName,
	245	apr_pool_t *pool)
	246	{
	247	// get the dir listing
	248	apr_hash_t *entries;
	249	SVN_ERR(svn_fs_dir_entries(&entries, fs_root, pathname, pool));
	250	AprAutoPool dirpool(pool);
	251
	252	for (apr_hash_index_t *i = apr_hash_first(pool, entries); i; i = apr_hash_next(i)) {
	253	dirpool.clear();
	254	const void *vkey;
	255	void *value;
	256	apr_hash_this(i, &vkey, NULL, &value);
	257
	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;
	261
	262	if (dirent->kind == svn_node_dir) {
	263	if (recursiveDumpDir(txn, fs_root, entryName, entryFinalName, dirpool) == EXIT_FAILURE)
	264	return EXIT_FAILURE;
	265	} else if (dirent->kind == svn_node_file) {
	266	if (dumpBlob(txn, fs_root, entryName, entryFinalName, dirpool) == EXIT_FAILURE)
	267	return EXIT_FAILURE;
	268	}
	269	}
	270	}
	271
5539acb4 TM	272	static bool wasDir(svn_fs_t fs, int revnum, const char pathname, apr_pool_t *pool)
	273	{
	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)
	277	return false;
	278
	279	svn_boolean_t is_dir;
	280	if (svn_fs_is_dir(&is_dir, fs_root, pathname, subpool) != SVN_NO_ERROR)
	281	return false;
	282
	283	return is_dir;
	284	}
	285
af010386 TM	286	time_t get_epoch(char *svn_date)
	287	{
	288	struct tm tm;
	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);
	292	return mktime(&tm);
	293	}
	294
	295	int SvnPrivate::exportRevision(int revnum)
	296	{
b6ba9639	297	AprAutoPool pool(global_pool.data());
f97a8dff	298	QHash<QString, Repository::Transaction *> transactions;
af010386 TM	299
af010386 TM	300	// open this revision:
b6ba9639	301	qDebug() << "Exporting revision" << revnum;
af010386 TM	302	svn_fs_root_t *fs_root;
af010386 TM	303	SVN_ERR(svn_fs_revision_root(&fs_root, fs, revnum, pool));
af010386 TM	304
af010386 TM	305	// find out what was changed in this revision:
af010386 TM	306	apr_hash_t *changes;
af010386 TM	307	SVN_ERR(svn_fs_paths_changed(&changes, fs_root, pool));
b6ba9639	308	AprAutoPool revpool(pool.data());
af010386	309	for (apr_hash_index_t *i = apr_hash_first(pool, changes); i; i = apr_hash_next(i)) {
b6ba9639	310	revpool.clear();
14ddd2a5	311
af010386 TM	312	const void *vkey;
	313	void *value;
	314	apr_hash_this(i, &vkey, NULL, &value);
	315	const char key = reinterpret_cast<const char >(vkey);
	316
f97a8dff TM	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));
	321
af010386 TM	322	// is this a directory?
	323	svn_boolean_t is_dir;
	324	SVN_ERR(svn_fs_is_dir(&is_dir, fs_root, key, revpool));
14ddd2a5	325	if (is_dir) {
f97a8dff	326	if (path_from == NULL) {
14ddd2a5 TM	327	// no, it's a new directory being added
14ddd2a5 TM	328	// Git doesn't handle directories, so we don't either
f97a8dff	329	qDebug() << " mkdir ignored:" << key;
14ddd2a5	330	continue;
f97a8dff	331	}
14ddd2a5	332
f97a8dff	333	qDebug() << " " << key << "was copied from" << path_from;
14ddd2a5	334	}
af010386 TM	335
	336	QString current = QString::fromUtf8(key);
	337
	338	// find the first rule that matches this pathname
f97a8dff TM	339	MatchRuleList::ConstIterator match = findMatchRule(matchRules, revnum, current);
	340	if (match != matchRules.constEnd()) {
	341	const Rules::Match &rule = *match;
	342	if (rule.repository.isEmpty()) {
	343	// ignore rule
	344	qDebug() << " " << qPrintable(current) << "rev" << revnum
	345	<< "-> ignored (rule line" << rule.lineNumber << ")";
	346	break;
	347	} else {
	348	QString svnprefix = current;
	349	svnprefix.truncate(rule.rx.matchedLength());
5539acb4	350
f97a8dff TM	351	QString repository = svnprefix;
	352	QString branch = svnprefix;
	353	QString path = current.mid(rule.rx.matchedLength());
af010386 TM	354
	355	// do the replacement
	356	repository.replace(rule.rx, rule.repository);
	357	branch.replace(rule.rx, rule.branch);
af010386	358
f97a8dff TM	359	printf(".");
	360	fflush(stdout);
	361	// qDebug() << " " << qPrintable(current) << "rev" << revnum << "->"
	362	// << qPrintable(repository) << qPrintable(branch) << qPrintable(path);
af010386 TM	363
	364	Repository::Transaction *txn = transactions.value(repository, 0);
	365	if (!txn) {
	366	Repository *repo = repositories.value(repository, 0);
	367	if (!repo) {
107fa167	368	qCritical() << "Rule" << rule.rx.pattern() << "line" << rule.lineNumber
af010386 TM	369	<< "references unknown repository" << repository;
	370	return EXIT_FAILURE;
	371	}
	372
af010386 TM	373	txn = repo->newTransaction(branch, svnprefix, revnum);
	374	if (!txn)
	375	return EXIT_FAILURE;
	376
	377	transactions.insert(repository, txn);
	378	}
	379
	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);
14ddd2a5	383	else if (!is_dir)
b6ba9639	384	dumpBlob(txn, fs_root, key, path, revpool);
14ddd2a5 TM	385	else
14ddd2a5 TM	386	recursiveDumpDir(txn, fs_root, key, path, revpool);
af010386 TM	387
	388	break;
	389	}
f97a8dff TM	390	} else if (is_dir && path_from != NULL) {
f97a8dff TM	391	qDebug() << current << "is probably a new branch";
b6ba9639	392	}
af010386	393
f97a8dff	394	if (match == matchRules.constEnd()) {
266afd58	395	if (is_dir) {
f97a8dff	396	qDebug() << current << "is a new directory; ignoring";
266afd58	397	} else if (wasDir(fs, revnum - 1, key, pool)) {
5539acb4 TM	398	qDebug() << current << "was a directory; ignoring";
	399	} else {
	400	qCritical() << current << "did not match any rules; cannot continue";
	401	return EXIT_FAILURE;
	402	}
af010386 TM	403	}
af010386 TM	404	}
b6ba9639	405	revpool.clear();
af010386 TM	406
af010386 TM	407	if (transactions.isEmpty())
ab162d73	408	return EXIT_SUCCESS; // no changes?
af010386 TM	409
	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);
	416
	417	QByteArray log = (char *)svnlog->data;
453ea6b6	418	QByteArray authorident = svnauthor ? identities.value((char *)svnauthor->data) : QByteArray();
af010386 TM	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>";
	423	else
	424	authorident = svnauthor->data + QByteArray(" <") +
	425	svnauthor->data + QByteArray("@localhost>");
	426	}
	427
	428	foreach (Repository::Transaction *txn, transactions) {
	429	txn->setAuthor(authorident);
	430	txn->setDateTime(epoch);
	431	txn->setLog(log);
	432
	433	txn->commit();
	434	delete txn;
	435	}
	436
f97a8dff	437	printf("\n");
af010386 TM	438	return EXIT_SUCCESS;
af010386 TM	439	}