/* This implements the fs_library_vtable_t.hotcopy() API. Copy a
possibly live Subversion filesystem SRC_FS from SRC_PATH to a
DST_FS at DEST_PATH. If INCREMENTAL is TRUE, make an effort not to
re-copy data which already exists in DST_FS.
The CLEAN_LOGS argument is ignored and included for Subversion
1.0.x compatibility. Perform all temporary allocations in POOL. */
static svn_error_t *
fs_hotcopy(svn_fs_t *src_fs,
svn_fs_t *dst_fs,
const char *src_path,
const char *dst_path,
svn_boolean_t clean_logs,
svn_boolean_t incremental,
svn_cancel_func_t cancel_func,
void *cancel_baton,
apr_pool_t *pool)
{
SVN_ERR(svn_fs__check_fs(src_fs, FALSE));
SVN_ERR(initialize_fs_struct(src_fs));
SVN_ERR(svn_fs_fs__open(src_fs, src_path, pool));
SVN_ERR(svn_fs_fs__initialize_caches(src_fs, pool));
SVN_ERR(fs_serialized_init(src_fs, pool, pool));
SVN_ERR(svn_fs__check_fs(dst_fs, FALSE));
SVN_ERR(initialize_fs_struct(dst_fs));
/* In INCREMENTAL mode, svn_fs_fs__hotcopy() will open DST_FS.
Otherwise, it's not an FS yet --- possibly just an empty dir --- so
can't be opened.
*/
return svn_fs_fs__hotcopy(src_fs, dst_fs, src_path, dst_path,
incremental, cancel_func, cancel_baton, pool);
}
/* This implements the fs_library_vtable_t.hotcopy() API. Copy a
possibly live Subversion filesystem SRC_FS from SRC_PATH to a
DST_FS at DEST_PATH. If INCREMENTAL is TRUE, make an effort not to
re-copy data which already exists in DST_FS.
The CLEAN_LOGS argument is ignored and included for Subversion
1.0.x compatibility. The NOTIFY_FUNC and NOTIFY_BATON arguments
are also currently ignored.
Perform all temporary allocations in SCRATCH_POOL. */
static svn_error_t *
x_hotcopy(svn_fs_t *src_fs,
svn_fs_t *dst_fs,
const char *src_path,
const char *dst_path,
svn_boolean_t clean_logs,
svn_boolean_t incremental,
svn_fs_hotcopy_notify_t notify_func,
void *notify_baton,
svn_cancel_func_t cancel_func,
void *cancel_baton,
svn_mutex__t *common_pool_lock,
apr_pool_t *scratch_pool,
apr_pool_t *common_pool)
{
/* Open the source repo as usual. */
SVN_ERR(x_open(src_fs, src_path, common_pool_lock, scratch_pool,
common_pool));
if (cancel_func)
SVN_ERR(cancel_func(cancel_baton));
SVN_ERR(svn_fs__check_fs(dst_fs, FALSE));
SVN_ERR(initialize_fs_struct(dst_fs));
/* In INCREMENTAL mode, svn_fs_x__hotcopy() will open DST_FS.
Otherwise, it's not an FS yet --- possibly just an empty dir --- so
can't be opened.
*/
return svn_fs_x__hotcopy(src_fs, dst_fs, src_path, dst_path,
incremental, notify_func, notify_baton,
cancel_func, cancel_baton, common_pool_lock,
scratch_pool, common_pool);
}
/* This implements the fs_library_vtable_t.open_for_recovery() API. */
static svn_error_t *
fs_open_for_recovery(svn_fs_t *fs,
const char *path,
svn_mutex__t *common_pool_lock,
apr_pool_t *pool,
apr_pool_t *common_pool)
{
svn_error_t * err;
svn_revnum_t youngest_rev;
apr_pool_t * subpool = svn_pool_create(pool);
/* Recovery for FSFS is currently limited to recreating the 'current'
file from the latest revision. */
/* The only thing we have to watch out for is that the 'current' file
might not exist or contain garbage. So we'll try to read it here
and provide or replace the existing file if we couldn't read it.
(We'll also need it to exist later anyway as a source for the new
file's permissions). */
/* Use a partly-filled fs pointer first to create 'current'. */
fs->path = apr_pstrdup(fs->pool, path);
SVN_ERR(initialize_fs_struct(fs));
/* Figure out the repo format and check that we can even handle it. */
SVN_ERR(svn_fs_fs__read_format_file(fs, subpool));
/* Now, read 'current' and try to patch it if necessary. */
err = svn_fs_fs__youngest_rev(&youngest_rev, fs, subpool);
if (err)
{
const char *file_path;
/* 'current' file is missing or contains garbage. Since we are trying
* to recover from whatever problem there is, being picky about the
* error code here won't do us much good. If there is a persistent
* problem that we can't fix, it will show up when we try rewrite the
* file a few lines further below and we will report the failure back
* to the caller.
*
* Start recovery with HEAD = 0. */
svn_error_clear(err);
file_path = svn_fs_fs__path_current(fs, subpool);
/* Best effort to ensure the file exists and is valid.
* This may fail for r/o filesystems etc. */
SVN_ERR(svn_io_remove_file2(file_path, TRUE, subpool));
SVN_ERR(svn_io_file_create_empty(file_path, subpool));
SVN_ERR(svn_fs_fs__write_current(fs, 0, 1, 1, subpool));
}
uninitialize_fs_struct(fs);
svn_pool_destroy(subpool);
/* Now open the filesystem properly by calling the vtable method directly. */
return fs_open(fs, path, common_pool_lock, pool, common_pool);
}
/* This implements the fs_library_vtable_t.open() API. Open an FSFS
Subversion filesystem located at PATH, set *FS to point to the
correct vtable for the filesystem. Use POOL for any temporary
allocations, and COMMON_POOL for fs-global allocations. */
static svn_error_t *
fs_open(svn_fs_t *fs, const char *path, apr_pool_t *pool,
apr_pool_t *common_pool)
{
initialize_fs_struct(fs);
SVN_ERR(svn_fs_fs__open(fs, path, pool));
return fs_serialized_init(fs, common_pool, pool);
}
/* This implements the fs_library_vtable_t.uprade_fs() API. */
static svn_error_t *
fs_upgrade(svn_fs_t *fs, const char *path, apr_pool_t *pool,
apr_pool_t *common_pool)
{
SVN_ERR(svn_fs__check_fs(fs, FALSE));
initialize_fs_struct(fs);
SVN_ERR(svn_fs_fs__open(fs, path, pool));
SVN_ERR(fs_serialized_init(fs, common_pool, pool));
return svn_fs_fs__upgrade(fs, pool);
}
/* This implements the fs_library_vtable_t.create() API. Create a new
fsfs-backed Subversion filesystem at path PATH and link it into
*FS. Perform temporary allocations in POOL, and fs-global allocations
in COMMON_POOL. */
static svn_error_t *
fs_create(svn_fs_t *fs, const char *path, apr_pool_t *pool,
apr_pool_t *common_pool)
{
SVN_ERR(svn_fs__check_fs(fs, FALSE));
SVN_ERR(initialize_fs_struct(fs));
SVN_ERR(svn_fs_fs__create(fs, path, pool));
SVN_ERR(svn_fs_fs__initialize_caches(fs, pool));
return fs_serialized_init(fs, common_pool, pool);
}
static svn_error_t *
fs_pack(svn_fs_t *fs,
const char *path,
svn_fs_pack_notify_t notify_func,
void *notify_baton,
svn_cancel_func_t cancel_func,
void *cancel_baton,
apr_pool_t *pool)
{
SVN_ERR(svn_fs__check_fs(fs, FALSE));
SVN_ERR(initialize_fs_struct(fs));
SVN_ERR(svn_fs_fs__open(fs, path, pool));
SVN_ERR(svn_fs_fs__initialize_caches(fs, pool));
SVN_ERR(fs_serialized_init(fs, pool, pool));
return svn_fs_fs__pack(fs, notify_func, notify_baton,
cancel_func, cancel_baton, pool);
}
static svn_error_t *
fs_verify(svn_fs_t *fs, const char *path,
svn_revnum_t start,
svn_revnum_t end,
svn_fs_progress_notify_func_t notify_func,
void *notify_baton,
svn_cancel_func_t cancel_func,
void *cancel_baton,
apr_pool_t *pool,
apr_pool_t *common_pool)
{
SVN_ERR(svn_fs__check_fs(fs, FALSE));
SVN_ERR(initialize_fs_struct(fs));
SVN_ERR(svn_fs_fs__open(fs, path, pool));
SVN_ERR(svn_fs_fs__initialize_caches(fs, pool));
SVN_ERR(fs_serialized_init(fs, common_pool, pool));
return svn_fs_fs__verify(fs, start, end, notify_func, notify_baton,
cancel_func, cancel_baton, pool);
}
/* This implements the fs_library_vtable_t.create() API. Create a new
fsfs-backed Subversion filesystem at path PATH and link it into
*FS. Perform temporary allocations in POOL, and fs-global allocations
in COMMON_POOL. The latter must be serialized using COMMON_POOL_LOCK. */
static svn_error_t *
fs_create(svn_fs_t *fs,
const char *path,
svn_mutex__t *common_pool_lock,
apr_pool_t *pool,
apr_pool_t *common_pool)
{
SVN_ERR(svn_fs__check_fs(fs, FALSE));
SVN_ERR(initialize_fs_struct(fs));
SVN_ERR(svn_fs_fs__create(fs, path, pool));
SVN_ERR(svn_fs_fs__initialize_caches(fs, pool));
SVN_MUTEX__WITH_LOCK(common_pool_lock,
fs_serialized_init(fs, common_pool, pool));
return SVN_NO_ERROR;
}
/* This implements the fs_library_vtable_t.hotcopy() API. Copy a
possibly live Subversion filesystem SRC_FS from SRC_PATH to a
DST_FS at DEST_PATH. If INCREMENTAL is TRUE, make an effort not to
re-copy data which already exists in DST_FS.
The CLEAN_LOGS argument is ignored and included for Subversion
1.0.x compatibility. Indicate progress via the optional NOTIFY_FUNC
callback using NOTIFY_BATON. Perform all temporary allocations in POOL. */
static svn_error_t *
fs_hotcopy(svn_fs_t *src_fs,
svn_fs_t *dst_fs,
const char *src_path,
const char *dst_path,
svn_boolean_t clean_logs,
svn_boolean_t incremental,
svn_fs_hotcopy_notify_t notify_func,
void *notify_baton,
svn_cancel_func_t cancel_func,
void *cancel_baton,
svn_mutex__t *common_pool_lock,
apr_pool_t *pool,
apr_pool_t *common_pool)
{
/* Open the source repo as usual. */
SVN_ERR(fs_open(src_fs, src_path, common_pool_lock, pool, common_pool));
if (cancel_func)
SVN_ERR(cancel_func(cancel_baton));
/* Test target repo when in INCREMENTAL mode, initialize it when not.
* For this, we need our FS internal data structures to be temporarily
* available. */
SVN_ERR(initialize_fs_struct(dst_fs));
SVN_ERR(svn_fs_fs__hotcopy_prepare_target(src_fs, dst_fs, dst_path,
incremental, pool));
uninitialize_fs_struct(dst_fs);
/* Now, the destination repo should open just fine. */
SVN_ERR(fs_open(dst_fs, dst_path, common_pool_lock, pool, common_pool));
if (cancel_func)
SVN_ERR(cancel_func(cancel_baton));
/* Now, we may copy data as needed ... */
return svn_fs_fs__hotcopy(src_fs, dst_fs, incremental,
notify_func, notify_baton,
cancel_func, cancel_baton, pool);
}
/* This implements the fs_library_vtable_t.open() API. Open an FSX
Subversion filesystem located at PATH, set *FS to point to the
correct vtable for the filesystem. Use SCRATCH_POOL for any temporary
allocations, and COMMON_POOL for fs-global allocations.
The latter must be serialized using COMMON_POOL_LOCK. */
static svn_error_t *
x_open(svn_fs_t *fs,
const char *path,
svn_mutex__t *common_pool_lock,
apr_pool_t *scratch_pool,
apr_pool_t *common_pool)
{
apr_pool_t *subpool = svn_pool_create(scratch_pool);
SVN_ERR(svn_fs__check_fs(fs, FALSE));
SVN_ERR(initialize_fs_struct(fs));
SVN_ERR(svn_fs_x__open(fs, path, subpool));
SVN_ERR(svn_fs_x__initialize_caches(fs, subpool));
SVN_MUTEX__WITH_LOCK(common_pool_lock,
x_serialized_init(fs, common_pool, subpool));
svn_pool_destroy(subpool);
return SVN_NO_ERROR;
}
