/* Transaction implementation of svn_wc__db_pristine_transfer().
We have a lock on DST_WCROOT.
*/
static svn_error_t *
pristine_transfer_txn(svn_wc__db_wcroot_t *src_wcroot,
svn_wc__db_wcroot_t *dst_wcroot,
const char *src_relpath,
svn_cancel_func_t cancel_func,
void *cancel_baton,
apr_pool_t *scratch_pool)
{
svn_sqlite__stmt_t *stmt;
svn_boolean_t got_row;
apr_pool_t *iterpool = svn_pool_create(scratch_pool);
SVN_ERR(svn_sqlite__get_statement(&stmt, src_wcroot->sdb,
STMT_SELECT_COPY_PRISTINES));
SVN_ERR(svn_sqlite__bindf(stmt, "is", src_wcroot->wc_id, src_relpath));
/* This obtains an sqlite read lock on src_wcroot */
SVN_ERR(svn_sqlite__step(&got_row, stmt));
while (got_row)
{
const svn_checksum_t *checksum;
const svn_checksum_t *md5_checksum;
apr_int64_t size;
svn_error_t *err;
svn_pool_clear(iterpool);
SVN_ERR(svn_sqlite__column_checksum(&checksum, stmt, 0, iterpool));
SVN_ERR(svn_sqlite__column_checksum(&md5_checksum, stmt, 1, iterpool));
size = svn_sqlite__column_int64(stmt, 2);
err = maybe_transfer_one_pristine(src_wcroot, dst_wcroot,
checksum, md5_checksum, size,
cancel_func, cancel_baton,
iterpool);
if (err)
return svn_error_trace(svn_error_compose_create(
err,
svn_sqlite__reset(stmt)));
SVN_ERR(svn_sqlite__step(&got_row, stmt));
}
SVN_ERR(svn_sqlite__reset(stmt));
svn_pool_destroy(iterpool);
return SVN_NO_ERROR;
}
/* Remove all unreferenced pristines in the WC DB in WCROOT.
*
* Look for pristine texts whose 'refcount' in the DB is zero, and remove
* them from the 'pristine' table and from disk.
*
* TODO: At least check that any zero refcount is really correct, before
* using it. See dev@ email thread "Pristine text missing - cleanup
* doesn't work", <http://svn.haxx.se/dev/archive-2013-04/0426.shtml>.
*
* TODO: Ideas for possible extra clean-up operations:
*
* * Check and correct all the refcounts. Identify any rows missing
* from the 'pristine' table. (Create a temporary index for speed
* if necessary?)
*
* * Check the checksums. (Very expensive to check them all, so find
* a way to not check them all.)
*
* * Check for pristine files missing from disk but referenced in the
* 'pristine' table.
*
* * Repair any pristine files missing from disk and/or rows missing
* from the 'pristine' table and/or bad checksums. Generally
* requires contacting the server, so requires support at a higher
* level than this function.
*
* * Identify any pristine text files on disk that are not referenced
* in the DB, and delete them.
*
* TODO: Provide feedback about any errors found and any corrections made.
*/
static svn_error_t *
pristine_cleanup_wcroot(svn_wc__db_wcroot_t *wcroot,
apr_pool_t *scratch_pool)
{
svn_sqlite__stmt_t *stmt;
svn_error_t *err = NULL;
apr_pool_t *iterpool = svn_pool_create(scratch_pool);
/* Find each unreferenced pristine in the DB and remove it. */
SVN_ERR(svn_sqlite__get_statement(&stmt, wcroot->sdb,
STMT_SELECT_UNREFERENCED_PRISTINES));
while (! err)
{
svn_boolean_t have_row;
const svn_checksum_t *sha1_checksum;
svn_pool_clear(iterpool);
SVN_ERR(svn_sqlite__step(&have_row, stmt));
if (! have_row)
break;
SVN_ERR(svn_sqlite__column_checksum(&sha1_checksum, stmt, 0,
iterpool));
err = pristine_remove_if_unreferenced(wcroot, sha1_checksum,
iterpool);
}
svn_pool_destroy(iterpool);
return svn_error_trace(
svn_error_compose_create(err, svn_sqlite__reset(stmt)));
}
/* This function's caller ignores most errors it returns.
If you extend this function, check the callsite to see if you have
to make it not-ignore additional error codes. */
svn_error_t *
svn_fs_fs__get_rep_reference(representation_t **rep,
svn_fs_t *fs,
svn_checksum_t *checksum,
apr_pool_t *pool)
{
fs_fs_data_t *ffd = fs->fsap_data;
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
SVN_ERR_ASSERT(ffd->rep_sharing_allowed);
if (! ffd->rep_cache_db)
SVN_ERR(svn_fs_fs__open_rep_cache(fs, pool));
/* We only allow SHA1 checksums in this table. */
if (checksum->kind != svn_checksum_sha1)
return svn_error_create(SVN_ERR_BAD_CHECKSUM_KIND, NULL,
_("Only SHA1 checksums can be used as keys in the "
"rep_cache table.\n"));
SVN_ERR(svn_sqlite__get_statement(&stmt, ffd->rep_cache_db, STMT_GET_REP));
SVN_ERR(svn_sqlite__bindf(stmt, "s",
svn_checksum_to_cstring(checksum, pool)));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
if (have_row)
{
*rep = apr_pcalloc(pool, sizeof(**rep));
svn_fs_fs__id_txn_reset(&(*rep)->txn_id);
memcpy((*rep)->sha1_digest, checksum->digest,
sizeof((*rep)->sha1_digest));
(*rep)->has_sha1 = TRUE;
(*rep)->revision = svn_sqlite__column_revnum(stmt, 0);
(*rep)->item_index = svn_sqlite__column_int64(stmt, 1);
(*rep)->size = svn_sqlite__column_int64(stmt, 2);
(*rep)->expanded_size = svn_sqlite__column_int64(stmt, 3);
}
else
*rep = NULL;
SVN_ERR(svn_sqlite__reset(stmt));
if (*rep)
{
/* Check that REP refers to a revision that exists in FS. */
svn_error_t *err = svn_fs_fs__ensure_revision_exists((*rep)->revision,
fs, pool);
if (err)
return svn_error_createf(SVN_ERR_FS_CORRUPT, err,
"Checksum '%s' in rep-cache is beyond HEAD",
svn_checksum_to_cstring_display(checksum,
pool));
}
return SVN_NO_ERROR;
}
svn_error_t *
svn_sqlite__update(int *affected_rows, svn_sqlite__stmt_t *stmt)
{
SVN_ERR(step_with_expectation(stmt, FALSE));
if (affected_rows)
*affected_rows = sqlite3_changes(stmt->db->db3);
return svn_error_trace(svn_sqlite__reset(stmt));
}
/* APR cleanup function used to close the database when its pool is destroyed.
DATA should be the svn_sqlite__db_t handle for the database. */
static apr_status_t
close_apr(void *data)
{
svn_sqlite__db_t *db = data;
svn_error_t *err = SVN_NO_ERROR;
apr_status_t result;
int i;
/* Check to see if we've already closed this database. */
if (db->db3 == NULL)
return APR_SUCCESS;
/* Finalize any prepared statements. */
if (db->prepared_stmts)
{
for (i = 0; i < db->nbr_statements + STMT_INTERNAL_LAST; i++)
{
if (db->prepared_stmts[i])
{
if (i < db->nbr_statements
&& db->prepared_stmts[i]->needs_reset)
{
#ifdef SVN_DEBUG
const char *stmt_text = db->statement_strings[i];
SVN_UNUSED(stmt_text);
SVN_ERR_MALFUNCTION_NO_RETURN();
#else
err = svn_error_compose_create(err,
svn_sqlite__reset(db->prepared_stmts[i]));
#endif
}
err = svn_error_compose_create(
svn_sqlite__finalize(db->prepared_stmts[i]), err);
}
}
}
result = sqlite3_close(db->db3);
/* If there's a pre-existing error, return it. */
if (err)
{
result = err->apr_err;
svn_error_clear(err);
return result;
}
if (result != SQLITE_OK)
return SQLITE_ERROR_CODE(result); /* ### lossy */
db->db3 = NULL;
return APR_SUCCESS;
}
svn_error_t *
svn_sqlite__insert(apr_int64_t *row_id, svn_sqlite__stmt_t *stmt)
{
svn_boolean_t got_row;
SVN_ERR(svn_sqlite__step(&got_row, stmt));
if (row_id)
*row_id = sqlite3_last_insert_rowid(stmt->db->db3);
return svn_error_trace(svn_sqlite__reset(stmt));
}
svn_error_t *
svn_wc__db_util_fetch_wc_id(apr_int64_t *wc_id,
svn_sqlite__db_t *sdb,
apr_pool_t *scratch_pool)
{
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
/* ### cheat. we know there is just one WORKING_COPY row, and it has a
### NULL value for local_abspath. */
SVN_ERR(svn_sqlite__get_statement(&stmt, sdb, STMT_SELECT_WCROOT_NULL));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
if (!have_row)
return svn_error_createf(SVN_ERR_WC_CORRUPT, svn_sqlite__reset(stmt),
_("Missing a row in WCROOT."));
SVN_ERR_ASSERT(!svn_sqlite__column_is_null(stmt, 0));
*wc_id = svn_sqlite__column_int64(stmt, 0);
return svn_error_trace(svn_sqlite__reset(stmt));
}
svn_error_t *
svn_wc__db_pristine_get_sha1(const svn_checksum_t **sha1_checksum,
svn_wc__db_t *db,
const char *wri_abspath,
const svn_checksum_t *md5_checksum,
apr_pool_t *result_pool,
apr_pool_t *scratch_pool)
{
svn_wc__db_wcroot_t *wcroot;
const char *local_relpath;
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
SVN_ERR_ASSERT(svn_dirent_is_absolute(wri_abspath));
SVN_ERR_ASSERT(sha1_checksum != NULL);
SVN_ERR_ASSERT(md5_checksum->kind == svn_checksum_md5);
SVN_ERR(svn_wc__db_wcroot_parse_local_abspath(&wcroot, &local_relpath, db,
wri_abspath, scratch_pool, scratch_pool));
VERIFY_USABLE_WCROOT(wcroot);
SVN_ERR(svn_sqlite__get_statement(&stmt, wcroot->sdb,
STMT_SELECT_PRISTINE_BY_MD5));
SVN_ERR(svn_sqlite__bind_checksum(stmt, 1, md5_checksum, scratch_pool));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
if (!have_row)
return svn_error_createf(SVN_ERR_WC_DB_ERROR, svn_sqlite__reset(stmt),
_("The pristine text with MD5 checksum '%s' was "
"not found"),
svn_checksum_to_cstring_display(md5_checksum,
scratch_pool));
SVN_ERR(svn_sqlite__column_checksum(sha1_checksum, stmt, 0, result_pool));
SVN_ERR_ASSERT((*sha1_checksum)->kind == svn_checksum_sha1);
return svn_error_trace(svn_sqlite__reset(stmt));
}
/* Set *CONTENTS to a readable stream from which the pristine text
* identified by SHA1_CHECKSUM and PRISTINE_ABSPATH can be read from the
* pristine store of WCROOT. If SIZE is not null, set *SIZE to the size
* in bytes of that text. If that text is not in the pristine store,
* return an error.
*
* Even if the pristine text is removed from the store while it is being
* read, the stream will remain valid and readable until it is closed.
*
* Allocate the stream in RESULT_POOL.
*
* This function expects to be executed inside a SQLite txn.
*
* Implements 'notes/wc-ng/pristine-store' section A-3(d).
*/
static svn_error_t *
pristine_read_txn(svn_stream_t **contents,
svn_filesize_t *size,
svn_wc__db_wcroot_t *wcroot,
const svn_checksum_t *sha1_checksum,
const char *pristine_abspath,
apr_pool_t *result_pool,
apr_pool_t *scratch_pool)
{
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
/* Check that this pristine text is present in the store. (The presence
* of the file is not sufficient.) */
SVN_ERR(svn_sqlite__get_statement(&stmt, wcroot->sdb,
STMT_SELECT_PRISTINE_SIZE));
SVN_ERR(svn_sqlite__bind_checksum(stmt, 1, sha1_checksum, scratch_pool));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
if (size)
*size = svn_sqlite__column_int64(stmt, 0);
SVN_ERR(svn_sqlite__reset(stmt));
if (! have_row)
{
return svn_error_createf(SVN_ERR_WC_PATH_NOT_FOUND, NULL,
_("Pristine text '%s' not present"),
svn_checksum_to_cstring_display(
sha1_checksum, scratch_pool));
}
/* Open the file as a readable stream. It will remain readable even when
* deleted from disk; APR guarantees that on Windows as well as Unix.
*
* We also don't enable APR_BUFFERED on this file to maximize throughput
* e.g. for fulltext comparison. As we use SVN__STREAM_CHUNK_SIZE buffers
* where needed in streams, there is no point in having another layer of
* buffers. */
if (contents)
{
apr_file_t *file;
SVN_ERR(svn_io_file_open(&file, pristine_abspath, APR_READ,
APR_OS_DEFAULT, result_pool));
*contents = svn_stream_from_aprfile2(file, FALSE, result_pool);
}
return SVN_NO_ERROR;
}
svn_error_t *
svn_wc__db_verify_no_work(svn_sqlite__db_t *sdb)
{
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
SVN_ERR(svn_sqlite__get_statement(&stmt, sdb, STMT_LOOK_FOR_WORK));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
SVN_ERR(svn_sqlite__reset(stmt));
if (have_row)
return svn_error_create(SVN_ERR_WC_CLEANUP_REQUIRED, NULL,
NULL /* nothing to add. */);
return SVN_NO_ERROR;
}
static svn_error_t *
step_with_expectation(svn_sqlite__stmt_t* stmt,
svn_boolean_t expecting_row)
{
svn_boolean_t got_row;
SVN_ERR(svn_sqlite__step(&got_row, stmt));
if ((got_row && !expecting_row)
||
(!got_row && expecting_row))
return svn_error_create(SVN_ERR_SQLITE_ERROR,
svn_sqlite__reset(stmt),
expecting_row
? _("Expected database row missing")
: _("Extra database row found"));
return SVN_NO_ERROR;
}
svn_error_t *
svn_sqlite__get_statement(svn_sqlite__stmt_t **stmt, svn_sqlite__db_t *db,
int stmt_idx)
{
SVN_ERR_ASSERT(stmt_idx < db->nbr_statements);
if (db->prepared_stmts[stmt_idx] == NULL)
SVN_ERR(prepare_statement(&db->prepared_stmts[stmt_idx], db,
db->statement_strings[stmt_idx],
db->state_pool));
*stmt = db->prepared_stmts[stmt_idx];
if ((*stmt)->needs_reset)
return svn_error_trace(svn_sqlite__reset(*stmt));
return SVN_NO_ERROR;
}
svn_error_t *
svn_sqlite__step(svn_boolean_t *got_row, svn_sqlite__stmt_t *stmt)
{
int sqlite_result = sqlite3_step(stmt->s3stmt);
if (sqlite_result != SQLITE_DONE && sqlite_result != SQLITE_ROW)
{
svn_error_t *err1, *err2;
err1 = svn_error_create(SQLITE_ERROR_CODE(sqlite_result), NULL,
sqlite3_errmsg(stmt->db->db3));
err2 = svn_sqlite__reset(stmt);
return svn_error_compose_create(err1, err2);
}
*got_row = (sqlite_result == SQLITE_ROW);
return SVN_NO_ERROR;
}
svn_error_t *
svn_wc__db_pristine_remove(svn_wc__db_t *db,
const char *wri_abspath,
const svn_checksum_t *sha1_checksum,
apr_pool_t *scratch_pool)
{
svn_wc__db_wcroot_t *wcroot;
const char *local_relpath;
SVN_ERR_ASSERT(svn_dirent_is_absolute(wri_abspath));
SVN_ERR_ASSERT(sha1_checksum != NULL);
/* ### Transitional: accept MD-5 and look up the SHA-1. Return an error
* if the pristine text is not in the store. */
if (sha1_checksum->kind != svn_checksum_sha1)
SVN_ERR(svn_wc__db_pristine_get_sha1(&sha1_checksum, db, wri_abspath,
sha1_checksum,
scratch_pool, scratch_pool));
SVN_ERR_ASSERT(sha1_checksum->kind == svn_checksum_sha1);
SVN_ERR(svn_wc__db_wcroot_parse_local_abspath(&wcroot, &local_relpath, db,
wri_abspath, scratch_pool, scratch_pool));
VERIFY_USABLE_WCROOT(wcroot);
/* If the work queue is not empty, don't delete any pristine text because
* the work queue may contain a reference to it. */
{
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
SVN_ERR(svn_sqlite__get_statement(&stmt, wcroot->sdb, STMT_LOOK_FOR_WORK));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
SVN_ERR(svn_sqlite__reset(stmt));
if (have_row)
return SVN_NO_ERROR;
}
/* If not referenced, remove the PRISTINE table row and the file. */
SVN_ERR(pristine_remove_if_unreferenced(wcroot, sha1_checksum, scratch_pool));
return SVN_NO_ERROR;
}
/* This function's caller ignores most errors it returns.
If you extend this function, check the callsite to see if you have
to make it not-ignore additional error codes. */
svn_error_t *
svn_fs_fs__get_rep_reference(representation_t **rep,
svn_fs_t *fs,
svn_checksum_t *checksum,
apr_pool_t *pool)
{
fs_fs_data_t *ffd = fs->fsap_data;
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
SVN_ERR_ASSERT(ffd->rep_sharing_allowed);
if (! ffd->rep_cache_db)
SVN_ERR(svn_fs_fs__open_rep_cache(fs, pool));
/* We only allow SHA1 checksums in this table. */
if (checksum->kind != svn_checksum_sha1)
return svn_error_create(SVN_ERR_BAD_CHECKSUM_KIND, NULL,
_("Only SHA1 checksums can be used as keys in the "
"rep_cache table.\n"));
SVN_ERR(svn_sqlite__get_statement(&stmt, ffd->rep_cache_db, STMT_GET_REP));
SVN_ERR(svn_sqlite__bindf(stmt, "s",
svn_checksum_to_cstring(checksum, pool)));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
if (have_row)
{
*rep = apr_pcalloc(pool, sizeof(**rep));
(*rep)->sha1_checksum = svn_checksum_dup(checksum, pool);
(*rep)->revision = svn_sqlite__column_revnum(stmt, 0);
(*rep)->offset = svn_sqlite__column_int64(stmt, 1);
(*rep)->size = svn_sqlite__column_int64(stmt, 2);
(*rep)->expanded_size = svn_sqlite__column_int64(stmt, 3);
}
else
*rep = NULL;
if (*rep)
SVN_ERR(rep_has_been_born(*rep, fs, pool));
return svn_sqlite__reset(stmt);
}
static svn_error_t *
reset_all_statements(svn_sqlite__db_t *db,
svn_error_t *error_to_wrap)
{
int i;
svn_error_t *err;
/* ### Should we reorder the errors in this specific case
### to avoid returning the normal error as top level error? */
err = svn_error_compose_create(error_to_wrap,
svn_error_create(SVN_ERR_SQLITE_RESETTING_FOR_ROLLBACK,
NULL, NULL));
for (i = 0; i < db->nbr_statements; i++)
if (db->prepared_stmts[i] && db->prepared_stmts[i]->needs_reset)
err = svn_error_compose_create(err,
svn_sqlite__reset(db->prepared_stmts[i]));
return err;
}
/* Verify if the sqlite_stat1 table exists and if not tries to add
this table (but ignores errors on adding the schema) */
static svn_error_t *
verify_stats_table(svn_sqlite__db_t *sdb,
int format,
apr_pool_t *scratch_pool)
{
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
if (format != SVN_WC__ENSURE_STAT1_TABLE)
return SVN_NO_ERROR;
SVN_ERR(svn_sqlite__get_statement(&stmt, sdb,
STMT_HAVE_STAT1_TABLE));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
SVN_ERR(svn_sqlite__reset(stmt));
if (!have_row)
{
svn_error_clear(
svn_wc__db_install_schema_statistics(sdb, scratch_pool));
}
return SVN_NO_ERROR;
}
svn_error_t *
svn_fs_fs__walk_rep_reference(svn_fs_t *fs,
svn_revnum_t start,
svn_revnum_t end,
svn_error_t *(*walker)(representation_t *,
void *,
svn_fs_t *,
apr_pool_t *),
void *walker_baton,
svn_cancel_func_t cancel_func,
void *cancel_baton,
apr_pool_t *pool)
{
fs_fs_data_t *ffd = fs->fsap_data;
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
int iterations = 0;
apr_pool_t *iterpool = svn_pool_create(pool);
/* Don't check ffd->rep_sharing_allowed. */
SVN_ERR_ASSERT(ffd->format >= SVN_FS_FS__MIN_REP_SHARING_FORMAT);
if (! ffd->rep_cache_db)
SVN_ERR(svn_fs_fs__open_rep_cache(fs, pool));
/* Check global invariants. */
if (start == 0)
{
svn_revnum_t max;
SVN_ERR(svn_sqlite__get_statement(&stmt, ffd->rep_cache_db,
STMT_GET_MAX_REV));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
max = svn_sqlite__column_revnum(stmt, 0);
SVN_ERR(svn_sqlite__reset(stmt));
if (SVN_IS_VALID_REVNUM(max)) /* The rep-cache could be empty. */
SVN_ERR(svn_fs_fs__ensure_revision_exists(max, fs, iterpool));
}
SVN_ERR(svn_sqlite__get_statement(&stmt, ffd->rep_cache_db,
STMT_GET_REPS_FOR_RANGE));
SVN_ERR(svn_sqlite__bindf(stmt, "rr",
start, end));
/* Walk the cache entries. */
SVN_ERR(svn_sqlite__step(&have_row, stmt));
while (have_row)
{
representation_t *rep;
const char *sha1_digest;
svn_error_t *err;
svn_checksum_t *checksum;
/* Clear ITERPOOL occasionally. */
if (iterations++ % 16 == 0)
svn_pool_clear(iterpool);
/* Check for cancellation. */
if (cancel_func)
{
err = cancel_func(cancel_baton);
if (err)
return svn_error_compose_create(err, svn_sqlite__reset(stmt));
}
/* Construct a representation_t. */
rep = apr_pcalloc(iterpool, sizeof(*rep));
svn_fs_fs__id_txn_reset(&rep->txn_id);
sha1_digest = svn_sqlite__column_text(stmt, 0, iterpool);
err = svn_checksum_parse_hex(&checksum, svn_checksum_sha1,
sha1_digest, iterpool);
if (err)
return svn_error_compose_create(err, svn_sqlite__reset(stmt));
rep->has_sha1 = TRUE;
memcpy(rep->sha1_digest, checksum->digest, sizeof(rep->sha1_digest));
rep->revision = svn_sqlite__column_revnum(stmt, 1);
rep->item_index = svn_sqlite__column_int64(stmt, 2);
rep->size = svn_sqlite__column_int64(stmt, 3);
rep->expanded_size = svn_sqlite__column_int64(stmt, 4);
/* Walk. */
err = walker(rep, walker_baton, fs, iterpool);
if (err)
return svn_error_compose_create(err, svn_sqlite__reset(stmt));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
}
SVN_ERR(svn_sqlite__reset(stmt));
svn_pool_destroy(iterpool);
return SVN_NO_ERROR;
}
svn_error_t *
svn_fs_fs__walk_rep_reference(svn_fs_t *fs,
svn_error_t *(*walker)(representation_t *,
void *,
svn_fs_t *,
apr_pool_t *),
void *walker_baton,
svn_cancel_func_t cancel_func,
void *cancel_baton,
apr_pool_t *pool)
{
fs_fs_data_t *ffd = fs->fsap_data;
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
int iterations = 0;
apr_pool_t *iterpool = svn_pool_create(pool);
/* Don't check ffd->rep_sharing_allowed. */
SVN_ERR_ASSERT(ffd->format >= SVN_FS_FS__MIN_REP_SHARING_FORMAT);
if (! ffd->rep_cache_db)
SVN_ERR(svn_fs_fs__open_rep_cache(fs, pool));
/* Get the statement. (There are no arguments to bind.) */
SVN_ERR(svn_sqlite__get_statement(&stmt, ffd->rep_cache_db,
STMT_GET_ALL_REPS));
/* Walk the cache entries. */
SVN_ERR(svn_sqlite__step(&have_row, stmt));
while (have_row)
{
representation_t *rep;
const char *sha1_digest;
/* Clear ITERPOOL occasionally. */
if (iterations++ % 16 == 0)
svn_pool_clear(iterpool);
/* Check for cancellation. */
if (cancel_func)
SVN_ERR(cancel_func(cancel_baton));
/* Construct a representation_t. */
rep = apr_pcalloc(iterpool, sizeof(*rep));
sha1_digest = svn_sqlite__column_text(stmt, 0, iterpool);
SVN_ERR(svn_checksum_parse_hex(&rep->sha1_checksum,
svn_checksum_sha1, sha1_digest,
iterpool));
rep->revision = svn_sqlite__column_revnum(stmt, 1);
rep->offset = svn_sqlite__column_int64(stmt, 2);
rep->size = svn_sqlite__column_int64(stmt, 3);
rep->expanded_size = svn_sqlite__column_int64(stmt, 4);
/* Sanity check. */
if (rep)
SVN_ERR(rep_has_been_born(rep, fs, iterpool));
/* Walk. */
SVN_ERR(walker(rep, walker_baton, fs, iterpool));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
}
SVN_ERR(svn_sqlite__reset(stmt));
svn_pool_destroy(iterpool);
return SVN_NO_ERROR;
}
/* Install the pristine text described by BATON into the pristine store of
* SDB. If it is already stored then just delete the new file
* BATON->tempfile_abspath.
*
* This function expects to be executed inside a SQLite txn that has already
* acquired a 'RESERVED' lock.
*
* Implements 'notes/wc-ng/pristine-store' section A-3(a).
*/
static svn_error_t *
pristine_install_txn(svn_sqlite__db_t *sdb,
/* The path to the source file that is to be moved into place. */
svn_stream_t *install_stream,
/* The target path for the file (within the pristine store). */
const char *pristine_abspath,
/* The pristine text's SHA-1 checksum. */
const svn_checksum_t *sha1_checksum,
/* The pristine text's MD-5 checksum. */
const svn_checksum_t *md5_checksum,
apr_pool_t *scratch_pool)
{
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
/* If this pristine text is already present in the store, just keep it:
* delete the new one and return. */
SVN_ERR(svn_sqlite__get_statement(&stmt, sdb, STMT_SELECT_PRISTINE));
SVN_ERR(svn_sqlite__bind_checksum(stmt, 1, sha1_checksum, scratch_pool));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
SVN_ERR(svn_sqlite__reset(stmt));
if (have_row)
{
#ifdef SVN_DEBUG
/* Consistency checks. Verify both files exist and match.
* ### We could check much more. */
{
apr_finfo_t finfo1, finfo2;
SVN_ERR(svn_stream__install_get_info(&finfo1, install_stream, APR_FINFO_SIZE,
scratch_pool));
SVN_ERR(svn_io_stat(&finfo2, pristine_abspath, APR_FINFO_SIZE,
scratch_pool));
if (finfo1.size != finfo2.size)
{
return svn_error_createf(
SVN_ERR_WC_CORRUPT_TEXT_BASE, NULL,
_("New pristine text '%s' has different size: %s versus %s"),
svn_checksum_to_cstring_display(sha1_checksum, scratch_pool),
apr_off_t_toa(scratch_pool, finfo1.size),
apr_off_t_toa(scratch_pool, finfo2.size));
}
}
#endif
/* Remove the temp file: it's already there */
SVN_ERR(svn_stream__install_delete(install_stream, scratch_pool));
return SVN_NO_ERROR;
}
/* Move the file to its target location. (If it is already there, it is
* an orphan file and it doesn't matter if we overwrite it.) */
{
apr_finfo_t finfo;
SVN_ERR(svn_stream__install_get_info(&finfo, install_stream,
APR_FINFO_SIZE, scratch_pool));
SVN_ERR(svn_stream__install_stream(install_stream, pristine_abspath,
TRUE, scratch_pool));
SVN_ERR(svn_sqlite__get_statement(&stmt, sdb, STMT_INSERT_PRISTINE));
SVN_ERR(svn_sqlite__bind_checksum(stmt, 1, sha1_checksum, scratch_pool));
SVN_ERR(svn_sqlite__bind_checksum(stmt, 2, md5_checksum, scratch_pool));
SVN_ERR(svn_sqlite__bind_int64(stmt, 3, finfo.size));
SVN_ERR(svn_sqlite__insert(NULL, stmt));
SVN_ERR(svn_io_set_file_read_only(pristine_abspath, FALSE, scratch_pool));
}
return SVN_NO_ERROR;
}
svn_error_t *
svn_wc__db_pristine_check(svn_boolean_t *present,
svn_wc__db_t *db,
const char *wri_abspath,
const svn_checksum_t *sha1_checksum,
apr_pool_t *scratch_pool)
{
svn_wc__db_wcroot_t *wcroot;
const char *local_relpath;
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
SVN_ERR_ASSERT(svn_dirent_is_absolute(wri_abspath));
SVN_ERR_ASSERT(sha1_checksum != NULL);
if (sha1_checksum->kind != svn_checksum_sha1)
{
*present = FALSE;
return SVN_NO_ERROR;
}
SVN_ERR(svn_wc__db_wcroot_parse_local_abspath(&wcroot, &local_relpath, db,
wri_abspath, scratch_pool, scratch_pool));
VERIFY_USABLE_WCROOT(wcroot);
/* A filestat is much cheaper than a sqlite transaction especially on NFS,
so first check if there is a pristine file and then if we are allowed
to use it. */
{
const char *pristine_abspath;
svn_node_kind_t kind_on_disk;
svn_error_t *err;
SVN_ERR(get_pristine_fname(&pristine_abspath, wcroot->abspath,
sha1_checksum, scratch_pool, scratch_pool));
err = svn_io_check_path(pristine_abspath, &kind_on_disk, scratch_pool);
#ifdef WIN32
if (err && err->apr_err == APR_FROM_OS_ERROR(ERROR_ACCESS_DENIED))
{
svn_error_clear(err);
/* Possible race condition: The filename is locked, but there is no
file or dir with this name. Let's fall back on checking the DB.
This case is triggered by the pristine store tests on deleting
a file that is still open via another handle, where this other
handle has a FILE_SHARE_DELETE share mode.
*/
}
else
#endif
if (err)
return svn_error_trace(err);
else if (kind_on_disk != svn_node_file)
{
*present = FALSE;
return SVN_NO_ERROR;
}
}
/* Check that there is an entry in the PRISTINE table. */
SVN_ERR(svn_sqlite__get_statement(&stmt, wcroot->sdb, STMT_SELECT_PRISTINE));
SVN_ERR(svn_sqlite__bind_checksum(stmt, 1, sha1_checksum, scratch_pool));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
SVN_ERR(svn_sqlite__reset(stmt));
*present = have_row;
return SVN_NO_ERROR;
}
svn_error_t *
svn_sqlite__step_done(svn_sqlite__stmt_t *stmt)
{
SVN_ERR(step_with_expectation(stmt, FALSE));
return svn_error_trace(svn_sqlite__reset(stmt));
}
