On Tue, May 4, 2010 at 11:14, <julianf...@apache.org> wrote:
>...
> +++ subversion/trunk/subversion/libsvn_wc/wc_db.c Tue May 4 15:14:13 2010
> @@ -2560,6 +2560,75 @@ svn_wc__db_pristine_install(svn_wc__db_t
>
>
> 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_pdh_t *pdh;
> + const char *local_relpath;
> + const char *pristine_abspath;
> + svn_error_t *err;
> + const svn_checksum_t *md5_checksum;
> + svn_boolean_t is_referenced = FALSE;
Why initialize this? It will be unconditionally set below.
> +
> + SVN_ERR_ASSERT(svn_dirent_is_absolute(wri_abspath));
> + SVN_ERR_ASSERT(sha1_checksum->kind == svn_checksum_sha1);
> +
> + SVN_ERR(parse_local_abspath(&pdh, &local_relpath, db, wri_abspath,
> + svn_sqlite__mode_readwrite,
> + scratch_pool, scratch_pool));
> + VERIFY_USABLE_PDH(pdh);
> +
> + err = get_pristine_fname(&pristine_abspath, pdh, sha1_checksum,
> +#ifndef SVN__SKIP_SUBDIR
> + TRUE /* create_subdir */,
> +#endif
> + scratch_pool, scratch_pool);
> + SVN_ERR(err);
Why compute the path so early? This won't be needed unless/until you
actually determine the file should be removed.
> +
> + /* Find whether the SHA-1 (or the MD-5) is referenced; set IS_REFERENCED.
> */
> + {
> + svn_sqlite__stmt_t *stmt;
> +
> + /* ### Transitional: look for references to its MD-5 as well. */
> + SVN_ERR(svn_wc__db_pristine_get_md5(&md5_checksum, db, wri_abspath,
> + sha1_checksum, scratch_pool,
> scratch_pool));
> +
> + SVN_ERR(svn_sqlite__get_statement(&stmt, pdh->wcroot->sdb,
> + STMT_SELECT_ANY_PRISTINE_REFERENCE));
> + 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__step(&is_referenced, stmt));
> +
> + SVN_ERR(svn_sqlite__reset(stmt));
> + }
> +
> + /* If not referenced, remove first the PRISTINE table row, then the file.
> */
> + if (! is_referenced)
> + {
> + svn_sqlite__stmt_t *stmt;
> +
> + /* Remove the DB row. */
> + SVN_ERR(svn_sqlite__get_statement(&stmt, pdh->wcroot->sdb,
> + STMT_DELETE_PRISTINE));
> + SVN_ERR(svn_sqlite__bind_checksum(stmt, 1, sha1_checksum,
> scratch_pool));
> + SVN_ERR(svn_sqlite__update(NULL, stmt));
> +
> + /* Remove the file */
> + SVN_ERR(svn_io_remove_file2(pristine_abspath, TRUE, scratch_pool));
> + SVN_DBG(("Was referenced: '%s'\n",
> + svn_checksum_to_cstring_display(md5_checksum, scratch_pool)));
Here...
> + }
> + else
> + SVN_DBG(("Not referenced: '%s'\n",
> + svn_checksum_to_cstring_display(md5_checksum, scratch_pool)));
... and here. SVN_DBG cannot be left in the committed source code. The
macro does not exist in release builds.
>...
> +++ subversion/trunk/subversion/libsvn_wc/wc_db.h Tue May 4 15:14:13 2010
> @@ -866,6 +866,16 @@ svn_wc__db_pristine_get_md5(const svn_ch
> apr_pool_t *scratch_pool);
>
>
> +/* Remove the pristine text with SHA-1 checksum SHA1_CHECKSUM from the
> + * pristine store, iff it is not referenced by any of the (other) WC DB
> + * tables. */
Also remember that we don't want to remove pristines why
administrative locks (WCLOCK) are present. That may signify a commit
is occurring and needed pristines are transiently living in the
pristine storage.
>...
Cheers,
-g
