julianf...@apache.org wrote on Fri, 24 Aug 2018 10:48 +0000:
> Author: julianfoad
> Date: Fri Aug 24 10:48:37 2018
> New Revision: 1838813
>
> URL: http://svn.apache.org/viewvc?rev=1838813&view=rev
> Log:
> Let 'svnadmin recover' prune the rep-cache even if it is disabled.
>
> Part of issue #4077: "FSFS recover should prune unborn revisions from
> rep-cache.db".
>
> Also add tests for both cases (enabled, disabled).
>
> Pruning the rep-cache even if disabled was included as r1213716 in the
> original fix for issue #4077, first released in Subversion 1.7.3, but was
> reverted in r1367674 (issue #4214, recovery should not create rep-cache.db)
> and so omitted from Subversion 1.8 and later series of releases.
>
> * subversion/libsvn_fs_fs/recovery.c
> (recover_body): Prune the rep-cache no matter whether it's in use.
>
> * subversion/tests/cmdline/svnadmin_tests.py
> (read_rep_cache,
> check_recover_prunes_rep_cache): New functions.
> (recover_prunes_rep_cache_when_enabled,
> recover_prunes_rep_cache_when_disabled): New tests.
> (test_list): Run them.
>
> +++ subversion/trunk/subversion/tests/cmdline/svnadmin_tests.py
> @@ -53,6 +53,23 @@ Wimp = svntest.testcase.Wimp_deco
> SkipDumpLoadCrossCheck = svntest.testcase.SkipDumpLoadCrossCheck_deco
> Item = svntest.wc.StateItem
>
> +def read_rep_cache(repo_dir):
> + """Return the rep-cache contents as a dict {hash: (rev, index, ...)}.
> + """
> + db_path = os.path.join(repo_dir, 'db', 'rep-cache.db')
Should this function assert that db/format <= 8? When we introduce
format 9 it might not be compatible with this function's expectations.
> + db1 = svntest.sqlite3.connect(db_path)
> + schema1 = db1.execute("pragma user_version").fetchone()[0]
> + # Can't test newer rep-cache schemas with an old built-in SQLite.
> + if schema1 >= 2 and svntest.sqlite3.sqlite_version_info < (3, 8, 2):
> + raise svntest.Failure("Can't read rep-cache schema %d using old "
> + "Python-SQLite version %s < (3,8,2)" %
> + (schema1,
> + svntest.sqlite3.sqlite_version_info))
> +
> + content = { row[0]: row[1:] for row in
> + db1.execute("select * from rep_cache") }
> + return content
