Fix pg_rewind when pg_xlog is a symlink.
pg_xlog is often a symlink, typically to a different filesystem. Don't
get confused and comlain about by that, and just always pretend that it's a
normal directory, even if it's really a symlink.
Also add a test case for this.
Backpatch to 9.5.
Branch
------
REL9_5_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/615b69595525385bbf050a170912b7671cacc5c8
Modified Files
--------------
src/bin/pg_rewind/RewindTest.pm | 14 ++++--
src/bin/pg_rewind/filemap.c | 16 ++++++-
src/bin/pg_rewind/t/001_basic.pl | 1 +
src/bin/pg_rewind/t/002_databases.pl | 1 +
src/bin/pg_rewind/t/003_extrafiles.pl | 1 +
src/bin/pg_rewind/t/004_pg_xlog_symlink.pl | 70 ++++++++++++++++++++++++++++
6 files changed, 98 insertions(+), 5 deletions(-)
