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By default, the contents generated by the custom and directory dump formats are compressed. However, with the existing test facility, the restore program will succeed regardless of whether the dumped output was compressed or not without checking if anything has been compressed. This commit implements a portable way to check the contents of the custom and directory dump formats: - glob_patterns, that can be defined for each test as an array of glob()-compilable strings, tracking the contents that should or should not be compressed. While this is useful to make sure that the table data is compressed, this also checks that blobs.toc and toc.dat are never compressed. - command_like, to execute a command on a dump and check its generated output. This is used here in correlation with pg_restore -l to check if the dumps have been compressed or not, depending on if the build supports gzip, or not. This hole in the tests has come up when working on 5e73a60, where compression has to be applied by default, if available, for both dump formats. The idea of glob_patterns comes from me, and Georgios has come up with the design for command_like. Author: Georgios Kokolatos, Michael Paquier Discussion: https://postgr.es/m/DQn4czCWR1rcbGPLL7p3LfEr5-kGmlySm-H05VgroINdikvhtS5r9EdI6b8D8sjnbKdJ09k-cxs2AqijBeHAWk9Q8gvEAxPRHuLRhwONcGc=@pm.me
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.