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cirrus-ci will soon restrict the amount of free resources every user gets (as have many other CI providers). For most users of CI that should not be an issue. But e.g. for cfbot it will be an issue. To allow configuring different resources on a per-repository basis, introduce infrastructure for overriding the task execution environment. Unfortunately this is not entirely trivial, as yaml anchors have to be defined before their use, and cirrus-ci only allows injecting additional contents at the end of .cirrus.yml. To deal with that, move the definition of the CI tasks to .cirrus.tasks.yml. The main .cirrus.yml is loaded first, then, if defined, the file referenced by the REPO_CI_CONFIG_GIT_URL variable, will be added, followed by the contents of .cirrus.tasks.yml. That allows REPO_CI_CONFIG_GIT_URL to override the yaml anchors defined in .cirrus.yml. Unfortunately git's default merge / rebase strategy does not handle copied files, just renamed ones. To avoid painful rebasing over this change, this commit just renames .cirrus.yml to .cirrus.tasks.yml, without adding a new .cirrus.yml. That's done in the followup commit, which moves the relevant portion of .cirrus.tasks.yml to .cirrus.yml. Until that is done, REPO_CI_CONFIG_GIT_URL does not fully work. The subsequent commit adds documentation for how to configure custom compute resources to src/tools/ci/README Reviewed-by: Daniel Gustafsson <daniel@yesql.se> Reviewed-by: Nazir Bilal Yavuz <byavuz81@gmail.com> Discussion: https://postgr.es/m/20230808021541.7lbzdefvma7qmn3w@awork3.anarazel.de Backpatch: 15-, where CI support was added
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/.