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Very often, especially since reg-tests, it would be desirable to be able to conditionally comment out a config block, such as removing an SSL binding when SSL is disabled, or enabling HTX only for certain versions, etc. This patch introduces a very simple nested block management which takes ".if", ".elif", ".else" and ".endif" directives to take or ignore a block. For now the conditions are limited to empty string or "0" for false versus a non-nul integer for true, which already suffices to test environment variables. Still, it needs to be a bit more advanced with defines, versions etc. A set of ".notice", ".warning" and ".alert" statements are provided to emit messages, often in order to provide advice about how to fix certain conditions.
The HAProxy documentation has been split into a number of different files for ease of use. Please refer to the following files depending on what you're looking for : - INSTALL for instructions on how to build and install HAProxy - BRANCHES to understand the project's life cycle and what version to use - LICENSE for the project's license - CONTRIBUTING for the process to follow to submit contributions The more detailed documentation is located into the doc/ directory : - doc/intro.txt for a quick introduction on HAProxy - doc/configuration.txt for the configuration's reference manual - doc/lua.txt for the Lua's reference manual - doc/SPOE.txt for how to use the SPOE engine - doc/network-namespaces.txt for how to use network namespaces under Linux - doc/management.txt for the management guide - doc/regression-testing.txt for how to use the regression testing suite - doc/peers.txt for the peers protocol reference - doc/coding-style.txt for how to adopt HAProxy's coding style - doc/internals for developer-specific documentation (not all up to date)