Willy Tarreau 5b9503ed33 MINOR: traces: enumerate the list of levels/verbosities when not found
It's quite frustrating, particularly on the command line, not to have
access to the list of available levels and verbosities when one does
not exist for a given source, because there's no easy way to find them
except by starting without and connecting to the CLI. Let's enumerate
the list of supported levels and verbosities when a name does not match.

For example:

  $ ./haproxy -db -f quic-repro.cfg -dt h2:help
  [NOTICE]   (9602) : haproxy version is 3.0-dev12-60496e-27
  [NOTICE]   (9602) : path to executable is ./haproxy
  [ALERT]    (9602) : -dt: no such trace level 'help', available levels are 'error', 'user', 'proto', 'state', 'data', and 'developer'.

  $ ./haproxy -db -f quic-repro.cfg -dt h2:user:help
  [NOTICE]   (9604) : haproxy version is 3.0-dev12-60496e-27
  [NOTICE]   (9604) : path to executable is ./haproxy
  [ALERT]    (9604) : -dt: no such trace verbosity 'help' for source 'h2', available verbosities for this source are: 'quiet', 'clean', 'minimal', 'simple', 'advanced', and 'complete'.

The same is done for the CLI where the existing help message is always
displayed when entering an invalid verbosity or level.
2024-05-22 11:17:57 +02:00
2021-09-16 09:14:14 +02:00
2024-05-18 16:51:23 +02:00
2024-05-18 16:51:23 +02:00
2024-05-18 16:51:23 +02:00

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)
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