On 03/06/2012 01:34 AM, Eric Blake wrote:
In the past, we have created some virsh options with less-than-stellar names. For back-compat reasons, those names must continue to parse, but we don't want to document them in help output. This introduces a new option type, an alias, which points to a canonical option name later in the option list. I'm actually quite impressed that our code has already been factored to do all option parsing through common entry points, such that I got this added in relatively few lines of code! * tools/virsh.c (VSH_OT_ALIAS): New option type. (opts_echo): Hook up an alias, for easy testing. (vshCmddefOptParse, vshCmddefHelp, vshCmddefGetOption): Allow for aliases. * tests/virshtest.c (mymain): Test new feature. ---
As a side note: It would be the best with this change to put a warning into the mang page that options that disappeared from the help/man page are not vanished but are obsolete and the user should use the new spellings but we still support the legacy ones.
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