Re: [RFC]rev-parse: rev-parse.h does not exist for rev-parse.c

Shourya Shukla [off-list ref] writes:

using 'argv_array_pushl()', I thought maybe I could call 'rev-parse.h'
and use the 'cmd_rev_parse()' function directly.

Never call cmd_foo() from within your program for any value of
foo(), as it is not part of the approved API.  cmd_foo() is meant to
be the entry point of "run once and exit" function, it is not just
allowed but is expected to exit, and it also will do the in-core
repository setup etc.