$HeadURL$ $LastChangedRevision$

code
----

Something is wrong the trigger for blocking host deletion when there 
is still an accesss for it:

	[root@spaghetti yum.repos.d]# sqlite3 ~/.paa/paa.sqlite 
	SQLite version 3.6.20
	Enter ".help" for instructions
	Enter SQL statements terminated with a ";"
	sqlite> pragma foreign_keys = on;
	sqlite> update hosts set status = 'deleting' where host == 'spaghetti';
	Error: constraint failed
	sqlite> 

(It should have produced a trigger-based error message, but
this is something else.)

With mirror() calling 'begin transaction' and 'end transaction'
around the mirroring, then it locks out other instances (e.g.
a second manual mirror of a different repo). Without them
an interrupted mirroring leaves the status as 'updating'.
If I use savepoints instead, is that still the case?

Should I block 'paa editrepo X' if X has a mirror (and
a chain of other stuff)?

bs should delete empty .queue directories

docs
----

Update man pages, including for rpmmirror.

DB changes that need documented in the UML diagram:
	path@controls --> file@controls, dir@controls
	extendeds@paacrt_url_prefix --> extendeds@url

Dia has a UML icon for static data (looks like a book with
hinge). Try it for the tables at the bottom of the diagram.

tests
-----

Add a new test that creates repos, mirrors, etc all
the way through to accesses. And then it tries to
remove them out of order. Like:

    DIRECTIVES=( unrepo unmirror ... )
    for ((I=${DIRECTIVES[*]}; I>0; I--)); do
        for ((J=0; J<$I; J++)); do
            paa ${DIRECTIVE[$J]} ...
        done
    done
    
(In the I-th loop, only the paa invocation with I==J
should work. I.e. the *last* highest-level un-whatever
should be possible, but only that one.)

deb
---

Once rpmmirror man page written, then remove the lintian-override
for rpmmirror.1.gz (which is needed because the man page is
currently empty).