[Gnu-arch-users] tla rescue-tree

[Tez Kamihira]

Suppose there are two machines on the network, named S and C.
S is an archive server that has a development branch named
a--b--1.0 and its latest revision is patch-2. Client machine
named C checked out this revision over the network used by
"tla getrev" instead of "tla tag -S", because my first intent
was just taking a look at the revision and didn't have any
serious reasons.


     a--b--1.0 on S                              C (me)

        base-0
           v
        patch-1
           v           "tla getrev"
        patch-2  ---------------------->  project tree of
                                         a--b--1.0--patch-2.
           v
       (patch-3)
           v
       (patch-4)


After a while, I changed my mind. Something hit me. Now
I want to get "tla tag" of the a--b--1.0--patch-2. But
unfortunately, S is down now or something is wrong with the
network itself or simply C is my laptop and I'm playing in
the train.

What shall I do ?  I follow the below steps. It works fine.

    1.) "tla undo" in my working copy(= project tree) to save
        the last modified changeset to some safety area.

    2.) make newly temporaly archive named "a--b-temp--1.0" in
        _my_ machine (= C) by "tla archive-setup a--b-temp--1.0".

    3.) "tla set-tree-version a--b-temp--1.0"

    4.) mkdir -p {arch}/a/a--b-temp/a--b-temp--1.0/address@hidden/patch-log

    5.) tla import

    6.) tla redo

    7.) tla commit -L"you can't be more helpful."

Network is reachable again. Now I can do

    8.) tla update a--b--1.0

or

    8'.) tla star-merge a--b--1.0 .

to get "a--b--1.0--patch-3" and "patch-4".

Everything works fine. "a--b-temp--1.0" behaves as if it's
a tag version of "a--b--1.0", even if it doesn't have a proper
"CONTINUATION" information in it.

The only annoying step is "4.)", because in that operation I
assume specific directory formation in "{arch}" directory.

To avoid this operation, there maybe three solutions:

    a.) Let "tla set-tree-version" include "mkdir -p ..."
        operation. or add some option to do it.

    b.) Make a new command to do it more abstractly.

    c.) Make a more macro command named "tla rescue-tree",
        which does from "1.)" to "5.)" steps.


or already has a stuff for it ?



        - Tez