Re: Automate source code backup to SVN

Very cool idea!

This program does the more heavy work such as determining the beginning

and
end of one save. For example by analyzing the timestamp that the
triggerprogram adds to each record it puts in the dataqueue in combination
with the sequence number of each record.

I wonder if SVN could be doing more of the heavy work on this. Don't
bother
trying to figure out if it changed, just submit it to SVN and it will do
the
figuring. I would make sure to strip off the sequence and date area so
that
didn't alter the source file comparison in SVN. For example, if somebody
resequences the member then SVN will show that ALL lines of code changed -
ouch.

After the trigger executes I would have it immediately make a copy of the
source file out to a temp area in the IFS so an exact image was saved that
could be sync'd back to SVN. This protects against the programmer making
another change before the syncing process is complete (i.e. network
connection might be down, SVN server might be down, connection might be
slow, etc).

Oh man, now I have to convince myself NOT to try and code this before I
get
my other projects out of the way. This would be such a cool project -
maybe
my next open source tool! :-)

The best part is that the SVN tooling comes with a web browser "view diff"
right out of the box (at least the one we use does). So your programmers
wouldn't even have to load the WDSC/Eclipse SVN plugin if they were
strictly
a PDM/SEU type programmer.

Fun fun!
Aaron Bartell
http://mowyourlawn.com


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of john e
Sent: Wednesday, November 28, 2007 9:04 AM
To: Midrange Systems Technical Discussion
Subject: RE: Automate source code backup to SVN


Hi Aaron,

FYI,

Some time ago i was also thinking about how to use CVS (or SVN) and couple
it with the sourcefiles on the as/400. But instead of syncing every night
i
would like to save each version into CVS, thus each time somebody on our
team saves a member it is automatically saves into the repository. This
way
you have a history of each saved snapshot of a source. So that you can
compare the current one with the one of yesterdam at 4pm for example.
Having
this set up it is easy to install for example a PHP app to provide a neat
user interface to the repository from which every teammember could look up
a
snapshot, analyze the changes that were made to a specific sourcemember.

I though of a way to do implement this in a robust way such that each time
a
member is saved, no matter from which tool, being PDM or WDSCi, the
snapshot
is saved in the repository.

The basic idea is then to add a trigger to a sourcefile which would be
executed whenever a record to the sourcemember is added. When saving from
SEU or WDSCi the member is first cleared and then all records are added.
This can be captured with a trigger program.

This trigger program does not much except that it puts the added records
into a dataqueue which is read by a program running in batch. This program
does the more heavy work such as determining the beginning and end of one
save. For example by analyzing the timestamp that the triggerprogram adds
to
each record it puts in the dataqueue in combination with the sequence
number
of each record.

The program reading the dataqueue then communicates with CVS, for example
by
calling a script in the PASE environment to save a source into the
repository.

It's not trivial, but it's no rocket science either.

Jacobus

From: albartell@xxxxxxxxx
To: midrange-l@xxxxxxxxxxxx
Subject: Automate source code backup to SVN
Date: Wed, 28 Nov 2007 08:18:24 -0600

Hi all,



I have been playing around with using SVN to change manage my RPG code.

I

have installed SVN on the i5 but decided not to go that route once I

found

that SVN on the i5 has a good chance of NOT being supported anymore (i.e

.

Mark Phippard isn't in the i5 space anymore).



I then started using WDSC's iSeries Projects to get the source into a

place

where SVN could be enacted on it using the eclipse tooling and SVN

plugin.

This would have been fine except I DON'T do my development from iSeries
Projects and instead like to work directly with the members on the i5
(faster). The problem comes into play when debugging because the

debugger

looks at iSeries Projects first for the source member to bring up before
looking on the server - major bummer.



So my next attempt at change management with SVN is as follows:



1) Setup a netserver allowance for
/QSYS.LIB/LIBTOBACKUP.LIB/SRCPFTOBACKUP.FILE

2) Write a script (thinking .bat file or Java) that logs into that

folder

each night and downloads the source to a folder on the PC server

(Windows).

3) Execute the SVN commands to sync up that folder with the repository.



Right now I have TortioseSVN loaded on the Windows server and am

thinking

there must be some automated things I could do with that to get the

source

into SVN at 2am each morning.



Before I dive too far into this I am wondering if anybody else has

already

tried it, or if somebody has a better way to get code into SVN?



Actually, the more I think of it, a guy could easily write a Java app

that

resides on the iSeries and does ALL of this without involving the

Windows

side at all. All that would be needed would be a config file stating

which

source physical files should be backed up, the repository

location/user/pwd,

and you should be set! BTW, I found this completely Java open source

tool:

http://svnkit.com



Thoughts?

Aaron Bartell

http://mowyourlawn.com





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