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Full Discussion: How to manage multiple versions of a set of shell and SQL script utilities
Top Forums Shell Programming and Scripting How to manage multiple versions of a set of shell and SQL script utilities Post 52654 by mbb on Wednesday 23rd of June 2004 08:13:51 AM
Old 06-23-2004
Dennis, there is no easy answer to Source Control and Configuration Management.

Using a Source Control utility such as SCCS, RCS, CVS or (for Windows) Source Safe is an integral activity for project development. I recommend you start using a Source Control utility if you do not already do so.

Your Configuration Management method may seem logical for the time being, but could become tricky to manage with a large amount of files.

Your method, from a systems testing point of view, has a flaw - you do not have a single definitive version of your system to test against. As well as other problems, it means (I think) that you and the testers are both working in the same system?

Consider using something like this:

DEVELOPMENT->TEST->LIVE

where each environment would contain complete suite of your files at whichever version level applies. You would then have an enviromental variable referencing the base directory to the environment
e.g. SYSDIR=/software/dev
or SYSDIR=/software/test

The system files would then be referenced in relation to that directory e.g. $SYSDIR/Bin/myexe
$SYSDIR/Scripts/myscript.sql
$SYSDIR/Sql/mysql.sql

Anyway this is just a suggestion, take it or leave it as you wish.

Also, how do you track changes to your database? It is not clear if you are controlling changes to it or not? Remember a database is in effect a global data area. Because of this, be extremely cautious of making changes to it, especially when you have gone live with your system.

On the subject of Source Control and Configuration Management I urge you to take the following steps:

1) Document your method of version control and how to 'release' a version of a file. Just so everyone knows what is supposed to happen and when ...

2) Document all files, and at which versions, when you make a 'release'.

3) Document a backout plan for a 'release'.

4) Take regular backups of everything. Test the backups will actually work too!.

Hope this helps

MBB
 

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LEARN ABOUT FREEBSD

atf-sh

ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME

     atf-sh [-s shell] -- interpreter for shell-based test programs

SYNOPSIS

     atf-sh script

DESCRIPTION

     atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library.

     atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL.  atf-sh executes the inter-
     preter, loads the atf-sh(3) library and then runs the script.  You must consider atf-sh to be a POSIX shell by default and thus should not
     use any non-standard extensions.

     The following options are available:

     -s shell	  Specifies the shell to use instead of the value provided by ATF_SHELL.

ENVIRONMENT

     ATF_LIBEXECDIR    Overrides the builtin directory where atf-sh is located.  Should not be overridden other than for testing purposes.
     ATF_PKGDATADIR    Overrides the builtin directory where libatf-sh.subr is located.  Should not be overridden other than for testing purposes.
     ATF_SHELL	       Path to the system shell to be used in the generated scripts.  Scripts must not rely on this variable being set to select a
		       specific interpreter.

EXAMPLES

     Scripts using atf-sh(3) should start with:

	   #! /usr/bin/env atf-sh

     Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh.  Instead, you have to hardcode
     the path to atf-sh in the script and then use the -s option afterwards as a single parameter:

	   #! /path/to/bin/atf-sh -s/bin/bash

ENVIRONMENT

     ATF_SHELL	  Path to the system shell to be used in the generated scripts.

SEE ALSO

     atf-sh(3)

BSD
								September 27, 2014							       BSD
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