View source for Online builds 10-apr-2013

= File structure for release area =

* Below is a proposed release directory structure.
* Official release area is /gluex/builds.
* Release area only writeable from hdsys account, read-only from all other accounts.
* Package directories are what gets checked into SVN.
* Packages can be checked in/out by anyone.
* Anyone can build and install packages in their own area.
* Only hdsys can release a package into official release area.
* Notes:
** Should SCONS dir be under packages?  Should it be installed?
** Need to develop scripts to check out and build everything using a single command.



 -- builds
    `-- devel
        |-- doc
        |-- jar
        |-- Linux_RHEL6-x86_64-gcc4.8.0
        |   |-- bin
        |   |-- include
        |   |-- lib
        |   `-- scripts
        |-- packages
        |   |-- aPackage
        |   |-- anotherPackage
        |   `-- cMsg2et
        |       |-- doc
        |       |-- java
        |           `-- org
        |               `-- jlab
        |                   `-- halld
        |       |-- jar
        |       |-- Linux_RHEL6-x86_64-gcc4.8.0
        |       |   |-- bin
        |       |   |-- include
        |       |   |-- lib
        |       |   `-- scripts
        |       `-- src
        |           |-- binsrc
        |           |-- examples
        |           |-- libsrc
        |           |   `-- cMsg2et -> .
        |           |-- scripts
        |           `-- test
        `-- SCONS



= SCONS Scripts =

* Need one SConstruct file at the top of all packages.
* SConstruct the same for ALL packages.
* Need SConscript file in each libsrc,binsrc,scripts,test directory.
* SConscript needed to define package dependencies (e.g. determine include paths for compiling).
* Need one Python script per package to define dependencies, where to find header files and libs, etc.
* Define package root dirs via env vars $PACKAGE or $PACKAGE_ROOT (e.g. $EVIO_ROOT).



 #  SConscript for libsrc
 #
 #  to customize fill in package dependencies
 #
 #  ejw, 16-apr-2013
  
 
 Import('libEnv')
 from halld_lib import define_dependencies, buildLib
 
 
 #  define dependencies on other packages
 define_dependencies(libEnv,'cmsg')
 
 
 
 #  build the lib
 buildLib(libEnv)



 #  SConscript for binsrc
 #
 #  to customize fill in package dependencies
 #
 #  ejw, 16-apr-2013
 
 
 Import('binEnv')
 from halld_lib import define_dependencies, buildBin
 
 
 #  define dependencies on other packages
 define_dependencies(binEnv,'codaobject cmsg evio et')
 
 
 #  build programs
 buildBin(binEnv)



Python script to define cMsg dependencies:

 from util import check_if_dir_exist
 import os
 
 def loadcmsg(env) :
 	OSENV = os.environ
 	CMSG = OSENV['CMSG']
 	check_if_dir_exist('CMSG')
 	if env['SHOWENV'] == "1":
 		print "Loading CMSG software from ", CMSG
 
 	cmsgincs = []
 	cmsgincs.append(CMSG + '/include')
 	env.AppendUnique(CPPPATH=cmsgincs)
 
 	cmsgldir = []
 	cmsgldir.append(CMSG + '/lib')
 	env.AppendUnique(LIBPATH = cmsgldir)
 
 	cmsglibs = []
 	cmsglibs.append('cmsgxx')
 	cmsglibs.append('cmsg')
 	cmsglibs.append('cmsgRegex')
 	cmsglibs.append('pthread')
 	cmsglibs.append('rt')
 	cmsglibs.append('dl')
 
  	env.AppendUnique(LIBS = cmsglibs)