"""
Lib acts as the main bootstrap code for a python lib
Important: call init with main as a function pointer argument for bootstrapping to occur
"""



import sys
import os
import traceback
import time

global BASEDIR

EXCLUDES=(".git")



#wrapper to easily exclude anything in excludes 
#returns: shoud exclude?(bool)
def exclude(path):
    exclude=False

    for each in EXCLUDES:
        if (path.find(each)>=0):
            return True

    return exclude

#recursively crawl a directory,appending all dirs rooted at BASEDIR to system path
def append_all(dir=None):

    def appendPath(path):
        path = os.path.abspath(path)

        if(sys.platform == "win32" ):
            path = path.lower()
        sys.path.insert(0,path)
#       print "Appending "+path


    
    if (dir==None):
        global BASEDIR
        dir=os.path.join(BASEDIR,"lib")

    appendPath(dir)
        
    for each in os.listdir(dir):
        path = os.path.join(dir,each)

        if (os.path.isdir(path) and not exclude(path)):
            append_all(path)


"""
this method handles all runtime scaffolding, to keep the project's main method cleaner.
It handles logging, debugging, and performance metrics (raw runtime)    
This basically establishes the runtime environment for the project, and is intended to be
useable with any project, handling common custodial tasks.

Accepts a function pointer, main, as an argument.
"""

def init(main):
    from log import initLogger
    from log import info
    from log import error

    initLogger()

    rc=1
    try:
           start = time.time()
           
           main()

           end = time.time()
           elapsed= end - start
           info("Program ran for "+str(elapsed)+" seconds.") 
    except:
        rc=0
        err=traceback.format_exc()
        if (err!="None\n"):
            error(err)
    finally:

        info("Exitting") 
    
def boot_strap(main):
    global BASEDIR
    sys.argv[0]             

    pathname = os.path.dirname(__file__)        
    append_all(pathname)


    BASEDIR=pathname

    init(main)