project_subsystems.py #3

#!/usr/bin/env python

# Copyright (c) 2013, Matthew Attaway
# All rights reserved.

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# are permitted provided that the following conditions are met:
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#     Redistributions of source code must retain the above copyright notice, this 
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#     Redistributions in binary form must reproduce the above copyright notice, 
#     this list of conditions and the following disclaimer in the documentation 
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
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'''
  This script updates the Perforce job spec with the list of projects in Swarm so that they
  can easily have jobs filed against them. The field used is configurable.
'''


'''
  Method to run a Perforce command, optionally in a nice dictionary.
  Note that the marshaled output only works with Python 2.7 because we can't have nice things.
'''
import subprocess, marshal

def P4( cmd, port="", user="", client="", p4="/usr/local/bin/p4", marshaled=True, form=0 ):
  results = []
  c = p4

  '''build up the command'''
  if port != "":
    c+=" -p %s " % port

  if user != "":
    c+=" -u %s " % user

  if client != "":
    c+=" -c %s " % client

  if marshaled and not form:
    c+=' -G '
  c+= "%s" % cmd
  
  '''if we're sending in a form, fire it off and run'''
  if form:
    process = subprocess.Popen( c, stdin=subprocess.PIPE, stdout=subprocess.PIPE, shell=True )
    output = process.communicate(input=form)[0]
    results.append( output )
    return results

  '''otherwise we're running a normal command'''
  process = subprocess.Popen( c, stdout=subprocess.PIPE, shell=True )  
  try:
    while 1:
      if marshaled:
        output = marshal.load( process.stdout )
      else:
        output = process.stdout.read()
        if output == "":
            break
      results.append( output )
  except EOFError:
    pass
  finally:
    process.stdout.close()
  return results


if __name__=="__main__":
    
  import json, requests, re
 
  '''change these to work with your installation'''
  swarm_url = 'https://swarm.workshop.perforce.com'
  p4port    = 'workshop.perforce.com:1666'
  p4user    = 'matt_attaway'
  project_field = 'Project'

  '''grab all of the projects and escape the output to make it safe for a p4 job select field'''
  projects = ""  
  data = requests.get(url=swarm_url+'/projects').json()

  for project in data:
    if project['deleted'] != 'false':
      name = re.sub( '/','-', project['id'] )
      name = re.sub(' ', '_', name)
      projects+=name + '/'

  '''grab the current jobspec'''
  results = P4('jobspec -o', port=p4port, user=p4user, marshaled=False)
  lines = results[0].splitlines()
  updated_lines = []
  pf_start = "\t%s" % project_field

  '''update the list of projects'''
  values_seen = False
  for line in lines:
    if line.startswith(pf_start) and not values_seen:
      updated_lines.append( pf_start + ' ' + projects[:-1] )
      values_seen = True
    else:
      updated_lines.append( line )

  
  print( '\n'.join(updated_lines) )

  # print( P4('jobspec -i', port=p4port, user=p4user, form=('\n'.join(updated_lines)) ) )