deploy.py
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	dereckson
	Oct 22 2015, 17:52

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deploy.py
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	#!/usr/bin/env python3

	import json
	import os
	import sys

	#
	# Deployment methods
	#

	def deployExperiments (deploys, wwwroot):
	for deploy in deploys:
	deployExperiment(deploy, wwwroot)

	def deployExperiment (deploy, wwwroot):
	path = getDeployPath(deploy, wwwroot)

	if "repo" in deploy:
	branch = getDeployBranch(deploy)
	deployRepo(deploy["repo"], branch, path)
	else:
	createEmptyWebDirectory(path)

	def getDeployBranch(deploy):
	if "branch" in deploy:
	return deploy["branch"]
	else:
	return "master"

	def getDeployPath(deploy, wwwroot):
	if "path" in deploy:
	path = deploy["path"]
	else:
	if not "name" in deploy:
	raise KeyError("Name is missing from deploy.")
	path = deploy["name"]

	return os.path.join(wwwroot, path)

	def createEmptyWebDirectory(path):
	os.makedirs(path)

	def deployRepo(repo, branch, path):
	print("Deploy", repo, "at", branch, "to", path)

	#
	# Procedural code
	#

	# Parse argument
	if len(sys.argv) == 2:
	wwwroot = sys.argv[1]
	if not os.path.exists(wwwroot):
	createEmptyWebDirectory(wwwroot)
	if not os.path.isdir(wwwroot):
	print("Not a directory: " + wwwroot, file=sys.stderr)
	sys.exit(2)
	else:
	print("Usage:", sys.argv[0], "<web root directory to deploy>")
	sys.exit(1)

	# Reads deploy configuration file
	with open("conf/deploy.json", "r") as configDeployFile:
	data = configDeployFile.read()
	deploys = json.loads(data)

	# Deploy
	deployExperiments(deploys, wwwroot)