layerindex-web/layerindex/update_layer.py
Paul Eggleton 15748efcc1 update_layer: fix tinfoil shutdown
Fix a couple of problems with shutting down tinfoil:

1) tinfoil.shutdown() wasn't being called on error because it wasn't
   inside a finally: section, thus on error the script hung with bitbake
   master (since the tinfoil2 changes) - this is almost certainly a bug
   in bitbake but let's handle it here anyway.
2) We need to check whether the tinfoil object actually has a shutdown
   attribute since we still want to support updating for older branches
   where tinfoil didn't have a shutdown() method.

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
2017-01-16 13:07:58 +13:00

691 lines
34 KiB
Python

#!/usr/bin/env python
# Update layer index database for a single layer
#
# Copyright (C) 2013-2016 Intel Corporation
# Author: Paul Eggleton <paul.eggleton@linux.intel.com>
#
# Licensed under the MIT license, see COPYING.MIT for details
import sys
import os
import optparse
import logging
from datetime import datetime
import re
import tempfile
import shutil
from distutils.version import LooseVersion
import itertools
import utils
import recipeparse
import warnings
warnings.filterwarnings("ignore", category=DeprecationWarning)
logger = utils.logger_create('LayerIndexUpdate')
# Ensure PythonGit is installed (buildhistory_analysis needs it)
try:
import git
except ImportError:
logger.error("Please install PythonGit 0.3.1 or later in order to use this script")
sys.exit(1)
class DryRunRollbackException(Exception):
pass
def check_machine_conf(path, subdir_start):
subpath = path[len(subdir_start):]
res = conf_re.match(subpath)
if res:
return res.group(1)
return None
def split_recipe_fn(path):
splitfn = os.path.basename(path).split('.bb')[0].split('_', 2)
pn = splitfn[0]
if len(splitfn) > 1:
pv = splitfn[1]
else:
pv = "1.0"
return (pn, pv)
def update_recipe_file(tinfoil, data, path, recipe, layerdir_start, repodir):
fn = str(os.path.join(path, recipe.filename))
try:
logger.debug('Updating recipe %s' % fn)
if hasattr(tinfoil, 'parse_recipe_file'):
envdata = tinfoil.parse_recipe_file(fn, appends=False, config_data=data)
else:
envdata = bb.cache.Cache.loadDataFull(fn, [], data)
envdata.setVar('SRCPV', 'X')
recipe.pn = envdata.getVar("PN", True)
recipe.pv = envdata.getVar("PV", True)
recipe.summary = envdata.getVar("SUMMARY", True)
recipe.description = envdata.getVar("DESCRIPTION", True)
recipe.section = envdata.getVar("SECTION", True)
recipe.license = envdata.getVar("LICENSE", True)
recipe.homepage = envdata.getVar("HOMEPAGE", True)
recipe.bugtracker = envdata.getVar("BUGTRACKER", True) or ""
recipe.provides = envdata.getVar("PROVIDES", True) or ""
recipe.bbclassextend = envdata.getVar("BBCLASSEXTEND", True) or ""
# Handle recipe inherits for this recipe
gr = set(data.getVar("__inherit_cache", True) or [])
lr = set(envdata.getVar("__inherit_cache", True) or [])
recipe.inherits = ' '.join(sorted({os.path.splitext(os.path.basename(r))[0] for r in lr if r not in gr}))
recipe.blacklisted = envdata.getVarFlag('PNBLACKLIST', recipe.pn, True) or ""
recipe.save()
# Get file dependencies within this layer
deps = envdata.getVar('__depends', True)
filedeps = []
for depstr, date in deps:
found = False
if depstr.startswith(layerdir_start) and not depstr.endswith('/conf/layer.conf'):
filedeps.append(os.path.relpath(depstr, repodir))
from layerindex.models import RecipeFileDependency
recipedeps_delete = []
recipedeps = RecipeFileDependency.objects.filter(recipe=recipe)
for values in recipedeps.values('path'):
if 'path' in values:
recipedeps_delete.append(values['path'])
for filedep in filedeps:
if filedep in recipedeps_delete:
recipedeps_delete.remove(filedep)
continue
# New item, add it...
recipedep = RecipeFileDependency()
recipedep.layerbranch = recipe.layerbranch
recipedep.recipe = recipe
recipedep.path = filedep
recipedep.save()
for filedep in recipedeps_delete:
logger.debug('%s: removing %s' % (recipe.layerbranch, filedep))
recipedeps.filter(path=filedep).delete()
except KeyboardInterrupt:
raise
except BaseException as e:
if not recipe.pn:
recipe.pn = recipe.filename[:-3].split('_')[0]
logger.error("Unable to read %s: %s", fn, str(e))
def update_machine_conf_file(path, machine):
logger.debug('Updating machine %s' % path)
desc = ""
with open(path, 'r') as f:
for line in f:
if line.startswith('#@NAME:'):
desc = line[7:].strip()
if line.startswith('#@DESCRIPTION:'):
desc = line[14:].strip()
desc = re.sub(r'Machine configuration for( running)*( an)*( the)*', '', desc)
break
machine.description = desc
def update_distro_conf_file(path, distro):
logger.debug('Updating distro %s' % path)
desc = ""
with open(path, 'r') as f:
for line in f:
if line.startswith('#@NAME:'):
desc = line[7:].strip()
if line.startswith('#@DESCRIPTION:'):
desc = line[14:].strip()
desc = re.sub(r'Distribution configuration for( running)*( an)*( the)*', '', desc)
break
distro.description = desc
def main():
if LooseVersion(git.__version__) < '0.3.1':
logger.error("Version of GitPython is too old, please install GitPython (python-git) 0.3.1 or later in order to use this script")
sys.exit(1)
parser = optparse.OptionParser(
usage = """
%prog [options]""")
parser.add_option("-b", "--branch",
help = "Specify branch to update",
action="store", dest="branch", default='master')
parser.add_option("-l", "--layer",
help = "Layer to update",
action="store", dest="layer")
parser.add_option("-r", "--reload",
help = "Reload recipe data instead of updating since last update",
action="store_true", dest="reload")
parser.add_option("", "--fullreload",
help = "Discard existing recipe data and fetch it from scratch",
action="store_true", dest="fullreload")
parser.add_option("-n", "--dry-run",
help = "Don't write any data back to the database",
action="store_true", dest="dryrun")
parser.add_option("", "--nocheckout",
help = "Don't check out branches",
action="store_true", dest="nocheckout")
parser.add_option("-d", "--debug",
help = "Enable debug output",
action="store_const", const=logging.DEBUG, dest="loglevel", default=logging.INFO)
parser.add_option("-q", "--quiet",
help = "Hide all output except error messages",
action="store_const", const=logging.ERROR, dest="loglevel")
options, args = parser.parse_args(sys.argv)
if len(args) > 1:
logger.error('unexpected argument "%s"' % args[1])
parser.print_help()
sys.exit(1)
if options.fullreload:
options.reload = True
utils.setup_django()
import settings
from layerindex.models import LayerItem, LayerBranch, Recipe, RecipeFileDependency, Machine, Distro, BBAppend, BBClass
from django.db import transaction
logger.setLevel(options.loglevel)
branch = utils.get_branch(options.branch)
if not branch:
logger.error("Specified branch %s is not valid" % options.branch)
sys.exit(1)
fetchdir = settings.LAYER_FETCH_DIR
if not fetchdir:
logger.error("Please set LAYER_FETCH_DIR in settings.py")
sys.exit(1)
bitbakepath = os.path.join(fetchdir, 'bitbake')
try:
(tinfoil, tempdir) = recipeparse.init_parser(settings, branch, bitbakepath, nocheckout=options.nocheckout, logger=logger)
except recipeparse.RecipeParseError as e:
logger.error(str(e))
sys.exit(1)
# Clear the default value of SUMMARY so that we can use DESCRIPTION instead if it hasn't been set
tinfoil.config_data.setVar('SUMMARY', '')
# Clear the default value of DESCRIPTION so that we can see where it's not set
tinfoil.config_data.setVar('DESCRIPTION', '')
# Clear the default value of HOMEPAGE ('unknown')
tinfoil.config_data.setVar('HOMEPAGE', '')
# Set a blank value for LICENSE so that it doesn't cause the parser to die (e.g. with meta-ti -
# why won't they just fix that?!)
tinfoil.config_data.setVar('LICENSE', '')
try:
with transaction.atomic():
layer = utils.get_layer(options.layer)
urldir = layer.get_fetch_dir()
repodir = os.path.join(fetchdir, urldir)
layerbranch = layer.get_layerbranch(options.branch)
branchname = options.branch
branchdesc = options.branch
if layerbranch:
if layerbranch.actual_branch:
branchname = layerbranch.actual_branch
branchdesc = "%s (%s)" % (options.branch, branchname)
# Collect repo info
repo = git.Repo(repodir)
assert repo.bare == False
try:
if options.nocheckout:
topcommit = repo.commit('HEAD')
else:
topcommit = repo.commit('origin/%s' % branchname)
except:
if layerbranch:
logger.error("Failed update of layer %s - branch %s no longer exists" % (layer.name, branchdesc))
else:
logger.info("Skipping update of layer %s - branch %s doesn't exist" % (layer.name, branchdesc))
sys.exit(1)
newbranch = False
if not layerbranch:
# LayerBranch doesn't exist for this branch, create it
newbranch = True
layerbranch = LayerBranch()
layerbranch.layer = layer
layerbranch.branch = branch
layerbranch_source = layer.get_layerbranch(branch)
if not layerbranch_source:
layerbranch_source = layer.get_layerbranch(None)
if layerbranch_source:
layerbranch.vcs_subdir = layerbranch_source.vcs_subdir
layerbranch.save()
if layerbranch_source:
for maintainer in layerbranch_source.layermaintainer_set.all():
maintainer.pk = None
maintainer.id = None
maintainer.layerbranch = layerbranch
maintainer.save()
if layerbranch.vcs_subdir and not options.nocheckout:
# Find latest commit in subdirectory
# A bit odd to do it this way but apparently there's no other way in the GitPython API
topcommit = next(repo.iter_commits('origin/%s' % branchname, paths=layerbranch.vcs_subdir), None)
if not topcommit:
# This will error out if the directory is completely invalid or had never existed at this point
# If it previously existed but has since been deleted, you will get the revision where it was
# deleted - so we need to handle that case separately later
if newbranch:
logger.info("Skipping update of layer %s for branch %s - subdirectory %s does not exist on this branch" % (layer.name, branchdesc, layerbranch.vcs_subdir))
elif layerbranch.vcs_subdir:
logger.error("Subdirectory for layer %s does not exist on branch %s - if this is legitimate, the layer branch record should be deleted" % (layer.name, branchdesc))
else:
logger.error("Failed to get last revision for layer %s on branch %s" % (layer.name, branchdesc))
sys.exit(1)
layerdir = os.path.join(repodir, layerbranch.vcs_subdir)
layerdir_start = os.path.normpath(layerdir) + os.sep
layerrecipes = Recipe.objects.filter(layerbranch=layerbranch)
layermachines = Machine.objects.filter(layerbranch=layerbranch)
layerdistros = Distro.objects.filter(layerbranch=layerbranch)
layerappends = BBAppend.objects.filter(layerbranch=layerbranch)
layerclasses = BBClass.objects.filter(layerbranch=layerbranch)
if layerbranch.vcs_last_rev != topcommit.hexsha or options.reload:
# Check out appropriate branch
if not options.nocheckout:
out = utils.runcmd("git checkout origin/%s" % branchname, repodir, logger=logger)
out = utils.runcmd("git clean -f -x", repodir, logger=logger)
if layerbranch.vcs_subdir and not os.path.exists(layerdir):
if newbranch:
logger.info("Skipping update of layer %s for branch %s - subdirectory %s does not exist on this branch" % (layer.name, branchdesc, layerbranch.vcs_subdir))
else:
logger.error("Subdirectory for layer %s does not exist on branch %s - if this is legitimate, the layer branch record should be deleted" % (layer.name, branchdesc))
sys.exit(1)
if not os.path.exists(os.path.join(layerdir, 'conf/layer.conf')):
logger.error("conf/layer.conf not found for layer %s - is subdirectory set correctly?" % layer.name)
sys.exit(1)
logger.info("Collecting data for layer %s on branch %s" % (layer.name, branchdesc))
from layerconfparse import LayerConfParse
layerconfparser = LayerConfParse(logger=logger, tinfoil=tinfoil)
layer_config_data = layerconfparser.parse_layer(layerbranch, layerdir)
if not layer_config_data:
logger.info("Skipping update of layer %s for branch %s - conf/layer.conf may have parse issues" % (layer.name, branchdesc))
layerconfparser.shutdown()
sys.exit(1)
utils.add_dependencies(layerbranch, layer_config_data, logger=logger)
utils.add_recommends(layerbranch, layer_config_data, logger=logger)
utils.set_layerbranch_collection_version(layerbranch, layer_config_data, logger=logger)
layerbranch.save()
try:
config_data_copy = recipeparse.setup_layer(tinfoil.config_data, fetchdir, layerdir, layer, layerbranch)
except recipeparse.RecipeParseError as e:
logger.error(str(e))
sys.exit(1)
if layerbranch.vcs_last_rev and not options.reload:
try:
diff = repo.commit(layerbranch.vcs_last_rev).diff(topcommit)
except Exception as e:
logger.warn("Unable to get diff from last commit hash for layer %s - falling back to slow update: %s" % (layer.name, str(e)))
diff = None
else:
diff = None
# We handle recipes specially to try to preserve the same id
# when recipe upgrades happen (so that if a user bookmarks a
# recipe page it remains valid)
layerrecipes_delete = []
layerrecipes_add = []
# Check if any paths should be ignored because there are layers within this layer
removedirs = []
for root, dirs, files in os.walk(layerdir):
for diritem in dirs:
if os.path.exists(os.path.join(root, diritem, 'conf', 'layer.conf')):
removedirs.append(os.path.join(root, diritem) + os.sep)
if diff:
# Apply git changes to existing recipe list
if layerbranch.vcs_subdir:
subdir_start = os.path.normpath(layerbranch.vcs_subdir) + os.sep
else:
subdir_start = ""
updatedrecipes = set()
dirtyrecipes = set()
other_deletes = []
other_adds = []
for diffitem in diff.iter_change_type('R'):
oldpath = diffitem.a_blob.path
newpath = diffitem.b_blob.path
skip = False
for removedir in removedirs:
# FIXME what about files moved into removedirs?
if oldpath.startswith(removedir):
skip = True
break
if skip:
continue
if oldpath.startswith(subdir_start):
(oldtypename, oldfilepath, oldfilename) = recipeparse.detect_file_type(oldpath, subdir_start)
(newtypename, newfilepath, newfilename) = recipeparse.detect_file_type(newpath, subdir_start)
if oldtypename != newtypename:
# This is most likely to be a .inc file renamed to a .bb - and since
# there may be another recipe deleted at the same time we probably want
# to consider that, so just treat it as a delete and an add
logger.debug("Treating rename of %s to %s as a delete and add (since type changed)" % (oldpath, newpath))
other_deletes.append(diffitem)
other_adds.append(diffitem)
elif oldtypename == 'recipe':
results = layerrecipes.filter(filepath=oldfilepath).filter(filename=oldfilename)
if len(results):
recipe = results[0]
logger.debug("Rename recipe %s to %s" % (recipe, newpath))
recipe.filepath = newfilepath
recipe.filename = newfilename
recipe.save()
update_recipe_file(tinfoil, config_data_copy, os.path.join(layerdir, newfilepath), recipe, layerdir_start, repodir)
updatedrecipes.add(os.path.join(oldfilepath, oldfilename))
updatedrecipes.add(os.path.join(newfilepath, newfilename))
else:
logger.warn("Renamed recipe %s could not be found" % oldpath)
other_adds.append(diffitem)
elif oldtypename == 'bbappend':
results = layerappends.filter(filepath=oldfilepath).filter(filename=oldfilename)
if len(results):
logger.debug("Rename bbappend %s to %s" % (results[0], newfilepath))
results[0].filepath = newfilepath
results[0].filename = newfilename
results[0].save()
else:
logger.warn("Renamed bbappend %s could not be found" % oldpath)
other_adds.append(diffitem)
elif oldtypename == 'machine':
results = layermachines.filter(name=oldfilename)
if len(results):
logger.debug("Rename machine %s to %s" % (results[0], newfilename))
results[0].name = newfilename
results[0].save()
else:
logger.warn("Renamed machine %s could not be found" % oldpath)
other_adds.append(diffitem)
elif oldtypename == 'distro':
results = layerdistros.filter(name=oldfilename)
if len(results):
logger.debug("Rename distro %s to %s" % (results[0], newfilename))
results[0].name = newfilename
results[0].save()
else:
logger.warn("Renamed distro %s could not be found" % oldpath)
other_adds.append(diffitem)
elif oldtypename == 'bbclass':
results = layerclasses.filter(name=oldfilename)
if len(results):
logger.debug("Rename class %s to %s" % (results[0], newfilename))
results[0].name = newfilename
results[0].save()
else:
logger.warn("Renamed class %s could not be found" % oldpath)
other_adds.append(diffitem)
deps = RecipeFileDependency.objects.filter(layerbranch=layerbranch).filter(path=oldpath)
for dep in deps:
dirtyrecipes.add(dep.recipe)
for diffitem in itertools.chain(diff.iter_change_type('D'), other_deletes):
path = diffitem.a_blob.path
if path.startswith(subdir_start):
skip = False
for removedir in removedirs:
if path.startswith(removedir):
skip = True
break
if skip:
continue
(typename, filepath, filename) = recipeparse.detect_file_type(path, subdir_start)
if typename == 'recipe':
values = layerrecipes.filter(filepath=filepath).filter(filename=filename).values('id', 'filepath', 'filename', 'pn')
if len(values):
layerrecipes_delete.append(values[0])
logger.debug("Mark %s for deletion" % values[0])
updatedrecipes.add(os.path.join(values[0]['filepath'], values[0]['filename']))
else:
logger.warn("Deleted recipe %s could not be found" % path)
elif typename == 'bbappend':
layerappends.filter(filepath=filepath).filter(filename=filename).delete()
elif typename == 'machine':
layermachines.filter(name=filename).delete()
elif typename == 'distro':
layerdistros.filter(name=filename).delete()
elif typename == 'bbclass':
layerclasses.filter(name=filename).delete()
for diffitem in itertools.chain(diff.iter_change_type('A'), other_adds):
path = diffitem.b_blob.path
if path.startswith(subdir_start):
skip = False
for removedir in removedirs:
if path.startswith(removedir):
skip = True
break
if skip:
continue
(typename, filepath, filename) = recipeparse.detect_file_type(path, subdir_start)
if typename == 'recipe':
layerrecipes_add.append(os.path.join(repodir, path))
logger.debug("Mark %s for addition" % path)
updatedrecipes.add(os.path.join(filepath, filename))
elif typename == 'bbappend':
append = BBAppend()
append.layerbranch = layerbranch
append.filename = filename
append.filepath = filepath
append.save()
elif typename == 'machine':
machine = Machine()
machine.layerbranch = layerbranch
machine.name = filename
update_machine_conf_file(os.path.join(repodir, path), machine)
machine.save()
elif typename == 'distro':
distro = Distro()
distro.layerbranch = layerbranch
distro.name = filename
update_distro_conf_file(os.path.join(repodir, path), distro)
distro.save()
elif typename == 'bbclass':
bbclass = BBClass()
bbclass.layerbranch = layerbranch
bbclass.name = filename
bbclass.save()
for diffitem in diff.iter_change_type('M'):
path = diffitem.a_blob.path
if path.startswith(subdir_start):
skip = False
for removedir in removedirs:
if path.startswith(removedir):
skip = True
break
if skip:
continue
(typename, filepath, filename) = recipeparse.detect_file_type(path, subdir_start)
if typename == 'recipe':
logger.debug("Mark %s for update" % path)
results = layerrecipes.filter(filepath=filepath).filter(filename=filename)[:1]
if results:
recipe = results[0]
update_recipe_file(tinfoil, config_data_copy, os.path.join(layerdir, filepath), recipe, layerdir_start, repodir)
recipe.save()
updatedrecipes.add(recipe.full_path())
elif typename == 'machine':
results = layermachines.filter(name=filename)
if results:
machine = results[0]
update_machine_conf_file(os.path.join(repodir, path), machine)
machine.save()
elif typename == 'distro':
results = layerdistros.filter(name=filename)
if results:
distro = results[0]
update_distro_conf_file(os.path.join(repodir, path), distro)
distro.save()
deps = RecipeFileDependency.objects.filter(layerbranch=layerbranch).filter(path=path)
for dep in deps:
dirtyrecipes.add(dep.recipe)
for recipe in dirtyrecipes:
if not recipe.full_path() in updatedrecipes:
update_recipe_file(tinfoil, config_data_copy, os.path.join(layerdir, recipe.filepath), recipe, layerdir_start, repodir)
else:
# Collect recipe data from scratch
layerrecipe_fns = []
if options.fullreload:
layerrecipes.delete()
else:
# First, check which recipes still exist
layerrecipe_values = layerrecipes.values('id', 'filepath', 'filename', 'pn')
for v in layerrecipe_values:
root = os.path.join(layerdir, v['filepath'])
fullpath = os.path.join(root, v['filename'])
preserve = True
if os.path.exists(fullpath):
for removedir in removedirs:
if fullpath.startswith(removedir):
preserve = False
break
else:
preserve = False
if preserve:
# Recipe still exists, update it
results = layerrecipes.filter(id=v['id'])[:1]
recipe = results[0]
update_recipe_file(tinfoil, config_data_copy, root, recipe, layerdir_start, repodir)
else:
# Recipe no longer exists, mark it for later on
layerrecipes_delete.append(v)
layerrecipe_fns.append(fullpath)
layermachines.delete()
layerdistros.delete()
layerappends.delete()
layerclasses.delete()
for root, dirs, files in os.walk(layerdir):
if '.git' in dirs:
dirs.remove('.git')
for diritem in dirs[:]:
fullpath = os.path.join(root, diritem) + os.sep
if fullpath in removedirs:
dirs.remove(diritem)
for f in files:
fullpath = os.path.join(root, f)
(typename, _, filename) = recipeparse.detect_file_type(fullpath, layerdir_start)
if typename == 'recipe':
if fullpath not in layerrecipe_fns:
layerrecipes_add.append(fullpath)
elif typename == 'bbappend':
append = BBAppend()
append.layerbranch = layerbranch
append.filename = f
append.filepath = os.path.relpath(root, layerdir)
append.save()
elif typename == 'machine':
machine = Machine()
machine.layerbranch = layerbranch
machine.name = filename
update_machine_conf_file(fullpath, machine)
machine.save()
elif typename == 'distro':
distro = Distro()
distro.layerbranch = layerbranch
distro.name = filename
update_distro_conf_file(fullpath, distro)
distro.save()
elif typename == 'bbclass':
bbclass = BBClass()
bbclass.layerbranch = layerbranch
bbclass.name = filename
bbclass.save()
for added in layerrecipes_add:
# This is good enough without actually parsing the file
(pn, pv) = split_recipe_fn(added)
oldid = -1
for deleted in layerrecipes_delete:
if deleted['pn'] == pn:
oldid = deleted['id']
layerrecipes_delete.remove(deleted)
break
if oldid > -1:
# Reclaim a record we would have deleted
results = Recipe.objects.filter(id=oldid)[:1]
recipe = results[0]
logger.debug("Reclaim %s for %s %s" % (recipe, pn, pv))
else:
# Create new record
logger.debug("Add new recipe %s" % added)
recipe = Recipe()
recipe.layerbranch = layerbranch
recipe.filename = os.path.basename(added)
root = os.path.dirname(added)
recipe.filepath = os.path.relpath(root, layerdir)
update_recipe_file(tinfoil, config_data_copy, root, recipe, layerdir_start, repodir)
recipe.save()
for deleted in layerrecipes_delete:
logger.debug("Delete %s" % deleted)
results = Recipe.objects.filter(id=deleted['id'])[:1]
recipe = results[0]
recipe.delete()
# Save repo info
layerbranch.vcs_last_rev = topcommit.hexsha
layerbranch.vcs_last_commit = datetime.fromtimestamp(topcommit.committed_date)
else:
logger.info("Layer %s is already up-to-date for branch %s" % (layer.name, branchdesc))
layerbranch.vcs_last_fetch = datetime.now()
layerbranch.save()
if options.dryrun:
raise DryRunRollbackException()
except KeyboardInterrupt:
logger.warn("Update interrupted, changes to %s rolled back" % layer.name)
sys.exit(254)
except SystemExit:
raise
except DryRunRollbackException:
pass
except:
import traceback
traceback.print_exc()
finally:
if hasattr(tinfoil, 'shutdown'):
tinfoil.shutdown()
shutil.rmtree(tempdir)
sys.exit(0)
if __name__ == "__main__":
main()