forked from expo/troggle
370 lines
14 KiB
Python
370 lines
14 KiB
Python
import sys
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import os
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import time
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import timeit
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import json
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import resource
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import settings
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os.environ['PYTHONPATH'] = settings.PYTHON_PATH
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os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'settings')
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print(" - settings on loading databaseReset.py")
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import django
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print(" - Memory footprint before loading Django: {:.3f} MB".format(resource.getrusage(resource.RUSAGE_SELF)[2]/1024.0))
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try:
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django.setup()
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except:
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print(" ! Cyclic reference failure. Can occur when the initial db is empty. Fixed now (in UploadFileForm) but easy to reintroduce..")
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raise
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print(" - Memory footprint after loading Django: {:.3f} MB".format(resource.getrusage(resource.RUSAGE_SELF)[2]/1024.0))
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import troggle.flatpages.models
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import troggle.core.models
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import troggle.core.models_survex
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from django.core import management
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from django.db import connection, close_old_connections, connections
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from django.http import HttpResponse
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from django.urls import reverse
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from django.contrib.auth.models import User
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from troggle.core.models import get_process_memory
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from troggle.core.models_caves import Cave, Entrance
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from troggle.parsers.imports import import_caves, import_people, import_surveyscans, \
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import_logbooks, import_QMs, import_survex, import_loadpos, import_drawingsfiles, \
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import_subcaves
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import troggle.logbooksdump
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if os.geteuid() == 0:
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# This protects the server from having the wrong file permissions written on logs and caches
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print("This script should be run as expo not root - quitting")
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exit()
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expouser=settings.EXPOUSER
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expouserpass=settings.EXPOUSERPASS
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expouseremail=settings.EXPOUSER_EMAIL
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def reinit_db():
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"""Rebuild database from scratch. Deletes the file first if sqlite is used,
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otherwise it drops the database and creates it.
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Note - initial loading of troggle.sqlite will already have populated the models
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in memory (django python models, not the database), so there is already a full load
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of stuff known. Deleting the db file does not clear memory.
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"""
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print("Reinitialising db ",end="")
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print(django.db.connections.databases['default']['NAME'])
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currentdbname = settings.DATABASES['default']['NAME']
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if currentdbname == ':memory:':
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# closing connections should wipe the in-memory database
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django.db.close_old_connections()
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for conn in django.db.connections.all():
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print(" ! Closing another connection to db...")
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conn.close()
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elif django.db.connections.databases['default']['ENGINE'] == 'django.db.backends.sqlite3':
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if os.path.isfile(currentdbname):
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try:
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print(" - deleting " + currentdbname)
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os.remove(currentdbname)
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except OSError:
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print(" ! OSError on removing: " + currentdbname + "\n ! Is the file open in another app? Is the server running?\n")
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raise
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else:
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print(" - No database file found: " + currentdbname + " ..continuing, will create it.\n")
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else:
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cursor = django.db.connection.cursor()
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cursor.execute("DROP DATABASE %s" % currentdbname)
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cursor.execute("CREATE DATABASE %s" % currentdbname)
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cursor.execute("ALTER DATABASE %s CHARACTER SET=utf8" % currentdbname)
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cursor.execute("USE %s" % currentdbname)
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print(" - Migrating: " + django.db.connections.databases['default']['NAME'])
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management.call_command('makemigrations','core', interactive=False)
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management.call_command('makemigrations','flatpages', interactive=False)
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management.call_command('migrate', interactive=False)
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management.call_command('migrate','core', interactive=False)
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management.call_command('migrate','flatpages', interactive=False)
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print(" - done migration on: " + settings.DATABASES['default']['NAME'])
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print("users in db already: ",len(User.objects.all()))
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try:
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print(" - Setting up admin user on: " + django.db.connections.databases['default']['NAME'])
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print(" - user: {} ({:.5}...) <{}> ".format(expouser, expouserpass, expouseremail))
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user = User.objects.create_user(expouser, expouseremail, expouserpass)
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user.is_staff = True
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user.is_superuser = True
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user.save()
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except:
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print(" ! INTEGRITY ERROR user on: " + settings.DATABASES['default']['NAME'])
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print(django.db.connections.databases['default']['NAME'])
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print(" ! You probably have not got a clean db when you thought you had.\n")
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print(" ! Also you are probably NOT running an in-memory db now.\n")
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print("users in db: ",len(User.objects.all()))
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print("tables in db: ",len(connection.introspection.table_names()))
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memdumpsql(fn='integrityfail.sql')
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django.db.connections.databases['default']['NAME'] = ':memory:'
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#raise
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def memdumpsql(fn):
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djconn = django.db.connection
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from dump import _iterdump
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with open(fn, 'w') as f:
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for line in _iterdump(djconn):
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f.write('%s\n' % line.encode("utf8"))
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return True
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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# These functions moved to a different file - not used currently.
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# import logbooksdump
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# def import_auto_logbooks():
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# def dumplogbooks():
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# def writeCaves():
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# Writes out all cave and entrance HTML files to
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# folder specified in settings.CAVEDESCRIPTIONS
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# for cave in Cave.objects.all():
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# cave.writeDataFile()
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# for entrance in Entrance.objects.all():
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# entrance.writeDataFile()
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# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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class JobQueue():
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"""A list of import operations to run. Always reports profile times
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in the same order.
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"""
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def __init__(self,run):
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self.runlabel = run
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self.queue = [] # tuples of (jobname, jobfunction)
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self.results = {}
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self.results_order=[
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"date","runlabel","reinit", "caves", "people",
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"logbooks", "QMs", "scans", "survex",
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"drawings", "test" ]
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for k in self.results_order:
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self.results[k]=[]
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self.tfile = "import_profile.json"
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self.htmlfile = "profile.html" # for HTML results table. Not yet done.
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#Adding elements to queue - enqueue
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def enq(self,label,func):
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self.queue.append((label,func))
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return True
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def loadprofiles(self):
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"""Load timings for previous runs from file
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"""
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if os.path.isfile(self.tfile):
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try:
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f = open(self.tfile, "r")
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data = json.load(f)
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for j in data:
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self.results[j] = data[j]
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except:
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print("FAILURE parsing JSON file %s" % (self.tfile))
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# Python bug: https://github.com/ShinNoNoir/twitterwebsearch/issues/12
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f.close()
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for j in self.results_order:
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self.results[j].append(None) # append a placeholder
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return True
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def saveprofiles(self):
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with open(self.tfile, 'w') as f:
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json.dump(self.results, f)
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return True
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def runqonce(self):
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"""Run all the jobs in the queue provided - once
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"""
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print("** Running job ", self.runlabel,end=" to ")
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print(django.db.connections.databases['default']['NAME'])
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jobstart = time.time()
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print("-- Initial memory in use {:.3f} MB".format(get_process_memory()))
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self.results["date"].pop()
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self.results["date"].append(jobstart)
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self.results["runlabel"].pop()
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self.results["runlabel"].append(self.runlabel)
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for runfunction in self.queue:
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start = time.time()
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memstart = get_process_memory()
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#--------------------
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runfunction[1]() # invokes function passed in the second item in the tuple
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#--------------------
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memend = get_process_memory()
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duration = time.time()-start
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#print(" - MEMORY start:{:.3f} MB end:{:.3f} MB change={:.3f} MB".format(memstart,memend, ))
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print("\n*- Ended \"", runfunction[0], "\" {:.1f} seconds + {:.3f} MB ({:.3f} MB)".format(duration, memend-memstart, memend))
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self.results[runfunction[0]].pop() # the null item
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self.results[runfunction[0]].append(duration)
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jobend = time.time()
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jobduration = jobend-jobstart
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print("** Ended job %s - %.1f seconds total." % (self.runlabel,jobduration))
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return True
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def append_placeholders(self):
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for j in self.results_order:
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self.results[j].append(None) # append a placeholder
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def run_now_django_tests(self,n):
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management.call_command('test', verbosity=n)
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django.db.close_old_connections()
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def run(self):
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self.loadprofiles()
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print("-- start ", django.db.connections.databases['default']['ENGINE'], django.db.connections.databases['default']['NAME'])
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self.runqonce()
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if settings.DATABASES['default']['NAME'] ==":memory:":
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memdumpsql('memdump.sql') # saved contents of in-memory db, could be imported later..
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self.saveprofiles()
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return True
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def showprofile(self):
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"""Prints out the time it took to run the jobqueue
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"""
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for k in self.results_order:
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if k =="test":
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break
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elif k =="date":
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print(" days ago ", end=' ')
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else:
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print('%10s (s)' % k, end=' ')
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percen=0
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r = self.results[k]
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for i in range(len(r)):
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if k == "runlabel":
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if r[i]:
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rp = r[i]
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else:
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rp = " - "
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print('%8s' % rp, end=' ')
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elif k =="date":
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# Calculate dates as days before present
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if r[i]:
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if i == len(r)-1:
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print(" this", end=' ')
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else:
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# prints one place to the left of where you expect
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if r[len(r)-1]:
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s = r[i]-r[len(r)-1]
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elif r[len(r)-2]:
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s = r[i]-r[len(r)-2]
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else:
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s = 0
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days = (s)/(24*60*60)
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print('%8.2f' % days, end=' ')
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elif r[i]:
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print('%8.1f' % r[i], end=' ')
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if i == len(r)-1 and r[i-1]:
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percen = 100* (r[i] - r[i-1])/r[i-1]
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if abs(percen) >0.1:
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print('%8.1f%%' % percen, end=' ')
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else:
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print(" - ", end=' ')
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print("")
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print("\n")
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return True
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def usage():
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print("""Usage is 'python databaseReset.py <command> [runlabel]'
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where command is:
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test - testing... imports people and prints profile. Deletes nothing.
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profile - print the profile from previous runs. Import nothing.
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reset - normal usage: clear database and reread everything from files - time-consuming
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init - initialisation. Automatic if you run reset.
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caves - read in the caves (must run first after initialisation)
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people - read in the people from folk.csv (must run after 'caves')
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logbooks - read in the logbooks
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QMs - read in the QM csv files (older caves only)
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scans - the survey scans in all the wallets (must run before survex)
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survex - read in the survex files - all the survex blocks and entrances x/y/z
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drawings - read in the Tunnel & Therion files - which scans the survey scans too
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autologbooks - Not used. read in autologbooks (what are these?)
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dumplogbooks - Not used. write out autologbooks (not working?)
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and [runlabel] is an optional string identifying this run of the script
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in the stored profiling data 'import-profile.json'
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caves and logbooks must be run on an empty db before the others as they
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set up db tables used by the others.
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""")
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if __name__ == "__main__":
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if os.geteuid() == 0:
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print("Do not run as root or using sudo - file permissions for cache files and logs will break")
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print("Aborting run.")
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exit()
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if len(sys.argv)>2:
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runlabel = sys.argv[len(sys.argv)-1]
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else:
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runlabel=None
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jq = JobQueue(runlabel)
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if len(sys.argv)==1:
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usage()
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exit()
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elif "init" in sys.argv:
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jq.enq("reinit",reinit_db)
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elif "test" in sys.argv:
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jq.enq("caves",import_caves)
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import_subcaves()
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#jq.enq("people",import_people)
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#jq.run_now_django_tests(2)
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elif "caves" in sys.argv:
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jq.enq("caves",import_caves)
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elif "logbooks" in sys.argv:
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jq.enq("logbooks",import_logbooks)
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elif "people" in sys.argv:
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jq.enq("people",import_people)
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elif "QMs" in sys.argv:
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jq.enq("QMs",import_QMs)
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elif "reset" in sys.argv:
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jq.enq("reinit",reinit_db)
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jq.enq("caves",import_caves)
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jq.enq("people",import_people)
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jq.enq("scans",import_surveyscans)
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jq.enq("logbooks",import_logbooks)
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jq.enq("QMs",import_QMs)
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jq.enq("drawings",import_drawingsfiles)
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jq.enq("survex",import_survex)
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elif "scans" in sys.argv:
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jq.enq("scans",import_surveyscans)
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elif "survex" in sys.argv:
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jq.enq("survex",import_survex)
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elif "loadpos" in sys.argv:
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jq.enq("survex",import_loadpos)
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elif "drawings" in sys.argv:
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jq.enq("drawings",import_drawingsfiles)
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elif "autologbooks" in sys.argv: # untested in 2020
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import_auto_logbooks()
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elif "dumplogbooks" in sys.argv: # untested in 2020
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dumplogbooks()
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# elif "writecaves" in sys.argv: # untested in 2020 - will overwrite input files!!
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# writeCaves()
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elif "profile" in sys.argv:
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jq.loadprofiles()
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jq.showprofile()
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exit()
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elif "help" in sys.argv:
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usage()
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exit()
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else:
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usage()
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print("%s not recognised as a command." % sys.argv[1])
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exit()
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jq.run()
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jq.showprofile()
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