Refactor installation app to move code to model and display more information

2012-06-29 02:39:13 -04:00
parent 2c8832e879
commit e6d861abf5
6 changed files with 160 additions and 28 deletions
@@ -1,3 +1,88 @@
-from django.db import models
+import sys
+import platform

-# Create your models here.
+import pbs
+import psutil
+
+try:
+    from pbs import lsb_release, uname
+except pbs.CommandNotFound:
+    LSB = False
+else:
+    LSB = True
+
+from django.db import models
+from django.utils.translation import ugettext_lazy as _
+from django.utils.datastructures import SortedDict
+
+from common.models import Singleton
+from common.utils import pretty_size
+
+
+class Property(object):
+    def __init__(self, name, label, value):
+        self.name = name
+        self.label = label
+        self.value = value
+        
+    def __unicode__(self):
+        return unicode(self.value)
+
+    def __str__(self):
+        return str(self.value)
+    
+
+class Installation(Singleton):
+    _properties = SortedDict()
+
+    is_first_run = models.BooleanField(default=False)
+    uuid = models.CharField(max_length=48, blank=True)
+
+    def add_property(self, property_instance):
+        self._properties[property_instance.name] = property_instance
+
+    def get_properties(self):
+        self.set_properties()
+        return self._properties
+
+    def set_properties(self):
+        self._properties = SortedDict()
+        if LSB:
+            self.add_property(Property('is_lsb', _(u'LSB OS'), True))
+            self.add_property(Property('distributor_id', _(u'Distributor ID'), lsb_release('-i','-s')))
+            self.add_property(Property('description', _(u'Description'), lsb_release('-d','-s')))
+            self.add_property(Property('release', _(u'Release'), lsb_release('-r','-s')))
+            self.add_property(Property('codename', _(u'Codename'), lsb_release('-c','-s')))
+            self.add_property(Property('sysinfo', _(u'System info'), uname('-a')))
+        else:
+            self.add_property(Property('is_posix', _(u'POSIX OS'), False))
+
+        self.add_property(Property('architecture', _(u'OS architecture'), platform.architecture()))
+        self.add_property(Property('python_version', _(u'Python version'), platform.python_version()))
+        self.add_property(Property('hostname', _(u'Hostname'), platform.node()))
+        self.add_property(Property('platform', _(u'Platform'), sys.platform))
+        self.add_property(Property('machine', _(u'Machine'), platform.machine()))
+        self.add_property(Property('processor', _(u'Processor'), platform.processor()))
+        self.add_property(Property('cpus', _(u'Number of CPUs'), psutil.NUM_CPUS))
+        self.add_property(Property('total_phymem', _(u'Total physical memory'), pretty_size(psutil.TOTAL_PHYMEM)))
+        self.add_property(Property('disk_partitions', _(u'Disk partitions'), '; '.join(['%s %s %s %s' % (partition.device, partition.mountpoint, partition.fstype, partition.opts) for partition in psutil.disk_partitions()])))
+        
+        try:
+            self.add_property(Property('tesseract', _(u'tesseract version'), pbs.tesseract('-v').stderr))
+        except pbs.CommandNotFound:
+            self.add_property(Property('tesseract', _(u'tesseract version'), _(u'not found')))
+
+        try:
+            self.add_property(Property('unpaper', _(u'unpaper version'), pbs.unpaper('-V').stdout))
+        except pbs.CommandNotFound:
+            self.add_property(Property('unpaper', _(u'unpaper version'), _(u'not found')))
+            
+    def __getattr__(self, name):
+        self.set_properties()
+        try:
+            return self._properties[name]
+        except KeyError:
+            raise AttributeError, name
+
+    class Meta:
+        verbose_name = verbose_name_plural = _(u'installation details')