Bump version to 0.2.2
[snf-image-creator] / image_creator / os_type / linux.py
index de82e7d..0166129 100644 (file)
 # or implied, of GRNET S.A.
 
 from image_creator.os_type.unix import Unix, sysprep
-from image_creator.util import warn, output
 
 import re
 import time
 
 
 class Linux(Unix):
-    def __init__(self, rootdev, ghandler):
-        super(Linux, self).__init__(rootdev, ghandler)
+    def __init__(self, rootdev, ghandler, output):
+        super(Linux, self).__init__(rootdev, ghandler, output)
         self._uuid = dict()
         self._persistent = re.compile('/dev/[hsv]d[a-z][1-9]*')
 
@@ -51,10 +50,10 @@ class Linux(Unix):
         if dev in self._uuid:
             return self._uuid[dev]
 
-        for attr in self.g.blkid(dev):
-            if attr[0] == 'UUID':
-                self._uuid[dev] = attr[1]
-                return attr[1]
+        uuid = self.g.vfs_uuid(dev)
+        assert len(uuid)
+        self._uuid[dev] = uuid
+        return uuid
 
     @sysprep()
     def fix_acpid(self, print_header=True):
@@ -63,14 +62,14 @@ class Linux(Unix):
         """
 
         if print_header:
-            output('Fixing acpid powerdown action')
+            self.out.output('Fixing acpid powerdown action')
 
         powerbtn_action = '#!/bin/sh\n\nPATH=/sbin:/bin:/usr/bin\n' \
-                                'shutdown -h now \"Power button pressed\"\n'
+                          'shutdown -h now "Power button pressed"\n'
 
         events_dir = '/etc/acpi/events'
         if not self.g.is_dir(events_dir):
-            warn("No acpid event directory found")
+            self.out.warn("No acpid event directory found")
             return
 
         event_exp = re.compile('event=(.+)', re.I)
@@ -92,47 +91,77 @@ class Linux(Unix):
                     action = m.group(1)
                     continue
 
-            if event.strip() == "button[ /]power":
+            if event.strip() in ("button[ /]power", "button/power.*"):
                 if action:
                     if not self.g.is_file(action):
-                        warn("Acpid action file: %s does not exist" % action)
+                        self.out.warn("Acpid action file: %s does not exist" %
+                                      action)
                         return
-                    self.g.copy_file_to_file(action, \
-                      "%s.orig.snf-image-creator-%d" % (action, time.time()))
+                    self.g.copy_file_to_file(action,
+                                             "%s.orig.snf-image-creator-%d" %
+                                             (action, time.time()))
                     self.g.write(action, powerbtn_action)
                     return
                 else:
-                    warn("Acpid event file %s does not contain and action")
+                    self.out.warn("Acpid event file %s does not contain and "
+                                  "action")
                     return
             elif event.strip() == ".*":
-                warn("Found action `.*'. Don't know how to handle this." \
-                    " Please edit \%s' image file manually to make the " \
-                    "system immediatelly shutdown when an power button acpi " \
-                    "event occures" % action)
+                self.out.warn("Found action `.*'. Don't know how to handle "
+                              "this. Please edit `%s' image file manually to "
+                              "make the system immediatelly shutdown when an "
+                              "power button acpi event occures." %
+                              action.strip().split()[0])
                 return
 
+        self.out.warn("No acpi power button event found!")
+
     @sysprep()
-    def persistent_net_rules(self, print_header=True):
+    def remove_persistent_net_rules(self, print_header=True):
         """Remove udev rules that will keep network interface names persistent
         after hardware changes and reboots. Those rules will be created again
         the next time the image runs.
         """
 
         if print_header:
-            output('Removing persistent network interface names')
+            self.out.output('Removing persistent network interface names')
 
         rule_file = '/etc/udev/rules.d/70-persistent-net.rules'
         if self.g.is_file(rule_file):
             self.g.rm(rule_file)
 
     @sysprep()
-    def persistent_devs(self, print_header=True):
+    def remove_swap_entry(self, print_header=True):
+        """Remove swap entry from /etc/fstab. If swap is the last partition
+        then the partition will be removed when shrinking is performed. If the
+        swap partition is not the last partition in the disk or if you are not
+        going to shrink the image you should probably disable this.
+        """
+
+        if print_header:
+            self.out.output('Removing swap entry from fstab')
+
+        new_fstab = ""
+        fstab = self.g.cat('/etc/fstab')
+        for line in fstab.splitlines():
+
+            entry = line.split('#')[0].strip().split()
+            if len(entry) == 6 and entry[2] == 'swap':
+                continue
+
+            new_fstab += "%s\n" % line
+
+        self.g.write('/etc/fstab', new_fstab)
+
+    @sysprep()
+    def use_persistent_block_device_names(self, print_header=True):
         """Scan fstab & grub configuration files and replace all non-persistent
-        device appearences with UUIDs.
+        device references with UUIDs.
         """
 
         if print_header:
-            output('Replacing fstab & grub non-persistent device appearences')
+            self.out.output("Replacing fstab & grub non-persistent device "
+                            "references")
 
         # convert all devices in fstab to persistent
         persistent_root = self._persistent_fstab()
@@ -194,7 +223,7 @@ class Linux(Unix):
 
         entry = line.split()
         if len(entry) != 6:
-            warn("Detected abnormal entry in fstab")
+            self.out.warn("Detected abnormal entry in fstab")
             return orig, "", ""
 
         dev = entry[0]