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Zerofree can be installed as a Debian package

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Show alternate message when package string for host_dependencies starts with http:// or https://
This commit is contained in:
Anders Ingemann 2014-02-23 22:54:25 +01:00
parent 210d3261c0
commit cdd372ca3b
5 changed files with 23 additions and 61 deletions
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12
common/tasks/host.py
View file

@ -11,14 +11,20 @@ class CheckExternalCommands(Task):
def run(cls, info):
from common.tools import log_check_call
from subprocess import CalledProcessError
import re
missing_packages = []
for command, package in info.host_dependencies.items():
try:
log_check_call(['type ' + command], shell=True)
except CalledProcessError:
msg = ('The command `{command}\' is not available, '
'it is located in the package `{package}\'.'
.format(command=command, package=package))
if re.match('^https?:\/\/', package):
msg = ('The command `{command}\' is not available, '
'you can download the software at `{package}\'.'
.format(command=command, package=package))
else:
msg = ('The command `{command}\' is not available, '
'it is located in the package `{package}\'.'
.format(command=command, package=package))
missing_packages.append(msg)
if len(missing_packages) > 0:
msg = '\n'.join(missing_packages)

9
plugins/minimize_size/__init__.py
View file

@ -5,9 +5,6 @@ def validate_manifest(data, validator, error):
import os.path
schema_path = os.path.join(os.path.dirname(__file__), 'manifest-schema.json')
validator(data, schema_path)
if 'zerofree' in data['plugins']['minimize_size']:
zerofree_schema_path = os.path.join(os.path.dirname(__file__), 'manifest-schema-zerofree.json')
validator(data, zerofree_schema_path)
if data['plugins']['minimize_size'].get('shrink', False) and data['volume']['backing'] != 'vmdk':
error('Can only shrink vmdk images', ['plugins', 'minimize_size', 'shrink'])
@ -16,11 +13,11 @@ def resolve_tasks(taskset, manifest):
taskset.update([tasks.AddFolderMounts,
tasks.RemoveFolderMounts,
])
if 'zerofree' in manifest.plugins['minimize_size']:
taskset.add(tasks.CheckZerofreePath)
if manifest.plugins['minimize_size'].get('zerofree', False):
taskset.add(tasks.AddRequiredCommands)
taskset.add(tasks.Zerofree)
if manifest.plugins['minimize_size'].get('shrink', False):
taskset.add(tasks.CheckVMWareDMCommand)
taskset.add(tasks.AddRequiredCommands)
taskset.add(tasks.ShrinkVolume)

18
plugins/minimize_size/manifest-schema-zerofree.json
View file

@ -1,18 +0,0 @@
{
"$schema": "http://json-schema.org/draft-04/schema#",
"title": "Minimize size plugin manifest",
"type": "object",
"properties": {
"volume": {
"type": "object",
"properties": {
"partitions": {
"type": "object",
"properties": {
"type": { "enum": ["none"] }
}
}
}
}
}
}

8
plugins/minimize_size/manifest-schema.json
View file

@ -10,16 +10,10 @@
"type": "object",
"properties": {
"shrink": { "type": "boolean" },
"zerofree": { "$ref": "#/definitions/absolute_path" }
"zerofree": { "type": "boolean" }
}
}
}
}
},
"definitions": {
"absolute_path": {
"type": "string",
"pattern": "^/[^\\0]+$"
}
}
}

37
plugins/minimize_size/tasks.py
View file

@ -3,6 +3,7 @@ from common import phases
from common.tasks import apt
from common.tasks import bootstrap
from common.tasks import filesystem
from common.tasks import host
from common.tasks import partitioning
from common.tasks import volume
import os
@ -46,22 +47,20 @@ class RemoveFolderMounts(Task):
del info.minimize_size_folder
class CheckZerofreePath(Task):
description = 'Checking path to zerofree tool'
class AddRequiredCommands(Task):
description = 'Adding commands required for reducing volume size'
phase = phases.preparation
successors = [host.CheckExternalCommands]
@classmethod
def run(cls, info):
from common.exceptions import TaskError
import os
zerofree = info.manifest.plugins['minimize_size']['zerofree']
if not os.path.isfile(zerofree):
raise TaskError('The path `{path}\' does not exist or is not a file'.format(path=zerofree))
if not os.access(zerofree, os.X_OK):
raise TaskError('The path `{path}\' is not executable'.format(path=zerofree))
if info.manifest.plugins['minimize_size'].get('zerofree', False):
info.host_dependencies['zerofree'] = 'zerofree'
if info.manifest.plugins['minimize_size'].get('shrink', False):
link = 'https://my.vmware.com/web/vmware/info/slug/desktop_end_user_computing/vmware_workstation/10_0'
info.host_dependencies['vmware-vdiskmanager'] = link
# Get zerofree here: http://intgat.tigress.co.uk/rmy/uml/index.html
class Zerofree(Task):
description = 'Zeroing unused blocks on the volume'
phase = phases.volume_unmounting
@ -71,23 +70,7 @@ class Zerofree(Task):
@classmethod
def run(cls, info):
from common.tools import log_check_call
zerofree = info.manifest.plugins['minimize_size']['zerofree']
log_check_call([zerofree, info.volume.device_path])
class CheckVMWareDMCommand(Task):
description = 'Checking path to vmware-vdiskmanager tool'
phase = phases.preparation
@classmethod
def run(cls, info):
from common.exceptions import TaskError
import os
vdiskmngr = '/usr/bin/vmware-vdiskmanager'
if not os.path.isfile(vdiskmngr):
raise TaskError('Unable to find vmware-vdiskmanager at `{path}\''.format(path=vdiskmngr))
if not os.access(vdiskmngr, os.X_OK):
raise TaskError('vmware-vdiskmanager at `{path}\' is not executable'.format(path=vdiskmngr))
log_check_call(['zerofree', info.volume.device_path])
class ShrinkVolume(Task):