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expyre-0.1.4
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مشاهده بیشترتوضیحات
Python wrapper over `atd` to schedule deletion of files.
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | expyre-0.1.4 |
| نام | expyre |
| نسخه کتابخانه | 0.1.4 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Steven Fernandez |
| ایمیل نویسنده | steve@lonetwin.net |
| آدرس صفحه اصلی | https://github.com/lonetwin/expyre |
| آدرس اینترنتی | https://pypi.org/project/expyre/ |
| مجوز | MIT |
expyre
======
A pythonic wrapper over `atd` to schedule deletion of files/directories.
Source code: https://github.com/lonetwin/expyre
Install using pip ``pip install expyre`` or download from https://pypi.python.org/pypi/expyre
What is expyre ?
----------------
``expyre`` is a python module that provides a command line as well as a
``contextmanager`` which enables you to schedule files/directories for deletion
at some point in the future. It does this by relying on the `atd(8)` service for
the scheduling of jobs.
Since usually examples are better than a long README
Command line usage
::
# - schedule a file for deletion 2 days from now
$ expyre -p path/to/file0 @now + 2days
[212] /home/steve/src/venvs/expyre/path/to/file0 will expire at 2016-05-16 19:10
# - schedule a file for deletion a minute befor new year 2018
$ expyre --unless-modified -p path/to/file1 @23:59 2017-12-31
[213] /home/steve/src/venvs/expyre/path/to/file1 will expire at 2017-12-31 23:59
# - list the current expiry schedule
$ expyre -l
/home/steve/src/venvs/expyre/path/to/file1 scheduled to expire at 2017-01-01 19:07 unless modified after 19:07 2016-05-14
/home/steve/src/venvs/expyre/path/to/file0 scheduled to expire at 2016-05-16 19:10
# - remove a file from the expiry schedule
$ expyre -r /home/steve/src/venvs/expyre/path/to/file0
Successfully removed these paths from expiry list:
/home/steve/src/venvs/expyre/path/to/file0
Python usage
.. code:: python
from datetime import datetime, timedelta
from expyre.helpers import open_expiring, expire_path, get_scheduled_jobs, remove_from_schedule
# - as a contextmanager
filename = '/path/to/file'
with open_expiring(filename, 'w', at='now + 3days', unless_accessed=True) as fd:
# - create a file with a scheduled deletion time exactly 3 days from
# time of creation unless it has been accessed before the deletion time.
pass # - do stuff with file
# - schedule a file for deletion providing time as a string
expire_path('./path/to/file0', 'now + 2days')
JobSpec(job_id='216', path='/home/steve/src/venvs/expyre/path/to/file0', timestamp=datetime.datetime(2016, 5, 16, 19, 20), conditions='unless accessed after 19:20 2016-05-14 or unless modified after 19:20 2016-05-14')
# - schedule a file for deletion providing time as a datetime object
expire_path('./path/to/file1', (datetime.now() + timedelta(days=3)), unless_modified=True)
JobSpec(job_id='217', path='/home/steve/src/venvs/expyre/path/to/file1', timestamp=datetime.datetime(2016, 5, 17, 19, 20), conditions='unless accessed after 19:20 2016-05-14 or unless modified after 19:20 2016-05-14')
# - Get the expiry schedule as a dict
get_scheduled_jobs()
{'/home/steve/src/venvs/expyre/path/to/file0': JobSpec(job_id='216', path='/home/steve/src/venvs/expyre/path/to/file0', timestamp=datetime.datetime(2016, 5, 16, 19, 20), conditions='unless accessed after 19:20 2016-05-14 or unless modified after 19:20 2016-05-14'),
'/home/steve/src/venvs/expyre/path/to/file1': JobSpec(job_id='217', path='/home/steve/src/venvs/expyre/path/to/file1', timestamp=datetime.datetime(2016, 5, 17, 19, 20), conditions='unless accessed after 19:20 2016-05-14 or unless modified after 19:20 2016-05-14')}
# - remove a file from the expiry schedule
remove_from_schedule(['/home/steve/src/venvs/expyre/path/to/file0'])
(['/home/steve/src/venvs/expyre/path/to/file0'], [])
A few things to note
--------------------
* This has only be tested on my local dev box (Fedora 23 with python 2.7).
So, YMMV. Please do some cursory testing before relying on this tool.
* Since (AFAICT), ``atd(8)`` has only minute level precision, the same
limitation applies to ``expyre``.
* Directories will be deleted with a ``rm -rf`` option ! So, you need to be
careful when scheduling those for deletion.
* The ``--unless_accessed`` and ``--unless_modified`` options to directories
imply the access time and modification time for the *directory*, not the files
under them.
* Currently no checks are done to see whether there is already an existing job
for a path being scheduled for deletion. I am not yet convinced that this is
really necessary to be done as a default action.
* Please, please, please do report bugs or send in suggestions for improvements
if you can. This would be greatly appreciated.
* Patches and code reviews would be even more appreciated.
TODO
----
* More tests
* Write docs
Usage examples
~~~~~~~~~~~~~~
* Write a inotify based example of how you may set auto-expiry for files in the
``Downloads/`` folder.
* Write an example file-upload web service with an expiry schedule.
نحوه نصب
نصب پکیج whl expyre-0.1.4:
pip install expyre-0.1.4.whl
نصب پکیج tar.gz expyre-0.1.4:
pip install expyre-0.1.4.tar.gz