336 lines
8.8 KiB
ReStructuredText
336 lines
8.8 KiB
ReStructuredText
.. _repolib_module:
|
|
|
|
=======
|
|
RepoLib
|
|
=======
|
|
|
|
The :ref:`repolib-module` module simplifies working with APT sources, especially
|
|
those stored in the DEB822 format. It translates these sources into Python
|
|
Objects for easy reading, parsing, and manipulation of them within Python
|
|
programs. The program takes a user-defined sources filename and reads the
|
|
contents, parsing it into a Python object which can then be iterated upon and
|
|
which uses native data types where practicable. The :ref:`repolib-module` module
|
|
also allows easy creation of new DEB822-style sources from user-supplied data.
|
|
|
|
.. toctree::
|
|
:maxdepth: 1
|
|
:caption: RepoLib
|
|
|
|
source/source
|
|
ppa-module
|
|
enums
|
|
|
|
==================
|
|
``repolib`` Module
|
|
==================
|
|
|
|
The ``repolib`` Module is the main module for the package. It allows interfacing
|
|
with the various Classes, Subclasses, and Functions provided by RepoLib.
|
|
|
|
Module-level Attributes
|
|
=======================
|
|
|
|
There are a couple of module-level attributes and functions provided directly in
|
|
the module.
|
|
|
|
.. _module-version
|
|
|
|
``VERSION``
|
|
-----------
|
|
|
|
repolib.VERSION
|
|
Provides the current version of the library.
|
|
|
|
.. _module_log_file_path
|
|
|
|
``LOG_FILE_PATH``
|
|
-----------------
|
|
|
|
repolib.LOG_FILE_PATH
|
|
Stores the current path to the log file
|
|
|
|
.. _module_log_level
|
|
|
|
repolib.LOG_LEVEL
|
|
Stores the current logging level. Note: Change this level using the
|
|
:ref:`module_set_logging_level` function.
|
|
|
|
.. _module_dirs
|
|
|
|
Configuration directories
|
|
=========================
|
|
|
|
repolib.KEYS_DIR
|
|
repolib.SOURCES_DIR
|
|
Stores the current :obj:`Pathlib.Path` pointing at the signing key and
|
|
sources directories, respectively. Used for building path names and reading
|
|
configuration.
|
|
|
|
.. _module_distro_codename:
|
|
|
|
DISTRO_CODENAME
|
|
===============
|
|
|
|
repolib.DISTRO_CODENAME
|
|
The current CODENAME field from LSB. If LSB is not available, it will
|
|
default to ``linux``.
|
|
|
|
|
|
.. _module_clean_chars
|
|
|
|
CLEAN_CHARS
|
|
===========
|
|
|
|
repolib.CLEAN_CHARS
|
|
A ``dict`` which maps invalid characters for the :ref:`ident` attributes
|
|
which cannot be used and their replacements. These limitations are based on
|
|
invalid characters in unix-compatible filenames.
|
|
|
|
.. _module_sources
|
|
|
|
sources
|
|
=======
|
|
|
|
repolib.sources
|
|
A :obj:`dict` storing all current sources configured on the system. To save
|
|
resources, this list is only loaded/parsed when
|
|
:ref:`module_load_all_sources` is called, since many simple operations don't
|
|
need the full list of currently-configured sources.
|
|
|
|
.. _module_files
|
|
|
|
files
|
|
=====
|
|
|
|
repolib.files
|
|
A :obj:`dict` containing any source file objects present in the configured
|
|
sources dir (See :ref:`module_dirs`). This list is empty until
|
|
:ref:`module_load_all_sources` is called, since many simple operations don't
|
|
need the full list of currently-installed config files.
|
|
|
|
.. _module_keys
|
|
|
|
keys
|
|
====
|
|
|
|
repolib.keys
|
|
A :obj`dict` containing any installed repository signing keys on the system.
|
|
This list is empty until :ref:`module_load_all_sources` is called, since
|
|
many simple operations don'tneed the full list of
|
|
currently-installed keys.
|
|
|
|
.. _module_compare_sources
|
|
|
|
compare_sources()
|
|
-----------------
|
|
|
|
repolib.compare_sources(source1, source2, excl_keys:list) -> bool
|
|
Compares two sources based on arbitrary criteria.
|
|
|
|
This looks at a given list of keys, and if the given keys between the two
|
|
given sources are identical, returns True.
|
|
|
|
Returns: :obj:`bool`
|
|
`True` if the sources are identical, otherwise `False`.
|
|
|
|
source1, source2
|
|
^^^^^^^^^^^^^^^^
|
|
The two source objects to compare.
|
|
|
|
excl_keys
|
|
^^^^^^^^^
|
|
:obj:`list` A list of DEB822key names to ignore when comparing. Even if these
|
|
items don't match, this function still returns true if all other keys match.
|
|
|
|
.. _module_combine_sources
|
|
|
|
combine_sources()
|
|
-----------------
|
|
|
|
repolib.combine_sources(source1, source2) -> None
|
|
Copies all of the data in `source2` and adds it to `source1`.
|
|
|
|
This avoids duplicating data and ensures that all of both sources' data are
|
|
present in the unified source
|
|
|
|
source1
|
|
^^^^^^^
|
|
The source into which both sources should be merged
|
|
|
|
source2
|
|
^^^^^^^
|
|
The source from which to copy to `source1`
|
|
|
|
|
|
.. _module_url_validator
|
|
|
|
url_validator()
|
|
---------------
|
|
|
|
repolib.url_validator(url: str) -> bool
|
|
Validates a given URL and attempts to see if it's a valid Debian respository
|
|
URL. Returns `True` if the URL appears to be valid and `False` if not.
|
|
|
|
url
|
|
^^^
|
|
:obj:`str`The url to validate
|
|
|
|
|
|
.. _module_validate_debline
|
|
|
|
validate_debline()
|
|
==================
|
|
|
|
repolib.util.validate_debline(line: str) -> bool
|
|
Validate if the provided debline ``line`` is valid or not.
|
|
|
|
Returns ``True`` if ``line`` is valid, otherwise ``False``.
|
|
|
|
line
|
|
^^^^
|
|
:obj:`str` The line to validate
|
|
|
|
|
|
.. _module_strip_hashes
|
|
|
|
strip_hashes()
|
|
--------------
|
|
|
|
repolib.strip_hashes(line: str) -> str
|
|
Strips leading hash (`#`) characters from a line and returns the result.
|
|
|
|
line
|
|
^^^^
|
|
:obj:`str` The line to strip
|
|
|
|
.. _module_load_all_sources
|
|
|
|
load_all_sources()
|
|
------------------
|
|
|
|
repolib.load_all_sources() -> None
|
|
|
|
Loads all sources from the current system configuration.
|
|
|
|
|
|
.. _module-set_testing
|
|
|
|
set_testing()
|
|
-------------
|
|
|
|
repolib.set_testing(testing: bool = True) -> None
|
|
Enables or disables testing mode in Repolib
|
|
|
|
When in testing mode, repolib will operate within a temporary directory
|
|
rather tan on your live system configuration. This can be used for testing
|
|
out changes to the program without worry about changes to the system config.
|
|
It's also used for unit testing.
|
|
|
|
|
|
testing
|
|
^^^^^^^
|
|
:obj:`bool` - Wether testing mode should be enabled (`True`) or not (`False`)
|
|
|
|
|
|
Example
|
|
=======
|
|
|
|
The following code as a Python program that creates in ``example.sources`` file
|
|
in `/etc/apt/sources.list.d` with some sample data, then modifies the suites
|
|
used by the source and prints it to the console, before finally saving the new,
|
|
modified source to disk::
|
|
|
|
import repolib
|
|
source = repolib.Source()
|
|
file = repolib.SourceFile(name='example')
|
|
|
|
source.ident = 'example-source'
|
|
source.name = 'Example Source'
|
|
source.types = [repolib.SourceType.BINARY]
|
|
source.uris = ['http://example.com/software']
|
|
source.suites = ['focal']
|
|
source.components = ['main']
|
|
file.add_source(source)
|
|
|
|
print(source.ui)
|
|
|
|
file.save()
|
|
|
|
When run with the appropriate arguments, it prints the contents of the source to
|
|
console and then saves a new ``example.sources`` file::
|
|
|
|
$
|
|
example-source:
|
|
Name: Example Source
|
|
Enabled: yes
|
|
Types: deb
|
|
URIs: http://example.com/software
|
|
Suites: focal
|
|
Components: main
|
|
|
|
$ ls -la /etc/apt/sources.list.d/example.sources
|
|
-rw-r--r-- 1 root root 159 May 1 15:21 /etc/apt/sources.list.d/example.sources
|
|
|
|
Below is a walkthrough of this example.
|
|
|
|
Creating Source and File Objects
|
|
--------------------------------
|
|
|
|
The first step in using :ref:`repolib_module` is creating :ref:`source_object`
|
|
and :ref:`file_object`::
|
|
|
|
source = repolib.Source()
|
|
file = repolib.SourceFile(name='example')
|
|
|
|
The :ref:`source_object` will hold all of the information for the source to be
|
|
created. The :ref:`file_object` represents the output file on disk, and allows
|
|
for advanced usage like multiple sources per file.
|
|
|
|
Adding and Manipulating Data
|
|
----------------------------
|
|
|
|
The :ref:`source_object` contains attributes which describe the connfiguration
|
|
aspects of the source required to fetch and install software. Generally, these
|
|
attributes are lists of strings which describe different aspects of the source.
|
|
They can be set or retrieved like any other attributes::
|
|
|
|
source.uris = ['http://example.com/software']
|
|
source.suites = ['focal']
|
|
|
|
This will add a ``focal`` suite to our source and add a URI from which to
|
|
download package lists.
|
|
|
|
:ref:`source_object` also presents a dict-like interface for setting and getting
|
|
configuration data. Key names are case-insensitive and their order within the
|
|
object are preserved.
|
|
|
|
Adding the Source to the File
|
|
-----------------------------
|
|
|
|
Before the :ref:`source_object` can be saved, it needs to be added to a
|
|
:ref:`file_object`::
|
|
|
|
file.add_source(source)
|
|
|
|
This will add `source` to the `file`'s lists of sources, as well as setting the
|
|
`source`'s file attribute to `file`.
|
|
|
|
Saving Data to Disk
|
|
-------------------
|
|
|
|
Once a source has the correct data and has been added to a file object, it can
|
|
be saved into the system configuration using :ref:`file-save`::
|
|
|
|
file.save()
|
|
|
|
When called, this writes the sources stored in the file to disk. This does not
|
|
destroy the object, so that it may be further manipulated by the program.
|
|
|
|
.. note::
|
|
While data within the source or file objects can be manipulated after
|
|
calling :ref:`file-save`, any subsequent changes will not be automatically
|
|
written to disk as well. The :ref:`file-save` method must be called to
|
|
commit changes to disk.
|
|
|
|
.. _source_object:
|