finalise the doc for the 1.0 release

This commit is contained in:
gwen 2013-08-29 11:48:34 +02:00
parent a6213f2189
commit 92a61a91cd
5 changed files with 144 additions and 60 deletions

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@ -13,10 +13,11 @@ Tiramisu is made of almost three main objects :
Accessing the `Option`'s Accessing the `Option`'s
------------------------- -------------------------
The `Config` object attribute access notation stands for the value of the The :class:`~tiramisu.config.Config` object attribute access notation stands for
configuration's `Option`. That is, the `Config`'s object attribute is the name the value of the configuration's :class:`~tiramisu.option.Option`. That is, the
of the `Option`, and the value is the value accessed by the `__getattr__` :class:`~tiramisu.config.Config`'s object attribute is the name of the option,
attribute access mechanism. and the value is the value accessed by the `__getattr__` attribute access
mechanism.
If the attribute of the `Config` called by `__getattr__` has not been set before If the attribute of the `Config` called by `__getattr__` has not been set before
(by the classic `__setattr__` mechanism), the default value of the `Option` (by the classic `__setattr__` mechanism), the default value of the `Option`
@ -26,23 +27,27 @@ object is returned, and if no `Option` has been declared in the
:: ::
>>> from tiramisu.config import Config
>>> from tiramisu.option import BoolOption, OptionDescription
>>>
>>> gcdummy = BoolOption('dummy', 'dummy', default=False) >>> gcdummy = BoolOption('dummy', 'dummy', default=False)
>>> gcdummy.getdefault() >>> gcdummy.impl_getdefault()
False
>>> cfg.dummy
False False
>>> descr = OptionDescription('tiramisu', '', [gcdummy]) >>> descr = OptionDescription('tiramisu', '', [gcdummy])
>>> cfg = Config(descr) >>> cfg = Config(descr)
>>> cfg.dummy
False
>>> cfg.dummy = True >>> cfg.dummy = True
>>> cfg.dummy >>> cfg.dummy
True True
>>> cfg.idontexist >>> cfg.idontexist
AttributeError: 'OptionDescription' object has no attribute 'idontexist' AttributeError: 'OptionDescription' object has no attribute 'idontexist'
The `Option` objects (in this case the `BoolOption`), are organized into a tree The `Option` objects (in this case the :class:`~tiramisu.option.BoolOption`),
into nested `OptionDescription` objects. Every option has a name, as does every are organized into a tree into nested
option group. The parts of the full name of the option are separated by dots: :class:`~tiramisu.option.OptionDescription` objects. Every option has a name,
e.g. ``cfg.optgroup.optname``. as does every option group. The parts of the full name of the option are
separated by dots: e.g. ``cfg.optgroup.optname``.
Let's make the protocol of accessing a config's attribute explicit Let's make the protocol of accessing a config's attribute explicit
(because explicit is better than implicit): (because explicit is better than implicit):
@ -59,19 +64,18 @@ Let's make the protocol of accessing a config's attribute explicit
the value of the option. the value of the option.
But there are special exceptions. We will see later on that an option can be a But there are special exceptions. We will see later on that an option can be a
:term:`mandatory option`. A mandatory option is an option that must have a defined value. :term:`mandatory option`. A mandatory option is an option that must have a value
If no value have been set yet, the value is `None`. defined.
When the option is called to retrieve a value, an exception is raised.
What if a value has been set and `None` is to be returned again ? Don't Appart from this case, if no value have been set yet, the value is `None`. When
worry, an option value can be "reseted" with the help of the `option.Option.reset()` the option is called to retrieve a value, an exception is raised.
method.
If you know the path:
What if a value has been set and `None` is to be returned again ? Don't worry,
an option value can be reseted::
:: ::
>>> config.gc.dummy >>> cfg.cfgimpl_get_values().reset(gcdummy)
>>> cfg.dummy
False False
Setting the values of the options Setting the values of the options
@ -103,7 +107,6 @@ bundled into a configuration object which has a reference to its option
description (and therefore makes sure that the configuration values description (and therefore makes sure that the configuration values
adhere to the option description). adhere to the option description).
Common manipulations Common manipulations
------------------------ ------------------------

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@ -30,7 +30,6 @@ of the same type.
For example, an :class:`option.IntOption` validator waits for an `int` object of For example, an :class:`option.IntOption` validator waits for an `int` object of
course, an :class:`option.StrOption` validator waits for an `str`, vs... course, an :class:`option.StrOption` validator waits for an `str`, vs...
Where are located the values Where are located the values
------------------------------- -------------------------------

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@ -1,6 +1,11 @@
Test framework Test framework
================== ==================
Have a look at the :file:`test` subdirectory of the project.
We are using py.test_
.. _py.test: http://pytest.org/latest/
config APIs config APIs
----------------- -----------------
@ -11,9 +16,86 @@ config APIs
option APIs option APIs
--------------- ---------------
.. automodule:: test.test_option .. automodule:: test.test_option
:members: :members:
others
----------
.. automodule:: test.test_config_api
:members:
.. automodule:: test.test_mandatory
:members:
.. automodule:: test.test_config_big_example
:members:
.. automodule:: test.test_option_default
:members:
.. automodule:: test.test_option_consistency
:members:
.. automodule:: test.test_option
:members:
.. automodule:: test.test_cache
:members:
.. automodule:: test.test_option_setting
:members:
.. automodule:: test.test_config
:members:
.. automodule:: test.test_freeze
:members:
.. automodule:: test.test_config_ip
:members:
.. automodule:: test.test_slots
:members:
.. automodule:: test.test_reverse_from_path
:members:
.. automodule:: test.test_requires
:members:
.. automodule:: test.test_option_owner
:members:
.. automodule:: test.test_permissive
:members:
.. automodule:: test.test_option_type
:members:
.. automodule:: test.test_dereference
:members:
.. automodule:: test.test_storage
:members:
.. automodule:: test.test_option_calculation
:members:
.. automodule:: test.test_option_with_special_name
:members:
.. automodule:: test.test_config_domain
:members:
.. automodule:: test.test_symlink
:members:
.. automodule:: test.test_metaconfig
:members:
.. automodule:: test.test_parsing_group
:members:

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@ -5,10 +5,10 @@ Getting started
What is options handling ? What is options handling ?
================================= =================================
Due to more and more available options required to set up an operating system, Due to more and more available options required to set up an operating system,
to set up compiler options, and so on. it became quite annoying to hand the compiler options or whatever, it became quite annoying to hand the necessary
necessary options to where they are actually used and even more annoying to add options to where they are actually used and even more annoying to add new
new options. To circumvent these problems the configuration management was options. To circumvent these problems the configuration control was
introduced... introduced...
What is Tiramisu ? What is Tiramisu ?
@ -18,10 +18,8 @@ Tiramisu is an options handler and an options controller, wich aims at
producing flexible and fast options access. The main advantages are its access producing flexible and fast options access. The main advantages are its access
rules and the fact that the whole consistency is preserved at any time, see rules and the fact that the whole consistency is preserved at any time, see
:doc:`consistency`. There is of course type and structure validations, but also :doc:`consistency`. There is of course type and structure validations, but also
validations towards the whole options. validations towards the whole options. Furthermore, options can be reached and
changed according to the access rules from nearly everywhere in your appliance.
Last but not least, options can be reached and changed according to the access
rules from nearly everywhere in your appliance.
Just the facts Just the facts
============== ==============
@ -32,7 +30,7 @@ Download
--------- ---------
To obtain a copy of the sources, check it out from the repository using `git`. To obtain a copy of the sources, check it out from the repository using `git`.
We suggest using `git` if one wants to access the current developments. We suggest using `git` if one wants to access to the current developments.
:: ::
@ -52,29 +50,32 @@ manipulations:
>>> from tiramisu.config import Config >>> from tiramisu.config import Config
>>> from tiramisu.option import OptionDescription, BoolOption >>> from tiramisu.option import OptionDescription, BoolOption
>>> # let's create a group of options... with only one option inside
>>> descr = OptionDescription("optgroup", "", [ >>> descr = OptionDescription("optgroup", "", [
... BoolOption("bool", "", default=False)]) ... BoolOption("bool", "", default=False)])
>>> >>> # c is a namespace as well as a container for the options
>>> c = Config(descr) >>> c = Config(descr)
>>> # now we have a container, wich contains an option:
>>> c.bool >>> c.bool
False False
>>> c.bool = True >>> c.bool = True
>>> c.bool >>> c.bool
True True
So by now, we have:
So by now, we have
- a namespace (which is `c` here) - a namespace (which is `c` here)
- the access of an option's value by the - the access of an option's value by the
attribute access way (here `bool`, wich is a boolean option: attribute access way (here `bool`, wich is a boolean option
:class:`~tiramisu.option.BoolOption()`. :class:`~tiramisu.option.BoolOption()`.
So, option objects are produced at the entry point and then handed down to So, option objects are produced at the entry point `c` and then handed down to
where they are actually used. This keeps options local but available everywhere where they are actually used when `c.bool` is triggered. This keeps options
and consistent. local but available at any timer and consistent.
The namespace is created, we can set a `read_write` access to the options:: Once the namespace is created, we can set a
:meth:`~config.CommonConfig.read_write()` access to the options::
>>> c.read_write() >>> c.read_write()
which enables us to set a bunch of access rules that we wil explain later in
:doc:`status`.

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@ -1,5 +1,7 @@
.. default-role:: literal .. default-role:: literal
.. module:: tiramisu.option
The options types The options types
=================== ===================
@ -12,24 +14,6 @@ Most constructors take a ``default`` argument that specifies the default
value of the option. If this argument is not supplied the default value value of the option. If this argument is not supplied the default value
is assumed to be ``None``. is assumed to be ``None``.
.. _optdescr:
The `OptionDescription` class
-------------------------------
.. module:: tiramisu.option
.. autoclass:: OptionDescription
:special-members:
:members:
If you need to access an option object, you can do it with the OptionDescription
object. Not only the value of the option by attribute access, but the option
object itself that lives behind the scene. It can always be accessed internally.
The option objects are in the `_children` `OptionDescription`'s attribute.
The `Option` base class The `Option` base class
------------------------- -------------------------
@ -83,3 +67,18 @@ configuration, that is :
.. automethod:: __init__ .. automethod:: __init__
.. _optdescr:
The `OptionDescription` class
-------------------------------
.. autoclass:: OptionDescription
:special-members:
:members:
If you need to access to an option object, you can do it with the
OptionDescription object. Not only the value of the option by attribute access,
but the option object itself that lives behind the scene. It can always be
accessed internally. The option objects are in the `_children`
`OptionDescription`'s attribute.