This PR was squashed before being merged into the master branch (closes#7454).
Discussion
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[Console] application/command as text/xml/whatever decoupling
This PR removes description generation from `Command`, `Application` and `InputDefinition` classes and delegate it to specialized descriptor classes, making it dead simple to add new output formats.
**Maybe this could include other commands, like `router:debug` or `container:debug` (see #5740)?**
- [x] Add a `DescriptorProvider` which uses `DescriptorInterface` objects to describe things.
- [x] Add `txt` descriptors.
- [x] Add `xml` descriptors.
- [x] Add `json` descriptors.
- [x] Add `md` descriptors.
- [x] Remove obsolete methods.
- [x] Repair tests.
| Q | A
| ------------- | ---
| Bug fix? | no
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | #6339
Commits
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51512e6 [Console] application/command as text/xml/whatever decoupling
* The command names have now full support for nested namespaces. It means
that abbreviations work for each sub-namespace:
./app/console doctrine:mapping:info
# worked before
./app/console doctrine:map:in
# works now
./app/console doc:map:in
* Aliases are now first class citizen. They can have their own namespace,
like the main name. So, now, there is no difference between an alias and a
name.
* As names and aliases can be namespaced, the Command::getFullName() and
Command::getNamespace() method have been removed.
To keep language consistent, three methods were changed in InputOption:
* `InputOption::acceptParameter()` -> `InputOption::acceptValue()`
* `InputOption::isParameterRequired()` -> InputOption::isValueRequired()`
* `InputOption::isParameterOptional()` -> `InputOption::isValueOptional()`
The InputDefinition::asXml() method was also modified to update the `accept_value` and `is_value_required` attributes.
