| |
|
| - The 'peak.util.imports.whenImported' function didn't work. |
- The 'peak.util.imports.whenImported' function didn't work. |
| |
|
| |
|
| |
|
| |
|
| Fixes and Enhancements since Version 0.5 alpha 1 |
|
| |
|
| Changed, Enhanced, or Newly Deprecated Features |
|
| |
|
| - Added a 'shellcmd:' URL scheme that returns a function that calls |
|
| 'os.system()' on the body of the URL. It's intended for use as a command |
|
| factory, as is needed by the 'URLChecker' periodic task. |
|
| |
|
| - You can now define adapters from arbitrary types to 'binding.IBindingNode', |
|
| and thus be able to use them as part of a component hierarchy - without |
|
| needing to directly add 'getParentComponent()' or 'getComponentName()' |
|
| methods to them. |
|
| |
|
| - Added experimental 'invoke.c' script for POSIX-ish platforms with funky |
|
| '#!' support, or lack thereof. |
|
| |
|
| 'invoke' is designed to be used like this:: |
|
| |
|
| #!/usr/local/bin/invoke peak somearg otherarg... |
|
| |
|
| This should work on most sane platforms with a long-enough commandline. |
|
| (See "this page":http://homepages.cwi.nl/~aeb/std/hashexclam-1.html for |
|
| details on the insanely incompatible ways different Unixes interpret '#!' |
|
| lines.) |
|
| |
|
| The script is not currently built or installed by setup.py. On the |
|
| platforms it's targeted at, you should be able to build it with:: |
|
| |
|
| gcc -o invoke invoke.c |
|
| |
|
| (Yes, it really is that simple of a script.) |
|
| |
|
| - Added a ZConfig schema for 'running.commands.EventDriven' applications, |
|
| a ZConfig component definition for adaptive tasks, and a running shortcut |
|
| called 'EventDriven'. |
|
| |
|
| It should now be possible to do this:: |
|
| |
|
| #!/usr/bin/env peak EventDriven |
|
| |
|
| at the top of a ZConfig file formatted according to the new schema, and |
|
| have it run. There are two periodic tasks that can be configured and |
|
| run from such a file: 'CleanupFiles' and 'URLChecker'. 'CleanupFiles' will |
|
| delete files matching a pattern that are older than a certain age, while |
|
| 'URLChecker' will check to see if the target of a naming system URL is |
|
| up/available/working, and if not, runs a command to restart it. As an |
|
| amusing demo, try specifying a 'file:' URL with a 'shellcmd:touch theFile' |
|
| to recreate the file, then add a 'CleanupFiles' that deletes the file the |
|
| checker looks for. This can be hours (well, minutes) of exciting fun as you |
|
| watch the dueling daemons undoing each others' work. |
|
| |
|
| - Added 'zconfig.schema' URL scheme that loads an enhanced ZConfig schema |
|
| object that can act as a command line interpreter using the 'peak' script. |
|
| |
|
| To use it, run 'peak zconfig.schema:urlToSchema urlOfConfig'. Or, add |
|
| a line like this:: |
|
| |
|
| #!/usr/bin/env peak zconfig.schema:pkgfile:some.package/schema.xml |
|
| |
|
| to the top of a configuration file, and make the configuration file |
|
| executable. Note that the schema specified must convert to an object |
|
| that's usable with the commands bootstrap framework. Also note that |
|
| if you have a local PEAK_CONFIG file, you can add a 'peak.running.shortcuts' |
|
| entry to shorten the URL reference in your #! line. E.g.:: |
|
| |
|
| #!/usr/bin/env peak mySchema |
|
| |
|
| will suffice if you have defined 'peak.running.shortcuts.mySchema' as |
|
| 'naming.LinkRef("zconfig.schema:pkgfile:some.package/schema.xml")'. |
|
| |
|
| There is also a 'peak ZConfig urlOfSchema urlOfConfig' variant, that was |
|
| added to support putting '#!/usr/bin/env peak ZConfig' at the top of |
|
| schema files, but unfortunately that's not valid XML. |
|
| |
|
| - Standardized file-based URL syntaxes (e.g logfiles and lockfiles) to |
|
| follow RFC 1738/2396, and Python 'urllib'. This shouldn't affect much |
|
| besides the canonical forms of the URLs. Added 'pkgfile:some.pkg/filepath' |
|
| URL syntax for ease of referring to files near modules. (A convenience |
|
| intended mainly for referencing ZConfig schemas.) |
|
| |
|
| - Added the UML 1.4 metamodel, and thus the ability to load UML 1.4 |
|
| models encoded in XMI 1.1. |
|
| |
|
| - Added support in the mof2py code generator for "unprefixing" enumerated |
|
| values, so that UML and other metamodels' enumerations work correctly |
|
| when loading from XMI. Also, mof2py no longer emits 'config.setupModule()' |
|
| calls in generated code, as in practice they are not needed. |
|
| |
|
| - Running 'peak test' from the command line is roughly equivalent to running |
|
| 'unittest.py', except that the test suite defaults to the PEAK test suite. |
|
| You can, however run any test suite from the command line with a dotted |
|
| module/attribute path, e.g 'peak test foo.bar.test_suite'. |
|
| |
|
| - 'binding.Acquire()' now accepts a 'default' value argument, and |
|
| 'binding.New()' no longer accepts the 'bindToOwner' flag. |
|
| |
|
| - There is a new 'binding.IComponentKey' interface that is used to implement |
|
| 'IComponent.lookupComponent()'. Now you can implement this interface, |
|
| or create an adapter for it, in order to make an object usable as an |
|
| argument to 'binding.lookupComponent()' - and therefore usable as a key |
|
| for 'binding.bindTo()' or 'binding.bindToSequence()'. Not that it's |
|
| necessarily very useful to do so; you're probably better off simply |
|
| creating a naming scheme. But it might be useful for lookups done |
|
| in the context of classes, since naming schemes aren't usable there. |
|
| (It was actually added in order to factor out all the type testing that |
|
| 'lookupComponent' used to do, so it doesn't matter if it's useful for |
|
| much else.) |
|
| |
|
| - PEAK has been refactored to avoid the use of 'isImplementedBy()' and |
|
| similar introspection, in favor of 'adapt()'. As a result, some |
|
| 'peak.naming' interfaces have changed. This should not affect you |
|
| if you are only subclassing PEAK-provided naming components and not |
|
| implementing these interfaces "from scratch". However, the various |
|
| 'isAddress', 'isAddressClass', 'isResolver', and 'isName' APIs have |
|
| also been removed, as they were based on 'isImplementedBy()'. |
|
| |
|
| - REMOVED ability to use '__implements__' and '__class_implements__' to |
|
| declare support for interfaces. Use 'protocols.advise()' or a related |
|
| API to do this now. The 'protocols' package is available automatically |
|
| from 'peak.api'. |
|
| |
|
| Similarly, the ability to use 'isImplementedBy()' with interfaces declared |
|
| by PEAK is REMOVED. You can still use 'isImplementedBy()' with Zope |
|
| interfaces, of course, but we recommend you switch to 'adapt()', which |
|
| should work with both PEAK and Zope interfaces. |
|
| |
|
| - Replaced all use of 'zope.interface' with 'protocols' package because |
|
| the 'protocols' package: |
|
| |
|
| * is considerably smaller and simpler than 'zope.interface' |
|
| |
|
| * produces Interface objects that can be inspected with the Python |
|
| 'pydoc' and 'help()' tools |
|
| |
|
| * supports and implements the PEP 246 'adapt()' protocol |
|
| |
|
| * transparently supports transitive adaptation - i.e. if adapter AB |
|
| adapts from A to B, and adapter BC adapts from B to C, then an adapt(x,C) |
|
| where 'x' is an 'A', will be implemented as BC(AB(x)). |
|
| |
|
| * Supports "open protocols" that allow you to "superclass" a protocol |
|
| to create a subset protocol; objects that support the first protocol |
|
| will automatically support the subset protocol. For example, if one |
|
| person defines a "dictionary" protocol, someone else can create a |
|
| "read-only dictionary" protocol, and all objects supporting the |
|
| "dictionary protocol" will be considered to implement the "read-only |
|
| dictionary" protocol. |
|
| |
|
| * can interoperate with other interface packages, including Zope's, but |
|
| does not require them |
|
| |
|
| * works with module inheritance (for everything but moduleProvides(), and |
|
| we should get to that by 0.5a2) |
|
| |
|
| * lets you use Interfaces as abstract base classes (i.e., you can |
|
| inherit from an interface and turn it into an implementation, and |
|
| you can define default attribute values or method implementations in |
|
| your interfaces |
|
| |
|
| * Lets you mix interface declarations from any number of frameworks and |
|
| any number of interface types, in a single 'implements()' or |
|
| 'classProvides()' |
|
| |
|
| * uses adaptation as the fundamental approach to dealing with interfaces, |
|
| and avoids the use of 'isImplementedBy()'. In the *rare* case that you |
|
| need to introspect rather than adapt, you can always call adapt() and |
|
| check the result. (But introspection usually means that you're using |
|
| interfaces as a form of metadata; it's better to create an explicit |
|
| interface that provides the metadata you seek, and adapt to that |
|
| interface, than to use interfaces as data.) |
|
| |
|
| Most of these features are unavailable in 'zope.interface', and some have |
|
| been declared by the Zope Pope to be unacceptable or undesirable features |
|
| for Zope interfaces. (Others may be available in some form in future |
|
| versions of Zope X3.) So, we no longer require or distribute |
|
| 'zope.interface'. |
|
| |
|
| - The signatures of the 'getObjectInstance()', 'getStateToBind()', and |
|
| 'getURLContext()' methods in the 'peak.naming' package have changed, to |
|
| place the context or parent component as the first, non-optional argument. |
|
| (If you don't know what these methods are for, you don't need to do anything |
|
| about this, as they are part of the naming package's extensibility |
|
| framework.) |
|
| |
|
| - 'binding.bindTo()' now accepts a 'default=' argument, whose value will be |
|
| used in case of a 'NameNotFound' error. |
|
| |
|
| - DEPRECATED 'naming.ParsedURL'. It will disappear in 0.5 alpha 3 or beta. |
|
| It is replaced by the new 'naming.URL.Base'. The 'naming.URL' package |
|
| provides a new URL parsing framework based on 'peak.model'. Upgrading from |
|
| 'ParsedURL' to 'URL.Base' is trivial for ParsedURL subclasses that used |
|
| only the 'scheme' and 'body' fields, and in fact may not require any |
|
| changes except for the choice of base class. Also, the 'retrieve()' method |
|
| of URLs is deprecated; please begin defining the 'getObjectInstance()' |
|
| method instead. This is to cut down a bit on the number of ways that the |
|
| naming package spells the idea of retrieving something! |
|
| |
|
| For more complex URL classes, the '__init__' methods go away, 'parse' |
|
| methods change slightly, and explicit field definitions (using |
|
| 'model.structField' or similar) are required. See PEAK's 'URL.Base' |
|
| subclasses for examples. There is also a sophisticated parsing and |
|
| formatting framework (see the 'peak.naming.URL' and 'peak.util.fmtparse' |
|
| modules) that can be used in place of the old regex-based approach. |
|
| |
|
| - Added 'peak.util.fmtparse', a parsing and formatting framework, and |
|
| integrated it with 'peak.model' so that any element type can have a |
|
| syntax for parsing from, or formatting to, a string. |
|
| |
|
| - Added 'binding.whenAssembled(...)' as syntax sugar for |
|
| 'binding.Once(...,activateUponAssembly=True)'. |
|
| |
|
| - Removed 'LOG_XYZ' convenience functions from 'peak.api', and refactored |
|
| 'peak.running.logs' to use a PEP 282-like interface, 'running.ILogger'. |
|
| Under the new scheme, messages must be sent to a specific entry point |
|
| (e.g. 'self.logger.warning("foo")'). Components can bind an attribute |
|
| directly to a logger object, or via configuration properties or utilities. |
|
| PEAK components that do logging all define a 'logger' attribute, bound |
|
| to a configuration property in the 'peak.logs' property namespace. By |
|
| a default in 'peak.ini', 'peak.logs.*' is configured to output messages |
|
| of 'WARNING' priority or higher to 'sys.stderr'. |
|
| |
|
| For compatibility with the PEP 282 logging package, a 'logging.logger:' |
|
| URL scheme has been added; looking up the URL '"logging.logger:foo.bar"' |
|
| is equivalent to 'logging.getLogger("foo.bar")', unless the 'logging' |
|
| package is not available, in which case the configuration property |
|
| 'peak.logs.foo.bar' will be looked up in the target context of the |
|
| lookup. Optionally, you can configure the 'logging.logger' URL scheme so |
|
| that it only uses PEAK loggers, and never uses the PEP 282 loggers. |
|
| |
|
| - Added 'binding.metamethod()' wrapper for metaclass methods that might |
|
| not be accessible from their instances if the instances (classes) also |
|
| defined the method for *their* instances. You must now use this wrapper |
|
| on any such metaclass-defined methods, as PEAK no longer works around |
|
| this via the 'x.__class__.foo(x,...)' trick that was used previously. |
|
| In particular, if you have metaclass definitions of 'getParentComponent', |
|
| '_getConfigData', 'getComponentName', or 'notifyUponAssembly', you need |
|
| to wrap them with 'binding.metamethod' now. |
|
| |
|
| - Made 'NOT_GIVEN' and 'NOT_FOUND' recognizable by humans (they 'repr' |
|
| and 'str' to their names) and by Python (they can be pickled, and |
|
| when restored they come back as the same object). |
|
| |
|
| |
|
| Corrected Problems |
|
| |
|
| - Fixed a problem in ZConfig 'schema.dtd'; I used 'PCDATA' where I should've |
|
| used 'CDATA'. |
|
| |
|
| - Fixed a problem with 'binding.supertype()' not working correctly if the MRO |
|
| it was searching contained a "classic" class. Now 'supertype()' skips any |
|
| classic classes it finds. (It probably should be rewritten entirely.) |
|
| |
|
| - Fixed misc. problems with 'fromZConfig()' component constructor |
|
| |
|
| - Fixed source distributions missing essential setup files |
|
| |
|
| - Fixed a problem with assembly events, where a parent component that didn't |
|
| need assembly notification, wouldn't ever notify its children of assembly |
|
| if they requested the notification after the parent had already received |
|
| it. |
|
| |
|
| - Fixed a bug in automatic metaclass generation that caused extra unneeded |
|
| metaclasses to be generated. |
|
| |
|
| - Fixed 'naming.lookup()' and related APIs not setting the parent component |
|
| of created objects without an explicitly supplied 'creationParent' keyword |
|
| argument. This used to "sort of work" when we had implicit configuration |
|
| parents, but was broken when we went "all explicit" for 0.5 alpha 1. |
|
| |
|
| - Fixed a problem where initializing single-valued immutable fields of |
|
| 'peak.model' types did not perform type/value normalization. |
|
| |
|
| - Fixed a problem where bindTo would use the attribute name as the |
|
| default value for a lookup, if the requested name/property/utility |
|
| was not found. |
|
| |
|
| - Fixed 'mof2py' generator script not working |
|
| |
|
| - Fixed model.Element not getting parent component set when passed as a |
|
| constructor argument. |
|
| |
|
| - Fixed property/utility lookups not working correctly on model.* |
|
| objects. |
|
| |
|
| - Fixed IndentedStream generating all-whitespace lines |
|
| |
|
Diff of /PEAK/CHANGES.txt
Parent Directory
| 
Revision Log