Source code file content
17376567 Unable to use pkgrecv - failing with [Errno 22] Invalid argument
Size: 7596 bytes, 1 line
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.. Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
Modifying Package Manifests Programmatically
This chapter explains how package manifests can be machine edited to permit the
automated annotation and checking of package manifests.
*Chapter 4* covers the basics for how to publish packages. These techniques are
all that is necessary to publish a package, but when publishing a large package,
a large number of packages, or publishing packages over a period of time, there
can be aspects which involve a significant time commitment for doing repetitive
For example, one rule that's used when publishing Oracle Solaris is that all
kernel modules should be tagged as requiring a reboot.
One option would be to impose this constraint through human examination and
intervention, but that would be costly and likely error prone.
A second option would be to write a script or program that would handle tagging
these actions. The difficulty here is that to be sure the program tagged
actions correctly, it would need to parse the actions. This can certainly be
done, but it duplicates a lot of functionality already in the IPS framework.
The third, and best, option is to use |pkgmogrify|, provided by IPS, to
transform the package manifests in repeatable ways.
There are two types of rules |pkgmogrify| understands, transform and include.
Transform rules are used to modify actions. Include rules cause other
files to be processed.
When publishing Oracle Solaris, we made the assumption that all files delivering
in a subdirectory named "``kernel``" should be treated as kernel modules. This
is the rule used to do the tagging::
<transform file path=.*kernel/.+ -> default reboot-needed true>
* The rule is enclosed with ‘``<``’ and ‘``>``’. The portion of the rule to
the left of the ‘``->``’ is the selection section or matching section. The
portion to the right of the ‘``->``’ is the execution section of the
* ‘``transform``’ is the type of the rule
* ‘``file``’ means this rule is for ``file`` actions
* ‘``path=.*kernel/.+``’ means that only file actions with a path attribute
that matches the regular expression ‘``.*kernel/.+``’ are transformed
* ‘``default``’ means that what follows should be added to a matching action
unless a value for the attribute has already been set
* ‘``reboot-needed``’ is the attribute being set
* ‘``true``’ is the value of the attribute
The selection or matching section of a transform rule can restrict by action
type and by action attribute values. The |pkgmogrify| man page goes into detail
about how these matching rules work, but the typical uses are for selecting
actions which deliver to certain areas of the file system.
.. raw:: pdf
For example, a rule that began like this
<transform file dir link hardlink path=usr/bin.\* -> *[operation]*>
could be used to ensure that ``usr/bin`` and everything delivered inside of it
defaulted to the correct user or group. There is a long list of operations
which |pkgmogrify| can perform, detailed in the man page, which enable a package
developer to programmatically add, remove, set, and edit actions' attributes as
well as add and remove entire actions.
Include rules enable transforms to be spread across multiple files and subsets
reused by different manifests. Suppose a developer needs to deliver two
packages: A and B. Both packages should have their ``source-url`` set to the
same url, but only package B should have its files in ``/etc`` set to be
In the manifest for package A, an include rule which pulls in the file with the
``source-url`` transform should be added. In package B, an include rule which
pulls in the file containing the file ``group`` setting transform should be
Finally, an include rule which pulls in the file with the ``source-url``
transform should be added to either package B or the file with the transform
that sets the group.
Transforms are applied in the order in which they are encountered in a file.
The ordering can be used to simplify the matching portions of transforms.
Suppose all files delivered in ``/foo`` should have a default group of ``sys``,
except those delivered in ``/foo/bar``, which should have a default group of
It's certainly possible to write a complex regular expression which matches all
paths that begin with ``/foo``, except those that begin with ``/foo/bar``. Using
the ordering of transforms makes it much simpler.
When ordering default transforms, always go from most specific to most general.
Otherwise the latter rules will never be used.
In this case, the two rules would look like this::
<transform file path=foo/bar/.* -> default group bin>
<transform file path=foo/.* -> default group sys>
Using transforms to add an action using the matching described above would be
difficult since the package developer would need to find a pattern which matched
each package delivered once and only once.
|pkgmogrify| creates synthetic actions to help with this issue. As |pkgmogrify|
processes manifests, for each manifest that sets the ``pkg.fmri`` attribute,
a synthetic *pkg action* is created by |pkgmogrify|. The package developer can
match against the ``pkg`` action as if it was actually in the manifest.
For example, suppose a package developer wanted to add to every package an
action containing the website (foo.com) where the source code for the delivered
software can be found. The following transform accomplishes that::
<transform pkg -> emit set info.source-url=http://foo.com>
.. raw:: pdf
As a convenience to developers, a set of the transforms that were used when
packaging Oracle Solaris itself are available in ``/usr/share/pkg/transforms``.
At the time of writing, these are:
Sets ``facet.devel`` on ``*.h`` header files delivered to
``/usr/.*/include``, archive and lint libraries, ``pkg-config(1)`` data
files, and ``autoconf(1)`` macros.
Sets a variety of ``facet.doc.*`` facets on documentation files.
Sets a variety of ``facet.locale.*`` facets on files which are
Adds a ``restart_fmri`` actuator pointing to the
``svc:/system/manifest-import:default`` on any packaged SMF manifests
so that the system will import that manifest after the package is