an integration stream in a project:
a development stream in a project or a stream:
The mkstream command creates a stream for use with a UCM project. A stream consists of a name, a set of baselines that configure the stream, and a record of the set of activities associated with the stream.
There are two kinds of streams with UCM projects:
- As a shared work area for integrating work from different sources. This is called the project's integration stream. Each project has exactly one integration stream.
- As an isolated work area for use in code development. This is called a development stream. A project can have any number of development streams. A development stream can have child streams. There is no limitation on the number of nested levels of streams.
To create an integration stream, you must specify its project. Note that a project's integration stream must be present before a development stream can be created.
To create a development stream, you must specify a stream as its parent. Specifying a project is equivalent to specifying the project's integration stream. By default, the development stream delivers to the integration stream and rebases from recommended baselines of the integration stream. If you specify a development stream as its parent, the stream becomes the child of that development stream and delivers to and rebases from its parent.
Optionally, you can assign the stream a set of foundation baselines. Foundation baselines specify a stream's configuration by selecting the file and directory versions that are accessible in the stream.
Streams are accessed through views (see mkview –stream). A stream can have more than one view attached to it.
You can set or unset policies for integration streams or development streams. Note that the project's policy settings take precedence over the stream's settings, unless –spolicy is used in the project to allow individual streams to control the policy. Table 9 describes these policies and lists the keywords used to set them. For more information about setting policies, see Managing Software Projects.
|Skip permission checking to allow any user to modify a stream with chstream or a baseline with chbl.||POLICY_CHSTREAM_UNRESTRICTED|
|Require a development stream to be based on the current recommended baselines of its parent stream before it can deliver changes to the parent stream.||POLICY_DELIVER_REQUIRE_REBASE|
|Do not allow delivery from a development stream that has checkouts.||POLICY_DELIVER_NCO_DEVSTR|
|Allow a deliver operation from a stream in the same project to include changes from the stream's foundation baselines.||POLICY_INTRAPROJECT_DELIVER _FOUNDATION_CHANGES|
|Allow a deliver operation from a stream in the same project to contain changes in components that are not included in the target stream's configuration. The changes in the missing components are not delivered.1||POLICY_INTRAPROJECT_DELIVER _ALLOW_MISSING_TGTCOMPS|
|Allow a stream from a different project to deliver changes from its stream to this stream.||POLICY_INTERPROJECT_DELIVER|
|Allow a deliver operation from a stream in a different project to include changes from the stream's foundation baselines. This policy is ignored if interproject delivery is disabled.||POLICY_INTERPROJECT_DELIVER _FOUNDATION_CHANGES|
|Require a deliver operation from a stream in a different project to deliver changes in all components. This policy is ignored if interproject delivery is disabled.[a]||POLICY_INTERPROJECT_DELIVER _REQUIRE_TGTCOMP_VISIBILITY|
|Allow a deliver operation from a stream in a different project to contain changes in components that are not modifiable in the target stream's configuration. The changes in the nonmodifiable components are not delivered. This policy is ignored if interproject delivery is disabled.||POLICY_INTERPROJECT_DELIVER _ALLOW_NONMOD_TGTCOMPS|
Defaults are different for intraproject and interproject deliver operations.
To provide some users with read-only access to a set of baselines, you can create a special type of development stream with the option –readonly. You cannot deliver to or from this stream, but you can rebase it. Read-Only streams are not restricted by the normal rebase rules. In the view attached to a Read-Only stream, you can create DOs and other view-private files, but you cannot make any changes to components.
To create a read-only stream, your UCM VOBs and PVOBs must be at feature level 3 or greater.
No special identity required.
An error occurs if there are locks on any of the following objects: the UCM project VOB, the project, the parent stream (for development streams).
OPTIONS AND ARGUMENTS
Specifying the Stream's Role in the Project
Specifying the Stream's Parent
- –in project-selector | stream-selector
- Specifies the stream's parent. For an
integration stream, it must be a project. For a development stream, it can
be an integration stream or another development stream.
project-selector is of the form [project:]project-name[@vob-selector], where vob-selector specifies the project's project VOB.
stream-selector is of the form [stream:]stream-name[@vob-selector], where vob-selector specifies the stream's project VOB.
Event Records and Comments
- Creates one or more event records,
with commenting controlled by your .clearcase_profile file
(default: –c). See the comments reference
page. Comments can be edited with chevent.
- –c·omment comment | –cfi·le comment-file-pname |–cq·uery | –cqe·ach | –nc·omment
- Overrides the default with the option you specify. See the comments reference page.
- The stream's configuration is empty
(that is, it has no foundation baselines).
- –bas·eline baseline-selector[,... ]
- Specifies one or more baselines to use
as the stream's initial configuration—you can subsequently use rebase to change the stream's configuration.
baseline-selector is of the form [baseline:]baseline-name[@vob-selector], where vob-selector specifies the baseline's project VOB.
The following restrictions apply to the specified baselines:
a development stream, all foundation baselines must be recommended baselines
in its parent stream or baselines created in the project's integration stream.
an integration stream, all foundation baselines must be either baselines created
in other projects' integration streams, or be imported or initial baselines.
You cannot use baselines created in development streams.
- For a development stream, all foundation baselines must be recommended baselines in its parent stream or baselines created in the project's integration stream.
Setting Stream Policy
Setting the Default Deliver Target for Integration Streams Only
- –tar·get stream-selector
- Specify the default deliver stream of
an integration stream. The target must be a stream in a different project
and mastered in the local replica.
stream-selector is of the form [stream:]stream-name[@vob-selector] and wherevob-selector specifies the project VOB of a different project.
Creating a Read-Only Stream
Specifying the Stream Name
- A generated name.
- stream-selector ...
- Specifies a stream name.
You can specify the stream as a simple name or as an object selector of the form [stream:]name@vob-selector, where vob-selector specifies a project VOB (see the cleartool reference page). If you specify a simple name and the current directory is not a project VOB, this command assumes the stream resides in the project VOB that is associated with the current view. If the current directory is a project VOB, that project VOB is the context for identifying the stream.
The stream name must be unique within the PVOB. All UCM objects share the same namespace. You'll get an error if the name you provide collides with the name of an existing UCM object, for example, a project.
The UNIX examples in this section are written for use in csh. If you use another shell, you may need to use different quoting and escaping conventions.
The Windows examples that include wildcards or quoting are written for use in cleartool interactive mode. If you use cleartool single-command mode, you may need to change the wildcards and quoting to make your command interpreter process the command appropriately.
In cleartool single-command mode, cmd-context represents the UNIX shell or Windows command interpreter prompt, followed by the cleartool command. In cleartool interactive mode, cmd-context represents the interactive cleartool prompt.
Note: In the UNIX examples that follow, arguments and output that show multicomponent VOB tags are not applicable to ClearCase LT, which recognizes only single-component VOB tags. In this manual, a multicomponent VOB tag is by convention a two-component VOB tag of the form /vobs/vob-tag-leaf—for example, /vobs/src. A single-component VOB tag consists of a leaf only—for example, /src. In all other respects, the examples are valid for ClearCase LT.
- Create a development stream for the webo project.
- Create an integration stream.
a project. This example shows the sequence of commands to follow to join a
- Find the project-selector for the project you want to join. For example:
- Create your development stream. For example:
a view attached to your development stream:
cmd-context mkview -stream chris_webo_dev@/vobs/webo_pvob \
-tag chris_webo_dev /export/views/chris_webo_dev.vws
Host-local path: venus:/export/views/chris_webo_dev.vws
Global path: /net/venus/export/views/chris_webo_dev.vws
It has the following rights:
User : chris : rwx
Group: user : rwx
Other: : r-x
Attached view to stream "chris_webo_dev".
- Create a view attached to the project's integration stream: