mkbl

When you create an ordinary component (that is, one that contains directories and elements), it includes an initial baseline whose name is of the form component-name_INITIAL. This baseline selects the /main/0 version of the component's root directory and serves as a starting point for successive baselines of the component.

Use the –identical option to create a new baseline for a component that has not been modified. This can be useful in working with several components. You can create new baselines for a set of components regardless of whether they have been modified.

By default, all activities modified since the last baseline was made are captured in new baselines. You can select a subset of activities for inclusion in the baseline. If there are dependencies between the change sets of activities, you may not be able to include only the activity you want; you'll need to include the activities it depends on as well.

A single baseline is created if the selected activities are part of the same component. If an activity modifies more than one component, a new baseline is created for each component it modifies.

The operation of creating a new composite baseline is recursive. That is, the operation first creates baselines of its member components and then creates dependency references to those baselines in the composite. The result is a composite baseline that retains the dependency structure of its predecessor.

You can create or change the dependency relationships for a composite baseline by using the –adepends_on or –ddepends_on options. When a dependency reference to a component is added, a baseline of that component is made, if necessary. These operations apply only to direct members of a composite baseline and do not affect indirect members in a baseline hierarchy. A dropped component can still have a baseline that is lower in the dependency hierarchy.

You can recognize a VOB as a component with the mkcomp command. When you do this, the VOB is given an initial baseline that selects the /main/0 version of the component root directory. However, this baseline does not automatically enable access to files and directories that are already in the VOB.

You can create a new baseline that corresponds to a set of labeled versions in the VOB or one of the VOB's components. To do this, use the –import option. The mkbl command creates a baseline that selects the labeled versions, making them accessible to the UCM project.

Before creating the baseline, be sure that the label is unlocked and ordinary (not global) and that labeled elements are checked in. Once the baseline is created, the label cannot be moved or removed except by privileged users. Be certain the label selects some version of all visible elements.

A baseline identifier is a user-specified baseline name to which a numeric extension is appended, if necessary, to make the baseline name unique in its PVOB. If you have defined a baseline name template for your project, baseline names will be created using that template. For information about defining a baseline name template, see mkproject and chproject.

The exceptions to the above rule are initial baselines and baselines created from a label. The name of an initial baseline is of the form component-name_INITIAL. When you create a baseline by importing a label, the basename is derived from the label's type selector. For example, the label-type selector REL1@/vobs/baz generates a baseline basename of REL1 whose scope is the baz component.

You can choose whether versions of the baseline are to be labeled when the baseline is created. Baselines can be unlabeled, incrementally labeled, or fully labeled. After they are applied, baseline labels cannot be moved.

All baselines record a component's current configuration in a stream, but only labeled baselines can be used to configure other streams (by means of rebase or mkstream).

Choose a labeling scheme that suits your project's structure. Incremental baselines typically can be created more quickly than full baselines.

• For a full baseline, the time required is proportional to the number of elements in the component.
• For an incremental baseline, the time required is proportional to the number of elements changed since the last full baseline.

These options control labeling during baseline creation:

• The –nlabel option, which creates an unlabeled baseline. Unlabeled baselines cannot be used as foundation baselines to configure a stream. They can be used with the diffbl command.
• The –incremental option, which labels versions of elements that have changed since the last full baseline was created.
• The –full option, which creates a baseline by selecting and labeling a version of each element in the component.

Each time when new baselines are made, mkbl checks to see whether any latest baselines are unlabeled. If any are found, mkbl issues a warning and displays the unlabeled baselines. You can change the labeling status for a baseline with the chbl command.

Baselines are marked with a promotion level that signifies the quality of the baseline. When created, a project VOB is assigned an ordered set of promotion levels, one of which is designated the default promotion level, which is the level assigned to new baselines when they are created.

For more information, see setplevel.

Default

Creates one or more event records, with commenting controlled by your .clearcase_profile file (default: –cq). 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.

Default

–all

–com/ponent component-selector[,...]

Specifies the components for which baselines are made.

component-selector is of the form [component:]component-name[@vob-selector], where vob-selector specifies the component's project VOB.

–all

Creates a baseline for each component in the project that has been modified since the last baseline.

–ide/ntical

Creates new baselines for all components, regardless of whether they have been modified.

Default

All activities with changes that are not recorded in the last baselines are recorded in the new baselines.

–act/ivities activity-selector, ...

Specifies a list of activities to include in the new baselines.

activity-selector is of the form [activity:]activity-name[@vob-selector] where vob-selector specifies the activity's project VOB.

You can use this option to include only a subset of the unrecorded changes in the new baselines. A baseline is created for each component that has unrecorded changes in the specified list of activities.

The list of activities must be complete. That is, they must not depend on the inclusion of any other activities. Activity A2 is dependent on activity A1 if they both contain versions of the same element and A2 contains a later version than A1. If the list of activities is incomplete, the operation fails and lists the required activities.

Default

–incremental.

–nla/bel

Specifies that versions for this baseline are not labeled. Unlabeled baselines cannot be used as foundation baselines, but can be used by the diffbl command and labeled later.

–inc/remental

Labels only versions that have changed since the last full baseline was created.

–fu/ll

Labels all versions visible below the component's root directory.

Default

The stream to which the current view is attached.

–vie/w view-tag

Specifies the view from which to create baselines. Baselines are created in the stream that the view is attached to.

For example, if you are working in coyne_dev_view, but want to create a baseline from the configuration specified by the view coyne_integration_view, use –view coyne_integration_view. This option creates a baseline in the project's integration stream that includes all the checked-in versions contained in coyne_integration_view. If you do not specify view-tag, the current view is used.

Default

None.

baseline-root-name

Specifies the root portion of the baseline name. For rules about composing root names, see the cleartool reference page. Also see Baseline names. You are not required to specify a baseline-root-name if it is not included in the baseline name template.

Default

Creates a composite baseline that retains the dependency structure of its predecessor.

–com/ponent component-selector

Specifies the component whose dependency relationship you want to change. The component's currently selected baseline is used as the initial configuration.

–adep/ends_on depend-component-selector[,...]

Adds dependency references to the specified components for the composite baseline.

–ddep/ends_on depend-component-selector[,...]

Drops dependency references to the specified components for the composite baseline.

–nac/t

Makes a baseline only in the component specified by –component.

Default

None.

–imp/ort [ –com/ponent component-selector[,...]] label-type-selector ...

Creates a baseline using versions marked with the specified label-type-selector. The –component option is required when the label type is in a VOB that contains multiple components. The label type must be applied to the component's root directory and to every element below the root directory that you want to include in the component. Baselines are created as successors to the initial baseline. The scope of the label type must be ordinary, not global.

Default

None.

–clone

Create a new baseline by cloning an existing baseline.

new-baseline-name

Specifies the name of a new baseline that is a clone of baseline-root-name.