Question & Answer
Question
How can I create a copy of baselines created prior to the latest baseline for a stream?
Answer
Introduction
The IBM® Rational® ClearCase ® mkbl command supports the -identical option to create a copy of an existing baseline, with the constraint that the baseline to be copied must be the latest baseline on the stream.
IBM Rational ClearCase release 7.0.1.07 introduces a new option to the mkbl command, -clone, that allows you to copy an earlier version of a baseline. This can be useful when one needs to rename an existing baseline to adhere to some standard, for example.
Syntax
The command syntax is:
mkbl -clone [-view view-tag] baseline-root-name new-baseline-name
The -view flag is optional. It allows you to create a clone of the baseline from another stream. The baseline is created on the stream attached to the view-tag.
Examples
Here is an example of how to use the command with a simple sequence of baselines. Consider the time line of a stream as follows:
- BL1
BL2
BL3
BL4
Create a clone of baseline BL1 with the following command:
mkbl -clone BL1 BL1_CLONE The resulting time line for the stream is:
- BL1
BL1_CLONE
BL2
BL3
BL4
The new label BL1_CLONE will be applied to all the versions on which BL1 was applied as a result of the clone operation.
In the case of a composite baseline, the mkbl -clone command does not act recursively and does not create a clone of each member baseline. It creates only the clone of the composite baseline whose clone was requested.
For example, in the case of:
- C1
|___M1
|
|___M2
The clone is created as follows:
- C1_CLONE
|___M1
|
|___M2
In case of Multisite if mkbl -clone is used at one site then the other site where Multisite packets are replayed (the machine having Multisite server) should be on a version not lower than 7.0.1.7/7.1.1 otherwise it will result in unexpected behavior.
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Document Information
Modified date:
16 June 2018
UID
swg21395663