I have already done a preliminary review for you, and I hope to help you do a better job.

Based on the pull request title and description, it appears that the changes in this pull request enable ccache save in merged pipelines. The changes involve modifying the merged_build.groovy and merged_unit_test.groovy files to set the read_only flag to false.

There do not seem to be any obvious potential problems with these changes, as they are relatively straightforward. However, it would be helpful to confirm that enabling ccache does not negatively impact the build process, and that the read_only flag is being set correctly.

One suggestion to improve this pull request would be to provide more context on why enabling ccache is important and how it benefits the build process. This would help reviewers better understand the reasoning behind the changes and ensure that they are necessary.

Another suggestion would be to provide some testing or benchmarks to show that the changes do indeed improve the build process and do not introduce any new issues. This would help to ensure that the changes are thoroughly tested and validated before being merged.

Overall, the changes in this pull request appear to be straightforward, and it would be helpful to provide more context and testing to ensure that they are necessary and do not introduce any new issues.

I have already done a preliminary review for you, and I hope to help you do a better job.

Based on the pull request title and description, the proposed changes aim to enable ccache save in merged pipelines. The diff shows that the ccache's read-only flag has been set to false, indicating that the cache can be updated. Additionally, a step has been added to upload the ccache.tar file to the Jenkins agent after it gets generated.

There are no apparent issues with the changes proposed in this pull request. However, it would be better if the reviewer could verify that the modifications made in this pull request do not affect other processes that might be using ccache. Also, the reviewer could suggest adding documentation to the pipeline to explain how the ccache works and how to use it.

In terms of fixing suggestions, a couple of things come to mind. Firstly, the reviewer could suggest adding some comments to explain the purpose of the changes made in the pull request. Secondly, the reviewer could suggest creating a separate branch to test the changes before merging them into the main branch.

[APPROVALNOTIFIER] This PR is APPROVED

Approval requirements bypassed by manually added approval.

This pull-request has been approved by:

The full list of commands accepted by this bot can be found here.

The pull request process is described here