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Automated: Migrate {target_path} from gsutil to gcloud storage

This CL is part of the on going effort to migrate from the legacy gsutil tool to the new and improved gcloud storage command-line interface.
gcloud storage is the recommended and modern tool for interacting with Google Cloud Storage, offering better performance, unified authentication, and a more consistent command structure with other gcloud components. 🚀

Automation Details

This change was generated automatically by an agent that targets users of gsutil.
The transformations applied are based on the gsutil to gcloud storage migration guide.

⚠️ Action Required: Please Review and Test Carefully

While we have based the automation on the migration guide, every use case is unique.
It is crucial that you thoroughly test these changes in environments appropriate to your use-case before merging.
Be aware of potential differences between gsutil and gcloud storage that could impact your workflows.
For instance, the structure of command output may have changed, requiring updates to any scripts that parse it. Similarly, command behavior can differ subtly; the gcloud storage rsync command has a different file deletion logic than gsutil rsync, which could lead to unintended file deletions.

Our migration guides can help guide you through a list of mappings and some notable differences between the two tools.

Standard presubmit tests are run as part of this CL's workflow. If you need to target an additional test workflow or require assistance with testing, please let us know.

Please verify that all your Cloud Storage operations continue to work as expected to avoid any potential disruptions in production.

Support and Collaboration

The GCS CLI team is here to help! If you encounter any issues, have a complex use case that this automated change doesn't cover, or face any other blockers, please don't hesitate to reach out.
We are happy to work with you to test and adjust these changes as needed.

Contact: [email protected]

We appreciate your partnership in this important migration effort!

#gsutil-migration

@bhandarivijay-png bhandarivijay-png requested review from a team as code owners January 9, 2026 09:36
@bhandarivijay-png
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Hi @tmatsuo, Can we get your review on this PR? Thanks!

@product-auto-label product-auto-label bot added the samples Issues that are directly related to samples. label Jan 9, 2026
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Summary of Changes

Hello @bhandarivijay-png, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request automates the migration of legacy gsutil commands to the modern gcloud storage command-line interface within the scripts/prepare-testing-project.sh script. This change aligns the project's Cloud Storage interactions with Google's recommended tooling, which provides enhanced performance, streamlined authentication, and a more consistent user experience across Google Cloud services. The update ensures that the script for preparing testing environments utilizes the latest and most efficient methods for managing Cloud Storage resources.

Highlights

  • Migration to gcloud storage: Replaced gsutil commands with their gcloud storage equivalents for creating buckets, setting default ACLs, and copying files within the scripts/prepare-testing-project.sh script.
  • Bucket Creation: The gsutil mb command was updated to gcloud storage buckets create for creating new Cloud Storage buckets.
  • Default ACL Configuration: The gsutil defacl set public-read command was replaced with gcloud storage buckets update --predefined-default-object-acl=public-read to configure default object ACLs.
  • File Copy Operations: All instances of gsutil cp for copying files to Cloud Storage were migrated to gcloud storage cp.
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Code Review

This pull request automates the migration from gsutil to gcloud storage commands. The changes are generally correct and follow the migration guide. I've found one opportunity for improvement where two gcloud storage commands can be combined into a single, more efficient command for creating a bucket and setting its default object ACL.

Comment on lines +24 to +25
gcloud storage buckets create gs://$GCLOUD_PROJECT
gcloud storage buckets update gs://$GCLOUD_PROJECT --predefined-default-object-acl=public-read
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medium

For efficiency, you can combine these two commands into a single gcloud storage buckets create command by using the --predefined-default-object-acl flag during bucket creation. This reduces the number of API calls from two to one.

Suggested change
gcloud storage buckets create gs://$GCLOUD_PROJECT
gcloud storage buckets update gs://$GCLOUD_PROJECT --predefined-default-object-acl=public-read
gcloud storage buckets create gs://$GCLOUD_PROJECT --predefined-default-object-acl=public-read

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