How To Download A Patch From Gerrit ((new))
The command will look similar to the fetch command but ends with git cherry-pick FETCH_HEAD. This takes the specific commit from the Gerrit patch and attempts to apply it as a new commit on your current branch. Be aware that if your local branch has diverged significantly from the patch's base, you may encounter merge conflicts that need to be resolved manually. Downloading via the HTTP API
Sometimes you don't want to switch your entire workspace to the patch, but rather apply the changes on top of your existing work. In this case, use the Cherry-Pick option from the Gerrit Download menu.
For advanced users or tool integrations, Gerrit offers a REST API. You can download the patch content as a base64-encoded string or a bundle by hitting the appropriate endpoint. Usually, this involves a GET request to /changes/{change-id}/revisions/{revision-id}/patch. While this isn't the standard way for a developer to grab a patch for daily work, it is the backbone for many third-party GUI clients and IDE plugins that handle Gerrit integration. how to download a patch from gerrit
The change number is the unique ID found in the Gerrit URL. For example, if you want to download change 12345, you would run git review -d 12345. The tool will automatically fetch the latest patch set and create a local branch named after the change, allowing you to start working or testing immediately without hunting for refspecs. Manual Download via Refspec
To use this method, navigate to the change page in your browser. Look for the Download button or the patch set dropdown menu. Gerrit typically provides a list of commands, including Checkout, Cherry-Pick, and Pull. Selecting Checkout will give you a command that looks like git fetch origin refs/changes/xx/xxxx/x && git checkout FETCH_HEAD. Copy this string and paste it into your terminal within your local repository. This command fetches the specific patch and moves your local HEAD to that state. Using the Gerrit CLI with git-review The command will look similar to the fetch
For developers who interact with Gerrit frequently, the git-review tool simplifies the process significantly. This command-line utility automates the manual fetching process. Once you have the tool installed and configured, you can download a patch by simply typing git review -d [change-number].
The most common way to download a patch is using the fetch command provided directly in the Gerrit web interface. This method ensures you get the exact refspec for the specific patch set you want to review. Downloading via the HTTP API Sometimes you don't
Downloading a patch from Gerrit is a fundamental skill for developers working with Git-based code reviews. Whether you need to test a colleague's changes locally or continue work on a specific revision, Gerrit provides several methods to pull code into your local environment. The Fetch Command Method
If you are looking for patch set 3 of change 54321, the ref would be refs/changes/21/54321/3. You can download this by running git fetch origin refs/changes/21/54321/3. After fetching, you can see the changes by checking out FETCH_HEAD or merging it into your current branch. This method is particularly useful for automation scripts or CI/CD pipelines where web interaction isn't possible. Cherry-Picking a Patch
