Filter GitLab webhook events (SDK) - AWS CodeBuild

Filter GitLab webhook events (SDK)

To use the AWS CodeBuild SDK to filter webhook events, use the filterGroups field in the request syntax of the CreateWebhook or UpdateWebhook API methods. For more information, see WebhookFilter in the CodeBuild API Reference.

For more information about GitLab webhook events, see GitLab webhook events.

To create a webhook filter that triggers a build for pull requests only, insert the following into the request syntax: 

"filterGroups": [
  [
    {
      "type": "EVENT",
      "pattern": "PULL_REQUEST_CREATED, PULL_REQUEST_UPDATED, PULL_REQUEST_MERGED"
    }
  ]
]

To create a webhook filter that triggers a build for specified branches only, use the pattern parameter to specify a regular expression to filter branch names. Using an example of two filter groups, a build is triggered when one or both evaluate to true:

  • The first filter group specifies pull requests that are created or updated on branches with Git reference names that match the regular expression ^refs/heads/main$ and head references that match ^refs/heads/myBranch$.

  • The second filter group specifies push requests on branches with Git reference names that match the regular expression ^refs/heads/myBranch$. 

"filterGroups": [
  [
    {
      "type": "EVENT",
      "pattern": "PULL_REQUEST_CREATED, PULL_REQUEST_UPDATED"
    },
    {
      "type": "HEAD_REF",
      "pattern": "^refs/heads/myBranch$"
    },
    {
      "type": "BASE_REF",
      "pattern": "^refs/heads/main$"
    }
  ],
  [
    {
      "type": "EVENT",
      "pattern": "PUSH"
    },
    {
      "type": "HEAD_REF",
      "pattern": "^refs/heads/myBranch$"
    }
  ]
]

You can use the excludeMatchedPattern parameter to specify which events do not trigger a build. In this example, a build is triggered for all requests except tag events. 

"filterGroups": [
  [
    {
      "type": "EVENT",
      "pattern": "PUSH, PULL_REQUEST_CREATED, PULL_REQUEST_UPDATED, PULL_REQUEST_MERGED"
    },
    {
      "type": "HEAD_REF",
      "pattern": "^refs/tags/.*",
      "excludeMatchedPattern": true
    }
  ]
]

You can create a filter that triggers a build only when a change is made by a GitLab user with account ID actor-account-id.

Note

For information about how to find your GitLab account ID, see https://api.github.com/users/user-name, where user-name is your GitLab user name. 

"filterGroups": [
  [
    {
      "type": "EVENT",
      "pattern": "PUSH, PULL_REQUEST_CREATED, PULL_REQUEST_UPDATED, PULL_REQUEST_MERGED"
    },
    {
      "type": "ACTOR_ACCOUNT_ID",
      "pattern": "actor-account-id"
    }
  ]
]

You can create a filter that triggers a build only when files with names that match the regular expression in the pattern argument change. In this example, the filter group specifies that a build is triggered only when files with a name that matches the regular expression ^buildspec.* change. 

"filterGroups": [
  [
    {
      "type": "EVENT",
      "pattern": "PUSH"
    },
    {
      "type": "FILE_PATH",
      "pattern": "^buildspec.*"
    }
  ]
]

In this example, the filter group specifies that a build is triggered only when files are changed in src or test folders.

"filterGroups": [
    [
        {
            "type": "EVENT", 
            "pattern": "PUSH"
        },
        {
            "type": "FILE_PATH", 
            "pattern": "^src/.+|^test/.+"
        }
    ]
]

You can create a filter that triggers a build only when the head commit message matches the regular expression in the pattern argument. In this example, the filter group specifies that a build is triggered only when the head commit message of the push event matches the regular expression \[CodeBuild\]. 

  "filterGroups": [
    [
      {
        "type": "EVENT",
        "pattern": "PUSH"
      },
      {
        "type": "COMMIT_MESSAGE",
        "pattern": "\[CodeBuild\]"
      }
    ]
  ]