# 2.5.15.3. BuildSetStatusGenerator

class buildbot.reporters.BuildSetStatusGenerator

This report generator sends a message about builds in a buildset.

Message formatters are invoked for each matching build in the buildset. The collected messages are then joined and sent as a single message. `BuildStatusGenerator` report generator uses the same message generation logic, but a single, not multiple builds.

In case of multiple builds, the following algorithm is used to build the final message:

> - message body is merged from bodies provided by message formatters for the builds. If message bodies are lists or strings, then the result is simple concatenation. If the type is different or there is type mismatch, then mismatching messages are ignored.

> - message subject is taken from the first build for which message formatter a subject.

> - extra information is merged from the information dictionaries provided by message formatters. Note that extra information is specified as dictionary of dictionaries. Two root dictionaries are merged by merging child dictionaries. Values in merged child dictionaries that conflict (i.e. correspond to the same keys) are resolved by taking the value of the first build for which it is provided.

The following parameters are supported:

`subject`

  (string, optional).

  Deprecated since Buildbot 3.5. Please use the `subject` argument of the `message_formatter` passed to the generator.

  A string to be used as the subject line of the message. `%(builder)s` will be replaced with the name of the builder which provoked the message. `%(result)s` will be replaced with the name of the result of the build. `%(title)s` and `%(projectName)s` will be replaced with the title of the Buildbot instance.

`mode`

  (list of strings or a string, optional). Defines the cases when a message should be sent. Only information about builds that matched the `mode` will be included. There are two strings which can be used as shortcuts instead of the full lists.

  The possible shortcuts are:

  `all`

    Send message for all cases. Equivalent to `('change', 'failing', 'passing', 'problem', 'warnings', 'exception')`.

  `warnings`

    Equivalent to `('warnings', 'failing')`.

  If the argument is list of strings, it must be a combination of:

  `cancelled`

    Include builds which were cancelled.

  `change`

    Include builds which change status.

  `failing`

    Include builds which fail.

  `passing`

    Include builds which succeed.

  `problem`

    Include a build which failed when the previous build has passed.

  `warnings`

    Include builds which generate warnings.

  `exception`

    Include builds which generate exceptions.

  Defaults to `('failing', 'passing', 'warnings')`.

`builders`

  (list of strings, optional). A list of builder names to serve build status information for. Defaults to `None` (all builds). Use either builders or tags, but not both.

`tags`

  (list of strings, optional). A list of tag names to serve build status information for. Defaults to `None` (all tags). Use either builders or tags, but not both.

`schedulers`

  (list of strings, optional). A list of scheduler names to serve build status information for. Defaults to `None` (all schedulers).

`branches`

  (list of strings, optional). A list of branch names to serve build status information for. Defaults to `None` (all branches).

`add_logs`

  (boolean or a list of strings, optional). (deprecated, set the `want_logs_content` of the passed `message_formatter`). If `True`, include all build logs as attachments to the messages. These can be quite large. This can also be set to a list of log names to send a subset of the logs. Defaults to `False`.

`add_patch`

  (boolean, optional). If `True`, include the patch content if a patch was present. Patches are usually used on a `Try` server. Defaults to `False`.

`message_formatter`

  (optional, instance of `reporters.MessageFormatter`) This is an optional instance of the `reporters.MessageFormatter` class that can be used to generate a custom message.