Customize branch names in Tasks

Hi mr.cone ! 

Sorry for the long reply. Yes, we do have com.intellij.tasks.impl.TaskManagerImpl.Config#branchNameFormat template for the branch name field. So you can customize it using velocity templates by setting this field's value somewhere in your plugin. Or, you can use a more flexible way to achieve this.

- Implement the com.intellij.tasks.CommitPlaceholderProvider interface in a similar way:

class CustomNameCommitPlaceholder : CommitPlaceholderProvider {

	override fun getPlaceholders(repository: TaskRepository?): Array<String> {
		return arrayOf(MY_CUSTOM_BRANCH_NAME_PLACEHOLDER)
	}

	override fun getPlaceholderValue(task: LocalTask, placeholder: String): String? {
		if (placeholder == MY_CUSTOM_BRANCH_NAME_PLACEHOLDER) {
			return task.summary.uppercase(Locale.getDefault()) //here you can use all task properties to form name that you need
		}
		return null
	}

	override fun getPlaceholderDescription(placeholder: String): String? = null

	companion object {
		const val MY_CUSTOM_BRANCH_NAME_PLACEHOLDER = "CUSTOM_BRANCH_NAME"
	}
}

- Register tasks.commitPlaceholderProvider in your plugin.xml under the com.intellij namespace.

<extensions defaultExtensionNs="com.intellij">
	<tasks.commitPlaceholderProvider implementation="com.intellij.tasks.CustomNameCommitPlaceholder"/>
	...

- Manually replace ${id} placeholder with your own (we need to tell IDE to use our placeholder instead of the default one).

myTaskManager.getState().branchNameFormat = "${" + CustomNameCommitPlaceholder.MY_CUSTOM_BRANCH_NAME_PLACEHOLDER + "}"; 

You can do it on IDE startup or in other places.

And that's it. Now you can override branch naming rules as per your wish.