Zulip notifications

The [notify-zulip] option in triagebot.toml can be used to send notifications to Zulip based on the addition/removal of issue/PR labels, or when an issue/PR is closed.

Configuration

The basic configuration is:

# Triggers a zulip notification based on the given label name.
[notify-zulip."label-name"]
# The Zulip stream to post to.
# Can be found by looking for the first number in URLs, e.g. https://rust-lang.zulipchat.com/#narrow/stream/131828-t-compiler
zulip_stream = 245100 # #t-compiler/wg-prioritization/alerts

# The Zulip topic to post to.
# {number} is replaced with the issue/PR number.
# {title} is replaced with the issue/PR title.
topic = "#{number} {title}"

# The message to post when the label is added.
# Supports {number} and {title} substitution.
message_on_add = "Issue #{number} \"{title}\" has been added."

# The message to post when the label is removed.
# Supports {number} and {title} substitution.
message_on_remove = "Issue #{number}'s nomination has been removed. Thanks all for participating!"

# The message to post when the issue/PR is closed and it has the label.
# Supports {number} and {title} substitution.
message_on_close = "Issue #{number} has been closed. Thanks for participating!"

# The message to post when the issue/PR is reopened and it has the label.
# Supports {number} and {title} substitution.
message_on_reopen = "Issue #{number} has been reopened. Pinging @*T-types*."

# The Zulip notification will not be posted unless the issue/PR has all of these labels.
required_labels = ["I-nominated"]