Add better error handling on Zulip (#1589)

* zulip: Treat unknown errors with a 10-second backoff.

An unknown error (including an unauthorized error) would fall through
with no calls to time.Sleep, resulting in hammering the server as
quickly as possible.

Add a 10-second sleep in the default error case.  The heartbeat is
left with no explicit sleep, but all other codepaths now contain one.

* version: Move version information into a separate package.

This will allow it to be accessed by other sections of the code.

* zulip: Use the matterbridge version in the user-agent.

Co-authored-by: Wim <wim@42.be>

1 files changed, 6 insertions, 0 deletions

diff --git a/version/version.go b/version/version.go
new file mode 100644
index 00000000..19f3fa3a
--- /dev/null
+++ b/version/version.go
@@ -0,0 +1,6 @@
+package version
+
+var (
+	Release = "1.23.1-dev"
+	GitHash string
+)