Provides basic weechat deploy hook

This hook providers basic weechat deploy support.  The environment
variables WEECHAT_PEM and WEECHAT_HOME are respected, and otherwise
default to ~/.weechat/ssl/relay.pem and ~/.weechat/ respectively unless
set.

Upon a successful deployment, this script then attempts to issue a
'/relay sslcertkey' to weechat using the fifo plugin when configured
and available.  See script headers for more information.

deploy/weechat.sh

@@ -0,0 +1,61 @@
+#!/usr/bin/env bash
+
+# Simple script to deploy certificates for Weechat relay servers
+# 
+# Configuration:
+# export WEECHAT_PEM (or set in access.conf) to the PEM file you have your weechat client
+# set to load.
+# Optionally configure WEECHAT_HOME if you would like to attempt to reload the certificate
+# on a successful deploy.  
+# This deploy script attempts to guess sane defaults in the absence of either
+
+# If you would like this script to automatically reload this certificate, you must ensure
+# weechat is configured with plugins.var.fifo.fifo = on
+
+# Usage Example: acme.sh --renew --deploy --deploy-hook weechat -d weechat.example.com --force
+
+#returns 0 means success, otherwise error.
+
+########  Public functions #####################
+
+#domain keyfile certfile cafile fullchain
+weechat_deploy() {
+  _cdomain="$1"
+  _ckey="$2"
+  _ccert="$3"
+  _cca="$4"
+  _cfullchain="$5"
+
+  _debug _cdomain "$_cdomain"
+  _debug _ckey "$_ckey"
+  _debug _ccert "$_ccert"
+  _debug _cca "$_cca"
+  _debug _cfullchain "$_cfullchain"
+
+  _info "Deploying $_cdomain to weechat"
+  if [ -z "$WEECHAT_HOME" ]; then
+    _info "WEECHAT_HOME not set, defaulting to ${HOME}/.weechat"
+    WEECHAT_HOME="${HOME}/.weechat"
+  fi
+  if [ -z "$WEECHAT_PEM" ]; then
+    _info "WEECHAT_PEM not set, defaulting to ${HOME}/.weechat/ssl/relay.pem"
+    WEECHAT_PEM="${HOME}/.weechat/ssl/relay.pem"
+  fi
+  if [ -w $WEECHAT_PEM ]; then
+    _info "$WEECHAT_PEM exists and is writable, backing up and overwriting"
+    cp $WEECHAT_PEM $WEECHAT_PEM.bak
+    cat $_ckey $_cfullchain > $WEECHAT_PEM
+    _info "Deployed $_cdomain to weechat"
+    _debug "Attempting to issue /relay sslcertky to weechat via fifo"
+    for fifo in $WEECHAT_HOME/weechat_fifo_*
+      do
+        _info "Issuing reload to weechat via $fifo"
+        printf '%b' '*/relay sslcertkey\n' > "$fifo"
+      done
+    exit 0
+  else
+    _err "$WEECHAT_PEM does not exist or is not writable.  If this is a first run \
+please issue \'touch $WEECHAT_PEM\' and retry."
+    exit 1
+  fi
+}