chore: keep config files in sync

.pre-commit-config.yaml

@@ -70,3 +70,11 @@ repos:
         pass_filenames: false
         language: script
         files: setup.py$
+
+      - id: config.yml
+        name: config.yml
+        description: Update config files
+        entry: tools/update-config-files.sh
+        pass_filenames: false
+        language: script
+        files: ^installer/config.yml$

tools/update-config-files.sh

@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+
+# Keep configuration files in sync with installer/config.yml.
+
+set -u
+
+error() {
+  echo >&2 "error: $*"
+  exit 1
+}
+
+command -v ed > /dev/null || error "ed command not found!"
+
+CONFIG_ORIG_FILEPATH="installer/config.yml"
+
+# set_config <value> <key...>
+set_config() {
+  value="${1}" && shift
+
+  # Build sed query
+  query="/^${1}:/\n"
+  while [[ $# -gt 1 ]]; do
+    shift
+    query+="/${1}:/\n"
+  done
+  query+="s|\(${1}:\).*|\1 ${value}|\n"
+  query+="wq"
+
+  echo -e "$query" | ed --quiet "$CONFIG_FILEPATH" > /dev/null
+}
+
+set_docker_config() {
+  set_config "postgres" database host
+  set_config "rabbitmq" rabbitmq host
+  set_config "liquidsoap" playout liquidsoap_host
+  set_config "0.0.0.0" liquidsoap server_listen_address
+  set_config "icecast" stream outputs .default_icecast_output host
+}
+
+CONFIG_FILEPATH="docker/config.yml"
+cp "$CONFIG_ORIG_FILEPATH" "$CONFIG_FILEPATH"
+
+set_docker_config
+
+CONFIG_FILEPATH="docker/example/config.yml"
+cp "$CONFIG_ORIG_FILEPATH" "$CONFIG_FILEPATH"
+
+set_docker_config
+set_config "http://localhost:8080" general public_url
+set_config "some_secret_api_key" general api_key