Colorize logs

Move logs into a dedicated plugin.

plugins/logs/commands

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
+source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
+source "$PLUGIN_AVAILABLE_PATH/config/functions"
+source "$PLUGIN_AVAILABLE_PATH/nginx-vhosts/functions"
+
+case "$1" in
+  logs)
+    [[ -z $2 ]] && dokku_log_fail "Please specify an app to run the command on"
+    APP="$2"; verify_app_name "$2"
+    APP_ROOT="$DOKKU_ROOT/$APP"
+    COLORS=(36 33 32 35 31)
+
+    if (is_deployed "$APP"); then
+      CONTAINERS=("$APP_ROOT"/CONTAINER.*)
+      if [[ $3 == "-t" ]]; then
+        DOKKU_LOGS_ARGS="--follow --tail 100"
+      else
+        DOKKU_LOGS_ARGS="--tail 100"
+      fi
+      ((MAX_INDEX=${#CONTAINERS[*]} - 1)) || true
+      for i in ${!CONTAINERS[*]}; do
+        DYNO=$(echo "${CONTAINERS[i]}" | sed -r 's/.*CONTAINER\.(.*)/\1/')
+        CID=$(< "${CONTAINERS[i]}")
+        COLOR=${COLORS[i % ${#COLORS[*]}]}
+        DOKKU_LOGS_CMD+="(docker logs -t $DOKKU_LOGS_ARGS $CID 2>&1 | sed -r 's/^([^Z]+Z )/\x1b[${COLOR}m\1$APP[$DYNO]:\x1b[0m /gm')"
+        if [[ $i != "$MAX_INDEX" ]]; then
+          DOKKU_LOGS_CMD+="& "
+        else
+          DOKKU_LOGS_CMD+="; "
+        fi
+      done
+      bash -c "($DOKKU_LOGS_CMD)"
+    else
+      echo "Application's container not found"
+    fi
+    ;;
+
+  help)
+    cat<<EOF
+    logs <app> [-t], Show the last logs for an application (-t follows)
+EOF
+    ;;
+
+  *)
+    exit $DOKKU_NOT_IMPLEMENTED_EXIT
+    ;;
+
+esac

plugins/logs/plugin.toml

@@ -0,0 +1,4 @@
+[plugin]
+description = "dokku core logs plugin"
+version = "0.4.0"
+[plugin.config]