subcommand restructure and bashstyle refactor. closes #1579

plugins/logs/subcommands/default

@@ -0,0 +1,65 @@
+#!/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/logs/functions"
+
+logs_default_cmd() {
+  local desc="shows the last logs for an app via command line"
+  local cmd="logs"
+  [[ -z $2 ]] && dokku_log_fail "Please specify an app to run the command on"
+  local APP="$2"; verify_app_name "$2"
+  local APP_ROOT="$DOKKU_ROOT/$APP"
+  local COLORS=(36 33 32 35 31)
+
+  if ! (is_deployed "$APP"); then
+    echo "Application's container not found"
+    exit 1
+  fi
+
+  shift 2;
+  local TEMP=$(getopt -o htqn:p: --long help,tail,quiet,num:,ps: -n 'dokku logs' -- "$@")
+  if [[ $? != 0 ]]; then usage >&2 ; exit 1 ; fi
+  eval set -- "$TEMP"
+
+  local DOKKU_LOGS_LINE_NUMBERS="100"
+  while true; do
+      case "$1" in
+          -t|--tail) local DOKKU_LOGS_ARGS+="--follow "; shift ;;
+          -n|--num) local DOKKU_LOGS_LINE_NUMBERS="$2"; shift 2 ;;
+          -p|--ps) local DOKKU_LOGS_ONLY_PROCESS="$2"; shift 2 ;;
+          -q|--quiet) local DOKKU_LOGS_NO_PRETTY_PRINT="true"; shift ;;
+          --) shift; break ;;
+          *) echo "Internal error"; exit 1;;
+      esac
+  done
+
+  if [[ -n $DOKKU_LOGS_ONLY_PROCESS ]]; then
+    local CONTAINERS=("$APP_ROOT/CONTAINER.$DOKKU_LOGS_ONLY_PROCESS".*)
+  else
+    local CONTAINERS=("$APP_ROOT"/CONTAINER.*)
+  fi
+  [[ -z $(stat -t "${CONTAINERS[0]}" 2>/dev/null) ]] && exit 0
+
+  local DOKKU_LOGS_ARGS+="--tail $DOKKU_LOGS_LINE_NUMBERS"
+  ((MAX_INDEX=${#CONTAINERS[*]} - 1)) || true
+  for i in ${!CONTAINERS[*]}; do
+    local DYNO=$(echo "${CONTAINERS[i]}" | sed -r 's/.*CONTAINER\.(.*)/\1/')
+    local CID=$(< "${CONTAINERS[i]}")
+    local COLOR=${COLORS[i % ${#COLORS[*]}]}
+    if [[ $DOKKU_LOGS_NO_PRETTY_PRINT == "true" ]]; then
+      local DOKKU_LOGS_CMD+="(docker logs $DOKKU_LOGS_ARGS $CID 2>&1)"
+    else
+      local DOKKU_LOGS_PRETTY_PRINT_CMD="sed -r 's/^([^Z]+Z )/\x1b[${COLOR}m\1app[$DYNO]:\x1b[0m /gm'"
+      local DOKKU_LOGS_CMD+="(docker logs -t $DOKKU_LOGS_ARGS $CID 2>&1 | $DOKKU_LOGS_PRETTY_PRINT_CMD)"
+    fi
+    if [[ $i != "$MAX_INDEX" ]]; then
+      local DOKKU_LOGS_CMD+="& "
+    else
+      local DOKKU_LOGS_CMD+="; "
+    fi
+  done
+  bash -c "($DOKKU_LOGS_CMD)"
+}
+
+logs_default_cmd "$@"