Use $PLUGIN_PATH instead of $(dirname $0)/..

As briefly discussed in #1425, source the `common/functions` file via an
absolute path, rather than determining the relative path by using
`dirname`. 3rd-party plugins should follow suit and use the new
`$PLUGIN_PATH` convention too.

plugins/00_dokku-standard/commands

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 case "$1" in
   build)

plugins/20_events/commands

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 PLUGIN_DIR="$(dirname $0)"
 

plugins/20_events/hook

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 [[ ! "$DOKKU_EVENTS" ]] || dokku_log_pluginhook_call "$(basename $0)" "$@"

plugins/20_events/install

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 DOKKU_RSYSLOG_FILTER=/etc/rsyslog.d/99-dokku.conf
 DOKKU_LOGROTATE_FILE=/etc/logrotate.d/dokku

plugins/apps/commands

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 case "$1" in
   apps)

plugins/build-env/pre-build

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 APP="$1"; IMAGE="dokku/$APP"; BUILD_ENV=""
 

plugins/checks/check-deploy

@@ -35,7 +35,7 @@
 #
 
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 APP="$1"; DOKKU_APP_CONTAINER_ID="$2"; DOKKU_APP_CONTAINER_TYPE="$3"; DOKKU_APP_LISTEN_PORT="$4"; DOKKU_APP_LISTEN_IP="$5"
 if [[ -z "$DOKKU_APP_LISTEN_PORT" ]] && [[ -f "$DOKKU_ROOT/$APP/PORT" ]]; then

plugins/config/commands

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 config_create () {
   [ -f $ENV_FILE ] || {

plugins/config/docker-args-deploy

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 STDIN=$(cat); APP="$1"; IMAGE="dokku/$APP"
 DOCKERFILE_ENV_FILE="$DOKKU_ROOT/$APP/DOCKERFILE_ENV_FILE"

plugins/docker-options/commands

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 PHASES=(build deploy run)
 

plugins/domains/commands

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 RE_IPV4="([0-9]{1,3}[\.]){3}[0-9]{1,3}"
 

plugins/git/commands

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 git_build_app_repo() {
   verify_app_name "$1"

plugins/git/receive-app

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 APP="$1"; REV="$2"
 

plugins/nginx-vhosts/commands

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 validate_nginx () {
   set +e

plugins/nginx-vhosts/post-deploy

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 APP="$1"
 if [[ -f "$DOKKU_ROOT/$APP/IP.web.1" ]] && [[ -f "$DOKKU_ROOT/$APP/PORT.web.1" ]]; then

plugins/nginx-vhosts/post-domains-update

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 APP="$1"
 

plugins/ps/commands

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 source "$(dirname $0)/functions"
 
 case "$1" in

plugins/ps/functions

@@ -1,9 +1,9 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 
 release_and_deploy() {
-  source "$(dirname $0)/../common/functions"
+  source "$PLUGIN_PATH/common/functions"
   local APP="$1"; local IMAGE="dokku/$APP"
 
   if verify_image "$IMAGE"; then

plugins/ps/pre-deploy

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
-source "$(dirname $0)/../common/functions"
+source "$PLUGIN_PATH/common/functions"
 source "$(dirname $0)/functions"
 
 APP="$1"