From fd28bf53dec9a54dd0f251b36d1a49018a161334 Mon Sep 17 00:00:00 2001
From: Jose Diaz-Gonzalez <email@josediazgonzalez.com>
Date: Tue, 5 Oct 2021 12:21:29 -0400
Subject: [PATCH] fix: move custom dockerfiles into place during the
 core-post-extract phase

Closes #4830
---
 plugins/builder-dockerfile/builder-build     | 11 -------
 plugins/builder-dockerfile/core-post-extract | 31 ++++++++++++++++++++
 2 files changed, 31 insertions(+), 11 deletions(-)
 create mode 100755 plugins/builder-dockerfile/core-post-extract

diff --git a/plugins/builder-dockerfile/builder-build b/plugins/builder-dockerfile/builder-build
index 29ec7a5a3..131cecefb 100755
--- a/plugins/builder-dockerfile/builder-build
+++ b/plugins/builder-dockerfile/builder-build
@@ -21,17 +21,6 @@ trigger-builder-dockerfile-builder-build() {
 
   pushd "$SOURCECODE_WORK_DIR" &>/dev/null
 
-  local NEW_DOCKERFILE="$(fn-builder-dockerfile-computed-dockerfile-path "$APP")"
-  if [[ -n "$NEW_DOCKERFILE" ]]; then
-    if [[ ! -f "$NEW_DOCKERFILE" ]]; then
-      dokku_log_fail "Invalid dockerfile-path specified: $NEW_DOCKERFILE"
-    fi
-
-    if [[ "$NEW_DOCKERFILE" != "Dockerfile" ]]; then
-      mv "$NEW_DOCKERFILE" Dockerfile
-    fi
-  fi
-
   # extract first port from Dockerfile
   suppress_output dos2unix Dockerfile
   local DOCKERFILE_PORTS=$(get_dockerfile_exposed_ports Dockerfile)
diff --git a/plugins/builder-dockerfile/core-post-extract b/plugins/builder-dockerfile/core-post-extract
new file mode 100755
index 000000000..16625f35f
--- /dev/null
+++ b/plugins/builder-dockerfile/core-post-extract
@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
+source "$PLUGIN_AVAILABLE_PATH/builder-dockerfile/internal-functions"
+set -eo pipefail
+[[ $DOKKU_TRACE ]] && set -x
+
+trigger-builder-dockerfile-core-post-extract() {
+  declare desc="builder-dockerfile post-extract plugin trigger"
+  declare trigger="post-extract"
+  declare APP="$1" SOURCECODE_WORK_DIR="$2"
+  local NEW_DOCKERFILE="$(fn-builder-dockerfile-computed-dockerfile-path "$APP")"
+
+  pushd "$TMP_WORK_DIR" >/dev/null
+
+  if [[ -z "$NEW_DOCKERFILE" ]]; then
+    return
+  fi
+
+  if [[ ! -f "$NEW_DOCKERFILE" ]]; then
+    dokku_log_fail "Invalid dockerfile-path specified: $NEW_DOCKERFILE"
+    rm -f Dockerfile
+    return
+  fi
+
+  if [[ "$NEW_DOCKERFILE" != "Dockerfile" ]]; then
+    mv "$NEW_DOCKERFILE" Dockerfile
+  fi
+  popd &>/dev/null
+}
+
+trigger-builder-dockerfile-core-post-extract "$@"