feat: install dev env tools correctly

.devcontainer/bin/setup-dev-env

@@ -1,7 +1,11 @@
 #!/usr/bin/env bash
 
-main() {
-  declare PLUGIN_NAME="$1"
+install-go-devtools() {
+  go install github.com/go-delve/delve/cmd/dlv@latest
+  go install honnef.co/go/tools/cmd/staticcheck@latest
+}
+
+install-go-mods() {
   local plugin_root="/root/go/src/github.com/dokku/dokku/plugins"
 
   export GO111MODULE=off
@@ -22,4 +26,17 @@ main() {
   popd >/dev/null || true
 }
 
+setup-ci() {
+  local dokku_root="/root/go/src/github.com/dokku/dokku"
+  pushd "$plugin_root" >/dev/null || true
+  make ci-dependencies setup-deploy-tests
+  popd >/dev/null || true
+}
+
+main () {
+  install-go-mods
+  install-go-devtools
+  setup-ci
+}
+
 main "$@"

.devcontainer/devcontainer.json

@@ -19,7 +19,7 @@
     "source=${localWorkspaceFolder}/tmp/data/,target=/mnt/dokku/,type=bind"
   ],
   "overrideCommand": false,
-  "postCreateCommand": "download-go-mod && make setup-deploy-tests",
+  "postCreateCommand": "setup-dev-env",
   "runArgs": ["--init"],
   "workspaceFolder": "/root/go/src/github.com/dokku/dokku",
   "workspaceMount": "type=bind,source=${localWorkspaceFolder},target=/root/go/src/github.com/dokku/dokku,consistency=cached"