run the test in an isolated directory

Makefile

@@ -36,21 +36,10 @@ update/provisioner.hcl2spec.go: update/provisioner.go
 	go install github.com/hashicorp/packer-plugin-sdk/cmd/packer-sdc@$(shell go list -m -f '{{.Version}}' github.com/hashicorp/packer-plugin-sdk)
 	go generate ./...
 
-install: uninstall $(PLUGIN_PATH) build
-	mkdir -p $(HOME)/.packer.d/plugins
-	cp -f $(PLUGIN_PATH) $(HOME)/.packer.d/plugins/packer-plugin-windows-update$(GOEXE)
-
-uninstall:
-	rm -f $(HOME)/.packer.d/plugins/packer-provisioner-windows-update$(GOEXE) # rm the old name too.
-	rm -f $(HOME)/.packer.d/plugins/packer-plugin-windows-update$(GOEXE)
-
 clean:
 	rm -rf dist tmp* output-test *.log
 
-test:
-	rm -rf output-test test.log
-	CHECKPOINT_DISABLE=1 PACKER_LOG=1 PACKER_LOG_PATH=test.log \
-	PKR_VAR_disk_image=~/.vagrant.d/boxes/windows-2022-amd64/0.0.0/libvirt/box_0.img \
-		packer build -only=qemu.test -on-error=abort test.pkr.hcl
+test: build
+	./test.sh
 
 .PHONY: all init build release release-snapshot install uninstall clean test

README.md

@@ -98,20 +98,9 @@ Build:
 make
 ```
 
-Install the plugin into `$HOME/.packer.d/plugins` with:
+Install the [rgl/windows-vagrant](https://github.com/rgl/windows-vagrant) vagrant box.
 
-```bash
-make install
-```
-
-**And comment the `required_plugin` block in your packer template file.**
-
-If you are having problems running `packer` set the `PACKER_LOG=1` environment
-variable to see more information.
-
-## Test (QEMU)
-
-You can test the plugin with a previously installed [rgl/windows-vagrant](https://github.com/rgl/windows-vagrant) image with:
+Test with QEMU:
 
 ```bash
 make test

test.pkr.hcl

@@ -1,3 +1,18 @@
+packer {
+  required_plugins {
+    # see https://github.com/hashicorp/packer-plugin-qemu
+    qemu = {
+      version = "1.1.0"
+      source  = "github.com/hashicorp/qemu"
+    }
+    # see https://github.com/rgl/packer-plugin-windows-update
+    windows-update = {
+      version = ">= 0.0.0"
+      source = "github.com/rgl/windows-update"
+    }
+  }
+}
+
 variable "disk_size" {
   type    = string
   default = "61440"
@@ -56,7 +71,7 @@ build {
       <<-EOF
       $p = 'c:/packer.delete.me.to.end.test.wait.txt'
       Set-Content $p 'delete this file to end the packer test wait'
-      Write-Host "ATTENTION To end this test wait, login into the machine and delete the $p file"
+      Write-Host "ATTENTION To end this test wait, login into the machine and delete the $p file. Or just press Ctrl+C."
       while (Test-Path $p) {
         Start-Sleep -Seconds 5
       }

test.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/bash
+set -euo pipefail
+
+GOHOSTOS="$(go env GOHOSTOS)"
+GOHOSTARCH="$(go env GOHOSTARCH)"
+PLUGIN_PATH="$(
+    jq -r \
+        --arg goos "$GOHOSTOS" \
+        --arg goarch "$GOHOSTARCH" \
+        '.[] | select(.goos == $goos and .goarch == $goarch and .extra.ID == "packer-plugin-windows-update") | .path' \
+        dist/artifacts.json)"
+PLUGIN_BASE_NAME="$(basename "$PLUGIN_PATH")"
+PLUGIN_TEST_PATH="dist/test/plugins/github.com/rgl/windows-update/$PLUGIN_BASE_NAME"
+
+# see https://developer.hashicorp.com/packer/docs/plugins/creation/plugin-load-spec
+rm -rf output-test test.log dist/test
+install -d dist/test/plugins/github.com/rgl/windows-update
+install "$PLUGIN_PATH" "$PLUGIN_TEST_PATH"
+(cd "$(dirname "$PLUGIN_TEST_PATH")" && \
+    sha256sum "$PLUGIN_BASE_NAME" >"${PLUGIN_BASE_NAME}_SHA256SUM")
+
+export CHECKPOINT_DISABLE=1
+export PACKER_LOG=1
+export PACKER_LOG_PATH=test.log
+export PACKER_CONFIG_DIR="$PWD/dist/test"
+export PACKER_PLUGIN_PATH="$PWD/dist/test/plugins"
+export PKR_VAR_disk_image=~/.vagrant.d/boxes/windows-2022-amd64/0.0.0/libvirt/box_0.img
+
+packer init -only=qemu.test test.pkr.hcl
+packer build -only=qemu.test -on-error=abort test.pkr.hcl