refactor: add option to run specific test files, file mode ssh key and ignore changes to path_to_file

.gitignore

@@ -7,3 +7,4 @@
 /bin
 dist/
 tests/integration/.bats
+tests/resources/path_to_repo

Makefile

@@ -123,6 +123,14 @@ vm-server-connect:
 
 test-integration-hosts:
 	./scripts/tests/extra_hosts
-test-integration:
+
+# TEST_INTEGRATION_FILES overrides the default of running all test files
+ifdef TEST_INTEGRATION_FILES
+test_files := $(TEST_INTEGRATION_FILES);
+else
+test_files := *;
+endif
+test-integration: build
+	chmod 600 ./tests/resources/local_integration_ssh
 	ssh-add ./tests/resources/local_integration_ssh
-	@bats -Tp tests/integration --verbose-run
+	@bats -Tp --verbose-run tests/integration/$(test_files)

nix/hosts/README.md

@@ -43,7 +43,10 @@ All commands are run on the repository root path.
 1. Set path to repo 
 
 The VM will create a shared volume from the content of the file `tests/resources/path_to_repo`.
-Set the content of the file to the path of your abra repository.
+Set the content of the file to the path of your abra repository and run the following command to prevent tracking of the file:
+```sh
+git update-index --assume-unchanged ./tests/resources/path_to_repo
+```
 This will share the repository from your machine with the VM and you can edit files while testing without rebuiling
 or restarting the VM.
 

test_integration.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+
+# ignore changes to path_to_repo
+git update-index --assume-unchanged ./tests/resources/path_to_repo
+# write path to repo
+pwd > ./tests/resources/path_to_repo 
+
+# create or update a VM, start it and wait for successful ping
+start_vm () {
+  if [ -d "/var/lib/microvms/abra-$1" ]; then
+    make "vm-$1-update"
+  else
+    make "vm-$1-create"
+  fi
+  make "vm-$1-start"
+
+  host_available=0
+  while [ $host_available == 0 ]; do
+    if ping -c 1 "$2" &> /dev/null
+    then
+      host_available=1
+    else
+	    echo "could not ping $1, waiting for 5 seconds..."
+      sleep 5
+    fi
+  done
+}
+
+start_vm "client" "10.0.0.2"
+start_vm "server" "10.0.0.3"
+
+read -rp "Press enter to run all tests or specify test files: " TEST_INTEGRATION_FILES
+# -t option is needed for stdin output that is checked in integration tests
+ssh -t abra@10.0.0.2 -i ./tests/resources/local_integration_ssh "cd abra; make test-integration TEST_INTEGRATION_FILES=$TEST_INTEGRATION_FILES" 
+
+
+