feat(datastore): split gapic and proto usage from the handwritten library into datastore-api (googleapis#8938)

This is in the effort to remove OwlBot from the standard repo path. A
new package (datastore-api) takes care of what OwlBot used to do
(shuffle in new protos and generated gapic classes).

Internal: b/531788771

Author: feywind

handwritten/datastore/.OwlBot.yaml

@@ -12,10 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-const {dirname, resolve} = require('node:path');
+const {dirname, join, resolve} = require('node:path');
 
-const PROTO_PATH = __dirname + '/../protos/google/datastore/v1/datastore.proto';
-const DATASTORE_PROTOS = __dirname + '/../protos';
+const API_PATH = join(dirname(require.resolve('@google-cloud/datastore-api')), '..');
+const DATASTORE_PROTOS = join(API_PATH, 'protos');
+
+const PROTO_PATH = join(DATASTORE_PROTOS, 'google/datastore/v1/datastore.proto');
 const GAX_PROTOS_DIR = resolve(
   // eslint-disable-next-line @typescript-eslint/ban-ts-comment
   // @ts-ignore

handwritten/datastore/mock-server/datastore-server.ts

@@ -28,13 +28,12 @@
   ],
   "scripts": {
     "clean": "gts clean",
-    "compile": "tsc -p . && cp -r proto* build/ && cp -r system-test/data build/system-test",
-    "compile-protos": "compileProtos src",
+    "compile": "tsc -p . && cp -r protos build && cp -r system-test/data build/system-test",
     "docs": "jsdoc -c .jsdoc.js",
     "fix": "gts fix",
     "prelint": "cd samples; npm link ../; npm install",
     "lint": "gts check",
-    "prepare": "npm run compile-protos && npm run compile",
+    "prepare": "npm run compile",
     "samples-test": "cd samples/ && npm link ../ && npm install && npm test && cd ../",
     "presystem-test": "npm run compile",
     "system-test": "mocha build/system-test --timeout 600000",
@@ -43,6 +42,7 @@
     "precompile": "gts clean"
   },
   "dependencies": {
+    "@google-cloud/datastore-api": "^0.2.0",
     "@google-cloud/promisify": "^5.0.0",
     "arrify": "^2.0.0",
     "async-mutex": "^0.5.0",