build: use local bazel installation in test script watch mode (#18512)

Currently the test script uses the global Bazel installation in watch mode and the local one in non-watch mode. These changes fix it so we also use the local installation for watch mode.

Author: crisbeto

package.json

@@ -16,9 +16,10 @@
     "postinstall": "node tools/postinstall/apply-patches.js && ngcc --properties main --create-ivy-entry-points && node tools/postinstall/update-ngcc-main-fields.js",
     "build": "node ./scripts/build-packages-dist.js",
     "bazel": "bazelisk",
+    "ibazel": "node ./scripts/ibazel.js",
     "bazel:buildifier": "find . -type f \\( -name \"*.bzl\" -or -name WORKSPACE -or -name BUILD -or -name BUILD.bazel \\) ! -path \"*/node_modules/*\" | xargs buildifier -v --warnings=attr-cfg,attr-license,attr-non-empty,attr-output-default,attr-single-file,constant-glob,ctx-args,depset-iteration,depset-union,dict-concatenation,duplicated-name,filetype,git-repository,http-archive,integer-division,load,load-on-top,native-build,native-package,output-group,package-name,package-on-top,redefined-variable,repository-name,same-origin-load,string-iteration,unused-variable,unsorted-dict-items,out-of-order-load",
     "bazel:format-lint": "yarn -s bazel:buildifier --lint=warn --mode=check",
-    "dev-app": "ibazel run //src/dev-app:devserver",
+    "dev-app": "yarn -s ibazel run //src/dev-app:devserver",
     "test": "node ./scripts/run-component-tests.js",
     "test-local": "yarn -s test --local",
     "test-firefox": "yarn -s test --firefox",

scripts/ibazel.js

@@ -0,0 +1,10 @@
+// Temporary wrapper script which makes sure that the proper, locally-installed, binary is used when
+// running ibazel. Currently ibazel only looks for bazel in the PATH or @bazel/bazel, but not in
+// @bazel/bazelisk. See: https://github.com/bazelbuild/bazel-watcher/issues/339
+const shelljs = require('shelljs');
+const path = require('path');
+const ibazelLocalBinary = path.resolve('./node_modules/.bin/ibazel');
+const bazelLocalBinary = require('@bazel/bazelisk/bazelisk.js').getNativeBinary();
+const args = process.argv.slice(2).join(' ');
+
+shelljs.exec(`${ibazelLocalBinary} -bazel_path ${bazelLocalBinary} ${args}`);