Introduce a bazel-based build for the entire JS pack.

javascript/BUILD.bazel

@@ -1,3 +1,7 @@
+load("@//:dist.bzl", "dist")
+load("@rules_pkg//pkg:mappings.bzl", "pkg_files")
+load("@//buildutils-internal:zipmerge.bzl", "zipmerge")
+
 package(default_visibility = ["//visibility:public"])
 
 alias(
@@ -9,3 +13,36 @@ alias(
     name = "dbscheme-stats",
     actual = "//javascript/ql/lib:dbscheme-stats",
 )
+
+pkg_files(
+    name = "dbscheme-group",
+    srcs = [
+        ":dbscheme",
+        ":dbscheme-stats",
+    ],
+    strip_prefix = None,
+)
+
+dist(
+    name = "javascript-extractor-pack",
+    srcs = [
+        ":dbscheme-group",
+        "//javascript/downgrades",
+        "//javascript/externs",
+        "//javascript/extractor:tools-extractor",
+        "@//language-packs/javascript:resources",
+    ],
+    prefix = "javascript",
+)
+
+# We have to zipmerge in the typescript parser wrapper, as it's generated by a genrule
+# and we don't know a list of its output files. Therefore, we sidestep the
+# rules_pkg tooling here, and generate the zip for the language pack manually.
+zipmerge(
+    name = "javascript",
+    srcs = [
+        ":javascript-extractor-pack.zip",
+        "//javascript/extractor/lib/typescript",
+    ],
+    out = "javascript.zip",
+)