Go: group BUILD and dbscheme generation target

.pre-commit-config.yaml

@@ -27,11 +27,11 @@ repos:
 
   - repo: local
     hooks:
-      - id: gazelle
+      - id: go-gen
-        name: Check gazelle-generated BUILD files
+        name: Check checked in generated files in go
-        files: go/extractor/.*
+        files: go/.*
         language: system
-        entry: bazel run //go/gazelle
+        entry: bazel run //go:gen
         pass_filenames: false
 
       - id: codeql-format

go/BUILD.bazel

@@ -1,7 +1,26 @@
 load("@rules_pkg//pkg:mappings.bzl", "pkg_filegroup", "pkg_files")
 load("@rules_pkg//pkg:install.bzl", "pkg_install")
+load("@bazel_skylib//rules:native_binary.bzl", "native_binary")
+load("@gazelle//:def.bzl", "gazelle")
 load("//:defs.bzl", "codeql_platform")
 
+gazelle(
+    name = "_gazelle",
+)
+
+_gen_binaries = [
+    ":_gazelle",
+    "//go/extractor/cli/go-gen-dbscheme",
+]
+
+py_binary(
+    name = "gen",
+    srcs = ["gen.py"],
+    args = ["$(rlocationpath %s)" % bin for bin in _gen_binaries],
+    data = _gen_binaries,
+    deps = ["@rules_python//python/runfiles"],
+)
+
 pkg_files(
     name = "resources",
     srcs = [
@@ -57,3 +76,12 @@ py_binary(
     main = "create_extractor_pack.py",
     deps = [":_create_extractor_pack"],
 )
+
+native_binary(
+    name = "gen-dbscheme",
+    src = "//go/extractor/cli/go-gen-dbscheme",
+    out = "go-gen-dbscheme",
+    args = [
+        "$$BUILD_WORKSPACE_DIRECTORY/go/ql/lib/go.dbscheme",
+    ],
+)

go/gazelle/BUILD.bazel

@@ -1,13 +0,0 @@
-load("@gazelle//:def.bzl", "gazelle")
-
-gazelle(
-    name = "_gazelle",
-)
-
-py_binary(
-    name = "gazelle",
-    srcs = ["gazelle.py"],
-    args = ["$(rlocationpath :_gazelle)"],
-    data = [":_gazelle"],
-    deps = ["@rules_python//python/runfiles"],
-)

go/gen.py

@@ -4,13 +4,21 @@ import subprocess
 from python.runfiles import runfiles
 
 this = pathlib.Path(__file__).resolve()
-go_extractor_dir = this.parents[1] / "extractor"
+go_extractor_dir = this.parent / "extractor"
-gazelle = runfiles.Create().Rlocation(sys.argv[1])
+go_dbscheme = this.parent / "ql" / "lib" / "go.dbscheme"
+r = runfiles.Create()
+gazelle, go_gen_dbscheme = map(r.Rlocation, sys.argv[1:])
+
+print("clearing generated BUILD files")
 for build_file in go_extractor_dir.glob("*/**/BUILD.bazel"):
     build_file.unlink()
 
+print("running gazelle")
 subprocess.check_call([gazelle, "go/extractor"])
 
+print("adding header to generated BUILD files")
 for build_file in go_extractor_dir.glob("*/**/BUILD.bazel"):
     contents = build_file.read_text()
     build_file.write_text(f"# generated running `bazel run //go/gazelle`, do not edit\n\n{contents}")
+
+subprocess.check_call([go_gen_dbscheme, go_dbscheme])