feat: add an example bazel module + go binary using the library

This is mostly so that I can add it as the test module to be used
in the bazel registry presubmit

.bazelignore

@@ -1 +1,2 @@
 cpp-jsonnet
+examples/bazel

.gitignore

@@ -8,11 +8,7 @@ coverage.out
 build/
 dist/
 gojsonnet.egg-info/
-/bazel-bin
-/bazel-genfiles
-/bazel-go-jsonnet
-/bazel-out
-/bazel-testlogs
+bazel-*
 /dumpstdlibast
 
 # built binaries

examples/bazel/.bazelrc

@@ -0,0 +1 @@
+common --lockfile_mode=off

examples/bazel/.gitignore

@@ -0,0 +1 @@
+MODULE.bazel.lock

examples/bazel/BUILD.bazel

@@ -0,0 +1,18 @@
+load("@gazelle//:def.bzl", "gazelle")
+load("@rules_go//go:def.bzl", "go_binary", "go_library")
+
+gazelle(name = "gazelle")
+
+go_library(
+    name = "use_go_jsonnet_lib",
+    srcs = ["use_go_jsonnet.go"],
+    importpath = "github.com/google/go-jsonnet/examples/bazel",
+    visibility = ["//visibility:private"],
+    deps = ["@com_github_google_go_jsonnet//:go_default_library"],
+)
+
+go_binary(
+    name = "use_go_jsonnet",
+    embed = [":use_go_jsonnet_lib"],
+    visibility = ["//visibility:public"],
+)

examples/bazel/MODULE.bazel

@@ -0,0 +1,22 @@
+bazel_dep(name = "gazelle", version = "0.42.0")
+bazel_dep(name = "rules_go", version = "0.53.0")
+bazel_dep(name = "jsonnet_go")
+local_path_override(
+    module_name = "jsonnet_go",
+    path = "../..",
+)
+
+go_sdk = use_extension("@rules_go//go:extensions.bzl", "go_sdk")
+go_sdk.download(version = "1.23.7")
+
+go_deps = use_extension("@gazelle//:extensions.bzl", "go_deps")
+go_deps.from_file(go_mod = "//:go.mod")
+use_repo(
+    go_deps,
+    "com_github_google_go_jsonnet",
+)
+
+override_repo(
+    go_deps,
+    com_github_google_go_jsonnet = "jsonnet_go",
+)

examples/bazel/example.jsonnet

@@ -0,0 +1,8 @@
+local Person(name='Alice') = {
+  name: name,
+  welcome: 'Hello ' + name + '!',
+};
+{
+  person1: Person(),
+  person2: Person('Bob'),
+}

examples/bazel/go.mod

@@ -0,0 +1,13 @@
+module example/go-jsonnet-using-bazel
+
+go 1.23.7
+
+require github.com/google/go-jsonnet v0.21.0-rc2
+
+require (
+	golang.org/x/crypto v0.36.0 // indirect
+	golang.org/x/sys v0.31.0 // indirect
+	sigs.k8s.io/yaml v1.4.0 // indirect
+)
+
+replace github.com/google/go-jsonnet => ../../

examples/bazel/go.sum

@@ -0,0 +1,12 @@
+github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
+github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/sergi/go-diff v1.3.1 h1:xkr+Oxo4BOQKmkn/B9eMK0g5Kg/983T9DqqPHwYqD+8=
+github.com/sergi/go-diff v1.3.1/go.mod h1:aMJSSKb2lpPvRNec0+w3fl7LP9IOFzdc9Pa4NFbPK1I=
+golang.org/x/crypto v0.36.0 h1:AnAEvhDddvBdpY+uR+MyHmuZzzNqXSe/GvuDeob5L34=
+golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc=
+golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
+golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+sigs.k8s.io/yaml v1.4.0 h1:Mk1wCc2gy/F0THH0TAp1QYyJNzRm2KCLy3o5ASXVI5E=
+sigs.k8s.io/yaml v1.4.0/go.mod h1:Ejl7/uTz7PSA4eKMyQCUTnhZYNmLIl+5c2lQPGR2BPY=

examples/bazel/use_go_jsonnet.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"fmt"
+
+	gjs "github.com/google/go-jsonnet"
+)
+
+func main() {
+	fmt.Printf("Example using go jsonnet (%s)\n", gjs.Version())
+
+	vm := gjs.MakeVM()
+	out, err := vm.EvaluateFile("example.jsonnet")
+	if err != nil {
+		fmt.Printf("%v\n", err)
+	} else {
+		fmt.Printf("%s", out)
+	}
+}