1 files changed, 61 insertions, 0 deletions
diff --git a/examples/manifest/android_mock.bzl b/examples/manifest/android_mock.bzl
new file mode 100644
index 0000000..0dee3c9
--- /dev/null
+++ b/examples/manifest/android_mock.bzl
@@ -0,0 +1,61 @@
+load("@rules_license//rules:compliance.bzl", "manifest")
+
+"""This is a proof of concept to show how to modify a macro definition to
+create a sub-graph allowing for build time injection of license information. We
+use Android-inspired rule names since these are a likely candidate for this
+sort of injection."""
+
+def android_library(name, **kwargs):
+    # This is an approximation for demo purposes.
+
+    data = kwargs.pop("data", [])
+    native.filegroup(
+        name = name,
+        srcs = data + kwargs.get("srcs", []),
+    )
+
+    # Inject the data dependency into the library, preserving any other data it has.
+    native.sh_library(
+        name = name + "_w_licenses",
+        data = data + [name + "_manifest.txt"],
+        **kwargs
+    )
+
+def android_binary(name, **kwargs):
+    # Same observation about not being sloppy with mapping deps, but I think the only important attribute
+    # in android_binary is deps, but need to double-check.
+    native.filegroup(
+        name = name + "_no_licenses",
+        srcs = kwargs.get("data", []),
+    )
+
+    mf_name = name + "_manifest"
+    manifest(
+        name = mf_name,
+        deps = [":" + name + "_no_licenses"],
+    )
+
+    # This uses the conditions tool to generate an approximation of a compliance report
+    # to demonstrate how license data can be plumbed and made available at build time.
+    native.genrule(
+        name = "gen_" + name + "_manifest",
+        srcs = [":" + mf_name],
+        outs = ["licenses_manifest.txt"],
+        cmd = "cat $(locations :%s) > $@" % mf_name,
+    )
+
+    # Swap out the :licenses dep for our new :licenses_w_licenses dep
+    newdeps = []
+    deps = kwargs.get("data", [])
+    for dep in deps:
+        if dep == ":licenses":
+            newdeps.append(":licenses_w_licenses")
+        else:
+            newdeps.append(dep)
+    kwargs["data"] = newdeps
+
+    # Compile the executable with the user's originally supplied name, but with the new content.
+    native.sh_binary(
+        name = name,
+        **kwargs
+    )