Start license attestations for third_party code with LICENSE but no p…

…rivate BUILD

This is the first of many PRs to add license attestations.  It is the lowest of the low hanging fruit.

The non-third_party piece of #15592.  The other half needs a different approval process. Fortunately, they cleanly separate.

PiperOrigin-RevId: 461271339
Change-Id: Ib2ebba42b858756f3f6e6a0ba484c54be7a4b5d5

tools/compliance/BUILD

@@ -23,3 +23,14 @@ check_license(
         "//src:bazel-bin_nojdk",
     ],
 )
+
+check_license(
+    name = "check_srcs",
+    check_conditions = False,
+    copyright_notices = "srcs_copyrights.txt",
+    license_texts = "srcs_licenses.txt",
+    report = "srcs_report",
+    deps = [
+        "//:bazel-srcs",
+    ],
+)

tools/distributions/distribution_rules.bzl

@@ -27,7 +27,17 @@ def distrib_java_import(name, visibility = None, enable_distributions = [], **kw
     if "debian" in enable_distributions:
         conditions["//src/conditions:debian_build"] = "@debian_java_deps//:" + name
 
-    native.alias(name = name, actual = select(conditions), visibility = visibility)
+    if "applicable_licenses" in kwargs:
+        licenses = kwargs["applicable_licenses"]
+    else:
+        licenses = None
+
+    native.alias(
+        name = name,
+        actual = select(conditions),
+        visibility = visibility,
+        applicable_licenses = licenses,
+    )
 
 def distrib_cc_library(name, visibility = None, enable_distributions = [], **kwargs):
     """A macro for cc_library rule to support distributions build (eg. Debian)"""