m/pkg/logtree/unraw: implement

This is another part of the generic external leveled log ingestion
mechanism. This parts takes care of ingesting external data either by
exposing an io.Writer or a named pipe on the filesystem from which
external logs are parsed and then inejcted into the logtree.

Change-Id: Ie2263496ca4d50220abdd8e4d37a35730d127319
Reviewed-on: https://review.monogon.dev/c/monogon/+/208
Reviewed-by: Leopold Schabel <leo@nexantic.com>
diff --git a/metropolis/pkg/logtree/unraw/BUILD.bazel b/metropolis/pkg/logtree/unraw/BUILD.bazel
new file mode 100644
index 0000000..00a15d3
--- /dev/null
+++ b/metropolis/pkg/logtree/unraw/BUILD.bazel
@@ -0,0 +1,24 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["unraw.go"],
+    importpath = "source.monogon.dev/metropolis/pkg/logtree/unraw",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//metropolis/pkg/logbuffer:go_default_library",
+        "//metropolis/pkg/logtree:go_default_library",
+        "//metropolis/pkg/supervisor:go_default_library",
+    ],
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["unraw_test.go"],
+    embed = [":go_default_library"],
+    deps = [
+        "//metropolis/pkg/logbuffer:go_default_library",
+        "//metropolis/pkg/logtree:go_default_library",
+        "//metropolis/pkg/supervisor:go_default_library",
+    ],
+)