fix rootfs rules

BUILD

@@ -1,6 +1,5 @@
 load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
 load("@bazel_tools//tools/build_defs/pkg:pkg.bzl", "pkg_tar")
-load("//src/undocker:rules.bzl", "rootfs", "temp")
 load("@io_bazel_rules_docker//container:container.bzl", "container_bundle")
 
 go_library(
@@ -28,27 +27,3 @@ genrule(
     cmd = "$(location :undocker) rootfs $< $@",
     tools = [":undocker"],
 )
-
-# later debugging
-pkg_tar(
-    name = "alpine-container-plus",
-    deps = ["@alpine//image"],
-)
-
-rootfs(
-    name = "alpine-rootfs2",
-    #src = "@alpine//image:image",
-    src = ":alpine-container-plus",
-)
-
-filegroup(
-    name = "maingo",
-    srcs = ["main.go"],
-    visibility = ["//visibility:public"],
-)
-
-temp(
-    name = "temp",
-    out = "maingo.txt",
-    data = ":maingo",
-)

rules.bzl

@@ -3,10 +3,11 @@ def _rootfs_impl(ctx):
     out = ctx.actions.declare_file(outf)
     ctx.actions.run(
         outputs = [out],
+        inputs = ctx.files.src,
         executable = ctx.files._undocker[0],
         arguments = [
             "rootfs",
-            ctx.attr.src.files.to_list()[0].path,
+            ctx.files.src.to_list()[0].path,
             outf,
         ],
     )
@@ -33,19 +34,3 @@ rootfs = rule(
         ),
     },
 )
-
-def _temp_impl(ctx):
-    for f in ctx.files.data:
-        print(f.path)
-    ctx.actions.run_shell(
-        outputs = [ctx.outputs.out],
-        command = "find $@",
-    )
-
-temp = rule(
-    implementation = _temp_impl,
-    attrs = {
-        "data": attr.label(mandatory = True, allow_single_file = True),
-        "out": attr.output(mandatory = True),
-    },
-)