Autogenerate BUILD files

vendor/github.com/spf13/afero/BUILD

@@ -26,7 +26,12 @@ go_library(
         "sftp.go",
         "unionFile.go",
         "util.go",
-    ],
+    ] + select({
+        "@io_bazel_rules_go//go/platform:darwin_amd64": [
+            "const_bsds.go",
+        ],
+        "//conditions:default": [],
+    }),
     tags = ["automanaged"],
     deps = [
         "//vendor/github.com/pkg/sftp:go_default_library",

vendor/github.com/spf13/cobra/BUILD

@@ -14,9 +14,21 @@ go_library(
         "cobra.go",
         "command.go",
         "command_notwin.go",
-    ],
+    ] + select({
+        "@io_bazel_rules_go//go/platform:windows_amd64": [
+            "command_win.go",
+        ],
+        "//conditions:default": [],
+    }),
     tags = ["automanaged"],
-    deps = ["//vendor/github.com/spf13/pflag:go_default_library"],
+    deps = [
+        "//vendor/github.com/spf13/pflag:go_default_library",
+    ] + select({
+        "@io_bazel_rules_go//go/platform:windows_amd64": [
+            "//vendor/github.com/inconshreveable/mousetrap:go_default_library",
+        ],
+        "//conditions:default": [],
+    }),
 )
 
 filegroup(