Fixing pasta by not stripping the subdirectory.

PiperOrigin-RevId: 228125275

third_party/pasta/BUILD.bazel

@@ -1,5 +1,6 @@
 # Description:
 #   AST-based python refactoring.
+load("@//third_party/pasta:build_defs.bzl", "copy_srcs")
 
 licenses(["notice"])  # Apache2
 
@@ -7,7 +8,7 @@ exports_files(["LICENSE"])
 
 py_library(
     name = "pasta",
-    srcs = [
+    srcs = copy_srcs([
         "__init__.py",
         "augment/__init__.py",
         "augment/errors.py",
@@ -23,7 +24,7 @@ py_library(
         "base/scope.py",
         "base/test_utils.py",
         "base/token_generator.py",
-    ],
+    ]),
     srcs_version = "PY2AND3",
     visibility = ["//visibility:public"],
 )

third_party/pasta/build_defs.bzl

@@ -0,0 +1,12 @@
+"""Skylark makros for building pasta."""
+
+def copy_srcs(srcs):
+    """Copies srcs from 'pasta' to parent directory."""
+    for src in srcs:
+        native.genrule(
+            name = src.replace(".", "_"),
+            srcs = ["pasta/" + src],
+            outs = [src],
+            cmd = "mkdir -p $$(dirname $@); cp $< $@",
+        )
+    return srcs

third_party/pasta/workspace.bzl

@@ -9,7 +9,7 @@ def repo():
             "https://mirror.bazel.build/github.com/google/pasta/archive/c3d72cdee6fc806251949e912510444d58d7413c.tar.gz",
             "https://github.com/google/pasta/archive/c3d72cdee6fc806251949e912510444d58d7413c.tar.gz",
         ],
-        strip_prefix = "pasta-c3d72cdee6fc806251949e912510444d58d7413c/pasta",
+        strip_prefix = "pasta-c3d72cdee6fc806251949e912510444d58d7413c",
         sha256 = "b5905f9cecc4b28363c563f3c4cb0545288bd35f7cc72c55066e97e53befc084",
         build_file = "//third_party/pasta:BUILD.bazel",
         system_build_file = "//third_party/pasta:BUILD.system",