Fix android_configure.bzl for Windows

Author: fmeum

third_party/android/android_configure.bzl

@@ -6,42 +6,37 @@ load("@rules_android_ndk//:rules.bzl", "android_ndk_repository")
 _ANDROID_SDK_HOME = "ANDROID_HOME"
 _ANDROID_NDK_HOME = "ANDROID_NDK_HOME"
 
-_ANDROID_SDK_REPO_TEMPLATE = """
-    android_sdk_repository(
+_ANDROID_REPOS_TEMPLATE = """android_sdk_repository(
         name="androidsdk",
-        path="%s",
+        path={sdk_home},
     )
-"""
-
-_ANDROID_NDK_REPO_TEMPLATE = """
     android_ndk_repository(
         name="androidndk",
-        path="%s",
+        path={ndk_home},
     )
 """
 
 def _android_autoconf_impl(repository_ctx):
     """Implementation of the android_autoconf repo rule"""
     sdk_home = repository_ctx.os.environ.get(_ANDROID_SDK_HOME)
     ndk_home = repository_ctx.os.environ.get(_ANDROID_NDK_HOME)
-    sdk_rule = ""
-    ndk_rule = ""
 
-    if all([sdk_home, ndk_home]):
-        sdk_rule = _ANDROID_SDK_REPO_TEMPLATE % (sdk_home)
-        ndk_rule = _ANDROID_NDK_REPO_TEMPLATE % (ndk_home)
+    if sdk_home and ndk_home:
+        repos = _ANDROID_REPOS_TEMPLATE.format(
+            sdk_home = repr(sdk_home),
+            ndk_home = repr(ndk_home),
+        )
     else:
-        sdk_rule = "pass"
+        repos = "pass"
 
     repository_ctx.file("BUILD.bazel", "")
     repository_ctx.file("android_configure.bzl", """
 load("@build_bazel_rules_android//android:rules.bzl", "android_sdk_repository")
 load("@rules_android_ndk//:rules.bzl", "android_ndk_repository")
 
 def android_workspace():
-    {}
-    {}
-    """.format(sdk_rule, ndk_rule))
+    {repos}
+    """.format(repos = repos))
 
 android_configure = repository_rule(
     implementation = _android_autoconf_impl,