From 1df5b4004db3daf1cf959e0833bbdb0fb6930bed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Motiejus=20Jak=C5=A1tys?= <motiejus@jakstys.lt>
Date: Thu, 10 Jun 2021 09:42:26 +0300
Subject: [PATCH] move BUILD template to a file

---
 toolchain/BUILD.sdk.bazel | 36 +++++++++++++++++++++++++++
 toolchain/defs.bzl        | 51 ++++++---------------------------------
 2 files changed, 44 insertions(+), 43 deletions(-)
 create mode 100644 toolchain/BUILD.sdk.bazel

diff --git a/toolchain/BUILD.sdk.bazel b/toolchain/BUILD.sdk.bazel
new file mode 100644
index 0000000..6c385b1
--- /dev/null
+++ b/toolchain/BUILD.sdk.bazel
@@ -0,0 +1,36 @@
+load("@zig-cc-bazel//toolchain:defs.bzl", "zig_build_macro")
+package(default_visibility = ["//visibility:public"])
+zig_build_macro(absolute_path={absolute_path}, zig_include_root={zig_include_root})
+
+constraint_setting(name = "libc")
+
+constraint_value(
+    name = "musl",
+    constraint_setting = ":libc",
+)
+
+
+platform(
+    name = "platform_x86_64-macos-gnu",
+    constraint_values = [
+        "@platforms//os:macos",
+        "@platforms//cpu:x86_64",
+    ],
+)
+
+platform(
+    name = "platform_x86_64-linux-gnu",
+    constraint_values = [
+        "@platforms//os:linux",
+        "@platforms//cpu:x86_64",
+    ],
+)
+
+platform(
+    name = "platform_x86_64-linux-musl",
+    constraint_values = [
+        "@platforms//os:linux",
+        "@platforms//cpu:x86_64",
+        ":musl",
+    ],
+)
diff --git a/toolchain/defs.bzl b/toolchain/defs.bzl
index 32a75d8..e600d89 100644
--- a/toolchain/defs.bzl
+++ b/toolchain/defs.bzl
@@ -126,46 +126,6 @@ ZIG_TOOLS = [
     "wasm-ld", # WebAssembly
 ]
 
-BUILD = """
-load("@zig-cc-bazel//toolchain:defs.bzl", "zig_build_macro")
-package(default_visibility = ["//visibility:public"])
-zig_build_macro(absolute_path={absolute_path}, zig_include_root={zig_include_root})
-
-constraint_setting(name = "libc")
-
-constraint_value(
-    name = "musl",
-    constraint_setting = ":libc",
-)
-
-
-platform(
-    name = "platform_x86_64-macos-gnu",
-    constraint_values = [
-        "@platforms//os:macos",
-        "@platforms//cpu:x86_64",
-    ],
-)
-
-platform(
-    name = "platform_x86_64-linux-gnu",
-    constraint_values = [
-        "@platforms//os:linux",
-        "@platforms//cpu:x86_64",
-    ],
-)
-
-platform(
-    name = "platform_x86_64-linux-musl",
-    constraint_values = [
-        "@platforms//os:linux",
-        "@platforms//cpu:x86_64",
-        ":musl",
-    ],
-)
-
-"""
-
 def _zig_repository_impl(repository_ctx):
     if repository_ctx.os.name.lower().startswith("mac os"):
         host_platform = "macos-x86_64"
@@ -193,9 +153,14 @@ def _zig_repository_impl(repository_ctx):
         )
 
     absolute_path = json.encode(str(repository_ctx.path("")))
-    repository_ctx.file(
-        "BUILD",
-        BUILD.format(absolute_path=absolute_path, zig_include_root=json.encode(zig_include_root)),
+    repository_ctx.template(
+        "BUILD.bazel",
+        Label("//toolchain:BUILD.sdk.bazel"),
+        executable = False,
+        substitutions = {
+            "{absolute_path}": absolute_path,
+            "{zig_include_root}": json.encode(zig_include_root),
+        },
     )
 
 zig_repository = repository_rule(