Rebase onto e4ad989506ec7d71f7302cc3067abd82730a4beb HEAD rootfs

Signed-off-by: Alyssa Ross <hi@alyssa.is>

1 files changed, 56 insertions, 0 deletions

diff --git a/pkgs/development/python-modules/libclang/default.nix b/pkgs/development/python-modules/libclang/default.nix
new file mode 100644
index 00000000000..24d0e287ea0
--- /dev/null
+++ b/pkgs/development/python-modules/libclang/default.nix
@@ -0,0 +1,56 @@
+{ lib
+, buildPythonPackage
+, llvmPackages
+, setuptools
+, writeText
+}:
+
+let
+  libclang = llvmPackages.libclang;
+
+  pyproject_toml = writeText "pyproject.toml" ''
+    [build-system]
+    requires = ["setuptools>=42", "wheel"]
+    build-backend = "setuptools.build_meta"
+  '';
+
+  setup_cfg = writeText "setup.cfg" ''
+    [metadata]
+    name = clang
+    version = ${libclang.version}
+
+    [options]
+    packages = clang
+  '';
+in buildPythonPackage {
+  pname = "libclang";
+  format = "pyproject";
+
+  inherit (libclang) version src;
+
+  buildInputs = [ setuptools ];
+
+  postUnpack = ''
+    # set source root to python bindings
+    if [ -e "$sourceRoot/clang/bindings/python" ]; then
+      # LLVM 13+ puts clang sources in subdirectory instead of plain tarball
+      sourceRoot="$sourceRoot/clang/bindings/python"
+    else
+      sourceRoot="$sourceRoot/bindings/python"
+    fi
+  '';
+
+  postPatch = ''
+    # link in our own build info to build as a python package
+    ln -s ${pyproject_toml} ./pyproject.toml
+    ln -s ${setup_cfg} ./setup.cfg
+
+    # set passed libclang for runtime
+    echo 'Config.set_library_path("${lib.getLib libclang}/lib")' >>./clang/cindex.py
+  '';
+
+  meta = libclang.meta // {
+    description = "Python bindings for the C language family frontend for LLVM";
+    maintainers = with lib.maintainers; [ lilyinstarlight ];
+  };
+}