msggen: UDL generator and first round of uniffi-based bindings

Cargo.toml

@@ -12,13 +12,14 @@ lto = "thin"
 [workspace]
 resolver = "2"
 members = [
-    "examples/rust",
-    "libs/gl-client",
-    "libs/gl-client-py",
-    "libs/gl-plugin",
-    "libs/gl-signerproxy",
-    "libs/gl-cli",
-    "libs/gl-util",
+  "examples/rust",
+  "libs/gl-client",
+  "libs/gl-client-py",
+  "libs/gl-plugin",
+  "libs/gl-signerproxy",
+  "libs/gl-cli",
+  "libs/gl-util",
+  "libs/gl-bindings",
 ]
 
 [workspace.dependencies]

Taskfile.yml

@@ -25,6 +25,13 @@ includes:
     taskfile: "libs/gl-signerproxy/.tasks.yml"
     dir: "."
 
+  bindings:
+    taskfile: "libs/gl-bindings/Taskfile.yml"
+
+  msggen:
+    taskfile: "libs/gl-msggen/.taskfile.yml"
+    dir: "libs/gl-msggen/"
+
 tasks:
   ci-check:
     deps:

libs/gl-bindings/.gitignore

@@ -0,0 +1 @@
+python

libs/gl-bindings/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "gl-bindings"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+uniffi = "0.28.3"
+
+[build-dependencies]
+uniffi = { version = "0.28.3", features = ["build"] }
+
+[lib]
+crate-type = ["cdylib"]
+name = "glbindings"

libs/gl-bindings/README.md

@@ -0,0 +1,13 @@
+# `gl-bindings`
+
+Automatically generated bindings for a variety of programming
+languages. These use `uniffi` to give host languages access to the
+Rust core, which includes the authentication and client-side logic.
+
+## Building
+
+To compile from the repository root:
+
+```bash
+task bindings:all
+```

libs/gl-bindings/Taskfile.yml

@@ -0,0 +1,39 @@
+version: '3'
+
+env:
+  CARGO_TARGET_DIR: /tmp/target
+  GL_BINDING_LIB: $CARGO_TARGET_DIR/release/libglbindings.so
+  BINDGEN_BIN: 
+
+tasks:
+  bindgen:
+    dir: '.'
+    cmds:
+      - cargo build --release
+
+  build:
+    dir: '.'
+    deps:
+      - build-python
+
+  build-python:
+    cmds:
+      - task: bindgen
+      - pwd
+      - cd ../tools/uniffi-bindgen/; cargo build --release
+      - mkdir -p python/glclient
+      - cp "$CARGO_TARGET_DIR/release/libglbindings.so" python/glclient
+      # Run the `uniffi-bindgen` with `uv` so it has access to `yapf`
+      # and other tooling that is managed by `uv`
+      - uv run $CARGO_TARGET_DIR/release/uniffi-bindgen generate --language python --out-dir python/glclient --library "python/glclient/libglbindings.so"
+      - echo 'from .glclient import *' > python/glclient/__init__.py
+
+  test-python:
+    deps:
+      - build-python
+    cmds:
+      - PYTHONPATH=python python3 -c 'import glclient;n=glclient.Node();print(n);'
+
+  all:
+    deps:
+      - test-python

libs/gl-bindings/build.rs

@@ -0,0 +1,3 @@
+fn main() {
+    uniffi::generate_scaffolding("src/glclient.udl").unwrap();
+}