Use lvgl-codegen
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6 changed files with 37 additions and 48 deletions
1
.gitignore
vendored
1
.gitignore
vendored
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@ -13,3 +13,4 @@ examples/demo/target/
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lvgl-sys/target/
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lvgl/target/
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lvgl-sys/src/bindings.rs
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lvgl/src/widgets/generated.rs
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@ -8,11 +8,6 @@ license = "MIT"
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publish = false
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build = "build.rs"
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[lib]
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name = "lvgl_codegen"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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regex = "1.3.9"
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quote = "1.0.7"
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@ -1,8 +1,16 @@
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use lvgl_codegen::{CodeGen, Rusty};
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use proc_macro2::TokenStream;
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use quote::quote;
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use std::fs::File;
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use std::io::prelude::*;
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use std::path::Path;
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fn main() {
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let rs = Path::new(concat!(
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env!("CARGO_MANIFEST_DIR"),
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"/../lvgl/src/widgets/generated.rs"
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));
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let codegen = CodeGen::new().unwrap();
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let widgets_impl: Vec<TokenStream> = codegen
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@ -15,5 +23,11 @@ fn main() {
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#(#widgets_impl)*
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};
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println!("{}", code.to_string());
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let mut file = File::create(rs).unwrap();
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writeln!(
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file,
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"/* automatically generated by lvgl-codegen */\n{}",
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code
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)
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.unwrap();
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}
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@ -9,6 +9,7 @@ license = "MIT"
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readme = "../README.md"
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categories = ["api-bindings", "embedded", "gui", "no-std"]
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keywords = ["littlevgl", "lvgl", "graphical_interfaces"]
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include = ["Cargo.toml", "src/**/*", "src/widgets/generated.rs"]
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[dependencies]
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lvgl-sys = { path = "../lvgl-sys", version = "0.2.0" }
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@ -18,6 +19,5 @@ cstr_core = { version = "0.2.0", default-features = false, features = ["alloc"]
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bitflags = "1.2.1"
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[build-dependencies]
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lvgl-codegen = { path = "../lvgl-codegen" }
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quote = "1.0.7"
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proc-macro2 = "1.0.18"
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@ -1,48 +1,26 @@
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use std::ffi::OsStr;
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use std::path::PathBuf;
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use std::path::{Path, PathBuf};
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use std::process::Command;
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use std::{env, fs, path};
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fn main() {
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let project_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap())
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.canonicalize()
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.unwrap();
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let manifest_dir = Path::new(env!("CARGO_MANIFEST_DIR"));
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let widgets_rs_path = manifest_dir.join("src/widgets/generated.rs");
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let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
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let gen_code = out_path.join("bindings.rs");
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let code = invoke_command("../target/debug/lvgl-codegen", &[""], &project_dir);
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fs::write(&gen_code, code).unwrap();
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// // Format generated code
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// let _ = invoke_command(
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// "cargo",
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// &["fmt", "-p", gen_code.to_str().unwrap()],
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// &project_dir,
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// );
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}
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fn invoke_command<C, I, S, D>(command: C, args: I, cur_dir: D) -> String
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where
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C: AsRef<OsStr>,
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I: IntoIterator<Item = S>,
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S: AsRef<OsStr>,
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D: AsRef<path::Path>,
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{
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Command::new(command)
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.current_dir(cur_dir)
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.args(args)
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.output()
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.ok()
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.and_then(|output| {
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if output.status.success() {
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Some(String::from_utf8_lossy(&output.stdout).trim().to_string())
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} else {
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if !widgets_rs_path.exists() {
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println!("Generating `src/widgets/generated.rs`");
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let status = Command::new(manifest_dir.join("../target/debug/lvgl-codegen"))
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.spawn()
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.unwrap_or_else(|_| {
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panic!(
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"{}",
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String::from_utf8_lossy(&output.stderr).trim().to_string()
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);
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}
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})
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.unwrap()
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"Code generation failed because no codegen executable was found. \
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Please run `cargo build --package lvgl-codegen` and then try again.",
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)
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})
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.wait()
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.unwrap();
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if !status.success() {
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panic!("Code generation failed");
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}
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}
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}
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@ -3,8 +3,9 @@ mod bar;
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mod gauge;
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mod label;
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include!(concat!(env!("OUT_DIR"), "/bindings.rs"));
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include!("generated.rs");
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use crate::Widget;
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pub use arc::*;
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pub use bar::*;
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pub use gauge::*;
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