71 lines
2.2 KiB
Rust
71 lines
2.2 KiB
Rust
use cc::Build;
|
|
use std::ffi::OsStr;
|
|
use std::process::{Command, Stdio};
|
|
use std::{env, fs, path::Path, path::PathBuf};
|
|
|
|
static CONFIG_NAME: &str = "DEP_LV_CONFIG_PATH";
|
|
|
|
fn main() {
|
|
let project_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap())
|
|
.canonicalize()
|
|
.unwrap();
|
|
let lvgl_sys = project_dir.join("..").join("lvgl-sys");
|
|
let vendor = lvgl_sys.join("vendor");
|
|
let lvgl_top_path = vendor.join("lvgl");
|
|
let lvgl_src_path = lvgl_top_path.join("src");
|
|
let out_path = PathBuf::from(env::var("OUT_DIR").unwrap());
|
|
|
|
let lv_config_dir = {
|
|
let raw_path = env::var(CONFIG_NAME).unwrap_or_else(|_| {
|
|
panic!(
|
|
"The environment variable {} is required to be defined",
|
|
CONFIG_NAME
|
|
);
|
|
});
|
|
let conf_path = PathBuf::from(raw_path);
|
|
|
|
if !conf_path.exists() {
|
|
panic!(format!(
|
|
"Directory referenced by {} needs to exist",
|
|
CONFIG_NAME
|
|
));
|
|
}
|
|
if !conf_path.is_dir() {
|
|
panic!(format!("{} needs to be a directory", CONFIG_NAME));
|
|
}
|
|
if !conf_path.join("lv_conf.h").exists() {
|
|
panic!(format!(
|
|
"Directory referenced by {} needs to contain a file called lv_conf.h",
|
|
CONFIG_NAME
|
|
));
|
|
}
|
|
|
|
println!(
|
|
"cargo:rerun-if-changed={}",
|
|
conf_path.join("lv_conf.h").to_str().unwrap()
|
|
);
|
|
conf_path
|
|
};
|
|
|
|
let build = Build::new();
|
|
let tool = build.get_compiler();
|
|
let preprocessed = Command::new(tool.path().to_str().unwrap())
|
|
.args(&[
|
|
"-E",
|
|
"-std=c99",
|
|
"-DLV_CONF_INCLUDE_SIMPLE",
|
|
"-I",
|
|
lvgl_top_path.to_string_lossy().as_ref(),
|
|
"-I",
|
|
lvgl_src_path.to_string_lossy().as_ref(),
|
|
"-I",
|
|
lv_config_dir.to_string_lossy().as_ref(),
|
|
lvgl_top_path.join("lvgl.h").to_string_lossy().as_ref(),
|
|
])
|
|
.output()
|
|
.unwrap();
|
|
|
|
let content = String::from_utf8(preprocessed.stdout).unwrap();
|
|
fs::write(out_path.join("lvgl_full.c"), content).unwrap();
|
|
}
|