75 lines
2.7 KiB
Rust
75 lines
2.7 KiB
Rust
fn main() {
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// load .env and pass SSID/PASSWORD to compiler
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if let Ok(dotenv_path) = dotenvy::dotenv() {
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// Only rebuild if .env changes
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println!("cargo:rerun-if-changed={}", dotenv_path.display());
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}
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// Pass WIFI credentials into firmware
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if let Ok(ssid) = std::env::var("SSID") {
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println!("cargo:rustc-env=SSID={}", ssid);
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}
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if let Ok(password) = std::env::var("PASSWORD") {
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println!("cargo:rustc-env=PASSWORD={}", password);
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}
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// Export BROKER_IP and PORT as string envs also (optional, for debugging)
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if let Ok(ip) = std::env::var("BROKER_IP") {
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println!("cargo:rustc-env=BROKER_IP={}", ip);
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}
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if let Ok(port) = std::env::var("BROKER_PORT") {
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println!("cargo:rustc-env=BROKER_PORT={}", port);
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}
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linker_be_nice();
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// make sure linkall.x is the last linker script
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println!("cargo:rustc-link-arg=-Tlinkall.x");
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}
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fn linker_be_nice() {
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let args: Vec<String> = std::env::args().collect();
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if args.len() > 1 {
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let kind = &args[1];
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let what = &args[2];
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match kind.as_str() {
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"undefined-symbol" => match what.as_str() {
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"_defmt_timestamp" => {
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eprintln!();
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eprintln!("💡 `defmt` not found - make sure `defmt.x` is added as a linker script and you have included `use defmt_rtt as _;`");
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eprintln!();
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}
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"_stack_start" => {
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eprintln!();
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eprintln!("💡 Is the linker script `linkall.x` missing?");
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eprintln!();
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}
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"esp_wifi_preempt_enable"
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| "esp_wifi_preempt_yield_task"
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| "esp_wifi_preempt_task_create" => {
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eprintln!();
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eprintln!("💡 `esp-wifi` has no scheduler enabled. Make sure you have the `builtin-scheduler` feature enabled, or that you provide an external scheduler.");
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eprintln!();
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}
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"embedded_test_linker_file_not_added_to_rustflags" => {
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eprintln!();
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eprintln!("💡 `embedded-test` not found - make sure `embedded-test.x` is added as a linker script for tests");
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eprintln!();
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}
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_ => (),
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},
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// we don't have anything helpful for "missing-lib" yet
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_ => {
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std::process::exit(1);
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}
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}
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std::process::exit(0);
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}
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println!(
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"cargo:rustc-link-arg=-Wl,--error-handling-script={}",
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std::env::current_exe().unwrap().display()
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);
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}
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