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bit more env var stuff

This commit is contained in:
lifning 2021-12-11 01:38:34 -08:00
parent 2259265107
commit b8cc606bd5
3 changed files with 22 additions and 17 deletions
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14
ferretro_components/examples/multifunction_emulator.rs
View File

@ -119,13 +119,15 @@ pub fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
emu.register_component(StderrSysInfoLogComponent::default())?;
}
let mut variables = VariableStoreComponent::default();
emu.register_component(EnvironmentVariableComponent::default())?;
let mut var_store = VariableStoreComponent::default();
// TODO: load a config file specified on the CLI
variables.insert("mgba_skip_bios", "ON");
variables.insert("gpsp_drc", "enabled");
variables.insert("gpsp_frame_mixing", "enabled");
variables.insert("gpsp_save_method", "libretro");
emu.register_component(variables)?;
var_store.insert("mgba_skip_bios", "ON");
var_store.insert("gpsp_drc", "enabled");
var_store.insert("gpsp_frame_mixing", "enabled");
var_store.insert("gpsp_save_method", "libretro");
emu.register_component(var_store)?;
emu.init()?;
emu.load_game(&opt.rom)?;

2
ferretro_components/src/provided/stdlib/mod.rs
View File

@ -16,4 +16,4 @@ pub use input::StatefulInputComponent;
pub use paths::PathBufComponent;
pub use print::*;
pub use saves::LocalFileSaveComponent;
pub use variables::VariableStoreComponent;
pub use variables::*;

23
ferretro_components/src/provided/stdlib/variables/env.rs
View File

@ -15,19 +15,22 @@ impl RetroCallbacks for EnvironmentVariableComponent {
fn set_variables(&mut self, variables: &[Variable2]) -> Option<bool> {
for v in variables {
println!("# {}", v.description);
let value = if let Ok(x) = std::env::var(&v.key) {
if !v.options.contains(&x) {
panic!("Invalid value {:?} for variable {:?} (expected one of {:?})", x, v.key, v.options);
} else if x != v.options[0] {
println!(
"# {}: {}",
v.description,
v.options.iter().map(String::as_str).collect::<Vec<_>>().join(", ")
);
if let Ok(value) = std::env::var(&v.key) {
if !v.options.contains(&value) {
panic!("Invalid value {:?} for variable {:?} (expected one of {:?})", value, v.key, v.options);
} else if value != v.options[0] {
println!("# (overridden, default {})", v.options[0]);
}
x
} else {
v.options[0].clone()
};
println!("{}={} # {:?}", v.key, value, v.options);
println!("{}={}", v.key, value);
self.variables.insert(v.key.to_owned(), value);
} else {
println!("{}=", v.key);
}
}
Some(true)
}