35 lines
1.1 KiB
Rust
35 lines
1.1 KiB
Rust
use std::collections::BTreeMap;
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use crate::prelude::*;
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#[derive(Default)]
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pub struct EnvironmentVariableComponent {
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variables: BTreeMap<String, String>,
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}
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impl RetroComponent for EnvironmentVariableComponent {}
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impl RetroCallbacks for EnvironmentVariableComponent {
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fn get_variable(&mut self, key: &str) -> Option<String> {
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self.variables.get(key).cloned()
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}
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fn set_variables(&mut self, variables: &[Variable2]) -> Option<bool> {
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for v in variables {
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println!("# {}", v.description);
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let value = if let Ok(x) = std::env::var(&v.key) {
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if !v.options.contains(&x) {
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panic!("Invalid value {:?} for variable {:?} (expected one of {:?})", x, v.key, v.options);
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} else if x != v.options[0] {
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println!("# (overridden, default {})", v.options[0]);
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}
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x
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} else {
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v.options[0].clone()
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};
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println!("{}={} # {:?}", v.key, value, v.options);
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self.variables.insert(v.key.to_owned(), value);
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}
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Some(true)
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}
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}
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