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use anyhow::Result;
use turbo_rcstr::RcStr;
use turbo_tasks::{ResolvedVc, Vc};
use crate::{EnvMap, ProcessEnv, case_insensitive_read};
/// Allows providing any custom env values that you'd like, deferring the prior
/// envs if a key is not overridden.
#[turbo_tasks::value]
pub struct CustomProcessEnv {
prior: ResolvedVc<Box<dyn ProcessEnv>>,
custom: ResolvedVc<EnvMap>,
}
#[turbo_tasks::value_impl]
impl CustomProcessEnv {
#[turbo_tasks::function]
pub fn new(prior: ResolvedVc<Box<dyn ProcessEnv>>, custom: ResolvedVc<EnvMap>) -> Vc<Self> {
CustomProcessEnv { prior, custom }.cell()
}
}
#[turbo_tasks::value_impl]
impl ProcessEnv for CustomProcessEnv {
#[turbo_tasks::function]
async fn read_all(&self) -> Result<Vc<EnvMap>> {
let prior = self.prior.read_all().owned().await?;
let custom = self.custom.owned().await?;
let mut extended = prior;
extended.extend(custom);
Ok(Vc::cell(extended))
}
#[turbo_tasks::function]
async fn read(&self, name: RcStr) -> Result<Vc<Option<RcStr>>> {
let custom = case_insensitive_read(*self.custom, name.clone());
match &*custom.await? {
Some(_) => Ok(custom),
None => Ok(self.prior.read(name)),
}
}
}
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