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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
use std::sync::Arc;
use deno_core::error::AnyError;
use deno_core::futures::stream::FuturesOrdered;
use deno_core::futures::StreamExt;
use deno_npm::registry::NpmRegistryApi;
use crate::args::package_json::PackageJsonDeps;
use crate::util::sync::AtomicFlag;
use super::NpmRegistry;
use super::NpmResolution;
#[derive(Debug)]
struct PackageJsonDepsInstallerInner {
has_installed_flag: AtomicFlag,
npm_registry_api: NpmRegistry,
npm_resolution: NpmResolution,
package_deps: PackageJsonDeps,
}
/// Holds and controls installing dependencies from package.json.
#[derive(Debug, Clone, Default)]
pub struct PackageJsonDepsInstaller(Option<Arc<PackageJsonDepsInstallerInner>>);
impl PackageJsonDepsInstaller {
pub fn new(
npm_registry_api: NpmRegistry,
npm_resolution: NpmResolution,
deps: Option<PackageJsonDeps>,
) -> Self {
Self(deps.map(|package_deps| {
Arc::new(PackageJsonDepsInstallerInner {
has_installed_flag: Default::default(),
npm_registry_api,
npm_resolution,
package_deps,
})
}))
}
pub fn package_deps(&self) -> Option<&PackageJsonDeps> {
self.0.as_ref().map(|inner| &inner.package_deps)
}
/// Installs the top level dependencies in the package.json file
/// without going through and resolving the descendant dependencies yet.
pub async fn ensure_top_level_install(&self) -> Result<(), AnyError> {
let inner = match &self.0 {
Some(inner) => inner,
None => return Ok(()),
};
if !inner.has_installed_flag.raise() {
return Ok(()); // already installed by something else
}
let mut package_reqs = inner
.package_deps
.values()
.filter_map(|r| r.as_ref().ok())
.collect::<Vec<_>>();
package_reqs.sort(); // deterministic resolution
let mut req_with_infos =
FuturesOrdered::from_iter(package_reqs.into_iter().map(|req| {
let api = inner.npm_registry_api.clone();
async move {
let info = api.package_info(&req.name).await?;
Ok::<_, AnyError>((req, info))
}
}));
while let Some(result) = req_with_infos.next().await {
let (req, info) = result?;
inner
.npm_resolution
.resolve_package_req_as_pending_with_info(req, &info)?;
}
Ok(())
}
}
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