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use crate::core::source::MaybePackage; use crate::core::{Dependency, Package, PackageId, Source, SourceId, Summary}; use crate::util::errors::{CargoResult, CargoResultExt}; pub struct ReplacedSource<'cfg> { to_replace: SourceId, replace_with: SourceId, inner: Box<dyn Source + 'cfg>, } impl<'cfg> ReplacedSource<'cfg> { pub fn new( to_replace: SourceId, replace_with: SourceId, src: Box<dyn Source + 'cfg>, ) -> ReplacedSource<'cfg> { ReplacedSource { to_replace, replace_with, inner: src, } } } impl<'cfg> Source for ReplacedSource<'cfg> { fn source_id(&self) -> SourceId { self.to_replace } fn replaced_source_id(&self) -> SourceId { self.replace_with } fn supports_checksums(&self) -> bool { self.inner.supports_checksums() } fn requires_precise(&self) -> bool { self.inner.requires_precise() } fn query(&mut self, dep: &Dependency, f: &mut dyn FnMut(Summary)) -> CargoResult<()> { let (replace_with, to_replace) = (self.replace_with, self.to_replace); let dep = dep.clone().map_source(to_replace, replace_with); self.inner .query(&dep, &mut |summary| { f(summary.map_source(replace_with, to_replace)) }) .chain_err(|| format!("failed to query replaced source {}", self.to_replace))?; Ok(()) } fn fuzzy_query(&mut self, dep: &Dependency, f: &mut dyn FnMut(Summary)) -> CargoResult<()> { let (replace_with, to_replace) = (self.replace_with, self.to_replace); let dep = dep.clone().map_source(to_replace, replace_with); self.inner .fuzzy_query(&dep, &mut |summary| { f(summary.map_source(replace_with, to_replace)) }) .chain_err(|| format!("failed to query replaced source {}", self.to_replace))?; Ok(()) } fn update(&mut self) -> CargoResult<()> { self.inner .update() .chain_err(|| format!("failed to update replaced source {}", self.to_replace))?; Ok(()) } fn download(&mut self, id: PackageId) -> CargoResult<MaybePackage> { let id = id.with_source_id(self.replace_with); let pkg = self .inner .download(id) .chain_err(|| format!("failed to download replaced source {}", self.to_replace))?; Ok(match pkg { MaybePackage::Ready(pkg) => { MaybePackage::Ready(pkg.map_source(self.replace_with, self.to_replace)) } other @ MaybePackage::Download { .. } => other, }) } fn finish_download(&mut self, id: PackageId, data: Vec<u8>) -> CargoResult<Package> { let id = id.with_source_id(self.replace_with); let pkg = self .inner .finish_download(id, data) .chain_err(|| format!("failed to download replaced source {}", self.to_replace))?; Ok(pkg.map_source(self.replace_with, self.to_replace)) } fn fingerprint(&self, id: &Package) -> CargoResult<String> { self.inner.fingerprint(id) } fn verify(&self, id: PackageId) -> CargoResult<()> { let id = id.with_source_id(self.replace_with); self.inner.verify(id) } fn describe(&self) -> String { format!( "{} (which is replacing {})", self.inner.describe(), self.to_replace ) } fn is_replaced(&self) -> bool { true } fn add_to_yanked_whitelist(&mut self, pkgs: &[PackageId]) { let pkgs = pkgs .iter() .map(|id| id.with_source_id(self.replace_with)) .collect::<Vec<_>>(); self.inner.add_to_yanked_whitelist(&pkgs); } fn is_yanked(&mut self, pkg: PackageId) -> CargoResult<bool> { self.inner.is_yanked(pkg) } }