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refactor: make PackageCache multi-process safe (#837)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| use rattler_conda_types::package::ArchiveIdentifier; | ||
| use rattler_conda_types::PackageRecord; | ||
| use rattler_digest::Sha256Hash; | ||
| use std::fmt::{Display, Formatter}; | ||
|
|
||
| /// Provides a unique identifier for packages in the cache. | ||
| /// TODO: This could not be unique over multiple subdir. How to handle? | ||
| /// TODO: Wouldn't it be better to cache based on hashes? | ||
| #[derive(Debug, Hash, Clone, Eq, PartialEq)] | ||
| pub struct CacheKey { | ||
| name: String, | ||
| version: String, | ||
| build_string: String, | ||
| sha256: Option<Sha256Hash>, | ||
| } | ||
|
|
||
| impl CacheKey { | ||
| /// Adds a sha256 hash of the archive. | ||
| pub fn with_sha256(mut self, sha256: Sha256Hash) -> Self { | ||
| self.sha256 = Some(sha256); | ||
| self | ||
| } | ||
|
|
||
| /// Potentially adds a sha256 hash of the archive. | ||
| pub fn with_opt_sha256(mut self, sha256: Option<Sha256Hash>) -> Self { | ||
| self.sha256 = sha256; | ||
| self | ||
| } | ||
| } | ||
|
|
||
| impl CacheKey { | ||
| /// Return the sha256 hash of the package if it is known. | ||
| pub fn sha256(&self) -> Option<Sha256Hash> { | ||
| self.sha256 | ||
| } | ||
| } | ||
|
|
||
| impl From<ArchiveIdentifier> for CacheKey { | ||
| fn from(pkg: ArchiveIdentifier) -> Self { | ||
| CacheKey { | ||
| name: pkg.name, | ||
| version: pkg.version, | ||
| build_string: pkg.build_string, | ||
| sha256: None, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl From<&PackageRecord> for CacheKey { | ||
| fn from(record: &PackageRecord) -> Self { | ||
| Self { | ||
| name: record.name.as_normalized().to_string(), | ||
| version: record.version.to_string(), | ||
| build_string: record.build.clone(), | ||
| sha256: record.sha256, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl Display for CacheKey { | ||
| fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result { | ||
| write!(f, "{}-{}-{}", &self.name, &self.version, &self.build_string) | ||
| } | ||
| } |
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