remove cacahe, use disk cache instead
parent
a679055f3d
commit
c75b5063af
GPG Key ID:
19182661E818369F
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@ -234,140 +234,16 @@ dependencies = [
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]
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[[package]]
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name = "async-channel"
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version = "1.6.1"
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name = "async-trait"
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version = "0.1.48"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2114d64672151c0c5eaa5e131ec84a74f06e1e559830dabba01ca30605d66319"
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checksum = "36ea56748e10732c49404c153638a15ec3d6211ec5ff35d9bb20e13b93576adf"
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dependencies = [
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"concurrent-queue",
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"event-listener",
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"futures-core",
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "async-executor"
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version = "1.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "eb877970c7b440ead138f6321a3b5395d6061183af779340b65e20c0fede9146"
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dependencies = [
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"async-task",
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"concurrent-queue",
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"fastrand",
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"futures-lite",
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"once_cell",
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"vec-arena",
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]
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[[package]]
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name = "async-global-executor"
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version = "2.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9586ec52317f36de58453159d48351bc244bc24ced3effc1fce22f3d48664af6"
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dependencies = [
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"async-channel",
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"async-executor",
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"async-io",
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"async-mutex",
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"blocking",
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"futures-lite",
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"num_cpus",
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"once_cell",
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]
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[[package]]
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name = "async-io"
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version = "1.3.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "9315f8f07556761c3e48fec2e6b276004acf426e6dc068b2c2251854d65ee0fd"
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dependencies = [
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"concurrent-queue",
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"fastrand",
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"futures-lite",
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"libc",
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"log",
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"nb-connect",
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"once_cell",
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"parking",
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"polling",
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"vec-arena",
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"waker-fn",
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"winapi",
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]
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[[package]]
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name = "async-lock"
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version = "2.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1996609732bde4a9988bc42125f55f2af5f3c36370e27c778d5191a4a1b63bfb"
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dependencies = [
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"event-listener",
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]
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[[package]]
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name = "async-mutex"
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version = "1.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "479db852db25d9dbf6204e6cb6253698f175c15726470f78af0d918e99d6156e"
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dependencies = [
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"event-listener",
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]
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[[package]]
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name = "async-process"
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version = "1.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ef37b86e2fa961bae5a4d212708ea0154f904ce31d1a4a7f47e1bbc33a0c040b"
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dependencies = [
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"async-io",
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"blocking",
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"cfg-if",
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"event-listener",
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"futures-lite",
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"once_cell",
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"signal-hook",
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"winapi",
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]
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[[package]]
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name = "async-std"
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version = "1.9.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d9f06685bad74e0570f5213741bea82158279a4103d988e57bfada11ad230341"
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dependencies = [
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"async-channel",
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"async-global-executor",
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"async-io",
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"async-lock",
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"async-process",
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"crossbeam-utils",
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"futures-channel",
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"futures-core",
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"futures-io",
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"futures-lite",
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"gloo-timers",
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"kv-log-macro",
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"log",
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"memchr",
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"num_cpus",
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"once_cell",
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"pin-project-lite",
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"pin-utils",
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"slab",
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"wasm-bindgen-futures",
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]
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[[package]]
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name = "async-task"
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version = "4.0.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e91831deabf0d6d7ec49552e489aed63b7456a7a3c46cff62adad428110b0af0"
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[[package]]
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name = "atomic-waker"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "065374052e7df7ee4047b1160cca5e1467a12351a40b3da123c870ba0b8eda2a"
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[[package]]
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name = "atty"
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version = "0.2.14"
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@ -452,20 +328,6 @@ dependencies = [
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"byte-tools",
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]
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[[package]]
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name = "blocking"
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version = "1.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c5e170dbede1f740736619b776d7251cb1b9095c435c34d8ca9f57fcd2f335e9"
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dependencies = [
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"async-channel",
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"async-task",
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"atomic-waker",
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"fastrand",
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"futures-lite",
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"once_cell",
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]
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[[package]]
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name = "brotli-sys"
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version = "0.3.2"
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@ -519,35 +381,6 @@ dependencies = [
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"bytes",
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]
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[[package]]
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name = "cacache"
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version = "8.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "159f24b3d31d4498536a317776f6d766c0cbf22a4627a607d03ec8903d910c80"
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dependencies = [
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"async-std",
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"digest 0.8.1",
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"either",
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"futures",
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"hex 0.4.3",
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"memmap",
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"serde",
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"serde_derive",
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"serde_json",
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"sha-1 0.8.2",
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"sha2",
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"ssri",
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"tempfile",
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"thiserror",
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"walkdir",
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]
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[[package]]
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name = "cache-padded"
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version = "1.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "631ae5198c9be5e753e5cc215e1bd73c2b466a3565173db433f52bb9d3e66dba"
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[[package]]
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name = "cc"
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version = "1.0.67"
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@ -618,15 +451,6 @@ dependencies = [
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"winapi",
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]
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[[package]]
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name = "concurrent-queue"
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version = "1.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "30ed07550be01594c6026cff2a1d7fe9c8f683caa798e12b68694ac9e88286a3"
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dependencies = [
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"cache-padded",
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]
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[[package]]
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name = "const_fn"
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version = "0.4.6"
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@ -681,27 +505,6 @@ dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "crossbeam-utils"
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version = "0.8.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e7e9d99fa91428effe99c5c6d4634cdeba32b8cf784fc428a2a687f61a952c49"
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dependencies = [
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"autocfg",
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"cfg-if",
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"lazy_static",
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]
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[[package]]
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name = "ctor"
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version = "0.1.20"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5e98e2ad1a782e33928b96fc3948e7c355e5af34ba4de7670fe8bac2a3b2006d"
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dependencies = [
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"quote",
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"syn",
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]
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[[package]]
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name = "ctrlc"
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version = "3.1.8"
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@ -712,6 +515,16 @@ dependencies = [
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"winapi",
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]
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[[package]]
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name = "dashmap"
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version = "4.0.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e77a43b28d0668df09411cb0bc9a8c2adc40f9a048afe863e05fd43251e8e39c"
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dependencies = [
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"cfg-if",
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"num_cpus",
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]
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[[package]]
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name = "derive_more"
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version = "0.99.13"
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@ -769,27 +582,12 @@ dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "event-listener"
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version = "2.5.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "f7531096570974c3a9dcf9e4b8e1cede1ec26cf5046219fb3b9d897503b9be59"
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[[package]]
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name = "fake-simd"
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version = "0.1.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e88a8acf291dafb59c2d96e8f59828f3838bb1a70398823ade51a84de6a6deed"
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[[package]]
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name = "fastrand"
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version = "1.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ca5faf057445ce5c9d4329e382b2ce7ca38550ef3b73a5348362d5f24e0c7fe3"
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dependencies = [
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"instant",
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]
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[[package]]
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name = "flate2"
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version = "1.0.20"
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@ -881,21 +679,6 @@ version = "0.3.13"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d71c2c65c57704c32f5241c1223167c2c3294fd34ac020c807ddbe6db287ba59"
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[[package]]
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name = "futures-lite"
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version = "1.11.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b4481d0cd0de1d204a4fa55e7d45f07b1d958abcb06714b3446438e2eff695fb"
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dependencies = [
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"fastrand",
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"futures-core",
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"futures-io",
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"memchr",
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"parking",
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"pin-project-lite",
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"waker-fn",
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]
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[[package]]
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name = "futures-macro"
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version = "0.3.13"
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@ -970,19 +753,6 @@ dependencies = [
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"wasi",
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]
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[[package]]
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name = "gloo-timers"
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version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "47204a46aaff920a1ea58b11d03dec6f704287d27561724a4631e450654a891f"
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dependencies = [
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"futures-channel",
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"futures-core",
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"js-sys",
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"wasm-bindgen",
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"web-sys",
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]
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[[package]]
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name = "h2"
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version = "0.3.2"
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@ -1035,12 +805,6 @@ version = "0.3.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "805026a5d0141ffc30abb3be3173848ad46a1b1664fe632428479619a3644d77"
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[[package]]
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name = "hex"
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version = "0.4.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
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[[package]]
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name = "http"
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version = "0.2.4"
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@ -1163,15 +927,6 @@ dependencies = [
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"wasm-bindgen",
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]
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[[package]]
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name = "kv-log-macro"
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version = "1.0.7"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
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dependencies = [
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"log",
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]
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[[package]]
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name = "language-tags"
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version = "0.2.2"
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@ -1235,7 +990,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
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dependencies = [
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"cfg-if",
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"value-bag",
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]
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[[package]]
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@ -1252,13 +1006,14 @@ name = "mangadex-home"
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version = "0.2.1"
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dependencies = [
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"actix-web",
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"async-trait",
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"base64 0.13.0",
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"bincode",
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"bytes",
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"cacache",
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"chrono",
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"clap",
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"ctrlc",
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"dashmap",
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"dotenv",
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"futures",
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"log",
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@ -1289,16 +1044,6 @@ version = "2.3.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
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[[package]]
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name = "memmap"
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version = "0.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6585fd95e7bb50d6cc31e20d4cf9afb4e2ba16c5846fc76793f11218da9c475b"
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dependencies = [
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"libc",
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"winapi",
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]
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[[package]]
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name = "mime"
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version = "0.3.16"
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@ -1355,16 +1100,6 @@ dependencies = [
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"tempfile",
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]
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[[package]]
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name = "nb-connect"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a19900e7eee95eb2b3c2e26d12a874cc80aaf750e31be6fcbe743ead369fa45d"
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dependencies = [
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"libc",
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"socket2",
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]
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[[package]]
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name = "nix"
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version = "0.20.0"
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@ -1472,12 +1207,6 @@ version = "2.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "afb2e1c3ee07430c2cf76151675e583e0f19985fa6efae47d6848a3e2c824f85"
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[[package]]
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name = "parking"
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version = "2.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
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[[package]]
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name = "parking_lot"
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version = "0.11.1"
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@ -1547,19 +1276,6 @@ version = "0.3.19"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
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[[package]]
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name = "polling"
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version = "2.0.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4fc12d774e799ee9ebae13f4076ca003b40d18a11ac0f3641e6f899618580b7b"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"libc",
|
||||
"log",
|
||||
"wepoll-sys",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "ppv-lite86"
|
||||
version = "0.2.10"
|
||||
|
|
@ -1773,15 +1489,6 @@ version = "1.0.5"
|
|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "71d301d4193d031abdd79ff7e3dd721168a9572ef3fe51a1517aba235bd8f86e"
|
||||
|
||||
[[package]]
|
||||
name = "same-file"
|
||||
version = "1.0.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
|
||||
dependencies = [
|
||||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "schannel"
|
||||
version = "0.1.19"
|
||||
|
|
@ -1932,16 +1639,6 @@ dependencies = [
|
|||
"opaque-debug 0.2.3",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "signal-hook"
|
||||
version = "0.3.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ef33d6d0cd06e0840fba9985aab098c147e67e05cee14d412d3345ed14ff30ac"
|
||||
dependencies = [
|
||||
"libc",
|
||||
"signal-hook-registry",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "signal-hook-registry"
|
||||
version = "1.3.0"
|
||||
|
|
@ -2011,7 +1708,7 @@ checksum = "e875e58f12c33f832d09cff94b079aee84a48d8188d7a7132b3434358afb70c9"
|
|||
dependencies = [
|
||||
"base64 0.10.1",
|
||||
"digest 0.8.1",
|
||||
"hex 0.3.2",
|
||||
"hex",
|
||||
"serde",
|
||||
"serde_derive",
|
||||
"sha-1 0.8.2",
|
||||
|
|
@ -2379,27 +2076,12 @@ dependencies = [
|
|||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "value-bag"
|
||||
version = "1.0.0-alpha.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6b676010e055c99033117c2343b33a40a30b91fecd6c49055ac9cd2d6c305ab1"
|
||||
dependencies = [
|
||||
"ctor",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "vcpkg"
|
||||
version = "0.2.11"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
|
||||
|
||||
[[package]]
|
||||
name = "vec-arena"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "34b2f665b594b07095e3ac3f718e13c2197143416fae4c5706cffb7b1af8d7f1"
|
||||
|
||||
[[package]]
|
||||
name = "vec_map"
|
||||
version = "0.8.2"
|
||||
|
|
@ -2412,23 +2094,6 @@ version = "0.9.3"
|
|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5fecdca9a5291cc2b8dcf7dc02453fee791a280f3743cb0905f8822ae463b3fe"
|
||||
|
||||
[[package]]
|
||||
name = "waker-fn"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
|
||||
|
||||
[[package]]
|
||||
name = "walkdir"
|
||||
version = "2.3.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "808cf2735cd4b6866113f648b791c6adc5714537bc222d9347bb203386ffda56"
|
||||
dependencies = [
|
||||
"same-file",
|
||||
"winapi",
|
||||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "want"
|
||||
version = "0.3.0"
|
||||
|
|
@ -2542,15 +2207,6 @@ dependencies = [
|
|||
"webpki",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "wepoll-sys"
|
||||
version = "3.0.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0fcb14dea929042224824779fbc82d9fab8d2e6d3cbc0ac404de8edf489e77ff"
|
||||
dependencies = [
|
||||
"cc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.3.9"
|
||||
|
|
|
|||
|
|
@ -10,13 +10,14 @@ repository = "https://github.com/edward-shen/mangadex-home-rs"
|
|||
|
||||
[dependencies]
|
||||
actix-web = { version = "4.0.0-beta.4", features = [ "rustls" ] }
|
||||
async-trait = "0.1"
|
||||
base64 = "0.13"
|
||||
bincode = "1"
|
||||
bytes = "1"
|
||||
cacache = "8"
|
||||
chrono = { version = "0.4", features = [ "serde" ] }
|
||||
clap = { version = "3.0.0-beta.2", features = [ "wrap_help" ] }
|
||||
ctrlc = "3"
|
||||
dashmap = "4"
|
||||
dotenv = "0.15"
|
||||
futures = "0.3"
|
||||
once_cell = "1"
|
||||
|
|
|
|||
203
src/cache.rs
203
src/cache.rs
|
|
@ -1,203 +0,0 @@
|
|||
use std::{fmt::Display, path::PathBuf};
|
||||
|
||||
use futures::future::join_all;
|
||||
use log::warn;
|
||||
use lru::LruCache;
|
||||
use serde::{Deserialize, Serialize};
|
||||
use ssri::Integrity;
|
||||
|
||||
#[derive(PartialEq, Eq, Hash, Clone)]
|
||||
pub struct CacheKey(pub String, pub String, pub bool);
|
||||
|
||||
impl Display for CacheKey {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
if self.2 {
|
||||
write!(f, "saver/{}/{}", self.0, self.1)
|
||||
} else {
|
||||
write!(f, "data/{}/{}", self.0, self.1)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Serialize, Deserialize)]
|
||||
pub struct CachedImage {
|
||||
pub data: Vec<u8>,
|
||||
pub content_type: Option<Vec<u8>>,
|
||||
pub content_length: Option<Vec<u8>>,
|
||||
pub last_modified: Option<Vec<u8>>,
|
||||
}
|
||||
|
||||
impl CachedImage {
|
||||
#[inline]
|
||||
fn len(&self) -> usize {
|
||||
self.data.capacity()
|
||||
+ self
|
||||
.content_type
|
||||
.as_ref()
|
||||
.map(Vec::capacity)
|
||||
.unwrap_or_default()
|
||||
+ self
|
||||
.content_length
|
||||
.as_ref()
|
||||
.map(Vec::capacity)
|
||||
.unwrap_or_default()
|
||||
+ self
|
||||
.last_modified
|
||||
.as_ref()
|
||||
.map(Vec::capacity)
|
||||
.unwrap_or_default()
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn shrink_to_fit(&mut self) {
|
||||
self.data.shrink_to_fit();
|
||||
self.content_length.as_mut().map(Vec::shrink_to_fit);
|
||||
self.last_modified.as_mut().map(Vec::shrink_to_fit);
|
||||
}
|
||||
}
|
||||
|
||||
pub struct Cache {
|
||||
in_memory: LruCache<CacheKey, CachedImage>,
|
||||
memory_max_size: usize,
|
||||
memory_cur_size: usize,
|
||||
|
||||
on_disk: LruCache<CacheKey, Integrity>,
|
||||
disk_path: PathBuf,
|
||||
disk_max_size: usize,
|
||||
disk_cur_size: usize,
|
||||
}
|
||||
|
||||
impl Cache {
|
||||
pub fn new(memory_max_size: usize, disk_max_size: usize, disk_path: PathBuf) -> Self {
|
||||
Self {
|
||||
in_memory: LruCache::unbounded(),
|
||||
memory_max_size,
|
||||
memory_cur_size: 0,
|
||||
on_disk: LruCache::unbounded(),
|
||||
disk_path,
|
||||
disk_max_size,
|
||||
disk_cur_size: 0,
|
||||
}
|
||||
}
|
||||
|
||||
pub async fn get(&mut self, key: &CacheKey) -> Option<&CachedImage> {
|
||||
if self.in_memory.contains(key) {
|
||||
return self.in_memory.get(key);
|
||||
}
|
||||
|
||||
if let Some(disk_key) = self.on_disk.pop(key) {
|
||||
// extract from disk, if it exists
|
||||
let bytes = cacache::read_hash(&self.disk_path, &disk_key).await.ok()?;
|
||||
// We don't particularly care if we fail to delete from disk since
|
||||
// if it's an error it means it's already been dropped.
|
||||
cacache::remove_hash(&self.disk_path, &disk_key).await.ok();
|
||||
self.disk_cur_size -= bytes.len();
|
||||
let cached_image: CachedImage = match bincode::deserialize(&bytes) {
|
||||
Ok(image) => image,
|
||||
Err(e) => {
|
||||
warn!("Failed to serialize on-disk data?! {}", e);
|
||||
return None;
|
||||
}
|
||||
};
|
||||
|
||||
// put into in-memory
|
||||
self.put(key.clone(), cached_image).await;
|
||||
}
|
||||
|
||||
None
|
||||
}
|
||||
|
||||
pub async fn put(&mut self, key: CacheKey, mut image: CachedImage) {
|
||||
image.shrink_to_fit();
|
||||
let mut hot_evicted = vec![];
|
||||
let new_img_size = image.len();
|
||||
|
||||
if self.memory_max_size >= new_img_size {
|
||||
// Evict oldest entires to make space for new image.
|
||||
while new_img_size + self.memory_cur_size > self.memory_max_size {
|
||||
match self.in_memory.pop_lru() {
|
||||
Some((key, evicted_image)) => {
|
||||
self.memory_cur_size -= evicted_image.len();
|
||||
hot_evicted.push((key, evicted_image));
|
||||
}
|
||||
None => unreachable!(concat!(
|
||||
"Invariant violated. Cache is empty but we already ",
|
||||
"guaranteed we can remove items from cache to make space."
|
||||
)),
|
||||
}
|
||||
}
|
||||
|
||||
self.in_memory.put(key, image);
|
||||
self.memory_cur_size += new_img_size;
|
||||
} else {
|
||||
// Image was larger than memory capacity, push directly into cold
|
||||
// storage.
|
||||
self.push_into_cold(key, image).await;
|
||||
}
|
||||
|
||||
// Push evicted hot entires into cold storage.
|
||||
for (key, image) in hot_evicted {
|
||||
self.push_into_cold(key, image).await;
|
||||
}
|
||||
}
|
||||
|
||||
async fn push_into_cold(&mut self, key: CacheKey, image: CachedImage) {
|
||||
let image = bincode::serialize(&image).unwrap(); // This should never fail.
|
||||
let new_img_size = image.len();
|
||||
let mut to_drop = vec![];
|
||||
|
||||
if self.disk_max_size >= new_img_size {
|
||||
// Add images to drop from cold cache into a queue
|
||||
while new_img_size + self.disk_cur_size > self.disk_max_size {
|
||||
match self.on_disk.pop_lru() {
|
||||
Some((key, disk_key)) => {
|
||||
// Basically, the assumption here is that if the meta
|
||||
// data was deleted, we can't assume that deleting the
|
||||
// value will yield any free space back, so we assume a
|
||||
// size of zero while this is the case. This also means
|
||||
// that we automatically drop broken links as well.
|
||||
let on_disk_size = cacache::metadata(&self.disk_path, key.to_string())
|
||||
.await
|
||||
.unwrap_or_default()
|
||||
.map(|metadata| metadata.size)
|
||||
.unwrap_or_default();
|
||||
self.disk_cur_size -= on_disk_size;
|
||||
|
||||
to_drop.push(disk_key);
|
||||
}
|
||||
None => unreachable!(concat!(
|
||||
"Invariant violated. Cache is empty but we already ",
|
||||
"guaranteed we can remove items from cache to make space."
|
||||
)),
|
||||
}
|
||||
}
|
||||
} else {
|
||||
warn!(
|
||||
"Got request to push file larger than maximum disk cache. Refusing to insert on disk! {}",
|
||||
key
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
let mut futs = vec![];
|
||||
for key in &to_drop {
|
||||
futs.push(cacache::remove_hash(&self.disk_path, key));
|
||||
}
|
||||
// Run all cold caching in parallel, we don't care if the removal fails
|
||||
// because it just means it's already been removed.
|
||||
join_all(futs).await;
|
||||
|
||||
let new_disk_key = match cacache::write(&self.disk_path, key.to_string(), image).await {
|
||||
Ok(key) => key,
|
||||
Err(e) => {
|
||||
warn!(
|
||||
"failed to write to disk cache, dropping value instead: {}",
|
||||
e
|
||||
);
|
||||
return;
|
||||
}
|
||||
};
|
||||
self.on_disk.put(key.clone(), new_disk_key);
|
||||
self.disk_cur_size += new_img_size;
|
||||
}
|
||||
}
|
||||
|
|
@ -35,15 +35,15 @@ static WRITING_STATUS: Lazy<RwLock<HashMap<PathBuf, Arc<CacheStatus>>>> =
|
|||
Lazy::new(|| RwLock::new(HashMap::new()));
|
||||
|
||||
/// Tries to read from the file, returning a byte stream if it exists
|
||||
pub async fn read_file(
|
||||
path: &Path,
|
||||
) -> Option<Result<impl Stream<Item = Result<Bytes, UpstreamError>>, std::io::Error>> {
|
||||
pub async fn read_file(path: &Path) -> Option<Result<FromFsStream, std::io::Error>> {
|
||||
if path.exists() {
|
||||
if let Some(status) = WRITING_STATUS.read().get(path) {
|
||||
Some(FromFsStream::new(path, Arc::clone(status)).await)
|
||||
} else {
|
||||
Some(FromFsStream::new(path, Arc::new(CacheStatus::done())).await)
|
||||
}
|
||||
let status = WRITING_STATUS
|
||||
.read()
|
||||
.get(path)
|
||||
.map(Arc::clone)
|
||||
.unwrap_or_else(|| Arc::new(CacheStatus::done()));
|
||||
|
||||
Some(FromFsStream::new(path, status).await)
|
||||
} else {
|
||||
None
|
||||
}
|
||||
|
|
@ -54,7 +54,7 @@ pub async fn read_file(
|
|||
pub async fn transparent_file_stream(
|
||||
path: &Path,
|
||||
mut byte_stream: impl Stream<Item = Result<Bytes, Error>> + Unpin + Send + 'static,
|
||||
) -> Result<impl Stream<Item = Result<Bytes, UpstreamError>>, std::io::Error> {
|
||||
) -> Result<FromFsStream, std::io::Error> {
|
||||
let done_writing_flag = Arc::new(CacheStatus::new());
|
||||
|
||||
let mut file = {
|
||||
|
|
@ -73,13 +73,16 @@ pub async fn transparent_file_stream(
|
|||
while let Some(bytes) = byte_stream.next().await {
|
||||
match bytes {
|
||||
Ok(bytes) => file.write_all(&bytes).await?,
|
||||
Err(_) => was_errored = true,
|
||||
Err(_) => {
|
||||
was_errored = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if was_errored {
|
||||
// It's ok if the deleting the file fails, since we truncate on
|
||||
// create anyways
|
||||
// create anyways, but it should be best effort
|
||||
let _ = remove_file(&path_buf).await;
|
||||
} else {
|
||||
file.flush().await?;
|
||||
|
|
@ -103,7 +106,7 @@ pub async fn transparent_file_stream(
|
|||
Ok(FromFsStream::new(path, done_writing_flag).await?)
|
||||
}
|
||||
|
||||
struct FromFsStream {
|
||||
pub struct FromFsStream {
|
||||
file: Pin<Box<File>>,
|
||||
sleep: Pin<Box<Sleep>>,
|
||||
is_file_done_writing: Arc<CacheStatus>,
|
||||
|
|
@ -0,0 +1,222 @@
|
|||
use std::path::PathBuf;
|
||||
|
||||
use async_trait::async_trait;
|
||||
use bytes::Bytes;
|
||||
use log::{debug, warn};
|
||||
use lru::LruCache;
|
||||
use tokio::fs::{remove_file, File};
|
||||
use tokio::io::{AsyncReadExt, AsyncWriteExt};
|
||||
|
||||
use super::{Cache, CacheKey, CachedImage, ImageMetadata};
|
||||
|
||||
pub struct GenerationalCache {
|
||||
in_memory: LruCache<CacheKey, (CachedImage, ImageMetadata)>,
|
||||
memory_max_size: usize,
|
||||
memory_cur_size: usize,
|
||||
|
||||
on_disk: LruCache<CacheKey, ImageMetadata>,
|
||||
disk_path: PathBuf,
|
||||
disk_max_size: usize,
|
||||
disk_cur_size: usize,
|
||||
}
|
||||
|
||||
impl GenerationalCache {
|
||||
pub fn new(memory_max_size: usize, disk_max_size: usize, disk_path: PathBuf) -> Self {
|
||||
Self {
|
||||
in_memory: LruCache::unbounded(),
|
||||
memory_max_size,
|
||||
memory_cur_size: 0,
|
||||
|
||||
on_disk: LruCache::unbounded(),
|
||||
disk_path,
|
||||
disk_max_size,
|
||||
disk_cur_size: 0,
|
||||
}
|
||||
}
|
||||
|
||||
async fn push_into_cold(&mut self, key: CacheKey, image: CachedImage, metadata: ImageMetadata) {
|
||||
let new_img_size = image.0.len();
|
||||
let mut to_drop = vec![];
|
||||
|
||||
if self.disk_max_size >= new_img_size {
|
||||
// Add images to drop from cold cache into a queue
|
||||
while new_img_size + self.disk_cur_size > self.disk_max_size {
|
||||
match self.on_disk.pop_lru() {
|
||||
Some((key, _)) => {
|
||||
let mut path = self.disk_path.clone();
|
||||
path.push(PathBuf::from(key));
|
||||
let async_file = File::open(&path).await;
|
||||
|
||||
// Basically, the assumption here is that if the meta
|
||||
// data was deleted, we can't assume that deleting the
|
||||
// value will yield any free space back, so we assume a
|
||||
// size of zero while this is the case. This also means
|
||||
// that we automatically drop broken links as well.
|
||||
if let Ok(file) = async_file {
|
||||
let file_size = file
|
||||
.into_std()
|
||||
.await
|
||||
.metadata()
|
||||
.map(|metadata| {
|
||||
#[cfg(target_os = "windows")]
|
||||
{
|
||||
use std::os::windows::fs::MetadataExt;
|
||||
metadata.file_size()
|
||||
}
|
||||
|
||||
#[cfg(target_os = "linux")]
|
||||
{
|
||||
use std::os::unix::fs::MetadataExt;
|
||||
metadata.size()
|
||||
}
|
||||
})
|
||||
.unwrap_or_default();
|
||||
|
||||
self.disk_cur_size -= file_size as usize;
|
||||
}
|
||||
|
||||
to_drop.push(path);
|
||||
}
|
||||
None => unreachable!(concat!(
|
||||
"Invariant violated. Cache is empty but we already ",
|
||||
"guaranteed we can remove items from cache to make space."
|
||||
)),
|
||||
}
|
||||
}
|
||||
} else {
|
||||
warn!(
|
||||
"Got request to push file larger than maximum disk cache. Refusing to insert on disk! {}",
|
||||
key
|
||||
);
|
||||
return;
|
||||
}
|
||||
|
||||
// Run all cold caching in parallel, we don't care if the removal fails
|
||||
// because it just means it's already been removed.
|
||||
//
|
||||
// We also don't care when it happens, so just spawn tasks to do them
|
||||
// later, whenever is convenient.
|
||||
for to_drop in to_drop {
|
||||
tokio::spawn(remove_file(to_drop));
|
||||
}
|
||||
|
||||
let new_key_path = {
|
||||
let mut root = self.disk_path.clone();
|
||||
root.push(PathBuf::from(&key));
|
||||
root
|
||||
};
|
||||
|
||||
match File::open(&new_key_path).await {
|
||||
Ok(mut file) => {
|
||||
debug!("Starting to write to file: {:?}", &new_key_path);
|
||||
match file.write_all(&image.0).await {
|
||||
Ok(_) => {
|
||||
self.on_disk.put(key, metadata);
|
||||
self.disk_cur_size += new_img_size;
|
||||
debug!(
|
||||
"Successfully written data to disk for file {:?}",
|
||||
new_key_path
|
||||
);
|
||||
}
|
||||
Err(e) => {
|
||||
warn!("Failed to write to {:?}: {}", new_key_path, e);
|
||||
}
|
||||
}
|
||||
}
|
||||
Err(e) => {
|
||||
warn!("Failed to open {:?}: {}", new_key_path, e);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl Cache for GenerationalCache {
|
||||
async fn get(&mut self, key: &CacheKey) -> Option<&(CachedImage, ImageMetadata)> {
|
||||
if self.in_memory.contains(key) {
|
||||
return self.in_memory.get(key);
|
||||
}
|
||||
|
||||
if let Some(metadata) = self.on_disk.pop(key) {
|
||||
let new_key_path = {
|
||||
let mut root = self.disk_path.clone();
|
||||
root.push(PathBuf::from(key));
|
||||
root
|
||||
};
|
||||
|
||||
// extract from disk, if it exists
|
||||
let file = File::open(new_key_path.clone()).await;
|
||||
|
||||
let mut buffer = if let Some(size) = metadata.content_length {
|
||||
Vec::with_capacity(size)
|
||||
} else {
|
||||
Vec::new()
|
||||
};
|
||||
|
||||
match file {
|
||||
Ok(mut file) => {
|
||||
match file.read_to_end(&mut buffer).await {
|
||||
Ok(_) => {
|
||||
// We don't particularly care if we fail to delete from disk since
|
||||
// if it's an error it means it's already been dropped.
|
||||
tokio::spawn(remove_file(new_key_path.clone()));
|
||||
}
|
||||
Err(e) => {
|
||||
warn!("Failed to read from {:?}: {}", new_key_path, e);
|
||||
}
|
||||
}
|
||||
}
|
||||
Err(e) => {
|
||||
warn!("Failed to open {:?}: {}", new_key_path, e);
|
||||
return None;
|
||||
}
|
||||
}
|
||||
|
||||
buffer.shrink_to_fit();
|
||||
|
||||
self.disk_cur_size -= buffer.len();
|
||||
let image = CachedImage(Bytes::from(buffer));
|
||||
|
||||
// Since we just put it in the in-memory cache it should be there
|
||||
// when we retrieve it
|
||||
self.put(key.clone(), image, metadata).await;
|
||||
return self.get(key).await;
|
||||
}
|
||||
|
||||
None
|
||||
}
|
||||
|
||||
#[inline]
|
||||
async fn put(&mut self, key: CacheKey, image: CachedImage, metadata: ImageMetadata) {
|
||||
let mut hot_evicted = vec![];
|
||||
let new_img_size = image.0.len();
|
||||
|
||||
if self.memory_max_size >= new_img_size {
|
||||
// Evict oldest entires to make space for new image.
|
||||
while new_img_size + self.memory_cur_size > self.memory_max_size {
|
||||
match self.in_memory.pop_lru() {
|
||||
Some((key, (image, metadata))) => {
|
||||
self.memory_cur_size -= image.0.len();
|
||||
hot_evicted.push((key, image, metadata));
|
||||
}
|
||||
None => unreachable!(concat!(
|
||||
"Invariant violated. Cache is empty but we already ",
|
||||
"guaranteed we can remove items from cache to make space."
|
||||
)),
|
||||
}
|
||||
}
|
||||
|
||||
self.in_memory.put(key, (image, metadata));
|
||||
self.memory_cur_size += new_img_size;
|
||||
} else {
|
||||
// Image was larger than memory capacity, push directly into cold
|
||||
// storage.
|
||||
self.push_into_cold(key, image, metadata).await;
|
||||
};
|
||||
|
||||
// Push evicted hot entires into cold storage.
|
||||
for (key, image, metadata) in hot_evicted {
|
||||
self.push_into_cold(key, image, metadata).await;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
//! Low memory caching stuff
|
||||
|
||||
use std::path::{Path, PathBuf};
|
||||
|
||||
use async_trait::async_trait;
|
||||
use bytes::Bytes;
|
||||
use futures::Stream;
|
||||
use lru::LruCache;
|
||||
|
||||
use super::{fs::FromFsStream, Cache, CacheKey};
|
||||
|
||||
pub struct LowMemCache {
|
||||
on_disk: LruCache<CacheKey, ()>,
|
||||
disk_path: PathBuf,
|
||||
disk_max_size: usize,
|
||||
disk_cur_size: usize,
|
||||
}
|
||||
|
||||
impl LowMemCache {
|
||||
pub fn new(disk_max_size: usize, disk_path: PathBuf) -> Self {
|
||||
Self {
|
||||
on_disk: LruCache::unbounded(),
|
||||
disk_path,
|
||||
disk_max_size,
|
||||
disk_cur_size: 0,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
impl Cache for LowMemCache {
|
||||
async fn get_stream(&mut self, key: &CacheKey) -> Option<Result<FromFsStream, std::io::Error>> {
|
||||
if self.on_disk.get(key).is_some() {
|
||||
super::fs::read_file(&Path::new(&key.to_string())).await
|
||||
} else {
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
async fn put_stream(
|
||||
&mut self,
|
||||
key: CacheKey,
|
||||
image: impl Stream<Item = Result<Bytes, reqwest::Error>> + Unpin + Send + 'static,
|
||||
) {
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,119 @@
|
|||
use std::fmt::Display;
|
||||
use std::path::PathBuf;
|
||||
|
||||
use actix_web::http::HeaderValue;
|
||||
use async_trait::async_trait;
|
||||
use bytes::Bytes;
|
||||
use chrono::{DateTime, FixedOffset};
|
||||
use futures::Stream;
|
||||
|
||||
pub use generational::GenerationalCache;
|
||||
pub use low_mem::LowMemCache;
|
||||
|
||||
use self::fs::FromFsStream;
|
||||
|
||||
mod fs;
|
||||
mod generational;
|
||||
mod low_mem;
|
||||
|
||||
#[derive(PartialEq, Eq, Hash, Clone)]
|
||||
pub struct CacheKey(pub String, pub String, pub bool);
|
||||
|
||||
impl Display for CacheKey {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
if self.2 {
|
||||
write!(f, "saver/{}/{}", self.0, self.1)
|
||||
} else {
|
||||
write!(f, "data/{}/{}", self.0, self.1)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl From<CacheKey> for PathBuf {
|
||||
#[inline]
|
||||
fn from(key: CacheKey) -> Self {
|
||||
key.to_string().into()
|
||||
}
|
||||
}
|
||||
|
||||
impl From<&CacheKey> for PathBuf {
|
||||
#[inline]
|
||||
fn from(key: &CacheKey) -> Self {
|
||||
key.to_string().into()
|
||||
}
|
||||
}
|
||||
|
||||
pub struct CachedImage(pub Bytes);
|
||||
|
||||
pub struct ImageMetadata {
|
||||
pub content_type: Option<String>,
|
||||
pub content_length: Option<usize>,
|
||||
pub last_modified: Option<DateTime<FixedOffset>>,
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum ImageRequestError {
|
||||
InvalidContentType,
|
||||
InvalidContentLength,
|
||||
InvalidLastModified,
|
||||
}
|
||||
|
||||
impl ImageMetadata {
|
||||
pub fn new(
|
||||
content_type: Option<HeaderValue>,
|
||||
content_length: Option<HeaderValue>,
|
||||
last_modified: Option<HeaderValue>,
|
||||
) -> Result<Self, ImageRequestError> {
|
||||
Ok(Self {
|
||||
content_type: content_type
|
||||
.map(|v| v.to_str().map(|v| v.to_string()))
|
||||
.transpose()
|
||||
.map_err(|_| ImageRequestError::InvalidContentType)?,
|
||||
content_length: content_length
|
||||
.map(|header_val| {
|
||||
header_val
|
||||
.to_str()
|
||||
.map_err(|_| ImageRequestError::InvalidContentLength)?
|
||||
.parse()
|
||||
.map_err(|_| ImageRequestError::InvalidContentLength)
|
||||
})
|
||||
.transpose()?,
|
||||
last_modified: last_modified
|
||||
.map(|header_val| {
|
||||
DateTime::parse_from_rfc2822(
|
||||
header_val
|
||||
.to_str()
|
||||
.map_err(|_| ImageRequestError::InvalidLastModified)?,
|
||||
)
|
||||
.map_err(|_| ImageRequestError::InvalidLastModified)
|
||||
})
|
||||
.transpose()?,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait]
|
||||
pub trait Cache {
|
||||
async fn get(&mut self, _key: &CacheKey) -> Option<&(CachedImage, ImageMetadata)> {
|
||||
unimplemented!()
|
||||
}
|
||||
|
||||
async fn put(&mut self, _key: CacheKey, _image: CachedImage, _metadata: ImageMetadata) {
|
||||
unimplemented!()
|
||||
}
|
||||
|
||||
async fn get_stream(
|
||||
&mut self,
|
||||
_key: &CacheKey,
|
||||
) -> Option<Result<FromFsStream, std::io::Error>> {
|
||||
unimplemented!()
|
||||
}
|
||||
|
||||
async fn put_stream(
|
||||
&mut self,
|
||||
_key: CacheKey,
|
||||
_image: impl Stream<Item = Result<Bytes, reqwest::Error>> + Unpin + Send + 'static,
|
||||
) {
|
||||
unimplemented!()
|
||||
}
|
||||
}
|
||||
|
|
@ -34,4 +34,6 @@ pub struct CliArgs {
|
|||
/// reasons.
|
||||
#[clap(long, env = "ENABLE_SERVER_STRING", takes_value = false)]
|
||||
pub enable_server_string: bool,
|
||||
#[clap(short, long, conflicts_with("memory_quota"))]
|
||||
pub low_memory: bool,
|
||||
}
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@ use std::{num::ParseIntError, sync::atomic::Ordering};
|
|||
use actix_web::rt::{spawn, time, System};
|
||||
use actix_web::web::{self, Data};
|
||||
use actix_web::{App, HttpServer};
|
||||
use cache::Cache;
|
||||
use cache::GenerationalCache;
|
||||
use clap::Clap;
|
||||
use config::CliArgs;
|
||||
use log::{debug, error, warn, LevelFilter};
|
||||
|
|
@ -25,7 +25,6 @@ use thiserror::Error;
|
|||
|
||||
mod cache;
|
||||
mod config;
|
||||
mod fs;
|
||||
mod ping;
|
||||
mod routes;
|
||||
mod state;
|
||||
|
|
@ -112,7 +111,7 @@ async fn main() -> Result<(), std::io::Error> {
|
|||
.service(routes::token_data_saver)
|
||||
.route("{tail:.*}", web::get().to(routes::default))
|
||||
.app_data(Data::from(Arc::clone(&data_1)))
|
||||
.app_data(Data::new(Mutex::new(Cache::new(
|
||||
.app_data(Data::new(Mutex::new(GenerationalCache::new(
|
||||
memory_max_size,
|
||||
disk_quota,
|
||||
cache_path.clone(),
|
||||
|
|
|
|||
|
|
@ -18,7 +18,7 @@ use serde::Deserialize;
|
|||
use sodiumoxide::crypto::box_::{open_precomputed, Nonce, PrecomputedKey, NONCEBYTES};
|
||||
use thiserror::Error;
|
||||
|
||||
use crate::cache::{Cache, CacheKey, CachedImage};
|
||||
use crate::cache::{Cache, CacheKey, CachedImage, GenerationalCache, ImageMetadata};
|
||||
use crate::client_api_version;
|
||||
use crate::config::{SEND_SERVER_VERSION, VALIDATE_TOKENS};
|
||||
use crate::state::RwLockServerState;
|
||||
|
|
@ -52,7 +52,7 @@ impl Responder for ServerResponse {
|
|||
#[get("/{token}/data/{chapter_hash}/{file_name}")]
|
||||
async fn token_data(
|
||||
state: Data<RwLockServerState>,
|
||||
cache: Data<Mutex<Cache>>,
|
||||
cache: Data<Mutex<GenerationalCache>>,
|
||||
path: Path<(String, String, String)>,
|
||||
) -> impl Responder {
|
||||
let (token, chapter_hash, file_name) = path.into_inner();
|
||||
|
|
@ -68,7 +68,7 @@ async fn token_data(
|
|||
#[get("/{token}/data-saver/{chapter_hash}/{file_name}")]
|
||||
async fn token_data_saver(
|
||||
state: Data<RwLockServerState>,
|
||||
cache: Data<Mutex<Cache>>,
|
||||
cache: Data<Mutex<GenerationalCache>>,
|
||||
path: Path<(String, String, String)>,
|
||||
) -> impl Responder {
|
||||
let (token, chapter_hash, file_name) = path.into_inner();
|
||||
|
|
@ -175,15 +175,15 @@ fn push_headers(builder: &mut HttpResponseBuilder) -> &mut HttpResponseBuilder {
|
|||
|
||||
async fn fetch_image(
|
||||
state: Data<RwLockServerState>,
|
||||
cache: Data<Mutex<Cache>>,
|
||||
cache: Data<Mutex<GenerationalCache>>,
|
||||
chapter_hash: String,
|
||||
file_name: String,
|
||||
is_data_saver: bool,
|
||||
) -> ServerResponse {
|
||||
let key = CacheKey(chapter_hash, file_name, is_data_saver);
|
||||
|
||||
if let Some(cached) = cache.lock().get(&key).await {
|
||||
return construct_response(cached);
|
||||
if let Some((image, metadata)) = cache.lock().get(&key).await {
|
||||
return construct_response(image, metadata);
|
||||
}
|
||||
|
||||
// It's important to not get a write lock before this request, else we're
|
||||
|
|
@ -207,7 +207,7 @@ async fn fetch_image(
|
|||
.await;
|
||||
|
||||
match resp {
|
||||
Ok(resp) => {
|
||||
Ok(mut resp) => {
|
||||
let content_type = resp.headers().get(CONTENT_TYPE);
|
||||
|
||||
let is_image = content_type
|
||||
|
|
@ -230,24 +230,21 @@ async fn fetch_image(
|
|||
);
|
||||
}
|
||||
|
||||
let headers = resp.headers();
|
||||
let content_type = headers.get(CONTENT_TYPE).map(AsRef::as_ref).map(Vec::from);
|
||||
let content_length = headers
|
||||
.get(CONTENT_LENGTH)
|
||||
.map(AsRef::as_ref)
|
||||
.map(Vec::from);
|
||||
let last_modified = headers.get(LAST_MODIFIED).map(AsRef::as_ref).map(Vec::from);
|
||||
let (content_type, length, last_mod) = {
|
||||
let headers = resp.headers_mut();
|
||||
(
|
||||
headers.remove(CONTENT_TYPE),
|
||||
headers.remove(CONTENT_LENGTH),
|
||||
headers.remove(LAST_MODIFIED),
|
||||
)
|
||||
};
|
||||
let body = resp.bytes().await;
|
||||
match body {
|
||||
Ok(bytes) => {
|
||||
let cached = CachedImage {
|
||||
data: bytes.to_vec(),
|
||||
content_type,
|
||||
content_length,
|
||||
last_modified,
|
||||
};
|
||||
let resp = construct_response(&cached);
|
||||
cache.lock().put(key, cached).await;
|
||||
let cached = ImageMetadata::new(content_type, length, last_mod).unwrap();
|
||||
let image = CachedImage(bytes);
|
||||
let resp = construct_response(&image, &cached);
|
||||
cache.lock().put(key, image, cached).await;
|
||||
return resp;
|
||||
}
|
||||
Err(e) => {
|
||||
|
|
@ -267,22 +264,22 @@ async fn fetch_image(
|
|||
}
|
||||
}
|
||||
|
||||
fn construct_response(cached: &CachedImage) -> ServerResponse {
|
||||
fn construct_response(cached: &CachedImage, metadata: &ImageMetadata) -> ServerResponse {
|
||||
let data: Vec<Result<Bytes, Infallible>> = cached
|
||||
.data
|
||||
.0
|
||||
.to_vec()
|
||||
.chunks(1460) // TCP MSS default size
|
||||
.map(|v| Ok(Bytes::from(v.to_vec())))
|
||||
.collect();
|
||||
let mut resp = HttpResponse::Ok();
|
||||
if let Some(content_type) = &cached.content_type {
|
||||
if let Some(content_type) = &metadata.content_type {
|
||||
resp.append_header((CONTENT_TYPE, &**content_type));
|
||||
}
|
||||
if let Some(content_length) = &cached.content_length {
|
||||
resp.append_header((CONTENT_LENGTH, &**content_length));
|
||||
if let Some(content_length) = &metadata.content_length {
|
||||
resp.append_header((CONTENT_LENGTH, content_length.to_string()));
|
||||
}
|
||||
if let Some(last_modified) = &cached.last_modified {
|
||||
resp.append_header((LAST_MODIFIED, &**last_modified));
|
||||
if let Some(last_modified) = &metadata.last_modified {
|
||||
resp.append_header((LAST_MODIFIED, last_modified.to_rfc2822()));
|
||||
}
|
||||
|
||||
ServerResponse::HttpResponse(push_headers(&mut resp).streaming(stream::iter(data)))
|
||||
|
|
|
|||
Loading…
Reference in New Issue