From 118a334c86f2a511d11d10d4a8ca46d468da4514 Mon Sep 17 00:00:00 2001
From: figsoda <figsoda@pm.me>
Date: Mon, 30 Jan 2023 18:54:40 -0500
Subject: [PATCH 1/4] bump dependencies

---
 Cargo.lock | 116 ++++++++++++++++++++++++-----------------------------
 Cargo.toml |  16 ++++----
 2 files changed, 61 insertions(+), 71 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index f83831e33..fdcaa8d36 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -19,11 +19,11 @@ dependencies = [
 
 [[package]]
 name = "assert_cmd"
-version = "2.0.7"
+version = "2.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa3d466004a8b4cb1bc34044240a2fd29d17607e2e3bd613eb44fd48e8100da3"
+checksum = "9834fcc22e0874394a010230586367d4a3e9f11b560f469262678547e1d2575e"
 dependencies = [
- "bstr 1.1.0",
+ "bstr",
  "doc-comment",
  "predicates",
  "predicates-core",
@@ -69,15 +69,6 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
-[[package]]
-name = "bstr"
-version = "0.2.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba3569f383e8f1598449f1a423e72e99569137b47740b1da11ef19af3d5c3223"
-dependencies = [
- "memchr",
-]
-
 [[package]]
 name = "bstr"
 version = "1.1.0"
@@ -119,9 +110,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.78"
+version = "1.0.79"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"
+checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
 dependencies = [
  "jobserver",
 ]
@@ -145,9 +136,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "clap"
-version = "4.0.32"
+version = "4.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7db700bc935f9e43e88d00b0850dae18a63773cfbec6d8e070fccf7fef89a39"
+checksum = "f13b9c79b5d1dd500d20ef541215a6423c75829ef43117e1b4d17fd8af0b5d76"
 dependencies = [
  "bitflags",
  "clap_derive",
@@ -160,18 +151,18 @@ dependencies = [
 
 [[package]]
 name = "clap_complete"
-version = "4.0.7"
+version = "4.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10861370d2ba66b0f5989f83ebf35db6421713fd92351790e7fdd6c36774c56b"
+checksum = "3d6540eedc41f8a5a76cf3d8d458057dcdf817be4158a55b5f861f7a5483de75"
 dependencies = [
  "clap",
 ]
 
 [[package]]
 name = "clap_derive"
-version = "4.0.21"
+version = "4.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0177313f9f02afc995627906bbd8967e2be069f5261954222dac78290c2b9014"
+checksum = "684a277d672e91966334af371f1a7b5833f9aa00b07c84e92fbce95e00208ce8"
 dependencies = [
  "heck",
  "proc-macro-error",
@@ -182,18 +173,18 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.3.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d4198f73e42b4936b35b5bb248d81d2b595ecb170da0bac7655c54eedfa8da8"
+checksum = "783fe232adfca04f90f56201b26d79682d4cd2625e0bc7290b95123afe558ade"
 dependencies = [
  "os_str_bytes",
 ]
 
 [[package]]
 name = "clap_mangen"
-version = "0.2.6"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "904eb24d05ad587557e0f484ddce5c737c30cf81372badb16d13e41c4b8340b1"
+checksum = "eb258c6232b4d728d13d6072656627924c16707aae6267cd5a1ea05abff9a25c"
 dependencies = [
  "clap",
  "roff",
@@ -265,9 +256,9 @@ checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"
 
 [[package]]
 name = "either"
-version = "1.8.0"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
+checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
 
 [[package]]
 name = "errno"
@@ -347,12 +338,12 @@ dependencies = [
 
 [[package]]
 name = "globset"
-version = "0.4.9"
+version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a1e17342619edbc21a964c2afbeb6c820c6a2560032872f397bb97ea127bd0a"
+checksum = "029d74589adefde59de1a0c4f4732695c32805624aec7b68d91503d4dba79afc"
 dependencies = [
  "aho-corasick",
- "bstr 0.2.17",
+ "bstr",
  "fnv",
  "log",
  "regex",
@@ -384,11 +375,10 @@ dependencies = [
 
 [[package]]
 name = "ignore"
-version = "0.4.18"
+version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "713f1b139373f96a2e0ce3ac931cd01ee973c3c5dd7c40c0c2efe96ad2b6751d"
+checksum = "dbe7873dab538a9a44ad79ede1faf5f30d49f9a5c883ddbab48bce81b64b7492"
 dependencies = [
- "crossbeam-utils",
  "globset",
  "lazy_static",
  "log",
@@ -420,9 +410,9 @@ dependencies = [
 
 [[package]]
 name = "io-lifetimes"
-version = "1.0.3"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46112a93252b123d31a119a8d1a1ac19deac4fac6e0e8b0df58f0d4e5870e63c"
+checksum = "e7d6c6f8c91b4b9ed43484ad1a938e393caf35960fce7f82a040497207bd8e9e"
 dependencies = [
  "libc",
  "windows-sys",
@@ -598,7 +588,7 @@ version = "0.4.1"
 dependencies = [
  "assert_cmd",
  "atty",
- "bstr 1.1.0",
+ "bstr",
  "bzip2",
  "clap",
  "clap_complete",
@@ -721,9 +711,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.49"
+version = "1.0.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57a8eca9f9c4ffde41714334dee777596264c7825420f521abc92b5b5deb63a5"
+checksum = "6ef7d57beacfaf2d8aee5937dab7b7f28de3cb8b1828479bb5de2a7106f2bae2"
 dependencies = [
  "unicode-ident",
 ]
@@ -820,9 +810,9 @@ dependencies = [
 
 [[package]]
 name = "rayon-core"
-version = "1.10.1"
+version = "1.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cac410af5d00ab6884528b4ab69d1e8e146e8d471201800fa1b4524126de6ad3"
+checksum = "356a0625f1954f730c0201cdab48611198dc6ce21f4acff55089b5a78e6e835b"
 dependencies = [
  "crossbeam-channel",
  "crossbeam-deque",
@@ -841,9 +831,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.7.0"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e076559ef8e241f2ae3479e36f97bd5741c0330689e217ad51ce2c76808b868a"
+checksum = "48aaa5748ba571fb95cd2c85c09f629215d3a6ece942baa100950af03a34f733"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -879,9 +869,9 @@ checksum = "b833d8d034ea094b1ea68aa6d5c740e0d04bad9d16568d08ba6f76823a114316"
 
 [[package]]
 name = "rustix"
-version = "0.36.6"
+version = "0.36.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4feacf7db682c6c329c4ede12649cd36ecab0f3be5b7d74e6a20304725db4549"
+checksum = "d4fdebc4b395b7fbb9ab11e462e20ed9051e7b16e42d24042c776eca0ac81b03"
 dependencies = [
  "bitflags",
  "errno",
@@ -997,9 +987,9 @@ dependencies = [
 
 [[package]]
 name = "termcolor"
-version = "1.1.3"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
+checksum = "be55cf8942feac5c765c2c993422806843c9a9a45d4d5c407ad6dd2ea95eb9b6"
 dependencies = [
  "winapi-util",
 ]
@@ -1012,9 +1002,9 @@ checksum = "95059e91184749cb66be6dc994f67f182b6d897cb3df74a5bf66b5e709295fd8"
 
 [[package]]
 name = "test-strategy"
-version = "0.2.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62d6408d1406657be2f9d1701fbae379331d30d2f6e92050710edb0d34eeb480"
+checksum = "61348cf95c0dfa12f0b6155f5b564d2806f518620a28263280ae357b41c96b4a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1162,45 +1152,45 @@ dependencies = [
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
+checksum = "8c9864e83243fdec7fc9c5444389dcbbfd258f745e7853198f365e3c4968a608"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
+checksum = "4c8b1b673ffc16c47a9ff48570a9d85e25d265735c503681332589af6253c6c7"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
+checksum = "de3887528ad530ba7bdbb1faa8275ec7a1155a45ffa57c37993960277145d640"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
+checksum = "bf4d1122317eddd6ff351aa852118a2418ad4214e6613a50e0191f7004372605"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
+checksum = "c1040f221285e17ebccbc2591ffdc2d44ee1f9186324dd3e84e99ac68d699c45"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
+checksum = "628bfdf232daa22b0d64fdb62b09fcc36bb01f05a3939e20ab73aaf9470d0463"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.42.0"
+version = "0.42.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
+checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd"
 
 [[package]]
 name = "xattr"
@@ -1235,9 +1225,9 @@ dependencies = [
 
 [[package]]
 name = "zstd"
-version = "0.12.1+zstd.1.5.2"
+version = "0.12.2+zstd.1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c947d2adc84ff9a59f2e3c03b81aa4128acf28d6ad7d56273f7e8af14e47bea"
+checksum = "e9262a83dc741c0b0ffec209881b45dbc232c21b02a2b9cb1adb93266e41303d"
 dependencies = [
  "zstd-safe",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index dab4eec5e..3ffc54d74 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,11 +14,11 @@ description = "A command-line utility for easily compressing and decompressing f
 atty = "0.2.14"
 bstr = { version = "1.1.0", default-features = false, features = ["std"] }
 bzip2 = "0.4.4"
-clap = { version = "4.0.32", features = ["derive", "env"] }
+clap = { version = "4.1.4", features = ["derive", "env"] }
 filetime = "0.2.19"
 flate2 = { version = "1.0.25", default-features = false }
 fs-err = "2.9.0"
-ignore = "0.4.18"
+ignore = "0.4.20"
 libc = "0.2.139"
 linked-hash-map = "0.5.6"
 lzzzz = "1.0.4"
@@ -31,7 +31,7 @@ tempfile = "3.3.0"
 ubyte = { version = "0.10.3", default-features = false }
 xz2 = "0.1.7"
 zip = { version = "0.6.3", default-features = false, features = ["time"] }
-zstd = { version = "0.12.1", default-features = false }
+zstd = { version = "0.12.2", default-features = false }
 # zstd-sys > 2.0.1 unconditionally enables thin LTO and causes CI to fail
 # https://github.com/gyscos/zstd-rs/pull/155
 zstd-sys = "=2.0.1"
@@ -43,17 +43,17 @@ time = { version = "0.3.17", default-features = false }
 is_executable = "1.0.1"
 
 [build-dependencies]
-clap = { version = "4.0.32", features = ["derive", "env", "string"] }
-clap_complete = "4.0.7"
-clap_mangen = "0.2.6"
+clap = { version = "4.1.4", features = ["derive", "env", "string"] }
+clap_complete = "4.1.1"
+clap_mangen = "0.2.7"
 
 [dev-dependencies]
-assert_cmd = "2.0.7"
+assert_cmd = "2.0.8"
 infer = "0.12.0"
 parse-display = "0.8.0"
 proptest = "1.0.0"
 rand = { version = "0.8.5", default-features = false, features = ["small_rng", "std"] }
-test-strategy = "0.2.1"
+test-strategy = "0.3.0"
 
 [features]
 default = ["flate2/zlib", "zip/deflate-zlib", "zstd/thin"]

From 5abdd5fc96e1eee012765c77f8fec717adf338dd Mon Sep 17 00:00:00 2001
From: figsoda <figsoda@pm.me>
Date: Mon, 30 Jan 2023 19:10:12 -0500
Subject: [PATCH 2/4] multi-threaded gzip compression using gzp

---
 Cargo.lock               | 199 +++++++++++++++++++++++++++++++++++++++
 Cargo.toml               |   3 +-
 src/commands/compress.rs |  20 ++--
 3 files changed, 212 insertions(+), 10 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index fdcaa8d36..3bb84a57f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -81,12 +81,24 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "bumpalo"
+version = "3.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0d261e256854913907f67ed06efbc3338dfe6179796deefc1ff763fc1aee5535"
+
 [[package]]
 name = "byteorder"
 version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
+[[package]]
+name = "bytes"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dfb24e866b15a1af2a1b663f10c6b6b8f397a84aadb828f12e5b289ec23a3a3c"
+
 [[package]]
 name = "bzip2"
 version = "0.4.4"
@@ -190,6 +202,17 @@ dependencies = [
  "roff",
 ]
 
+[[package]]
+name = "core_affinity"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4436406e93f52cce33bfba4be067a9f7229da44a634c385e4b22cdfaca5f84cc"
+dependencies = [
+ "libc",
+ "num_cpus",
+ "winapi",
+]
+
 [[package]]
 name = "crc32fast"
 version = "1.3.2"
@@ -313,6 +336,19 @@ dependencies = [
  "miniz_oxide",
 ]
 
+[[package]]
+name = "flume"
+version = "0.10.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1657b4441c3403d9f7b3409e47575237dac27b1b5726df654a6ecbf92f0f7577"
+dependencies = [
+ "futures-core",
+ "futures-sink",
+ "nanorand",
+ "pin-project",
+ "spin",
+]
+
 [[package]]
 name = "fnv"
 version = "1.0.7"
@@ -325,6 +361,18 @@ version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0845fa252299212f0389d64ba26f34fa32cfe41588355f21ed507c59a0f64541"
 
+[[package]]
+name = "futures-core"
+version = "0.3.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec90ff4d0fe1f57d600049061dc6bb68ed03c7d2fbd697274c41805dcb3f8608"
+
+[[package]]
+name = "futures-sink"
+version = "0.3.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f310820bb3e8cfd46c80db4d7fb8353e15dfff853a127158425f31e0be6c8364"
+
 [[package]]
 name = "getrandom"
 version = "0.2.8"
@@ -332,8 +380,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
 dependencies = [
  "cfg-if",
+ "js-sys",
  "libc",
  "wasi",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -349,6 +399,22 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "gzp"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7c65d1899521a11810501b50b898464d133e1afc96703cff57726964cfa7baf"
+dependencies = [
+ "byteorder",
+ "bytes",
+ "core_affinity",
+ "flate2",
+ "flume",
+ "libz-sys",
+ "num_cpus",
+ "thiserror",
+]
+
 [[package]]
 name = "heck"
 version = "0.4.0"
@@ -463,6 +529,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "js-sys"
+version = "0.3.60"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49409df3e3bf0856b916e2ceaca09ee28e6871cf7d9ce97a692cacfdb2a25a47"
+dependencies = [
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -482,6 +557,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9702761c3935f8cc2f101793272e202c72b99da8f4224a19ddcf1279a6450bbf"
 dependencies = [
  "cc",
+ "libc",
  "pkg-config",
  "vcpkg",
 ]
@@ -498,6 +574,16 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4"
 
+[[package]]
+name = "lock_api"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "435011366fe56583b16cf956f9df0095b405b82d76425bc8981c0e22e60ec4df"
+dependencies = [
+ "autocfg",
+ "scopeguard",
+]
+
 [[package]]
 name = "log"
 version = "0.4.17"
@@ -551,6 +637,15 @@ dependencies = [
  "adler",
 ]
 
+[[package]]
+name = "nanorand"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a51313c5820b0b02bd422f4b44776fbf47961755c74ce64afc73bfad10226c3"
+dependencies = [
+ "getrandom",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.15"
@@ -596,6 +691,7 @@ dependencies = [
  "filetime",
  "flate2",
  "fs-err",
+ "gzp",
  "ignore",
  "infer",
  "is_executable",
@@ -646,6 +742,26 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "pin-project"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad29a609b6bcd67fee905812e544992d216af9d755757c05ed2d0e15a74c6ecc"
+dependencies = [
+ "pin-project-internal",
+]
+
+[[package]]
+name = "pin-project-internal"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "069bdb1e05adc7a8990dce9cc75370895fbe4e3d58b9b73bf1aee56359344a55"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "pkg-config"
 version = "0.3.26"
@@ -920,6 +1036,15 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5e9f0ab6ef7eb7353d9119c170a436d1bf248eea575ac42d19d12f4e34130831"
 
+[[package]]
+name = "spin"
+version = "0.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f6002a767bff9e83f8eeecf883ecb8011875a21ae8da43bffb817a57e78cc09"
+dependencies = [
+ "lock_api",
+]
+
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -1012,6 +1137,26 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "thiserror"
+version = "1.0.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6a9cd18aa97d5c45c6603caea1da6628790b37f7a34b6ca89522331c5180fed0"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fb327af4685e4d03fa8cbcf1716380da910eeb2bb8be417e7f9fd3fb164f36f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "thread_local"
 version = "1.1.4"
@@ -1104,6 +1249,60 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eaf9f5aceeec8be17c128b2e93e031fb8a4d469bb9c4ae2d7dc1888b26887268"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c8ffb332579b0557b52d268b91feab8df3615f265d5270fec2a8c95b17c1142"
+dependencies = [
+ "bumpalo",
+ "log",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "052be0f94026e6cbc75cdefc9bae13fd6052cdcaf532fa6c45e7ae33a1e6c810"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07bc0c051dc5f23e307b13285f9d75df86bfdf816c5721e573dec1f9b8aa193c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c38c045535d93ec4f0b4defec448e4291638ee608530863b1e2ba115d4fff7f"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
diff --git a/Cargo.toml b/Cargo.toml
index 3ffc54d74..c123e4974 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,6 +18,7 @@ clap = { version = "4.1.4", features = ["derive", "env"] }
 filetime = "0.2.19"
 flate2 = { version = "1.0.25", default-features = false }
 fs-err = "2.9.0"
+gzp = { version = "0.11.3", default-features = false }
 ignore = "0.4.20"
 libc = "0.2.139"
 linked-hash-map = "0.5.6"
@@ -56,7 +57,7 @@ rand = { version = "0.8.5", default-features = false, features = ["small_rng", "
 test-strategy = "0.3.0"
 
 [features]
-default = ["flate2/zlib", "zip/deflate-zlib", "zstd/thin"]
+default = ["flate2/zlib", "gzp/deflate_zlib", "zip/deflate-zlib", "zstd/thin"]
 
 [profile.release]
 lto = true
diff --git a/src/commands/compress.rs b/src/commands/compress.rs
index 12f6eef98..50836eb73 100644
--- a/src/commands/compress.rs
+++ b/src/commands/compress.rs
@@ -8,11 +8,7 @@ use fs_err as fs;
 use crate::{
     archive,
     commands::warn_user_about_loading_zip_in_memory,
-    extension::{
-        split_first_compression_format,
-        CompressionFormat::{self, *},
-        Extension,
-    },
+    extension::{split_first_compression_format, CompressionFormat::*, Extension},
     utils::{user_wants_to_continue, FileVisibilityPolicy},
     QuestionAction, QuestionPolicy, BUFFER_CAPACITY,
 };
@@ -39,12 +35,18 @@ pub fn compress_files(
     // If the input files contain a directory, then the total size will be underestimated
     let file_writer = BufWriter::with_capacity(BUFFER_CAPACITY, output_file);
 
-    let mut writer: Box<dyn Write> = Box::new(file_writer);
+    let mut writer: Box<dyn Send + Write> = Box::new(file_writer);
 
     // Grab previous encoder and wrap it inside of a new one
-    let chain_writer_encoder = |format: &CompressionFormat, encoder: Box<dyn Write>| -> crate::Result<Box<dyn Write>> {
-        let encoder: Box<dyn Write> = match format {
-            Gzip => Box::new(flate2::write::GzEncoder::new(encoder, Default::default())),
+    let chain_writer_encoder = |format: &_, encoder| -> crate::Result<_> {
+        let encoder: Box<dyn Send + Write> = match format {
+            Gzip => Box::new(
+                // by default, ParCompress uses a default compression level of 3
+                // instead of the regular default that flate2 uses
+                gzp::par::compress::ParCompress::<gzp::deflate::Gzip>::builder()
+                    .compression_level(Default::default())
+                    .from_writer(encoder),
+            ),
             Bzip => Box::new(bzip2::write::BzEncoder::new(encoder, Default::default())),
             Lz4 => Box::new(lzzzz::lz4f::WriteCompressor::new(encoder, Default::default())?),
             Lzma => Box::new(xz2::write::XzEncoder::new(encoder, 6)),

From 2d5dc06a4fdbd0504af5a03a32accfd8ae137b78 Mon Sep 17 00:00:00 2001
From: figsoda <figsoda@pm.me>
Date: Mon, 30 Jan 2023 19:13:00 -0500
Subject: [PATCH 3/4] multi-threaded snap compression using gzp

---
 Cargo.lock               | 1 +
 Cargo.toml               | 2 +-
 src/commands/compress.rs | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 3bb84a57f..a408cb7e7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -412,6 +412,7 @@ dependencies = [
  "flume",
  "libz-sys",
  "num_cpus",
+ "snap",
  "thiserror",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index c123e4974..6723e1985 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ clap = { version = "4.1.4", features = ["derive", "env"] }
 filetime = "0.2.19"
 flate2 = { version = "1.0.25", default-features = false }
 fs-err = "2.9.0"
-gzp = { version = "0.11.3", default-features = false }
+gzp = { version = "0.11.3", default-features = false, features = ["snappy_default"] }
 ignore = "0.4.20"
 libc = "0.2.139"
 linked-hash-map = "0.5.6"
diff --git a/src/commands/compress.rs b/src/commands/compress.rs
index 50836eb73..fb69a7534 100644
--- a/src/commands/compress.rs
+++ b/src/commands/compress.rs
@@ -50,7 +50,7 @@ pub fn compress_files(
             Bzip => Box::new(bzip2::write::BzEncoder::new(encoder, Default::default())),
             Lz4 => Box::new(lzzzz::lz4f::WriteCompressor::new(encoder, Default::default())?),
             Lzma => Box::new(xz2::write::XzEncoder::new(encoder, 6)),
-            Snappy => Box::new(snap::write::FrameEncoder::new(encoder)),
+            Snappy => Box::new(gzp::par::compress::ParCompress::<gzp::snap::Snap>::builder().from_writer(encoder)),
             Zstd => {
                 let zstd_encoder = zstd::stream::write::Encoder::new(encoder, Default::default());
                 // Safety:

From ce7246acab5211205336607fafbc33bc60f4a64a Mon Sep 17 00:00:00 2001
From: figsoda <figsoda@pm.me>
Date: Mon, 30 Jan 2023 21:02:32 -0500
Subject: [PATCH 4/4] add changelog entry

---
 CHANGELOG.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index dacd571b5..e058e618c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,10 @@ Categories Used:
 
 ## [Unreleased](https://github.com/ouch-org/ouch/compare/0.4.1...HEAD)
 
+### Improvements
+
+- Multi-threaded compression for gzip and snappy using gzp [\#348](https://github.com/ouch-org/ouch/pull/348) ([figsoda](https://github.com/figsoda))
+
 ## [0.4.1](https://github.com/ouch-org/ouch/compare/0.4.0...0.4.1)
 
 ### New Features