From 91efc2d5df33848b1a17e5614634b8e2ae738fa9 Mon Sep 17 00:00:00 2001
From: Julien ALEXANDRE <22328659+ndrpnt@users.noreply.github.com>
Date: Mon, 14 Nov 2022 00:47:03 +0100
Subject: [PATCH] feat: add WASM hook system and a dummy plugin

---
 Cargo.lock              | 1380 ++++++++++++++++++++++++++++++++++++++-
 Cargo.toml              |   14 +
 build.rs                |    5 +
 hook/.cargo/config.toml |    2 +
 hook/Cargo.lock         |    7 +
 hook/Cargo.toml         |   11 +
 hook/build.rs           |    5 +
 hook/src/main.rs        |   27 +
 proto/hook.proto        |   11 +
 src/cli.rs              |   56 +-
 10 files changed, 1499 insertions(+), 19 deletions(-)
 create mode 100644 build.rs
 create mode 100644 hook/.cargo/config.toml
 create mode 100644 hook/Cargo.lock
 create mode 100644 hook/Cargo.toml
 create mode 100644 hook/build.rs
 create mode 100644 hook/src/main.rs
 create mode 100644 proto/hook.proto

diff --git a/Cargo.lock b/Cargo.lock
index 1ecab9f..2010405 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,32 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "addr2line"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9ecd88a8c8378ca913a680cd98f0f13ac67383d35993f86c90a70e3f137816b"
+dependencies = [
+ "gimli",
+]
+
+[[package]]
+name = "adler"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
+
+[[package]]
+name = "ahash"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcb51a0695d8f838b1ee009b3fbf66bda078cd64590202a864a8f3e8c4315c47"
+dependencies = [
+ "getrandom",
+ "once_cell",
+ "version_check",
+]
+
 [[package]]
 name = "aho-corasick"
 version = "0.7.18"
@@ -45,6 +71,17 @@ dependencies = [
  "tempfile",
 ]
 
+[[package]]
+name = "async-trait"
+version = "0.1.58"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1e805d94e6b5001b651426cf4cd446b1ab5f319d27bab5c644f61de0a804360c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -62,6 +99,27 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
+[[package]]
+name = "backtrace"
+version = "0.3.66"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cab84319d616cfb654d03394f38ab7e6f0919e181b1b57e1fd15e7fb4077d9a7"
+dependencies = [
+ "addr2line",
+ "cc",
+ "cfg-if 1.0.0",
+ "libc",
+ "miniz_oxide",
+ "object",
+ "rustc-demangle",
+]
+
+[[package]]
+name = "base-x"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4cbbc9d0964165b47557570cce6c952866c2678457aca742aafc9fb771d30270"
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -88,11 +146,56 @@ dependencies = [
  "regex-automata",
 ]
 
+[[package]]
+name = "bumpalo"
+version = "3.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "572f695136211188308f16ad2ca5c851a712c464060ae6974944458eb83880ba"
+
+[[package]]
+name = "bytecheck"
+version = "0.6.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d11cac2c12b5adc6570dad2ee1b87eff4955dac476fe12d81e5fdd352e52406f"
+dependencies = [
+ "bytecheck_derive",
+ "ptr_meta",
+]
+
+[[package]]
+name = "bytecheck_derive"
+version = "0.6.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "13e576ebe98e605500b3c8041bb888e966653577172df6dd97398714eb30b9bf"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "byteorder"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+
 [[package]]
 name = "bytes"
-version = "1.1.0"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec8a7b6a70fde80372154c65702f00a0f56f3e1c36abbc6c440484be248856db"
+
+[[package]]
+name = "cc"
+version = "1.0.76"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
+checksum = "76a284da2e6fe2092f2353e51713435363112dfd60030e22add80be333fb928f"
+
+[[package]]
+name = "cfg-if"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
 [[package]]
 name = "cfg-if"
@@ -131,7 +234,7 @@ version = "4.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c42f169caba89a7d512b5418b09864543eeb4d497416c917d7137863bd2076ad"
 dependencies = [
- "heck",
+ "heck 0.4.0",
  "proc-macro-error",
  "proc-macro2",
  "quote",
@@ -174,6 +277,12 @@ version = "0.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6417fe6fc03a8b533fd2177742eeb39a90c7233eedec7bac96d4d6b69a09449"
 
+[[package]]
+name = "const_fn"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fbdcdcb6d86f71c5e97409ad45898af11cbc995b4ee8112d59095a28d376c935"
+
 [[package]]
 name = "content_inspector"
 version = "0.2.4"
@@ -183,6 +292,19 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "corosensei"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9847f90f32a50b0dcbd68bc23ff242798b13080b97b0569f6ed96a45ce4cf2cd"
+dependencies = [
+ "autocfg",
+ "cfg-if 1.0.0",
+ "libc",
+ "scopeguard",
+ "windows-sys",
+]
+
 [[package]]
 name = "cpufeatures"
 version = "0.2.2"
@@ -192,13 +314,79 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "cranelift-bforest"
+version = "0.86.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "529ffacce2249ac60edba2941672dfedf3d96558b415d0d8083cd007456e0f55"
+dependencies = [
+ "cranelift-entity",
+]
+
+[[package]]
+name = "cranelift-codegen"
+version = "0.86.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "427d105f617efc8cb55f8d036a7fded2e227892d8780b4985e5551f8d27c4a92"
+dependencies = [
+ "cranelift-bforest",
+ "cranelift-codegen-meta",
+ "cranelift-codegen-shared",
+ "cranelift-entity",
+ "cranelift-isle",
+ "gimli",
+ "log",
+ "regalloc2",
+ "smallvec",
+ "target-lexicon",
+]
+
+[[package]]
+name = "cranelift-codegen-meta"
+version = "0.86.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "551674bed85b838d45358e3eab4f0ffaa6790c70dc08184204b9a54b41cdb7d1"
+dependencies = [
+ "cranelift-codegen-shared",
+]
+
+[[package]]
+name = "cranelift-codegen-shared"
+version = "0.86.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b3a63ae57498c3eb495360944a33571754241e15e47e3bcae6082f40fec5866"
+
+[[package]]
+name = "cranelift-entity"
+version = "0.86.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11aa8aa624c72cc1c94ea3d0739fa61248260b5b14d3646f51593a88d67f3e6e"
+
+[[package]]
+name = "cranelift-frontend"
+version = "0.86.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "544ee8f4d1c9559c9aa6d46e7aaeac4a13856d620561094f35527356c7d21bd0"
+dependencies = [
+ "cranelift-codegen",
+ "log",
+ "smallvec",
+ "target-lexicon",
+]
+
+[[package]]
+name = "cranelift-isle"
+version = "0.86.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed16b14363d929b8c37e3c557d0a7396791b383ecc302141643c054343170aad"
+
 [[package]]
 name = "crossbeam-channel"
 version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5aaa7bd5fb665c6864b5f963dd9097905c54125909c7aa94c9e18507cdbe6c53"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "crossbeam-utils",
 ]
 
@@ -208,7 +396,7 @@ version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6455c0ca19f0d2fbf751b908d5c55c1f5cbc65e03c4225427254b46890bdde1e"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "crossbeam-epoch",
  "crossbeam-utils",
 ]
@@ -220,7 +408,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1145cf131a2c6ba0615079ab6a638f7e1973ac9c2634fcbeaaad6114246efe8c"
 dependencies = [
  "autocfg",
- "cfg-if",
+ "cfg-if 1.0.0",
  "crossbeam-utils",
  "lazy_static",
  "memoffset",
@@ -233,7 +421,7 @@ version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0bf124c720b7686e3c2663cf54062ab0f68a88af2fb6a030e87e30bf721fcb38"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "lazy_static",
 ]
 
@@ -247,6 +435,51 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "darling"
+version = "0.14.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0dd3cd20dc6b5a876612a6e5accfe7f3dd883db6d07acfbf14c128f61550dfa"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.14.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a784d2ccaf7c98501746bf0be29b2022ba41fd62a2e622af997a03e9f972859f"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.14.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7618812407e9402654622dd402b0a89dff9ba93badd6540781526117b92aab7e"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "derivative"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fcc3dd5e9e9c0b295d6e1e4d811fb6f157d5ffd784b8d202fc62eac8035a770b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "difflib"
 version = "0.4.0"
@@ -263,6 +496,12 @@ dependencies = [
  "crypto-common",
 ]
 
+[[package]]
+name = "discard"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "212d0f5754cb6769937f4501cc0e67f4f4483c8d2c3e1e922ee9edbe4ab4c7c0"
+
 [[package]]
 name = "doc-comment"
 version = "0.3.3"
@@ -281,6 +520,47 @@ version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
 
+[[package]]
+name = "enum-iterator"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4eeac5c5edb79e4e39fe8439ef35207780a11f69c52cbe424ce3dfad4cb78de6"
+dependencies = [
+ "enum-iterator-derive",
+]
+
+[[package]]
+name = "enum-iterator-derive"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c134c37760b27a871ba422106eedbb8247da973a09e82558bf26d619c882b159"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "enumset"
+version = "1.0.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19be8061a06ab6f3a6cf21106c873578bf01bd42ad15e0311a9c76161cb1c753"
+dependencies = [
+ "enumset_derive",
+]
+
+[[package]]
+name = "enumset_derive"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03e7b551eba279bf0fa88b83a46330168c1560a52a94f5126f892f0b364ab3e0"
+dependencies = [
+ "darling",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "env_logger"
 version = "0.9.0"
@@ -294,6 +574,12 @@ dependencies = [
  "termcolor",
 ]
 
+[[package]]
+name = "fallible-iterator"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4443176a9f2c162692bd3d352d745ef9413eec5782a80d8fd6f8a1ac692a07f7"
+
 [[package]]
 name = "fastrand"
 version = "1.7.0"
@@ -309,12 +595,18 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0408e2626025178a6a7f7ffc05a25bc47103229f19c113755de7bf63816290c"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
  "redox_syscall",
  "winapi",
 ]
 
+[[package]]
+name = "fixedbitset"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"
+
 [[package]]
 name = "float-cmp"
 version = "0.9.0"
@@ -330,6 +622,24 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "fxhash"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c31b6d751ae2c7f11320402d34e41349dd1016f8d5d45e48c4312bc8625af50c"
+dependencies = [
+ "byteorder",
+]
+
+[[package]]
+name = "generational-arena"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e1d3b771574f62d0548cee0ad9057857e9fc25d7a3335f140c84f6acd0bf601"
+dependencies = [
+ "cfg-if 0.1.10",
+]
+
 [[package]]
 name = "generic-array"
 version = "0.14.5"
@@ -340,6 +650,28 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "gimli"
+version = "0.26.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22030e2c5a68ec659fde1e949a745124b48e6fa8b045b7ed5bd1fe4ccc5c4e5d"
+dependencies = [
+ "fallible-iterator",
+ "indexmap",
+ "stable_deref_trait",
+]
+
 [[package]]
 name = "glob"
 version = "0.3.0"
@@ -376,6 +708,24 @@ version = "0.11.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
 
+[[package]]
+name = "hashbrown"
+version = "0.12.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
+dependencies = [
+ "ahash",
+]
+
+[[package]]
+name = "heck"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d621efb26863f0e9924c6ac577e8275e5e6b77455db64ffa6c65c904e9e132c"
+dependencies = [
+ "unicode-segmentation",
+]
+
 [[package]]
 name = "heck"
 version = "0.4.0"
@@ -391,6 +741,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "hook"
+version = "0.1.0"
+dependencies = [
+ "bytes",
+ "prost",
+ "prost-build",
+]
+
 [[package]]
 name = "humantime"
 version = "2.1.0"
@@ -407,6 +766,18 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "id-arena"
+version = "2.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "25a2bc672d1148e28034f176e01fffebb08b35768468cc954630da77a1449005"
+
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
 [[package]]
 name = "ignore"
 version = "0.4.18"
@@ -432,7 +803,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0f647032dfaa1f8b6dc29bd3edb7bbef4861b8b8007ebb118d6db284fd59f6ee"
 dependencies = [
  "autocfg",
- "hashbrown",
+ "hashbrown 0.11.2",
 ]
 
 [[package]]
@@ -441,7 +812,7 @@ version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 ]
 
 [[package]]
@@ -453,12 +824,33 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4217ad341ebadf8d8e724e264f13e593e0648f5b3e94b3896a5df283be015ecc"
+
+[[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"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
+[[package]]
+name = "leb128"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "884e2677b40cc8c339eaefcb701c32ef1fd2493d71118dc0ca4b6a736c93bd67"
+
 [[package]]
 name = "libc"
 version = "0.2.126"
@@ -471,7 +863,16 @@ version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
+]
+
+[[package]]
+name = "mach"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b823e83b2affd8f40a9ee8c29dbc56404c1e34cd2710921f2801e2cf29527afa"
+dependencies = [
+ "libc",
 ]
 
 [[package]]
@@ -480,6 +881,15 @@ version = "2.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
+[[package]]
+name = "memmap2"
+version = "0.5.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4b182332558b18d807c4ce1ca8ca983b34c3ee32765e47b3f0f69b90355cc1dc"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memoffset"
 version = "0.6.5"
@@ -489,6 +899,27 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "miniz_oxide"
+version = "0.5.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "96590ba8f175222643a85693f33d26e9c8a015f599c216509b1a6894af675d34"
+dependencies = [
+ "adler",
+]
+
+[[package]]
+name = "more-asserts"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7843ec2de400bcbc6a6328c958dc38e5359da6e93e72e37bc5246bf1ae776389"
+
+[[package]]
+name = "multimap"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5ce46fe64a9d73be07dcbe690a38ce1b293be448fd8ce1e6c1b8062c9f72c6a"
+
 [[package]]
 name = "normalize-line-endings"
 version = "0.3.0"
@@ -515,7 +946,16 @@ dependencies = [
 ]
 
 [[package]]
-name = "once_cell"
+name = "object"
+version = "0.29.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21158b2c33aa6d4561f1c0a6ea283ca92bc54802a93b263e910746d679a7eb53"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "once_cell"
 version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1"
@@ -536,6 +976,22 @@ version = "6.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "029d8d0b2f198229de29dca79676f2738ff952edf3fde542eb8bf94d8c21b435"
 
+[[package]]
+name = "petgraph"
+version = "0.6.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6d5014253a1331579ce62aa67443b4a658c5e7dd03d4bc6d302b94474888143"
+dependencies = [
+ "fixedbitset",
+ "indexmap",
+]
+
+[[package]]
+name = "pin-project-lite"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
+
 [[package]]
 name = "predicates"
 version = "2.1.1"
@@ -566,6 +1022,16 @@ dependencies = [
  "termtree",
 ]
 
+[[package]]
+name = "prettyplease"
+version = "0.1.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c142c0e46b57171fe0c528bee8c5b7569e80f0c17e377cd0e30ea57dbc11bb51"
+dependencies = [
+ "proc-macro2",
+ "syn",
+]
+
 [[package]]
 name = "proc-macro-error"
 version = "1.0.4"
@@ -590,6 +1056,12 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "proc-macro-hack"
+version = "0.5.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dbf0c48bc1d91375ae5c3cd81e3722dff1abcf81a30960240640d223f59fe0e5"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.47"
@@ -599,6 +1071,92 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "prost"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0841812012b2d4a6145fae9a6af1534873c32aa67fff26bd09f8fa42c83f95a"
+dependencies = [
+ "bytes",
+ "prost-derive",
+]
+
+[[package]]
+name = "prost-build"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d8b442418ea0822409d9e7d047cbf1e7e9e1760b172bf9982cf29d517c93511"
+dependencies = [
+ "bytes",
+ "heck 0.4.0",
+ "itertools",
+ "lazy_static",
+ "log",
+ "multimap",
+ "petgraph",
+ "prettyplease",
+ "prost",
+ "prost-types",
+ "regex",
+ "syn",
+ "tempfile",
+ "which",
+]
+
+[[package]]
+name = "prost-derive"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "164ae68b6587001ca506d3bf7f1000bfa248d0e1217b618108fba4ec1d0cc306"
+dependencies = [
+ "anyhow",
+ "itertools",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "prost-types"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "747761bc3dc48f9a34553bf65605cf6cb6288ba219f3450b4275dbd81539551a"
+dependencies = [
+ "bytes",
+ "prost",
+]
+
+[[package]]
+name = "ptr_meta"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0738ccf7ea06b608c10564b31debd4f5bc5e197fc8bfe088f68ae5ce81e7a4f1"
+dependencies = [
+ "ptr_meta_derive",
+]
+
+[[package]]
+name = "ptr_meta_derive"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "16b845dbfca988fa33db069c0e230574d15a3088f147a87b64c7589eb662c9ac"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "pulldown-cmark"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffade02495f22453cd593159ea2f59827aae7f53fa8323f756799b670881dcf8"
+dependencies = [
+ "bitflags",
+ "memchr",
+ "unicase",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.18"
@@ -641,6 +1199,18 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "regalloc2"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d43a209257d978ef079f3d446331d0f1794f5e0fc19b306a199983857833a779"
+dependencies = [
+ "fxhash",
+ "log",
+ "slice-group-by",
+ "smallvec",
+]
+
 [[package]]
 name = "regex"
 version = "1.5.6"
@@ -664,6 +1234,18 @@ version = "0.6.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "49b3de9ec5dc0a3417da371aab17d729997c15010e7fd24ff707773a33bddb64"
 
+[[package]]
+name = "region"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "76e189c2369884dce920945e2ddf79b3dff49e071a167dd1817fa9c4c00d512e"
+dependencies = [
+ "bitflags",
+ "libc",
+ "mach",
+ "winapi",
+]
+
 [[package]]
 name = "remove_dir_all"
 version = "0.5.3"
@@ -673,6 +1255,56 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "rend"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79af64b4b6362ffba04eef3a4e10829718a4896dac19daa741851c86781edf95"
+dependencies = [
+ "bytecheck",
+]
+
+[[package]]
+name = "rkyv"
+version = "0.7.39"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cec2b3485b07d96ddfd3134767b8a447b45ea4eb91448d0a35180ec0ffd5ed15"
+dependencies = [
+ "bytecheck",
+ "hashbrown 0.12.3",
+ "indexmap",
+ "ptr_meta",
+ "rend",
+ "rkyv_derive",
+ "seahash",
+]
+
+[[package]]
+name = "rkyv_derive"
+version = "0.7.39"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6eaedadc88b53e36dd32d940ed21ae4d850d5916f2581526921f553a72ac34c4"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "rustc-demangle"
+version = "0.1.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ef03e0a2b150c7a90d01faf6254c9c48a41e95fb2a8c2ac1c6f0d2b9aefc342"
+
+[[package]]
+name = "rustc_version"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
+dependencies = [
+ "semver",
+]
+
 [[package]]
 name = "rustig"
 version = "0.1.0"
@@ -680,15 +1312,20 @@ dependencies = [
  "anyhow",
  "assert_cmd",
  "assert_fs",
+ "bytes",
  "clap",
  "clap-verbosity-flag",
  "env_logger",
  "log",
  "predicates",
+ "prost",
+ "prost-build",
  "sha-1",
  "strum",
  "strum_macros",
  "trycmd",
+ "wasmer",
+ "wasmer-wasi",
 ]
 
 [[package]]
@@ -697,6 +1334,12 @@ version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f2cc38e8fa666e2de3c4aba7edeb5ffc5246c1c2ed0e3d17e560aeeba736b23f"
 
+[[package]]
+name = "ryu"
+version = "1.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09"
+
 [[package]]
 name = "same-file"
 version = "1.0.6"
@@ -712,6 +1355,27 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
 
+[[package]]
+name = "seahash"
+version = "4.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c107b6f4780854c8b126e228ea8869f4d7b71260f962fefb57b996b8959ba6b"
+
+[[package]]
+name = "semver"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
+dependencies = [
+ "semver-parser",
+]
+
+[[package]]
+name = "semver-parser"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
+
 [[package]]
 name = "serde"
 version = "1.0.137"
@@ -721,6 +1385,17 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "serde-wasm-bindgen"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e3b4c031cd0d9014307d82b8abf653c0290fbdaeb4c02d00c63cf52f728628bf"
+dependencies = [
+ "js-sys",
+ "serde",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "serde_derive"
 version = "1.0.137"
@@ -732,17 +1407,43 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "serde_json"
+version = "1.0.87"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6ce777b7b150d76b9cf60d28b55f5847135a003f7d7350c6be7a773508ce7d45"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "sha-1"
 version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "028f48d513f9678cda28f6e4064755b3fbb2af6acd672f2c209b62323f7aea0f"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "cpufeatures",
  "digest",
 ]
 
+[[package]]
+name = "sha1"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1da05c97445caa12d05e848c4a4fcbbea29e748ac28f7e80e9b010392063770"
+dependencies = [
+ "sha1_smol",
+]
+
+[[package]]
+name = "sha1_smol"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ae1a47186c03a32177042e55dbc5fd5aee900b8e0069a8d70fba96a9375cd012"
+
 [[package]]
 name = "shlex"
 version = "1.1.0"
@@ -755,6 +1456,18 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2e24979f63a11545f5f2c60141afe249d4f19f84581ea2138065e400941d83d3"
 
+[[package]]
+name = "slice-group-by"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03b634d87b960ab1a38c4fe143b508576f075e7c978bfad18217645ebfdfa2ec"
+
+[[package]]
+name = "smallvec"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0"
+
 [[package]]
 name = "snapbox"
 version = "0.4.0"
@@ -781,6 +1494,70 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "485e65c1203eb37244465e857d15a26d3a85a5410648ccb53b18bd44cb3a7336"
 
+[[package]]
+name = "stable_deref_trait"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
+
+[[package]]
+name = "standback"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e113fb6f3de07a243d434a56ec6f186dfd51cb08448239fe7bcae73f87ff28ff"
+dependencies = [
+ "version_check",
+]
+
+[[package]]
+name = "stdweb"
+version = "0.4.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d022496b16281348b52d0e30ae99e01a73d737b2f45d38fed4edf79f9325a1d5"
+dependencies = [
+ "discard",
+ "rustc_version",
+ "stdweb-derive",
+ "stdweb-internal-macros",
+ "stdweb-internal-runtime",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "stdweb-derive"
+version = "0.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c87a60a40fccc84bef0652345bbbbbe20a605bf5d0ce81719fc476f5c03b50ef"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "serde",
+ "serde_derive",
+ "syn",
+]
+
+[[package]]
+name = "stdweb-internal-macros"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58fa5ff6ad0d98d1ffa8cb115892b6e69d67799f6763e162a1c9db421dc22e11"
+dependencies = [
+ "base-x",
+ "proc-macro2",
+ "quote",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "sha1",
+ "syn",
+]
+
+[[package]]
+name = "stdweb-internal-runtime"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "213701ba3370744dcd1a12960caa4843b3d68b4d1c0a5d575e0d65b2ee9d16c0"
+
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -799,7 +1576,7 @@ version = "0.24.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6878079b17446e4d3eba6192bb0a2950d5b14f0ed8424b852310e5a94345d0ef"
 dependencies = [
- "heck",
+ "heck 0.4.0",
  "proc-macro2",
  "quote",
  "rustversion",
@@ -808,22 +1585,28 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.95"
+version = "1.0.103"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbaf6116ab8924f39d52792136fb74fd60a80194cf1b1c6ffa6453eef1c3f942"
+checksum = "a864042229133ada95abf3b54fdc62ef5ccabe9515b64717bcb9a1919e59445d"
 dependencies = [
  "proc-macro2",
  "quote",
  "unicode-ident",
 ]
 
+[[package]]
+name = "target-lexicon"
+version = "0.12.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9410d0f6853b1d94f0e519fb95df60f29d2c1eff2d921ffdf01a4c8a3b54f12d"
+
 [[package]]
 name = "tempfile"
 version = "3.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5cdb1ef4eaeeaddc8fbd371e5017057064af0911902ef36b39801f67cc6d79e4"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "fastrand",
  "libc",
  "redox_syscall",
@@ -846,6 +1629,26 @@ version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "507e9898683b6c43a9aa55b64259b721b52ba226e0f3779137e50ad114a4c90b"
 
+[[package]]
+name = "thiserror"
+version = "1.0.37"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "10deb33631e3c9018b9baf9dcbbc4f737320d2b576bac10f6aefa048fa407e3e"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.37"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "982d17546b47146b28f7c22e3d08465f6b8903d0ea13c1660d9d84a6e7adcdbb"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "thread_local"
 version = "1.1.4"
@@ -855,6 +1658,59 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "time"
+version = "0.2.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4752a97f8eebd6854ff91f1c1824cd6160626ac4bd44287f7f4ea2035a02a242"
+dependencies = [
+ "const_fn",
+ "libc",
+ "standback",
+ "stdweb",
+ "time-macros",
+ "version_check",
+ "winapi",
+]
+
+[[package]]
+name = "time-macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "957e9c6e26f12cb6d0dd7fc776bb67a706312e7299aed74c8dd5b17ebb27e2f1"
+dependencies = [
+ "proc-macro-hack",
+ "time-macros-impl",
+]
+
+[[package]]
+name = "time-macros-impl"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd3c141a1b43194f3f56a1411225df8646c55781d5f26db825b3d98507eb482f"
+dependencies = [
+ "proc-macro-hack",
+ "proc-macro2",
+ "quote",
+ "standback",
+ "syn",
+]
+
+[[package]]
+name = "tinyvec"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
+
 [[package]]
 name = "toml_edit"
 version = "0.14.4"
@@ -867,6 +1723,39 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "tracing"
+version = "0.1.36"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2fce9567bd60a67d08a16488756721ba392f24f29006402881e43b19aac64307"
+dependencies = [
+ "cfg-if 1.0.0",
+ "log",
+ "pin-project-lite",
+ "tracing-attributes",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-attributes"
+version = "0.1.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11c75893af559bc8e10716548bdef5cb2b983f8e637db9d0e15126b61b484ee2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "24eb03ba0eab1fd845050058ce5e616558e8f8d8fca633e6b163fe25c797213a"
+dependencies = [
+ "once_cell",
+]
+
 [[package]]
 name = "trycmd"
 version = "0.14.0"
@@ -889,12 +1778,48 @@ version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
 
+[[package]]
+name = "unicase"
+version = "2.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50f37be617794602aabbeee0be4f259dc1778fabe05e2d67ee8f79326d5cb4f6"
+dependencies = [
+ "version_check",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d22af068fba1eb5edcb4aea19d382b2a3deb4c8f9d475c589b6ada9e0fd493ee"
 
+[[package]]
+name = "unicode-normalization"
+version = "0.1.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c5713f0fc4b5db668a2ac63cdb7bb4469d8c9fed047b1d0292cc7b0ce2ba921"
+dependencies = [
+ "tinyvec",
+]
+
+[[package]]
+name = "unicode-segmentation"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0fdbf052a0783de01e944a6ce7a8cb939e295b1e7be835a1112c3b9a7f047a5a"
+
+[[package]]
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+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
+
+[[package]]
+name = "unicode-xid"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f962df74c8c05a667b5ee8bcf162993134c104e96440b663c8daa176dc772d8c"
+
 [[package]]
 name = "version_check"
 version = "0.9.4"
@@ -921,6 +1846,384 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "wasi"
+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 1.0.0",
+ "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]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9424cdab516a16d4ea03c8f4a01b14e7b2d04a129dcc2bcdde5bcc5f68f06c41"
+dependencies = [
+ "leb128",
+]
+
+[[package]]
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+version = "3.0.0-rc.2"
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+checksum = "acfd471eb798272c684bf6c958ec70c9e6e2cceefc05c9cfe293d995c7fc9cc0"
+dependencies = [
+ "bytes",
+ "cfg-if 1.0.0",
+ "indexmap",
+ "js-sys",
+ "more-asserts",
+ "serde",
+ "serde-wasm-bindgen",
+ "target-lexicon",
+ "thiserror",
+ "wasm-bindgen",
+ "wasmer-compiler",
+ "wasmer-compiler-cranelift",
+ "wasmer-derive",
+ "wasmer-types",
+ "wasmer-vm",
+ "wat",
+ "winapi",
+]
+
+[[package]]
+name = "wasmer-compiler"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a075ace8064d26557356cb499ad6e6559346baa825e138122565611c983753ed"
+dependencies = [
+ "backtrace",
+ "cfg-if 1.0.0",
+ "enum-iterator",
+ "enumset",
+ "lazy_static",
+ "leb128",
+ "memmap2",
+ "more-asserts",
+ "region",
+ "rustc-demangle",
+ "smallvec",
+ "thiserror",
+ "wasmer-types",
+ "wasmer-vm",
+ "wasmparser",
+ "winapi",
+]
+
+[[package]]
+name = "wasmer-compiler-cranelift"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c45fe71c800c50755d675465b50e017038213b8f75bb14d04b8298b2c16a62e2"
+dependencies = [
+ "cranelift-codegen",
+ "cranelift-entity",
+ "cranelift-frontend",
+ "gimli",
+ "more-asserts",
+ "rayon",
+ "smallvec",
+ "target-lexicon",
+ "tracing",
+ "wasmer-compiler",
+ "wasmer-types",
+]
+
+[[package]]
+name = "wasmer-derive"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4bee8b64f88235d9b5ed24b76245cbbcc3a252a696a0f65baeb732060a3d005"
+dependencies = [
+ "proc-macro-error",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "wasmer-types"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b5806cf609ca299b265f93b5a8c4c2156933fd7d592c5861a847f11336cf8dc4"
+dependencies = [
+ "enum-iterator",
+ "enumset",
+ "indexmap",
+ "more-asserts",
+ "rkyv",
+ "target-lexicon",
+ "thiserror",
+]
+
+[[package]]
+name = "wasmer-vbus"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a67b2b6fb0b7fe5470d6266d67fcc1218f409087c83c6b26c2acae729f1e63a"
+dependencies = [
+ "thiserror",
+ "wasmer-vfs",
+]
+
+[[package]]
+name = "wasmer-vfs"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "034ee8bfde757ab08b1285059b5943a9a7f12a296f5a63e9ed08cc0be04e4f16"
+dependencies = [
+ "libc",
+ "thiserror",
+ "tracing",
+]
+
+[[package]]
+name = "wasmer-vm"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0898e214975ccdbbd0cddc2aa89839b34b6d0f373bc442c7c675cbb024019468"
+dependencies = [
+ "backtrace",
+ "cc",
+ "cfg-if 1.0.0",
+ "corosensei",
+ "enum-iterator",
+ "indexmap",
+ "lazy_static",
+ "libc",
+ "mach",
+ "memoffset",
+ "more-asserts",
+ "region",
+ "scopeguard",
+ "thiserror",
+ "wasmer-types",
+ "winapi",
+]
+
+[[package]]
+name = "wasmer-vnet"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1dc8057e2c41f17473228612fe2318e883d3e88fa017ea9e16094a95955238f8"
+dependencies = [
+ "bytes",
+ "thiserror",
+ "wasmer-vfs",
+]
+
+[[package]]
+name = "wasmer-wasi"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0582c1f7fe2ab863f7c11c93de3f5034306da705e32de1349982d2a6cb4c5052"
+dependencies = [
+ "bytes",
+ "cfg-if 1.0.0",
+ "derivative",
+ "generational-arena",
+ "getrandom",
+ "libc",
+ "thiserror",
+ "tracing",
+ "wasm-bindgen",
+ "wasmer",
+ "wasmer-vbus",
+ "wasmer-vfs",
+ "wasmer-vnet",
+ "wasmer-wasi-local-networking",
+ "wasmer-wasi-types",
+ "winapi",
+]
+
+[[package]]
+name = "wasmer-wasi-local-networking"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "210ecc7c5606f630ecf8559e6df8f77dacfe621993c631361ef280423d7e7c50"
+dependencies = [
+ "bytes",
+ "tracing",
+ "wasmer-vfs",
+ "wasmer-vnet",
+]
+
+[[package]]
+name = "wasmer-wasi-types"
+version = "3.0.0-rc.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c91f20991cffe6dcf691ac9aa8078cf56f2bfdb5f5ec1559f875f34c5706217d"
+dependencies = [
+ "byteorder",
+ "time",
+ "wasmer",
+ "wasmer-derive",
+ "wasmer-types",
+ "wasmer-wit-bindgen-gen-core",
+ "wasmer-wit-bindgen-gen-rust-wasm",
+ "wasmer-wit-bindgen-rust",
+ "wasmer-wit-parser",
+]
+
+[[package]]
+name = "wasmer-wit-bindgen-gen-core"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff8aa5be5ae5d61f5e151dc2c0e603093fe28395d2083b65ef7a3547844054fe"
+dependencies = [
+ "anyhow",
+ "wasmer-wit-parser",
+]
+
+[[package]]
+name = "wasmer-wit-bindgen-gen-rust"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "438bce7c4589842bf100cc9b312443a9b5fc6440e58ab0b8c114e460219c3c3b"
+dependencies = [
+ "heck 0.3.3",
+ "wasmer-wit-bindgen-gen-core",
+]
+
+[[package]]
+name = "wasmer-wit-bindgen-gen-rust-wasm"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "505f5168cfee591840e13e158a5c5e2f95d6df1df710839021564f36bee7bafc"
+dependencies = [
+ "heck 0.3.3",
+ "wasmer-wit-bindgen-gen-core",
+ "wasmer-wit-bindgen-gen-rust",
+]
+
+[[package]]
+name = "wasmer-wit-bindgen-rust"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "968747f1271f74aab9b70d9c5d4921db9bd13b4ec3ba5506506e6e7dc58c918c"
+dependencies = [
+ "async-trait",
+ "bitflags",
+ "wasmer-wit-bindgen-rust-impl",
+]
+
+[[package]]
+name = "wasmer-wit-bindgen-rust-impl"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd26fe00d08bd2119870b017d13413dfbd51e7750b6634d649fc7a7bbc057b85"
+dependencies = [
+ "proc-macro2",
+ "syn",
+ "wasmer-wit-bindgen-gen-core",
+ "wasmer-wit-bindgen-gen-rust-wasm",
+]
+
+[[package]]
+name = "wasmer-wit-parser"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f46c9a15086be8a2eb3790613902b9d3a9a687833b17cd021de263a20378585a"
+dependencies = [
+ "anyhow",
+ "id-arena",
+ "pulldown-cmark",
+ "unicode-normalization",
+ "unicode-xid",
+]
+
+[[package]]
+name = "wasmparser"
+version = "0.83.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "718ed7c55c2add6548cca3ddd6383d738cd73b892df400e96b9aa876f0141d7a"
+
+[[package]]
+name = "wast"
+version = "49.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05ef81fcd60d244cafffeafac3d17615fdb2fddda6aca18f34a8ae233353587c"
+dependencies = [
+ "leb128",
+ "memchr",
+ "unicode-width",
+ "wasm-encoder",
+]
+
+[[package]]
+name = "wat"
+version = "1.0.51"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c347c4460ffb311e95aafccd8c29e4888f241b9e4b3bb0e0ccbd998de2c8c0d"
+dependencies = [
+ "wast",
+]
+
+[[package]]
+name = "which"
+version = "4.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c831fbbee9e129a8cf93e7747a82da9d95ba8e16621cae60ec2cdc849bacb7b"
+dependencies = [
+ "either",
+ "libc",
+ "once_cell",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -952,6 +2255,49 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-sys"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43dbb096663629518eb1dfa72d80243ca5a6aca764cae62a2df70af760a9be75"
+dependencies = [
+ "windows_aarch64_msvc",
+ "windows_i686_gnu",
+ "windows_i686_msvc",
+ "windows_x86_64_gnu",
+ "windows_x86_64_msvc",
+]
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd761fd3eb9ab8cc1ed81e56e567f02dd82c4c837e48ac3b2181b9ffc5060807"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cab0cf703a96bab2dc0c02c0fa748491294bf9b7feb27e1f4f96340f208ada0e"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8cfdbe89cc9ad7ce618ba34abc34bbb6c36d99e96cae2245b7943cd75ee773d0"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4dd9b0c0e9ece7bb22e84d70d01b71c6d6248b81a3c60d11869451b4cb24784"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff1e4aa646495048ec7f3ffddc411e1d829c026a2ec62b39da15c1055e406eaa"
+
 [[package]]
 name = "yansi"
 version = "0.5.1"
diff --git a/Cargo.toml b/Cargo.toml
index d960ce2..0d529d1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,9 +12,23 @@ env_logger = "0.9.0"
 strum = "0.24.0"
 strum_macros = "0.24.0"
 anyhow = "1.0.57"
+wasmer = "3.0.0-rc.2"
+wasmer-wasi = "3.0.0-rc.2"
+prost = "0.11.2"
+bytes = "1.2.1"
 
 [dev-dependencies]
 assert_cmd = "2.0.4"
 assert_fs = "1.0.7"
 predicates = "2.1.1"
 trycmd = "0.14.0"
+
+[build-dependencies]
+prost-build = "0.11.2"
+
+[workspace]
+
+members = [
+    "hook",
+    ".",
+]
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..f1ce5e5
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,5 @@
+extern crate prost_build;
+
+fn main() {
+    prost_build::compile_protos(&["proto/hook.proto"], &["proto"]).unwrap();
+}
diff --git a/hook/.cargo/config.toml b/hook/.cargo/config.toml
new file mode 100644
index 0000000..6b77899
--- /dev/null
+++ b/hook/.cargo/config.toml
@@ -0,0 +1,2 @@
+[build]
+target = "wasm32-wasi"
diff --git a/hook/Cargo.lock b/hook/Cargo.lock
new file mode 100644
index 0000000..38d0bbe
--- /dev/null
+++ b/hook/Cargo.lock
@@ -0,0 +1,7 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "hook"
+version = "0.1.0"
diff --git a/hook/Cargo.toml b/hook/Cargo.toml
new file mode 100644
index 0000000..6f9bbc1
--- /dev/null
+++ b/hook/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "hook"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+prost = "0.11.2"
+bytes = "1.2.1"
+
+[build-dependencies]
+prost-build = "0.11.2"
diff --git a/hook/build.rs b/hook/build.rs
new file mode 100644
index 0000000..523fd7b
--- /dev/null
+++ b/hook/build.rs
@@ -0,0 +1,5 @@
+extern crate prost_build;
+
+fn main() {
+    prost_build::compile_protos(&["../proto/hook.proto"], &["../proto"]).unwrap();
+}
diff --git a/hook/src/main.rs b/hook/src/main.rs
new file mode 100644
index 0000000..3378869
--- /dev/null
+++ b/hook/src/main.rs
@@ -0,0 +1,27 @@
+use prost::Message;
+use std::io;
+use std::io::prelude::*;
+use std::io::Cursor;
+
+pub mod hook {
+    include!(concat!(env!("OUT_DIR"), "/hook.rs"));
+}
+
+fn main() {
+    let mut stdin = io::stdin().lock();
+    let input = stdin.fill_buf().unwrap();
+
+    let req = hook::Req::decode(&mut Cursor::new(input)).unwrap();
+    for (key, value) in std::env::vars() {
+        eprintln!("{key}: {value}");
+    }
+
+    let mut resp = hook::Resp::default();
+    resp.bar = req.foo;
+
+    let mut output = Vec::new();
+    output.reserve(resp.encoded_len());
+    resp.encode(&mut output).unwrap();
+
+    io::stdout().write_all(&output).unwrap();
+}
diff --git a/proto/hook.proto b/proto/hook.proto
new file mode 100644
index 0000000..2791a77
--- /dev/null
+++ b/proto/hook.proto
@@ -0,0 +1,11 @@
+syntax = "proto3";
+
+package hook;
+
+message Req {
+  string foo = 1;
+}
+
+message Resp {
+  string bar = 1;
+}
diff --git a/src/cli.rs b/src/cli.rs
index 35098b2..823a73d 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -1,8 +1,16 @@
 use crate::data::{self, ObjectType, OID};
-use anyhow::Context;
+use anyhow::{Context, Ok};
 use clap::{Parser, Subcommand};
 use clap_verbosity_flag::Verbosity;
+use prost::Message;
+use std::io::{Cursor, Read, Write};
 use std::{env, fs, path::PathBuf};
+use wasmer::{Instance, Module, Store};
+use wasmer_wasi::{WasiBidirectionalSharedPipePair, WasiState};
+
+pub mod hook {
+    include!(concat!(env!("OUT_DIR"), "/hook.rs"));
+}
 
 #[derive(Parser, Debug)]
 #[command(about = "A bad git clone, in Rust", long_about = None)]
@@ -81,6 +89,7 @@ fn hash_object(context: &data::Context, path: PathBuf) -> anyhow::Result<()> {
     context.ensure_init()?;
     let data = fs::read(&path).context(format!("could not read '{}'", path.display()))?;
     println!("{}", context.hash_object(data, ObjectType::Blob)?);
+    hook()?;
     Ok(())
 }
 
@@ -88,18 +97,61 @@ fn cat_file(context: &data::Context, object: String) -> anyhow::Result<()> {
     context.ensure_init()?;
     let data = context.get_object(OID(object), &[ObjectType::Blob])?;
     println!("{}", String::from_utf8_lossy(&data));
+    hook()?;
     Ok(())
 }
 
 fn write_tree(context: &data::Context) -> anyhow::Result<()> {
     context.ensure_init()?;
     println!("{}", context.write_tree(&context.work_dir)?);
+    hook()?;
     Ok(())
 }
 
 fn read_tree(context: &data::Context, object: String) -> anyhow::Result<()> {
     context.ensure_init()?;
-    context.read_tree(OID(object), &context.work_dir)
+    context.read_tree(OID(object), &context.work_dir)?;
+    hook()?;
+    Ok(())
+}
+
+fn hook() -> anyhow::Result<()> {
+    let mut store = Store::default();
+    let module = Module::from_file(&store, "target/wasm32-wasi/debug/hook.wasm")?;
+    let mut input = WasiBidirectionalSharedPipePair::new().with_blocking(false);
+    let mut output = WasiBidirectionalSharedPipePair::new().with_blocking(false);
+    let wasi_env = WasiState::new("hello")
+        .stdin(Box::new(input.clone()))
+        .stdout(Box::new(output.clone()))
+        .finalize(&mut store)?;
+
+    let import_object = wasi_env.import_object(&mut store, &module)?;
+    let instance = Instance::new(&mut store, &module, &import_object)?;
+
+    let memory = instance.exports.get_memory("memory")?;
+    wasi_env.data_mut(&mut store).set_memory(memory.clone());
+
+    let mut req = hook::Req::default();
+    req.foo = String::from("Hello world");
+
+    let mut req_b = Vec::new();
+    req_b.reserve(req.encoded_len());
+    req.encode(&mut req_b).unwrap();
+    input.write_all(&req_b)?;
+
+    instance
+        .exports
+        .get_function("_start")?
+        .call(&mut store, &[])?;
+
+    let mut resp_b = Vec::new();
+    output.read_to_end(&mut resp_b)?;
+
+    let resp = hook::Resp::decode(&mut Cursor::new(resp_b)).unwrap();
+
+    println!("Read \"{:?}\" from the WASI stdout!", resp);
+
+    Ok(())
 }
 
 #[test]