compress embedded corpus

~25% reduction in binary size

Author: evanrichter

Cargo.lock

@@ -10,6 +10,7 @@ anyhow = "1.0.71"
 clap = "4.3.3"
 glob = "0.3.1"
 log = "0.4.19"
+lz4_flex = { version = "0.11.1", default-features = false }
 postcard = { version = "1.0.4", features = ["use-std"], default-features = false }
 serde = { version = "1.0.164", features = ["derive"] }
 simple_logger = "4.1.0"
@@ -23,5 +24,6 @@ rand = "0.8.5"
 anyhow = "1.0.71"
 glob = "0.3.1"
 log = "0.4.19"
+lz4_flex = { version = "0.11.1", default-features = false }
 postcard = { version = "1.0.4", features = ["use-std"], default-features = false }
 serde = { version = "1.0.164", features = ["derive"] }

Cargo.toml

@@ -11,6 +11,9 @@ fn main() {
     // serialize to bytes
     let bytes = postcard::to_stdvec(&default).unwrap();
 
+    // compress
+    let bytes = lz4_flex::compress(&bytes);
+
     // output path to target build folder
     let mut outfile = std::path::PathBuf::from(std::env::var("OUT_DIR").unwrap());
     outfile.push("default.pc");

build.rs

@@ -227,8 +227,11 @@ fn main() -> Result<()> {
         // serialized bytes embedded from build.rs
         let bytes = include_bytes!(concat!(env!("OUT_DIR"), "/default.pc"));
 
+        // decompress
+        let bytes = lz4_flex::decompress(bytes, 39364573).unwrap();
+
         // deserialize
-        postcard::from_bytes(bytes).unwrap()
+        postcard::from_bytes(&bytes).unwrap()
     };
 
     let corpus_stats = match args.get_one::<&str>("corpus") {