minify css on build

filed/Cargo.lock

@@ -191,6 +191,12 @@ dependencies = [
  "tokio-util",
 ]
 
+[[package]]
+name = "convert_case"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
+
 [[package]]
 name = "core-foundation-sys"
 version = "0.8.4"
@@ -216,12 +222,36 @@ dependencies = [
  "typenum",
 ]
 
+[[package]]
+name = "css-minify"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "874c6e2d19f8d4a285083b11a3241bfbe01ac3ed85f26e1e6b34888d960552bd"
+dependencies = [
+ "derive_more",
+ "indexmap",
+ "nom",
+]
+
 [[package]]
 name = "data-encoding"
 version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2e66c9d817f1720209181c316d28635c050fa304f9c79e47a520882661b7308"
 
+[[package]]
+name = "derive_more"
+version = "0.99.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4fb810d30a7c1953f91334de7244731fc3f3c10d7fe163338a35b9f640960321"
+dependencies = [
+ "convert_case",
+ "proc-macro2",
+ "quote",
+ "rustc_version",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "digest"
 version = "0.10.7"
@@ -279,6 +309,7 @@ dependencies = [
  "askama",
  "bytes",
  "chrono",
+ "css-minify",
  "dotenvy",
  "femme",
  "futures-util",
@@ -927,6 +958,15 @@ version = "0.1.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
 
+[[package]]
+name = "rustc_version"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa0f585226d2e68097d4f95d113b15b83a82e819ab25717ec0590d9584ef366"
+dependencies = [
+ "semver",
+]
+
 [[package]]
 name = "rustls-pemfile"
 version = "1.0.3"
@@ -948,6 +988,12 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e1cf6437eb19a8f4a6cc0f7dca544973b0b78843adbfeb3683d1a94a0024a294"
 
+[[package]]
+name = "semver"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "836fa6a3e1e547f9a2c4040802ec865b5d85f4014efe00555d7090a3dcaa1090"
+
 [[package]]
 name = "serde"
 version = "1.0.188"

filed/Cargo.toml

@@ -27,3 +27,6 @@ warp = "0.3.6"
 [profile.release]
 opt-level = 'z'
 lto = true
+
+[build-dependencies]
+css-minify = "0.3.1"

filed/build.rs

@@ -0,0 +1,29 @@
+use std::{fs, path::PathBuf};
+use css_minify::optimizations::{Minifier, Level};
+
+fn main() {
+    let assets = fs::read_dir("static/assets").unwrap();
+    let assets = assets
+        .map(|x| x.unwrap().path())
+        .filter(|x| x.extension().is_some())
+        .filter(|x| {
+            let ext = x.extension().clone().unwrap().to_str().unwrap().to_string();
+            ext == "css"
+        })
+        .collect::<Vec<PathBuf>>();
+    
+    assets.iter().for_each(|asset| {
+        let bundled = Minifier::default().minify(
+            String::from_utf8(fs::read(asset).unwrap()).unwrap().as_str(),
+            Level::Zero
+        ).unwrap();
+        
+        fs::write({
+            let mut path = asset.components().take(1).collect::<PathBuf>();
+            path.push(asset.components().last().unwrap());
+            println!("{:?}", path);
+            path
+        }, bundled).unwrap();
+        panic!()
+    })
+}

filed/static/.gitignore

@@ -0,0 +1,4 @@
+*.js
+*.css
+!assets/*.js
+!assets/*.css