Gzip artifacts

Co-authored-by: bjorn3 <[email protected]>

Override miniz_oxide to build it with optimizations

Building this crate with optimizations decreases the gzipping
part of `cargo xtask dist` from `30-40s` down to `3s`,
the overhead for `rustc` to apply optimizations is miserable on this background

2 files changed, 24 insertions, 8 deletions

diff --git a/xtask/Cargo.toml b/xtask/Cargo.toml
index a8b9b010d..8045a98ea 100644
--- a/xtask/Cargo.toml
+++ b/xtask/Cargo.toml
@@ -14,3 +14,4 @@ pico-args = "0.3.1"
 quote = "1.0.2"
 proc-macro2 = "1.0.8"
 anyhow = "1.0.26"
+flate2 = "1.0"
diff --git a/xtask/src/dist.rs b/xtask/src/dist.rs
index aef68089e..b8f68027c 100644
--- a/xtask/src/dist.rs
+++ b/xtask/src/dist.rs
@@ -1,4 +1,10 @@
-use std::path::PathBuf;
+use flate2::{write::GzEncoder, Compression};
+use std::{
+    env,
+    fs::File,
+    io,
+    path::{Path, PathBuf},
+};
 
 use anyhow::Result;
 
@@ -16,7 +22,7 @@ pub fn run_dist(nightly: bool, client_version: Option<String>) -> Result<()> {
         let release_tag = if nightly { "nightly".to_string() } else { date_iso()? };
         dist_client(&version, &release_tag)?;
     }
-    dist_server(nightly)?;
+    dist_server()?;
     Ok(())
 }
 
@@ -46,17 +52,14 @@ fn dist_client(version: &str, release_tag: &str) -> Result<()> {
     Ok(())
 }
 
-fn dist_server(nightly: bool) -> Result<()> {
+fn dist_server() -> Result<()> {
     if cfg!(target_os = "linux") {
-        std::env::set_var("CC", "clang");
+        env::set_var("CC", "clang");
         run!(
             "cargo build --manifest-path ./crates/rust-analyzer/Cargo.toml --bin rust-analyzer --release"
             // We'd want to add, but that requires setting the right linker somehow
             // --features=jemalloc
         )?;
-        if !nightly {
-            run!("strip ./target/release/rust-analyzer")?;
-        }
     } else {
         run!("cargo build --manifest-path ./crates/rust-analyzer/Cargo.toml --bin rust-analyzer --release")?;
     }
@@ -71,8 +74,20 @@ fn dist_server(nightly: bool) -> Result<()> {
         panic!("Unsupported OS")
     };
 
-    fs2::copy(src, dst)?;
+    let src = Path::new(src);
+    let dst = Path::new(dst);
+
+    fs2::copy(&src, &dst)?;
+    gzip(&src, &dst.with_extension("gz"))?;
+
+    Ok(())
+}
 
+fn gzip(src_path: &Path, dest_path: &Path) -> Result<()> {
+    let mut encoder = GzEncoder::new(File::create(dest_path)?, Compression::best());
+    let mut input = io::BufReader::new(File::open(src_path)?);
+    io::copy(&mut input, &mut encoder)?;
+    encoder.finish()?;
     Ok(())
 }