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⚡ Bolt: Optimize packager checksum calculation with file streaming #154

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Merged
Tcode-Motion merged 1 commit into from
Sep 15, 2026
Merged

⚡ Bolt: Optimize packager checksum calculation with file streaming #154

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25 changes: 16 additions & 9 deletions tools/packager/src/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -22,6 +22,19 @@ struct ReleaseDirectories {
examples_dir: PathBuf,
}

struct HashWriter<'a>(&'a mut Sha256);

impl<'a> std::io::Write for HashWriter<'a> {
fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
self.0.update(buf);
Ok(buf.len())
}

fn flush(&mut self) -> std::io::Result<()> {
Ok(())
}
}

fn main() -> anyhow::Result<()> {
println!("=== Starting TechScript 2.0 Packaging Pipeline ===");

Expand Down Expand Up @@ -726,9 +739,7 @@ fn calculate_checksums_json(release_dir: &Path) -> anyhow::Result<serde_json::Va
if fpath.exists() {
let mut file = File::open(&fpath)?;
let mut hasher = Sha256::new();
let mut buffer = Vec::new();
file.read_to_end(&mut buffer)?;
hasher.update(&buffer);
std::io::copy(&mut file, &mut HashWriter(&mut hasher))?;
let hash = hasher.finalize();
map.insert(
fname.to_string(),
Expand All @@ -749,9 +760,7 @@ fn calculate_checksums_json(release_dir: &Path) -> anyhow::Result<serde_json::Va
if fpath.exists() {
let mut file = File::open(&fpath)?;
let mut hasher = Sha256::new();
let mut buffer = Vec::new();
file.read_to_end(&mut buffer)?;
hasher.update(&buffer);
std::io::copy(&mut file, &mut HashWriter(&mut hasher))?;
let hash = hasher.finalize();
map.insert(
fname.to_string(),
Expand Down Expand Up @@ -788,9 +797,7 @@ fn generate_checksums_txt(release_dir: &Path) -> anyhow::Result<()> {
if file_path.exists() {
let mut file = File::open(file_path)?;
let mut hasher = Sha256::new();
let mut buffer = Vec::new();
file.read_to_end(&mut buffer)?;
hasher.update(&buffer);
std::io::copy(&mut file, &mut HashWriter(&mut hasher))?;
let hash = hasher.finalize();

// Format to show filename relative to the release root
Expand Down
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