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author | Lars Wirzenius <liw@sequoia-pgp.org> | 2022-04-10 12:16:10 +0300 |
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committer | Lars Wirzenius <liw@sequoia-pgp.org> | 2022-04-10 12:16:10 +0300 |
commit | 21c521a683690239a3c8b0df115a6af3ddf0f675 (patch) | |
tree | 4a896c2cf449c5cbab873a89c3bc7f9ad9c79d5c | |
parent | fee8c23a3d6f7139bb6bb586fc6dacbcfbe43c2a (diff) | |
download | checksums-21c521a683690239a3c8b0df115a6af3ddf0f675.tar.gz |
add missing files
Sponsored-by: author
-rw-r--r-- | Cargo.lock | 419 | ||||
-rw-r--r-- | src/lib.rs | 56 |
2 files changed, 475 insertions, 0 deletions
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FileChecksum { + pub fn new(filename: &Path, checksum: String) -> Self { + Self { + filename: filename.to_path_buf(), + checksum, + } + } + + pub fn print(&self) { + println!("{} {}", self.checksum, self.filename.display()); + } +} + +pub fn checksum(filename: &Path) -> Result<FileChecksum, std::io::Error> { + let mut checksum = Sha256::new(); + + let file = File::open(filename)?; + let mut reader = BufReader::new(file); + loop { + let mut buf = vec![0; BUF_SIZE]; + let n = reader.read(&mut buf)?; + if n == 0 { + break; + } + checksum.update(&buf[..n]); + } + + let checksum = checksum.finalize(); + let checksum = format!("{checksum:x}"); + Ok(FileChecksum::new(filename, checksum)) +} + +pub fn print_checksums(checksums: &[FileChecksum]) { + for c in checksums { + c.print(); + } +} |