60 lines
1.6 KiB
Rust
60 lines
1.6 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015-2019 Matthias Beyer <mail@beyermatthias.de> and contributors
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; version
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// 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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use std::path::Path;
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use failure::Fallible as Result;
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pub trait Hasher {
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const NAME: &'static str;
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/// hash the file at path `path`
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fn hash<P: AsRef<Path>>(path: P) -> Result<String>;
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}
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pub mod default {
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pub use super::sha1::Sha1Hasher as DefaultHasher;
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}
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pub mod sha1 {
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use std::path::Path;
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use failure::Fallible as Result;
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use sha1::{Sha1, Digest};
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use hasher::Hasher;
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pub struct Sha1Hasher;
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impl Sha1Hasher {
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pub fn sha1_hash(s: &str) -> String {
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format!("{:x}", Sha1::digest(s.as_bytes())) // TODO: Ugh...
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}
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}
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impl Hasher for Sha1Hasher {
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const NAME : &'static str = "sha1";
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fn hash<P: AsRef<Path>>(path: P) -> Result<String> {
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Ok(Sha1Hasher::sha1_hash(&::std::fs::read_to_string(path)?))
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}
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}
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}
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