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Diffstat (limited to 'lib/entry/libimagentryref/src/hasher.rs')
-rw-r--r-- | lib/entry/libimagentryref/src/hasher.rs | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/lib/entry/libimagentryref/src/hasher.rs b/lib/entry/libimagentryref/src/hasher.rs new file mode 100644 index 00000000..aec7eebc --- /dev/null +++ b/lib/entry/libimagentryref/src/hasher.rs @@ -0,0 +1,55 @@ +// +// imag - the personal information management suite for the commandline +// Copyright (C) 2015-2019 Matthias Beyer <mail@beyermatthias.de> and contributors +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Lesser General Public +// License as published by the Free Software Foundation; version +// 2.1 of the License. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +// + +use std::path::Path; + +use failure::Fallible as Result; + +pub trait Hasher { + const NAME: &'static str; + + /// hash the file at path `path` + fn hash<P: AsRef<Path>>(path: P) -> Result<String>; +} + +pub mod default { + pub use super::sha1::Sha1Hasher as DefaultHasher; +} + +pub mod sha1 { + use std::path::Path; + + use failure::Fallible as Result; + use sha1::{Sha1, Digest}; + + use hasher::Hasher; + + pub struct Sha1Hasher; + + impl Hasher for Sha1Hasher { + const NAME : &'static str = "sha1"; + + fn hash<P: AsRef<Path>>(path: P) -> Result<String> { + let digest = Sha1::digest(::std::fs::read_to_string(path)?.as_bytes()); + Ok(format!("{:x}", digest)) // TODO: Ugh... + } + } + +} + |