52 lines
1.7 KiB
Rust
52 lines
1.7 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015-2018 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::PathBuf;
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use error::RefErrorKind as REK;
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use error::RefError as RE;
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use error::Result;
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use libimagstore::store::Entry;
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use toml_query::read::TomlValueReadTypeExt;
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/// Creates a Hash from a PathBuf by making the PathBuf absolute and then running a hash
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/// algorithm on it
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pub fn hash_path(pb: &PathBuf) -> Result<String> {
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use crypto::sha1::Sha1;
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use crypto::digest::Digest;
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pb.to_str()
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.ok_or(RE::from_kind(REK::PathUTF8Error))
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.map(|s| {
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let mut hasher = Sha1::new();
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hasher.input_str(s);
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hasher.result_str()
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})
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}
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/// Read the reference from a file
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pub fn read_reference(refentry: &Entry) -> Result<PathBuf> {
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refentry.get_header()
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.read_string("ref.path")?
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.ok_or(RE::from_kind(REK::HeaderFieldMissingError))
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.map(PathBuf::from)
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}
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