57 lines
1.9 KiB
Rust
57 lines
1.9 KiB
Rust
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//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015, 2016 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 result::Result;
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use libimagstore::store::Entry;
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use libimagerror::into::IntoError;
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use toml::Value;
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use toml_query::read::TomlValueReadExt;
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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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match pb.to_str() {
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Some(s) => {
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let mut hasher = Sha1::new();
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hasher.input_str(s);
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Ok(hasher.result_str())
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},
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None => return Err(REK::PathUTF8Error.into_error()),
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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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match refentry.get_header().read("ref.path") {
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Ok(Some(&Value::String(ref s))) => Ok(PathBuf::from(s)),
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Ok(Some(_)) => Err(REK::HeaderTypeError.into_error()),
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Ok(None) => Err(REK::HeaderFieldMissingError.into_error()),
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Err(e) => Err(REK::StoreReadError.into_error_with_cause(Box::new(e))),
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}
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}
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