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Diffstat (limited to 'lib/entry/libimagentryref/src/util.rs')
-rw-r--r-- | lib/entry/libimagentryref/src/util.rs | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/entry/libimagentryref/src/util.rs b/lib/entry/libimagentryref/src/util.rs new file mode 100644 index 00000000..c69e4d48 --- /dev/null +++ b/lib/entry/libimagentryref/src/util.rs @@ -0,0 +1,57 @@ +// +// imag - the personal information management suite for the commandline +// Copyright (C) 2015, 2016 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::PathBuf; + +use error::RefErrorKind as REK; +use error::RefError as RE; +use error::Result; +use error::ResultExt; + +use libimagstore::store::Entry; + +use toml::Value; +use toml_query::read::TomlValueReadExt; + +/// Creates a Hash from a PathBuf by making the PathBuf absolute and then running a hash +/// algorithm on it +pub fn hash_path(pb: &PathBuf) -> Result<String> { + use crypto::sha1::Sha1; + use crypto::digest::Digest; + + match pb.to_str() { + Some(s) => { + let mut hasher = Sha1::new(); + hasher.input_str(s); + Ok(hasher.result_str()) + }, + None => return Err(RE::from_kind(REK::PathUTF8Error)), + } +} + +/// Read the reference from a file +pub fn read_reference(refentry: &Entry) -> Result<PathBuf> { + match refentry.get_header().read("ref.path") { + Ok(Some(&Value::String(ref s))) => Ok(PathBuf::from(s)), + Ok(Some(_)) => Err(RE::from_kind(REK::HeaderTypeError)), + Ok(None) => Err(RE::from_kind(REK::HeaderFieldMissingError)), + Err(e) => Err(e).chain_err(|| REK::StoreReadError), + } +} + |