104 lines
3.7 KiB
Rust
104 lines
3.7 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 toml::Value;
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use libimagstore::store::Entry;
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use libimagstore::store::FileLockEntry;
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use libimagstore::store::Store;
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use libimagstore::storeid::IntoStoreId;
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use libimagstore::storeid::StoreIdIterator;
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use libimagentrylink::internal::InternalLinker;
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use libimagentryutil::isa::Is;
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use libimagentryutil::isa::IsKindHeaderPathProvider;
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use toml_query::read::TomlValueReadTypeExt;
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use toml_query::insert::TomlValueInsertExt;
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use failure::Fallible as Result;
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use failure::ResultExt;
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use failure::Error;
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use failure::err_msg;
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use iter::*;
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pub trait Annotateable {
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fn annotate<'a>(&mut self, store: &'a Store, ann_name: &str) -> Result<FileLockEntry<'a>>;
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fn denotate<'a>(&mut self, store: &'a Store, ann_name: &str) -> Result<Option<FileLockEntry<'a>>>;
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fn annotations<'a>(&self, store: &'a Store) -> Result<AnnotationIter<'a>>;
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fn is_annotation(&self) -> Result<bool>;
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}
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provide_kindflag_path!(IsAnnotation, "annotation.is_annotation");
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impl Annotateable for Entry {
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/// Annotate an entry, returns the new entry which is used to annotate
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fn annotate<'a>(&mut self, store: &'a Store, ann_name: &str) -> Result<FileLockEntry<'a>> {
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use module_path::ModuleEntryPath;
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store.retrieve(ModuleEntryPath::new(ann_name).into_storeid()?)
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.and_then(|mut anno| {
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{
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let _ = anno.set_isflag::<IsAnnotation>()?;
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let _ = anno
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.get_header_mut()
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.insert("annotation.name", Value::String(String::from(ann_name)))?;
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}
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Ok(anno)
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})
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.and_then(|mut anno| {
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anno.add_internal_link(self)
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.context(err_msg("Linking error"))
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.map_err(Error::from)
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.map(|_| anno)
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})
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}
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/// Checks the current entry for all annotations and removes the one where the name is
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/// `ann_name`, which is then returned
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fn denotate<'a>(&mut self, store: &'a Store, ann_name: &str) -> Result<Option<FileLockEntry<'a>>> {
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for annotation in self.annotations(store)? {
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let mut anno = annotation?;
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let name = match anno.get_header().read_string("annotation.name")? {
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Some(ref name) => name.clone(),
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None => continue,
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};
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if name == ann_name {
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let _ = self.remove_internal_link(&mut anno)?;
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return Ok(Some(anno));
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}
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}
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Ok(None)
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}
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/// Get all annotations of an entry
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fn annotations<'a>(&self, store: &'a Store) -> Result<AnnotationIter<'a>> {
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self.get_internal_links()
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.map(|iter| StoreIdIterator::new(Box::new(iter.map(|e| e.get_store_id().clone()).map(Ok))))
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.map(|i| AnnotationIter::new(i, store))
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}
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fn is_annotation(&self) -> Result<bool> {
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self.is::<IsAnnotation>()
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}
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}
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