153 lines
4.3 KiB
Rust
153 lines
4.3 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015-2019 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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#![forbid(unsafe_code)]
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#![deny(
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non_camel_case_types,
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non_snake_case,
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path_statements,
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trivial_numeric_casts,
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unstable_features,
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unused_allocation,
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unused_import_braces,
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unused_imports,
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unused_must_use,
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unused_mut,
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unused_qualifications,
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while_true,
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)]
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#[macro_use] extern crate log;
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#[macro_use] extern crate failure;
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extern crate clap;
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extern crate libimagrt;
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extern crate libimagstore;
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extern crate libimagerror;
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extern crate libimagentrylink;
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mod ui;
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use std::path::PathBuf;
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use libimagrt::runtime::Runtime;
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use libimagrt::application::ImagApplication;
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use libimagstore::storeid::StoreId;
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use libimagstore::store::Store;
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use libimagstore::store::FileLockEntry;
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use libimagentrylink::linkable::Linkable;
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use libimagstore::iter::get::StoreIdGetIteratorExtension;
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use libimagerror::iter::IterInnerOkOrElse;
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use failure::Fallible as Result;
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use failure::err_msg;
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use clap::App;
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/// Marker enum for implementing ImagApplication on
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///
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/// This is used by binaries crates to execute business logic
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/// or to build a CLI completion.
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pub enum ImagMv {}
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impl ImagApplication for ImagMv {
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fn run(rt: Runtime) -> Result<()> {
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let sourcename = rt
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.cli()
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.value_of("source")
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.map(PathBuf::from)
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.map(StoreId::new)
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.unwrap()?; // unwrap safe by clap
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let destname = rt
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.cli()
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.value_of("dest")
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.map(PathBuf::from)
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.map(StoreId::new)
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.unwrap()?; // unwrap safe by clap
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// remove links to entry, and re-add them later
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let mut linked_entries = rt.store()
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.get(sourcename.clone())?
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.ok_or_else(|| format_err!("Entry does not exist: {}", sourcename))?
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.links()?
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.map(|link| link.get_store_id().clone())
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.map(Ok)
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.into_get_iter(rt.store())
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.map_inner_ok_or_else(|| err_msg("Linked entry does not exist"))
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.collect::<Result<Vec<_>>>()?;
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{ // remove links to linked entries from source
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let mut entry = rt
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.store()
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.get(sourcename.clone())?
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.ok_or_else(|| err_msg("Source Entry does not exist"))?;
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for link in linked_entries.iter_mut() {
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entry.remove_link(link)?;
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}
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}
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if let Err(e) = rt.store().move_by_id(sourcename.clone(), destname.clone()) {
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debug!("Re-adding links to source entry because moving failed");
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relink(rt.store(), sourcename.clone(), &mut linked_entries)?;
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return Err(e);
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}
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rt.report_touched(&destname)?;
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// re-add links to moved entry
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relink(rt.store(), destname, &mut linked_entries)?;
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info!("Ok.");
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Ok(())
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}
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fn build_cli<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
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ui::build_ui(app)
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}
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fn name() -> &'static str {
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env!("CARGO_PKG_NAME")
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}
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fn description() -> &'static str {
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"Move things around in the store"
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}
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fn version() -> &'static str {
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env!("CARGO_PKG_VERSION")
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}
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}
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fn relink<'a>(store: &'a Store, target: StoreId, linked_entries: &mut Vec<FileLockEntry<'a>>) -> Result<()> {
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let mut entry = store
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.get(target)?
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.ok_or_else(|| err_msg("Funny things happened: Entry moved to destination did not fail, but entry does not exist"))?;
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for mut link in linked_entries {
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let _ = entry.add_link(&mut link)?;
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}
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Ok(())
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}
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