77 lines
2.2 KiB
Rust
77 lines
2.2 KiB
Rust
//
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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::ops::DerefMut;
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use libimagerror::into::IntoError;
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use libimagrt::runtime::Runtime;
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use libimagstore::store::Entry;
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use libimagstore::store::FileLockEntry;
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use result::Result;
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use error::EditErrorKind;
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use error::MapErrInto;
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pub trait Edit {
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fn edit_content(&mut self, rt: &Runtime) -> Result<()>;
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}
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impl Edit for String {
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fn edit_content(&mut self, rt: &Runtime) -> Result<()> {
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edit_in_tmpfile(rt, self).map(|_| ())
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}
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}
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impl Edit for Entry {
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fn edit_content(&mut self, rt: &Runtime) -> Result<()> {
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edit_in_tmpfile(rt, self.get_content_mut())
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.map(|_| ())
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}
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}
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impl<'a> Edit for FileLockEntry<'a> {
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fn edit_content(&mut self, rt: &Runtime) -> Result<()> {
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self.deref_mut().edit_content(rt)
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}
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}
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pub fn edit_in_tmpfile(rt: &Runtime, s: &mut String) -> Result<()> {
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use libimagutil::edit::edit_in_tmpfile_with_command;
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rt.editor()
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.ok_or(EditErrorKind::NoEditor.into_error())
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.and_then(|editor| {
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edit_in_tmpfile_with_command(editor, s)
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.map_err_into(EditErrorKind::IOError)
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.and_then(|worked| {
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if !worked {
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Err(EditErrorKind::ProcessExitFailure.into())
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} else {
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Ok(())
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}
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})
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})
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}
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