imag-markdown 0.10.1

Part of the imag core distribution: imag-markdown command
Documentation 
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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2020 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
//

#![forbid(unsafe_code)]

#![deny(
    non_camel_case_types,
    non_snake_case,
    path_statements,
    trivial_numeric_casts,
    unstable_features,
    unused_allocation,
    unused_import_braces,
    unused_imports,
    unused_must_use,
    unused_mut,
    unused_qualifications,
    while_true,
)]

extern crate clap;
#[macro_use] extern crate log;
extern crate failure;
extern crate resiter;

extern crate libimagerror;
extern crate libimagrt;
extern crate libimagstore;

use std::io::Write;

use failure::Error;
use failure::err_msg;
use failure::Fallible as Result;
use resiter::AndThen;
use resiter::Map;
use resiter::IterInnerOkOrElse;
use clap::App;

use libimagrt::runtime::Runtime;
use libimagrt::application::ImagApplication;
use libimagstore::iter::get::StoreIdGetIteratorExtension;

mod ui;

/// Marker enum for implementing ImagApplication on
///
/// This is used by binaries crates to execute business logic
/// or to build a CLI completion.
pub enum ImagMarkdown {}
impl ImagApplication for ImagMarkdown {
    fn run(rt: Runtime) -> Result<()> {
        let only_links = rt.cli().is_present("links");
        let out = rt.stdout();
        let mut outlock = out.lock();

        let iter = rt
            .ids::<crate::ui::PathProvider>()?
            .ok_or_else(|| err_msg("No ids supplied"))?
            .into_iter()
            .map(Ok)
            .into_get_iter(rt.store())
            .map_inner_ok_or_else(|| err_msg("Entry does not exist but is in store. This is a BUG, please report!"));

        if only_links {
            debug!("Printing only links");
            iter.map_ok(|fle| libimagentrymarkdown::link::extract_links(fle.get_content()))
                .and_then_ok(|links| {
                    links.iter()
                        .map(|link| {
                            writeln!(outlock, "{title}: {link}", title = link.title, link = link.link).map_err(Error::from)
                        })
                        .collect()
                })
                .collect()

        } else {
            iter.and_then_ok(|fle| libimagentrymarkdown::html::to_html(fle.get_content()))
                .and_then_ok(|html| {
                    writeln!(outlock, "{}", html).map_err(Error::from).map_err(Error::from)
                })
                .collect()
        }
    }

    fn build_cli<'a>(app: App<'a, 'a>) -> App<'a, 'a> {
        ui::build_ui(app)
    }

    fn name() -> &'static str {
        env!("CARGO_PKG_NAME")
    }

    fn description() -> &'static str {
        "Print one or more imag entries after processing them with a markdown parser"
    }

    fn version() -> &'static str {
        env!("CARGO_PKG_VERSION")
    }
}