imag/bin/core/imag-view/src/main.rs

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//
// 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
//
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#![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,
)]
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extern crate clap;
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#[macro_use] extern crate log;
extern crate handlebars;
extern crate tempfile;
extern crate toml;
extern crate toml_query;
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extern crate libimagentryview;
extern crate libimagerror;
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extern crate libimagrt;
extern crate libimagstore;
use std::collections::BTreeMap;
use std::io::Write;
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use std::path::PathBuf;
use std::process::Command;
use std::process::exit;
use handlebars::Handlebars;
use toml_query::read::TomlValueReadExt;
use toml::Value;
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use libimagrt::setup::generate_runtime_setup;
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use libimagerror::trace::trace_error_exit;
use libimagerror::trace::MapErrTrace;
use libimagentryview::builtin::stdout::StdoutViewer;
use libimagentryview::viewer::Viewer;
use libimagentryview::error::ViewError as VE;
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mod ui;
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use ui::build_ui;
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fn main() {
let rt = generate_runtime_setup( "imag-view",
env!("CARGO_PKG_VERSION"),
"View entries (readonly)",
build_ui);
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let entry_id = rt.cli().value_of("id").unwrap(); // enforced by clap
let view_header = rt.cli().is_present("view-header");
let view_content = rt.cli().is_present("view-content");
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let entry = match rt.store().get(PathBuf::from(entry_id)) {
Ok(Some(fle)) => fle,
Ok(None) => {
error!("Cannot get {}, there is no such id in the store", entry_id);
exit(1);
}
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Err(e) => {
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trace_error_exit(&e, 1);
}
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};
if rt.cli().is_present("in") {
let viewer = rt
.cli()
.value_of("in")
.ok_or_else::<VE, _>(|| "No viewer given".to_owned().into())
.map_err_trace_exit_unwrap(1);
let config = rt
.config()
.ok_or_else::<VE, _>(|| "No configuration, cannot continue".to_owned().into())
.map_err_trace_exit_unwrap(1);
let query = format!("view.viewers.{}", viewer);
match config.read(&query) {
Err(e) => trace_error_exit(&e, 1),
Ok(None) => {
error!("Cannot find '{}' in config", query);
exit(1)
},
Ok(Some(&Value::String(ref viewer_template))) => {
let mut handlebars = Handlebars::new();
handlebars.register_escape_fn(::handlebars::no_escape);
let _ = handlebars.register_template_string("template", viewer_template)
.map_err_trace_exit_unwrap(1);
let file = {
let mut tmpfile = tempfile::NamedTempFile::new()
.map_err_trace_exit_unwrap(1);
if view_header {
let hdr = toml::ser::to_string_pretty(entry.get_header())
.map_err_trace_exit_unwrap(1);
let _ = tmpfile.write(format!("---\n{}---\n", hdr).as_bytes())
.map_err_trace_exit_unwrap(1);
}
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if view_content {
let _ = tmpfile.write(entry.get_content().as_bytes())
.map_err_trace_exit_unwrap(1);
}
tmpfile
};
let file_path = file
.path()
.to_str()
.map(String::from)
.ok_or::<VE>("Cannot build path".to_owned().into())
.map_err_trace_exit_unwrap(1);
let mut command = {
let mut data = BTreeMap::new();
data.insert("entry", file_path);
let call = handlebars.render("template", &data).map_err_trace_exit_unwrap(1);
let mut elems = call.split_whitespace();
let command_string = elems
.next()
.ok_or::<VE>("No command".to_owned().into())
.map_err_trace_exit_unwrap(1);
let mut cmd = Command::new(command_string);
for arg in elems {
cmd.arg(arg);
}
cmd
};
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if !command.status().map_err_trace_exit_unwrap(1).success() {
exit(1)
}
},
Ok(Some(_)) => {
error!("Type error: Expected String at {}, found non-string", query);
exit(1)
},
}
} else {
let _ = StdoutViewer::new(view_header, view_content)
.view_entry(&entry)
.map_err_trace_exit(1);
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}
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}