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//
// imag - the personal information management suite for the commandline
// Copyright (C) 2015-2019 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,
)]
#[macro_use] extern crate log;
extern crate clap;
extern crate regex;
extern crate libimagstore;
#[macro_use] extern crate libimagrt;
extern crate libimagerror;
use std::io::Write;
use regex::Regex;
use libimagrt::runtime::Runtime;
use libimagrt::setup::generate_runtime_setup;
use libimagstore::store::Entry;
use libimagerror::trace::MapErrTrace;
use libimagerror::exit::ExitUnwrap;
use libimagerror::io::ToExitCode;
mod ui;
struct Options {
files_with_matches: bool,
count: bool,
}
fn main() {
let version = make_imag_version!();
let rt = generate_runtime_setup("imag-grep",
&version,
"grep through entries text",
ui::build_ui);
let opts = Options {
files_with_matches : rt.cli().is_present("files-with-matches"),
count : rt.cli().is_present("count"),
};
let mut count : usize = 0;
let pattern = rt
.cli()
.value_of("pattern")
.map(Regex::new)
.unwrap() // ensured by clap
.unwrap_or_else(|e| {
error!("Regex building error: {:?}", e);
::std::process::exit(1)
});
let overall_count = rt
.store()
.entries()
.map_err_trace_exit_unwrap()
.into_get_iter()
.filter_map(|res| res.map_err_trace_exit_unwrap())
.filter_map(|entry| if pattern.is_match(entry.get_content()) {
show(&rt, &entry, &pattern, &opts, &mut count);
Some(())
} else {
None
})
.count();
if opts.count {
writeln!(rt.stdout(), "{}", count).to_exit_code().unwrap_or_exit();
} else if !opts.files_with_matches {
writeln!(rt.stdout(), "Processed {} files, {} matches, {} nonmatches",
overall_count,
count,
overall_count - count)
.to_exit_code()
.unwrap_or_exit();
}
}
fn show(rt: &Runtime, e: &Entry, re: &Regex, opts: &Options, count: &mut usize) {
if opts.files_with_matches {
writeln!(rt.stdout(), "{}", e.get_location()).to_exit_code().unwrap_or_exit();
} else if opts.count {
*count += 1;
} else {
writeln!(rt.stdout(), "{}:", e.get_location()).to_exit_code().unwrap_or_exit();
for capture in re.captures_iter(e.get_content()) {
for mtch in capture.iter() {
if let Some(m) = mtch {
writeln!(rt.stdout(), " '{}'", m.as_str()).to_exit_code().unwrap_or_exit();
}
}
}
writeln!(rt.stdout()).to_exit_code().unwrap_or_exit();
*count += 1;
}
rt.report_touched(e.get_location()).unwrap_or_exit();
}
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