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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,
)]
#[macro_use] extern crate log;
#[macro_use] extern crate anyhow;
extern crate clap;
extern crate regex;
extern crate resiter;
extern crate libimagstore;
extern crate libimagrt;
extern crate libimagerror;
use std::io::Write;
use regex::Regex;
use clap::App;
use anyhow::Result;
use resiter::AndThen;
use resiter::IterInnerOkOrElse;
use libimagrt::runtime::Runtime;
use libimagrt::application::ImagApplication;
use libimagstore::store::Entry;
use libimagstore::iter::get::StoreIdGetIteratorExtension;
mod ui;
struct Options {
files_with_matches: bool,
count: bool,
}
/// Marker enum for implementing ImagApplication on
///
/// This is used by binaries crates to execute business logic
/// or to build a CLI completion.
pub enum ImagGrep {}
impl ImagApplication for ImagGrep {
fn run(rt: Runtime) -> Result<()> {
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
.map_err(|e| anyhow!("Regex building error: {:?}", e))?;
let entries : Box<dyn Iterator<Item = _ >> = if rt.ids_from_stdin() {
let iter = rt.ids::<crate::ui::PathProvider>()?
.ok_or_else(|| anyhow!("No ids supplied"))?
.into_iter()
.map(Ok)
.into_get_iter(rt.store())
.map_inner_ok_or_else(|| anyhow!("Did not find one entry"))
.inspect(|e| debug!("Editing = {:?}", e));
Box::new(iter)
} else {
let iter = rt.store()
.entries()?
.into_get_iter()
.map_inner_ok_or_else(|| anyhow!("Entry from entries missing"));
Box::new(iter)
};
let overall_count = entries
.and_then_ok(|entry| {
if pattern.is_match(entry.get_content()) {
debug!("Matched: {}", entry.get_location());
rt.report_touched(entry.get_location())?;
show(&rt, &entry, &pattern, &opts, &mut count)
} else {
debug!("Not matched: {}", entry.get_location());
Ok(())
}
})
.collect::<Result<Vec<_>>>()?
.len();
if opts.count {
if !rt.output_is_pipe() || rt.output_data_pipe() {
writeln!(rt.stdout(), "{}", count)?;
}
} else if !opts.files_with_matches {
if !rt.output_is_pipe() || rt.output_data_pipe() {
writeln!(rt.stdout(), "Processed {} files, {} matches, {} nonmatches",
overall_count,
count,
overall_count - count)?;
}
}
Ok(())
}
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 {
"grep through entries text"
}
fn version() -> &'static str {
env!("CARGO_PKG_VERSION")
}
}
fn show(rt: &Runtime, e: &Entry, re: &Regex, opts: &Options, count: &mut usize) -> Result<()> {
if rt.output_is_pipe() && !rt.output_data_pipe() {
// leave if output is a pipe and behaviour is not overridden
return Ok(())
}
if opts.files_with_matches {
writeln!(rt.stdout(), "{}", e.get_location())?;
} else if opts.count {
*count += 1;
} else {
writeln!(rt.stdout(), "{}:", e.get_location())?;
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())?;
}
}
}
writeln!(rt.stdout())?;
*count += 1;
}
rt.report_touched(e.get_location())
}
|
