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use anyhow::Error;
use anyhow::Result;
use clap::ArgMatches;
use log::trace;
use crate::config::Configuration;
use crate::package::PackageVersionConstraint;
use crate::repository::Repository;
pub async fn find_pkg(matches: &ArgMatches, config: &Configuration, repo: Repository) -> Result<()> {
use std::io::Write;
let package_name_regex = matches
.value_of("package_name_regex")
.map(regex::RegexBuilder::new)
.map(|mut builder| {
builder.size_limit(1 * 1024 * 1024); // max size for the regex is 1MB. Should be enough for everyone
builder.build()
.map_err(Error::from)
})
.unwrap()?; // safe by clap
let package_version_constraint = matches
.value_of("package_version_constraint")
.map(String::from)
.map(PackageVersionConstraint::new)
.transpose()?;
let iter = repo.packages()
.filter(|p| package_name_regex.captures(p.name()).is_some())
.filter(|p| package_version_constraint.as_ref().map(|v| v.matches(p.version())).unwrap_or(true))
.inspect(|pkg| trace!("Found package: {:?}", pkg));
let out = std::io::stdout();
let mut outlock = out.lock();
if matches.is_present("terse") {
for p in iter {
writeln!(outlock, "{} {}", p.name(), p.version())?;
}
Ok(())
} else {
let format = config.package_print_format();
crate::ui::print_packages(&mut outlock,
format,
iter,
true,
true)
}
}
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