add package search

Cargo.lock

@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "aho-corasick"
+version = "0.7.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "alpm"
 version = "2.2.1"
@@ -295,6 +304,12 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "memchr"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+
 [[package]]
 name = "memoffset"
 version = "0.7.1"
@@ -350,6 +365,7 @@ dependencies = [
  "clap",
  "criterion",
  "path-absolutize",
+ "regex",
  "serde_json",
 ]
 
@@ -447,10 +463,12 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.7.0"
+version = "1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e076559ef8e241f2ae3479e36f97bd5741c0330689e217ad51ce2c76808b868a"
+checksum = "48aaa5748ba571fb95cd2c85c09f629215d3a6ece942baa100950af03a34f733"
 dependencies = [
+ "aho-corasick",
+ "memchr",
  "regex-syntax",
 ]
 

Cargo.toml

@@ -9,6 +9,7 @@ anyhow = "*"
 # clap 4 until (at least) 4.0.32 have scrapped actual color support. we stay on 3.x until that's fixed.
 clap = "3.*"
 path-absolutize = "*"
+regex = "1.7.1"
 serde_json = "1.0.91"
 
 [profile.release]

src/action.rs

@@ -4,6 +4,7 @@ pub(crate) const GROUPS: &str = "groups";
 pub(crate) const IMPORT: &str = "import";
 pub(crate) const NEW: &str = "new";
 pub(crate) const REMOVE: &str = "remove";
+pub(crate) const SEARCH: &str = "search";
 pub(crate) const SHOW: &str = "show";
 pub(crate) const SYNC: &str = "sync";
 pub(crate) const UNMANAGED: &str = "unmanaged";

src/args.rs

@@ -44,6 +44,12 @@ fn get_arg_parser() -> Command<'static> {
                 .arg_required_else_help(true)
                 .arg(Arg::new("groups").multiple_values(true)),
         )
+        .subcommand(
+            Command::new(SEARCH)
+                .about("search for packages which match a provided regex")
+                .arg_required_else_help(true)
+                .arg(Arg::new("string")),
+        )
         .subcommand(
             Command::new(SHOW)
                 .about("show packages under an imported group")

src/core.rs

@@ -5,6 +5,7 @@ use std::path::PathBuf;
 
 use anyhow::{ensure, Context, Result};
 use clap::ArgMatches;
+use regex::Regex;
 
 use crate::action;
 use crate::args;
@@ -28,7 +29,6 @@ impl Pacdef {
 
     #[allow(clippy::unit_arg)]
     pub fn run_action_from_arg(self) -> Result<()> {
-        // TODO new
         // TODO review
         // TODO search
         match self.args.subcommand() {
@@ -45,6 +45,9 @@ impl Pacdef {
             Some((action::SHOW, groups)) => {
                 self.show_group_content(groups).context("showing groups")
             }
+            Some((action::SEARCH, args)) => {
+                self.search_packages(args).context("searching packages")
+            }
             Some((action::SYNC, _)) => Ok(self.install_packages()),
             Some((action::UNMANAGED, _)) => Ok(self.show_unmanaged_packages()),
             Some((action::VERSION, _)) => Ok(self.show_version()),
@@ -236,6 +239,34 @@ impl Pacdef {
 
         Ok(())
     }
+
+    fn search_packages(&self, args: &ArgMatches) -> Result<()> {
+        let search_string = args
+            .get_one::<String>("string")
+            .context("getting search string from arg")?;
+
+        let re = Regex::new(search_string)?;
+
+        let mut vec = vec![];
+
+        for group in &self.groups {
+            for section in &group.sections {
+                for package in &section.packages {
+                    if re.is_match(&package.name) {
+                        vec.push((group, section, package))
+                    }
+                }
+            }
+        }
+
+        vec.sort_unstable();
+
+        for (g, s, p) in vec {
+            println!("{}:{}:{}", g.name, s.name, p.name);
+        }
+
+        Ok(())
+    }
 }
 
 fn get_assumed_group_file_names(arg_match: &ArgMatches) -> Result<Vec<PathBuf>> {