Add missing psmisc features: regexp/namespace filters for killall, fuser utility

Cargo.toml

@@ -1,6 +1,6 @@
 [workspace]
 resolver = "3"
-members = ["crates/faulx", "crates/procedre", "crates/helpers"]
+members = ["crates/faulx", "crates/procedre", "crates/helpers", "crates/fuser"]
 
 [workspace.package]
 authors = ["martabal"]
@@ -24,6 +24,11 @@ nix = { version = "0.30.1", default-features = false, features = [
 ] }
 orx-parallel = { version = "3.4.0", default-features = false }
 rayon = { version = "1.11.0", default-features = false }
+regex = { version = "1.11", default-features = false, features = [
+  "std",
+  "perf",
+  "unicode-case",
+] }
 
 [profile.release]
 opt-level = 3

README.md

@@ -2,14 +2,14 @@
 
 Implementation of psmisc utilities in rust. This is an early WIP.
 
-WIP:
+Implemented:
 
 - faulx (killall implementation)
 - procedre (pstree implementation)
+- fuser (identify processes using files/sockets)
 
 TODO:
 
-- fuser
 - prstat
 - pslog
 - peekfd

crates/faulx/Cargo.toml

@@ -18,6 +18,7 @@ workspace = true
 default = ["orx-parallel"]
 rayon = ["dep:rayon"]
 orx-parallel = ["dep:orx-parallel"]
+regex = ["dep:regex"]
 
 [dependencies]
 clap.workspace = true
@@ -26,3 +27,4 @@ humantime.workspace = true
 nix.workspace = true
 orx-parallel = { workspace = true, optional = true }
 rayon = { workspace = true, optional = true }
+regex = { workspace = true, optional = true }

crates/faulx/README.md

@@ -14,8 +14,5 @@ options implemented:
 - interactive mode
 - ignore case
 - kill process running as user
-
-TODO:
-
 - regexp
 - processes in the same namespace

crates/faulx/src/cli.rs

@@ -54,4 +54,13 @@ pub struct FaulxArgs {
     /// Report if the signal was successfully sent
     #[arg(long)]
     pub verbose: bool,
+
+    /// Interpret process_names as an extended regular expression
+    #[cfg(feature = "regex")]
+    #[arg(short = 'r', long)]
+    pub regexp: bool,
+
+    /// Match processes that belong to the same namespaces as PID
+    #[arg(short = 'n', long)]
+    pub namespace: Option<String>,
 }

crates/faulx/src/lib.rs

@@ -4,7 +4,6 @@ use nix::unistd::{User, setuid};
 
 pub mod cli;
 pub mod processes;
-pub mod signals;
 
 #[cfg(all(feature = "rayon", feature = "orx-parallel"))]
 compile_error!("feature \"rayon\" and feature \"oxc-parallel\" cannot be enabled at the same time");

crates/faulx/src/main.rs

@@ -5,7 +5,7 @@ use std::{
 };
 
 use clap::Parser;
-use helpers::{macros::QUIET, qprintln};
+use helpers::{list_signals, macros::QUIET, parse_signal, qprintln};
 use nix::{
     sys::signal::{Signal, kill},
     unistd::Pid,
@@ -15,7 +15,6 @@ use faulx::{
     change_user,
     cli::{FaulxArgs, MAX_NAMES},
     processes::{OptionsPids, list_pids},
-    signals::{list_signals, parse_signal},
 };
 
 fn main() {
@@ -55,6 +54,9 @@ fn main() {
             younger_than: args.younger_than,
             older_than: args.older_than,
             ignore_case: args.ignore_case,
+            #[cfg(feature = "regex")]
+            regexp: args.regexp,
+            namespace: args.namespace.as_deref(),
         };
         let pids = match list_pids(process_name, &opts) {
             Ok(pids) => pids,