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//! `proc in` - Filter processes by working directory
//!
//! Examples:
//! proc in . # Processes in current directory
//! proc in /path/to/project # Processes in specific directory
//! proc in . --by node # Processes named node in cwd
//! proc in . --by node --cmd # ... or with node anywhere in their command line
//! proc in ~/projects # Processes in ~/projects
use crate::core::filters::resolve_dir;
use crate::core::{sort_processes, NameMatch, Process, SortKey, StatusFilter};
use crate::error::{ProcError, Result};
use crate::ui::{OutputFormat, Printer};
use clap::Args;
use std::path::PathBuf;
/// Filter processes by working directory
#[derive(Args, Debug)]
pub struct InCommand {
/// Directory path (absolute, relative, or . for cwd)
pub path: String,
/// Filter by process name
#[arg(long = "by", short = 'b')]
pub by_name: Option<String>,
/// Match --by as a substring of the process name or full command line (like pkill -f)
#[arg(long)]
pub cmd: bool,
/// Only show processes using more than this CPU %
#[arg(long)]
pub min_cpu: Option<f32>,
/// Only show processes using more than this memory (MB)
#[arg(long)]
pub min_mem: Option<f64>,
/// Filter by status: running, sleeping, stopped, zombie
#[arg(long, value_enum, ignore_case = true)]
pub status: Option<StatusFilter>,
/// Only show processes running longer than this (seconds)
#[arg(long)]
pub min_uptime: Option<u64>,
/// Only show children of this parent PID
#[arg(long)]
pub parent: Option<u32>,
/// Output as JSON
#[arg(long, short = 'j')]
pub json: bool,
/// Show verbose output with command line, cwd, parent PID, and uptime
#[arg(long, short = 'v')]
pub verbose: bool,
/// Print full directories and arguments instead of fitting the terminal width
#[arg(long, short = 'w')]
pub wide: bool,
/// Limit the number of results
#[arg(long, short = 'n')]
pub limit: Option<usize>,
/// Sort by: cpu, mem (biggest first); pid, name (ascending). Ties come by PID
#[arg(long, short = 's', value_enum, default_value_t = SortKey::Cpu)]
pub sort: SortKey,
}
impl InCommand {
/// Expand ~ to home directory
fn expand_tilde(path: &str) -> PathBuf {
if let Some(stripped) = path.strip_prefix("~/") {
if let Ok(home) = std::env::var("HOME") {
return PathBuf::from(home).join(stripped);
}
} else if path == "~" {
if let Ok(home) = std::env::var("HOME") {
return PathBuf::from(home);
}
}
PathBuf::from(path)
}
/// Executes the in command, listing processes in the specified directory.
pub fn execute(&self) -> Result<()> {
let format = if self.json {
OutputFormat::Json
} else {
OutputFormat::Human
};
let printer = Printer::new(format, self.verbose).wide(self.wide);
// Get base process list
let mut processes = if let Some(ref name) = self.by_name {
Process::find_by_name(name, NameMatch::from_flag(self.cmd))?
} else {
Process::find_all()?
};
// Real CPU readings for the table, --min-cpu and --sort cpu
Process::measure_cpu(&mut processes);
// Resolve directory path
let dir_filter = resolve_dir(if self.path == "." {
PathBuf::from(".")
} else {
Self::expand_tilde(&self.path)
})?;
// Directory filter (required for this command)
processes.retain(|p| crate::core::filters::matches_in_filter(p, &dir_filter));
// A missing path with nothing running there is a typo, not an empty
// directory (same as `proc for`). A deleted directory that processes
// still run in is kept, so its leftovers can be found.
if processes.is_empty() && !dir_filter.is_dir() {
return Err(ProcError::InvalidInput(format!(
"Directory not found: {}",
self.path
)));
}
// Apply filters
processes.retain(|p| self.keeps(p));
// Sort processes
sort_processes(&mut processes, self.sort);
// Apply limit if specified
if let Some(limit) = self.limit {
processes.truncate(limit);
}
// Build context string for output
let mut context_parts = vec![format!("in {}", dir_filter.display())];
if let Some(ref name) = self.by_name {
context_parts.push(format!("by '{}'", name));
}
let context = Some(context_parts.join(" "));
printer.print_processes_as("in", &processes, context.as_deref());
Ok(())
}
/// Whether a process passes every filter but the directory: `--min-cpu`,
/// `--min-mem`, `--status`, `--min-uptime` and `--parent`.
fn keeps(&self, p: &Process) -> bool {
// CPU filter
if let Some(min_cpu) = self.min_cpu {
if p.cpu_percent < min_cpu {
return false;
}
}
// Memory filter
if let Some(min_mem) = self.min_mem {
if p.memory_mb < min_mem {
return false;
}
}
// Status filter
if let Some(status) = self.status {
if !status.matches(p.status) {
return false;
}
}
// Uptime filter
if let Some(min_uptime) = self.min_uptime {
if let Some(start_time) = p.start_time {
let now = std::time::SystemTime::now()
.duration_since(std::time::UNIX_EPOCH)
.map(|d| d.as_secs())
.unwrap_or(0);
if now.saturating_sub(start_time) < min_uptime {
return false;
}
} else {
return false;
}
}
// Parent PID filter
if let Some(ppid) = self.parent {
if p.parent_pid != Some(ppid) {
return false;
}
}
true
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::core::ProcessStatus;
fn command() -> InCommand {
InCommand {
path: ".".to_string(),
by_name: None,
cmd: false,
min_cpu: None,
min_mem: None,
status: None,
min_uptime: None,
parent: None,
json: false,
verbose: false,
wide: false,
limit: None,
sort: SortKey::Cpu,
}
}
/// A process record with no start time, which some processes really are
fn bare_process() -> Process {
Process {
pid: 1,
name: "x".to_string(),
exe_path: None,
cwd: None,
command: None,
argv0: None,
raw: None,
cpu_percent: 0.0,
memory_mb: 0.0,
status: ProcessStatus::Sleeping,
user: None,
parent_pid: None,
start_time: None,
uptime_secs: None,
}
}
#[test]
fn a_process_with_no_start_time_fails_min_uptime() {
let cmd = InCommand {
min_uptime: Some(0),
..command()
};
assert!(!cmd.keeps(&bare_process()));
assert!(command().keeps(&bare_process()));
}
#[test]
fn a_process_that_passes_every_filter_is_kept() {
let mut process = bare_process();
process.start_time = Some(0);
process.parent_pid = Some(7);
let cmd = InCommand {
min_cpu: Some(0.0),
min_mem: Some(0.0),
status: Some(StatusFilter::Sleeping),
min_uptime: Some(1),
parent: Some(7),
..command()
};
assert!(cmd.keeps(&process));
let other_parent = InCommand {
parent: Some(8),
..command()
};
assert!(!other_parent.keeps(&process));
}
}