mirror of
https://github.com/nushell/nushell.git
synced 2024-11-28 19:33:47 +01:00
Add ulimit command (#11324)
# Description Add `ulimit` command to Nushell. Closes #9563 Closes #3976 Related pr #11246 Reference: https://github.com/fish-shell/fish-shell/blob/master/fish-rust/src/builtins/ulimit.rs https://github.com/mirror/busybox/blob/master/shell/shell_common.c#L529 # User-Facing Changes ``` nushell on ulimit is 📦 v0.88.2 via 🦀 v1.72.1 [3/246] ❯ ulimit -a ╭────┬──────────────────────────────────────────────────────────────────────────┬───────────┬───────────╮ │ # │ description │ soft │ hard │ ├────┼──────────────────────────────────────────────────────────────────────────┼───────────┼───────────┤ │ 0 │ Maximum size of core files created (kB, -c) │ unlimited │ unlimited │ │ 1 │ Maximum size of a process's data segment (kB, -d) │ unlimited │ unlimited │ │ 2 │ Controls of maximum nice priority (-e) │ 0 │ 0 │ │ 3 │ Maximum size of files created by the shell (kB, -f) │ unlimited │ unlimited │ │ 4 │ Maximum number of pending signals (-i) │ 55273 │ 55273 │ │ 5 │ Maximum size that may be locked into memory (kB, -l) │ 8192 │ 8192 │ │ 6 │ Maximum resident set size (kB, -m) │ unlimited │ unlimited │ │ 7 │ Maximum number of open file descriptors (-n) │ 1024 │ 524288 │ │ 8 │ Maximum bytes in POSIX message queues (kB, -q) │ 800 │ 800 │ │ 9 │ Maximum realtime scheduling priority (-r) │ 0 │ 0 │ │ 10 │ Maximum stack size (kB, -s) │ 8192 │ unlimited │ │ 11 │ Maximum amount of CPU time in seconds (seconds, -t) │ unlimited │ unlimited │ │ 12 │ Maximum number of processes available to the current user (-u) │ 55273 │ 55273 │ │ 13 │ Maximum amount of virtual memory available to each process (kB, -v) │ unlimited │ unlimited │ │ 14 │ Maximum number of file locks (-x) │ unlimited │ unlimited │ │ 15 │ Maximum contiguous realtime CPU time (-y) │ unlimited │ unlimited │ ╰────┴──────────────────────────────────────────────────────────────────────────┴───────────┴───────────╯ nushell on ulimit is 📦 v0.88.2 via 🦀 v1.72.1 ❯ ulimit -s ╭───┬─────────────────────────────┬──────┬───────────╮ │ # │ description │ soft │ hard │ ├───┼─────────────────────────────┼──────┼───────────┤ │ 0 │ Maximum stack size (kB, -s) │ 8192 │ unlimited │ ╰───┴─────────────────────────────┴──────┴───────────╯ nushell on ulimit is 📦 v0.88.2 via 🦀 v1.72.1 ❯ ulimit -s 100 nushell on ulimit is 📦 v0.88.2 via 🦀 v1.72.1 ❯ ulimit -s ╭───┬─────────────────────────────┬──────┬──────╮ │ # │ description │ soft │ hard │ ├───┼─────────────────────────────┼──────┼──────┤ │ 0 │ Maximum stack size (kB, -s) │ 100 │ 100 │ ╰───┴─────────────────────────────┴──────┴──────╯ nushell on ulimit is 📦 v0.88.2 via 🦀 v1.72.1 ``` # Tests + Formatting - [x] add commands::ulimit::limit_set_soft1 - [x] add commands::ulimit::limit_set_soft2 - [x] add commands::ulimit::limit_set_hard1 - [x] add commands::ulimit::limit_set_hard2 - [x] add commands::ulimit::limit_set_invalid1 - [x] add commands::ulimit::limit_set_invalid2 - [x] `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - [x] `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to check that you're using the standard code style - [x] `cargo test --workspace` to check that all tests pass (on Windows make sure to [enable developer mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging)) - [x] `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library
This commit is contained in:
parent
92d968b8c8
commit
84742275a1
@ -104,7 +104,7 @@ winreg = "0.52"
|
||||
[target.'cfg(unix)'.dependencies]
|
||||
libc = "0.2"
|
||||
umask = "2.1"
|
||||
nix = { version = "0.27", default-features = false, features = ["user"] }
|
||||
nix = { version = "0.27", default-features = false, features = ["user", "resource"] }
|
||||
|
||||
[target.'cfg(all(unix, not(target_os = "macos"), not(target_os = "android"), not(target_os = "ios")))'.dependencies]
|
||||
procfs = "0.16.0"
|
||||
|
@ -233,6 +233,9 @@ pub fn add_shell_command_context(mut engine_state: EngineState) -> EngineState {
|
||||
Whoami,
|
||||
};
|
||||
|
||||
#[cfg(unix)]
|
||||
bind_command! { ULimit };
|
||||
|
||||
// Date
|
||||
bind_command! {
|
||||
Date,
|
||||
|
@ -7,6 +7,8 @@ mod is_terminal;
|
||||
mod kill;
|
||||
mod sleep;
|
||||
mod term_size;
|
||||
#[cfg(unix)]
|
||||
mod ulimit;
|
||||
mod whoami;
|
||||
|
||||
pub use ansi::{Ansi, AnsiLink, AnsiStrip};
|
||||
@ -20,4 +22,6 @@ pub use is_terminal::IsTerminal;
|
||||
pub use kill::Kill;
|
||||
pub use sleep::Sleep;
|
||||
pub use term_size::TermSize;
|
||||
#[cfg(unix)]
|
||||
pub use ulimit::ULimit;
|
||||
pub use whoami::Whoami;
|
||||
|
574
crates/nu-command/src/platform/ulimit.rs
Normal file
574
crates/nu-command/src/platform/ulimit.rs
Normal file
@ -0,0 +1,574 @@
|
||||
use nix::sys::resource::{rlim_t, Resource, RLIM_INFINITY};
|
||||
use nu_engine::CallExt;
|
||||
use nu_protocol::{
|
||||
ast::Call,
|
||||
engine::{Command, EngineState, Stack},
|
||||
Category, Example, IntoPipelineData, PipelineData, Record, ShellError, Signature, Span,
|
||||
Spanned, SyntaxShape, Type, Value,
|
||||
};
|
||||
use once_cell::sync::Lazy;
|
||||
|
||||
/// An object contains resource related parameters
|
||||
struct ResourceInfo<'a> {
|
||||
name: &'a str,
|
||||
desc: &'a str,
|
||||
flag: char,
|
||||
multiplier: rlim_t,
|
||||
resource: Resource,
|
||||
}
|
||||
|
||||
impl<'a> ResourceInfo<'a> {
|
||||
/// Create a `ResourceInfo` object
|
||||
fn new(
|
||||
name: &'a str,
|
||||
desc: &'a str,
|
||||
flag: char,
|
||||
multiplier: rlim_t,
|
||||
resource: Resource,
|
||||
) -> Self {
|
||||
Self {
|
||||
name,
|
||||
desc,
|
||||
flag,
|
||||
multiplier,
|
||||
resource,
|
||||
}
|
||||
}
|
||||
|
||||
/// Get unit
|
||||
fn get_unit(&self) -> &str {
|
||||
if self.resource == Resource::RLIMIT_CPU {
|
||||
"(seconds, "
|
||||
} else if self.multiplier == 1 {
|
||||
"("
|
||||
} else {
|
||||
"(kB, "
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Default for ResourceInfo<'a> {
|
||||
fn default() -> Self {
|
||||
Self {
|
||||
name: "file-size",
|
||||
desc: "Maximum size of files created by the shell",
|
||||
flag: 'f',
|
||||
multiplier: 1024,
|
||||
resource: Resource::RLIMIT_FSIZE,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static RESOURCE_ARRAY: Lazy<Vec<ResourceInfo>> = Lazy::new(|| {
|
||||
let resources = [
|
||||
#[cfg(any(target_os = "freebsd", target_os = "dragonfly"))]
|
||||
(
|
||||
"socket-buffers",
|
||||
"Maximum size of socket buffers",
|
||||
'b',
|
||||
1024,
|
||||
Resource::RLIMIT_SBSIZE,
|
||||
),
|
||||
(
|
||||
"core-size",
|
||||
"Maximum size of core files created",
|
||||
'c',
|
||||
1024,
|
||||
Resource::RLIMIT_CORE,
|
||||
),
|
||||
(
|
||||
"data-size",
|
||||
"Maximum size of a process's data segment",
|
||||
'd',
|
||||
1024,
|
||||
Resource::RLIMIT_DATA,
|
||||
),
|
||||
#[cfg(any(target_os = "android", target_os = "linux"))]
|
||||
(
|
||||
"nice",
|
||||
"Controls of maximum nice priority",
|
||||
'e',
|
||||
1,
|
||||
Resource::RLIMIT_NICE,
|
||||
),
|
||||
(
|
||||
"file-size",
|
||||
"Maximum size of files created by the shell",
|
||||
'f',
|
||||
1024,
|
||||
Resource::RLIMIT_FSIZE,
|
||||
),
|
||||
#[cfg(any(target_os = "android", target_os = "linux"))]
|
||||
(
|
||||
"pending-signals",
|
||||
"Maximum number of pending signals",
|
||||
'i',
|
||||
1,
|
||||
Resource::RLIMIT_SIGPENDING,
|
||||
),
|
||||
#[cfg(any(
|
||||
target_os = "android",
|
||||
target_os = "freebsd",
|
||||
target_os = "openbsd",
|
||||
target_os = "linux",
|
||||
target_os = "netbsd"
|
||||
))]
|
||||
(
|
||||
"lock-size",
|
||||
"Maximum size that may be locked into memory",
|
||||
'l',
|
||||
1024,
|
||||
Resource::RLIMIT_MEMLOCK,
|
||||
),
|
||||
#[cfg(any(
|
||||
target_os = "android",
|
||||
target_os = "freebsd",
|
||||
target_os = "netbsd",
|
||||
target_os = "openbsd",
|
||||
target_os = "linux",
|
||||
target_os = "aix",
|
||||
))]
|
||||
(
|
||||
"resident-set-size",
|
||||
"Maximum resident set size",
|
||||
'm',
|
||||
1024,
|
||||
Resource::RLIMIT_RSS,
|
||||
),
|
||||
(
|
||||
"file-descriptor-count",
|
||||
"Maximum number of open file descriptors",
|
||||
'n',
|
||||
1,
|
||||
Resource::RLIMIT_NOFILE,
|
||||
),
|
||||
#[cfg(any(target_os = "android", target_os = "linux"))]
|
||||
(
|
||||
"queue-size",
|
||||
"Maximum bytes in POSIX message queues",
|
||||
'q',
|
||||
1024,
|
||||
Resource::RLIMIT_MSGQUEUE,
|
||||
),
|
||||
#[cfg(any(target_os = "android", target_os = "linux"))]
|
||||
(
|
||||
"realtime-priority",
|
||||
"Maximum realtime scheduling priority",
|
||||
'r',
|
||||
1,
|
||||
Resource::RLIMIT_RTPRIO,
|
||||
),
|
||||
(
|
||||
"stack-size",
|
||||
"Maximum stack size",
|
||||
's',
|
||||
1024,
|
||||
Resource::RLIMIT_STACK,
|
||||
),
|
||||
(
|
||||
"cpu-time",
|
||||
"Maximum amount of CPU time in seconds",
|
||||
't',
|
||||
1,
|
||||
Resource::RLIMIT_CPU,
|
||||
),
|
||||
#[cfg(any(
|
||||
target_os = "android",
|
||||
target_os = "freebsd",
|
||||
target_os = "netbsd",
|
||||
target_os = "openbsd",
|
||||
target_os = "linux",
|
||||
target_os = "aix",
|
||||
))]
|
||||
(
|
||||
"process-count",
|
||||
"Maximum number of processes available to the current user",
|
||||
'u',
|
||||
1,
|
||||
Resource::RLIMIT_NPROC,
|
||||
),
|
||||
#[cfg(not(any(target_os = "freebsd", target_os = "netbsd", target_os = "openbsd")))]
|
||||
(
|
||||
"virtual-memory-size",
|
||||
"Maximum amount of virtual memory available to each process",
|
||||
'v',
|
||||
1024,
|
||||
Resource::RLIMIT_AS,
|
||||
),
|
||||
#[cfg(target_os = "freebsd")]
|
||||
(
|
||||
"swap-size",
|
||||
"Maximum swap space",
|
||||
'w',
|
||||
1024,
|
||||
Resource::RLIMIT_SWAP,
|
||||
),
|
||||
#[cfg(any(target_os = "android", target_os = "linux"))]
|
||||
(
|
||||
"file-locks",
|
||||
"Maximum number of file locks",
|
||||
'x',
|
||||
1,
|
||||
Resource::RLIMIT_LOCKS,
|
||||
),
|
||||
#[cfg(target_os = "linux")]
|
||||
(
|
||||
"realtime-maxtime",
|
||||
"Maximum contiguous realtime CPU time",
|
||||
'y',
|
||||
1,
|
||||
Resource::RLIMIT_RTTIME,
|
||||
),
|
||||
#[cfg(target_os = "freebsd")]
|
||||
(
|
||||
"kernel-queues",
|
||||
"Maximum number of kqueues",
|
||||
'K',
|
||||
1,
|
||||
Resource::RLIMIT_KQUEUES,
|
||||
),
|
||||
#[cfg(target_os = "freebsd")]
|
||||
(
|
||||
"ptys",
|
||||
"Maximum number of pseudo-terminals",
|
||||
'P',
|
||||
1,
|
||||
Resource::RLIMIT_NPTY,
|
||||
),
|
||||
];
|
||||
|
||||
let mut resource_array = Vec::new();
|
||||
for (name, desc, flag, multiplier, res) in resources {
|
||||
resource_array.push(ResourceInfo::new(name, desc, flag, multiplier, res));
|
||||
}
|
||||
|
||||
resource_array
|
||||
});
|
||||
|
||||
/// Convert `rlim_t` to `Value` representation
|
||||
fn limit_to_value(limit: rlim_t, multiplier: rlim_t, span: Span) -> Result<Value, ShellError> {
|
||||
if limit == RLIM_INFINITY {
|
||||
return Ok(Value::string("unlimited", span));
|
||||
}
|
||||
|
||||
let val = match i64::try_from(limit / multiplier) {
|
||||
Ok(v) => v,
|
||||
Err(e) => {
|
||||
return Err(ShellError::CantConvert {
|
||||
to_type: "i64".into(),
|
||||
from_type: "rlim_t".into(),
|
||||
span,
|
||||
help: Some(e.to_string()),
|
||||
});
|
||||
}
|
||||
};
|
||||
|
||||
Ok(Value::int(val, span))
|
||||
}
|
||||
|
||||
/// Get maximum length of all flag descriptions
|
||||
fn max_desc_len(call: &Call, print_all: bool) -> usize {
|
||||
let mut desc_len = 0;
|
||||
let mut unit_len = 0;
|
||||
|
||||
for res in RESOURCE_ARRAY.iter() {
|
||||
if !print_all && !call.has_flag(res.name) {
|
||||
continue;
|
||||
}
|
||||
|
||||
desc_len = res.desc.len().max(desc_len);
|
||||
unit_len = res.get_unit().len().max(unit_len);
|
||||
}
|
||||
|
||||
// Use `RLIMIT_FSIZE` limit if no resource flag provided.
|
||||
if desc_len == 0 {
|
||||
let res = ResourceInfo::default();
|
||||
desc_len = res.desc.len().max(desc_len);
|
||||
unit_len = res.get_unit().len().max(unit_len);
|
||||
}
|
||||
|
||||
// desc.len() + unit.len() + '-X)'.len()
|
||||
desc_len + unit_len + 3
|
||||
}
|
||||
|
||||
/// Fill `ResourceInfo` to the record entry
|
||||
fn fill_record(
|
||||
res: &ResourceInfo,
|
||||
max_len: usize,
|
||||
soft: bool,
|
||||
hard: bool,
|
||||
span: Span,
|
||||
) -> Result<Record, ShellError> {
|
||||
let mut record = Record::new();
|
||||
let mut desc = String::new();
|
||||
|
||||
desc.push_str(res.desc);
|
||||
|
||||
debug_assert!(res.desc.len() + res.get_unit().len() + 3 <= max_len);
|
||||
let width = max_len - res.desc.len() - res.get_unit().len() - 3;
|
||||
if width == 0 {
|
||||
desc.push_str(format!(" {}-{})", res.get_unit(), res.flag).as_str());
|
||||
} else {
|
||||
desc.push_str(format!("{:>width$} {}-{})", ' ', res.get_unit(), res.flag).as_str());
|
||||
}
|
||||
|
||||
record.push("description", Value::string(desc, span));
|
||||
|
||||
let (soft_limit, hard_limit) = getrlimit(res.resource)?;
|
||||
|
||||
if soft {
|
||||
let soft_limit = limit_to_value(soft_limit, res.multiplier, span)?;
|
||||
record.push("soft", soft_limit);
|
||||
}
|
||||
|
||||
if hard {
|
||||
let hard_limit = limit_to_value(hard_limit, res.multiplier, span)?;
|
||||
record.push("hard", hard_limit);
|
||||
}
|
||||
|
||||
Ok(record)
|
||||
}
|
||||
|
||||
/// Set limits
|
||||
fn set_limits(
|
||||
spanned_limit: &Spanned<String>,
|
||||
res: &ResourceInfo,
|
||||
soft: bool,
|
||||
hard: bool,
|
||||
) -> Result<(), ShellError> {
|
||||
let (mut soft_limit, mut hard_limit) = getrlimit(res.resource)?;
|
||||
let new_limit = parse_limit(spanned_limit, res.multiplier, soft, soft_limit, hard_limit)?;
|
||||
|
||||
if hard {
|
||||
hard_limit = new_limit;
|
||||
}
|
||||
|
||||
if soft {
|
||||
soft_limit = new_limit;
|
||||
|
||||
// Do not attempt to set the soft limit higher than the hard limit.
|
||||
if (new_limit > hard_limit || new_limit == RLIM_INFINITY) && hard_limit != RLIM_INFINITY {
|
||||
soft_limit = hard_limit;
|
||||
}
|
||||
}
|
||||
|
||||
setrlimit(res.resource, soft_limit, hard_limit)
|
||||
}
|
||||
|
||||
/// Print limits
|
||||
fn print_limits(
|
||||
call: &Call,
|
||||
print_all: bool,
|
||||
soft: bool,
|
||||
hard: bool,
|
||||
) -> Result<PipelineData, ShellError> {
|
||||
let mut output = Vec::new();
|
||||
let mut print_default_limit = true;
|
||||
let max_len = max_desc_len(call, print_all);
|
||||
|
||||
for res in RESOURCE_ARRAY.iter() {
|
||||
if !print_all {
|
||||
// Print specified limit.
|
||||
if !call.has_flag(res.name) {
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
let record = fill_record(res, max_len, soft, hard, call.head)?;
|
||||
output.push(Value::record(record, call.head));
|
||||
|
||||
if print_default_limit {
|
||||
print_default_limit = false;
|
||||
}
|
||||
}
|
||||
|
||||
// Print `RLIMIT_FSIZE` limit if no resource flag provided.
|
||||
if print_default_limit {
|
||||
let res = ResourceInfo::default();
|
||||
let record = fill_record(&res, max_len, soft, hard, call.head)?;
|
||||
output.push(Value::record(record, call.head));
|
||||
}
|
||||
|
||||
Ok(Value::list(output, call.head).into_pipeline_data())
|
||||
}
|
||||
|
||||
/// Wrap `nix::sys::resource::getrlimit`
|
||||
fn setrlimit(res: Resource, soft_limit: rlim_t, hard_limit: rlim_t) -> Result<(), ShellError> {
|
||||
nix::sys::resource::setrlimit(res, soft_limit, hard_limit).map_err(|e| {
|
||||
ShellError::GenericError {
|
||||
error: e.to_string(),
|
||||
msg: String::new(),
|
||||
span: None,
|
||||
help: None,
|
||||
inner: vec![],
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
/// Wrap `nix::sys::resource::setrlimit`
|
||||
fn getrlimit(res: Resource) -> Result<(rlim_t, rlim_t), ShellError> {
|
||||
nix::sys::resource::getrlimit(res).map_err(|e| ShellError::GenericError {
|
||||
error: e.to_string(),
|
||||
msg: String::new(),
|
||||
span: None,
|
||||
help: None,
|
||||
inner: vec![],
|
||||
})
|
||||
}
|
||||
|
||||
/// Parse user input
|
||||
fn parse_limit(
|
||||
spanned_limit: &Spanned<String>,
|
||||
multiplier: rlim_t,
|
||||
soft: bool,
|
||||
soft_limit: rlim_t,
|
||||
hard_limit: rlim_t,
|
||||
) -> Result<rlim_t, ShellError> {
|
||||
let limit = &spanned_limit.item;
|
||||
let span = spanned_limit.span;
|
||||
|
||||
if limit.eq("unlimited") {
|
||||
Ok(RLIM_INFINITY)
|
||||
} else if limit.eq("soft") {
|
||||
if soft {
|
||||
Ok(hard_limit)
|
||||
} else {
|
||||
Ok(soft_limit)
|
||||
}
|
||||
} else if limit.eq("hard") {
|
||||
Ok(hard_limit)
|
||||
} else {
|
||||
let v = limit
|
||||
.parse::<rlim_t>()
|
||||
.map_err(|e| ShellError::CantConvert {
|
||||
to_type: "rlim_t".into(),
|
||||
from_type: "String".into(),
|
||||
span,
|
||||
help: Some(e.to_string()),
|
||||
})?;
|
||||
|
||||
let (value, overflow) = v.overflowing_mul(multiplier);
|
||||
if overflow {
|
||||
return Err(ShellError::OperatorOverflow {
|
||||
msg: "Multiple overflow".into(),
|
||||
span,
|
||||
help: String::new(),
|
||||
});
|
||||
} else {
|
||||
Ok(value)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Clone)]
|
||||
pub struct ULimit;
|
||||
|
||||
impl Command for ULimit {
|
||||
fn name(&self) -> &str {
|
||||
"ulimit"
|
||||
}
|
||||
|
||||
fn usage(&self) -> &str {
|
||||
"Set or get resource usage limits."
|
||||
}
|
||||
|
||||
fn signature(&self) -> Signature {
|
||||
let mut sig = Signature::build("ulimit")
|
||||
.input_output_types(vec![
|
||||
(Type::Nothing, Type::Table(vec![])),
|
||||
(Type::Nothing, Type::Nothing),
|
||||
])
|
||||
.switch("soft", "Sets soft resource limit", Some('S'))
|
||||
.switch("hard", "Sets hard resource limit", Some('H'))
|
||||
.switch("all", "Prints all current limits", Some('a'))
|
||||
.optional("limit", SyntaxShape::String, "Limit value.")
|
||||
.category(Category::Platform);
|
||||
|
||||
for res in RESOURCE_ARRAY.iter() {
|
||||
sig = sig.switch(res.name, res.desc, Some(res.flag));
|
||||
}
|
||||
|
||||
sig
|
||||
}
|
||||
|
||||
fn run(
|
||||
&self,
|
||||
engine_state: &EngineState,
|
||||
stack: &mut Stack,
|
||||
call: &Call,
|
||||
_input: PipelineData,
|
||||
) -> Result<PipelineData, ShellError> {
|
||||
let mut soft = call.has_flag("soft");
|
||||
let mut hard = call.has_flag("hard");
|
||||
let all = call.has_flag("all");
|
||||
|
||||
if !hard && !soft {
|
||||
// Set both hard and soft limits if neither was specified.
|
||||
hard = true;
|
||||
soft = true;
|
||||
}
|
||||
|
||||
if let Some(spanned_limit) = call.opt::<Spanned<String>>(engine_state, stack, 0)? {
|
||||
let mut set_default_limit = true;
|
||||
|
||||
for res in RESOURCE_ARRAY.iter() {
|
||||
if call.has_flag(res.name) {
|
||||
set_limits(&spanned_limit, res, soft, hard)?;
|
||||
|
||||
if set_default_limit {
|
||||
set_default_limit = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Set `RLIMIT_FSIZE` limit if no resource flag provided.
|
||||
if set_default_limit {
|
||||
let res = ResourceInfo::default();
|
||||
set_limits(&spanned_limit, &res, hard, soft)?;
|
||||
}
|
||||
|
||||
Ok(PipelineData::Empty)
|
||||
} else {
|
||||
print_limits(call, all, soft, hard)
|
||||
}
|
||||
}
|
||||
|
||||
fn examples(&self) -> Vec<Example> {
|
||||
vec![
|
||||
Example {
|
||||
description: "Print all current limits",
|
||||
example: "ulimit -a",
|
||||
result: None,
|
||||
},
|
||||
Example {
|
||||
description: "Print specified limits",
|
||||
example: "ulimit --core-size --data-size --file-size",
|
||||
result: None,
|
||||
},
|
||||
Example {
|
||||
description: "Set limit",
|
||||
example: "ulimit --core-size 102400",
|
||||
result: None,
|
||||
},
|
||||
Example {
|
||||
description: "Set stack size soft limit",
|
||||
example: "ulimit -s -S 10240",
|
||||
result: None,
|
||||
},
|
||||
Example {
|
||||
description: "Set virtual memory size hard limit",
|
||||
example: "ulimit -v -H 10240",
|
||||
result: None,
|
||||
},
|
||||
Example {
|
||||
description: "Set core size limit to unlimited",
|
||||
example: "ulimit -c unlimited",
|
||||
result: None,
|
||||
},
|
||||
]
|
||||
}
|
||||
|
||||
fn search_terms(&self) -> Vec<&str> {
|
||||
vec!["resource", "limits"]
|
||||
}
|
||||
}
|
@ -106,6 +106,8 @@ mod touch;
|
||||
mod transpose;
|
||||
mod try_;
|
||||
mod ucp;
|
||||
#[cfg(unix)]
|
||||
mod ulimit;
|
||||
mod umkdir;
|
||||
mod uniq;
|
||||
mod uniq_by;
|
||||
|
108
crates/nu-command/tests/commands/ulimit.rs
Normal file
108
crates/nu-command/tests/commands/ulimit.rs
Normal file
@ -0,0 +1,108 @@
|
||||
use nu_test_support::playground::Playground;
|
||||
use nu_test_support::{nu, pipeline};
|
||||
|
||||
#[test]
|
||||
fn limit_set_soft1() {
|
||||
Playground::setup("limit_set_soft1", |dirs, _sandbox| {
|
||||
let actual = nu!(
|
||||
cwd: dirs.test(), pipeline(
|
||||
"
|
||||
let soft = (ulimit -s | first | get soft | into string);
|
||||
ulimit -s -H $soft;
|
||||
let hard = (ulimit -s | first | get hard | into string);
|
||||
$soft == $hard
|
||||
"
|
||||
));
|
||||
|
||||
assert!(actual.out.contains("true"));
|
||||
});
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn limit_set_soft2() {
|
||||
Playground::setup("limit_set_soft2", |dirs, _sandbox| {
|
||||
let actual = nu!(
|
||||
cwd: dirs.test(), pipeline(
|
||||
"
|
||||
let soft = (ulimit -s | first | get soft | into string);
|
||||
ulimit -s -H soft;
|
||||
let hard = (ulimit -s | first | get hard | into string);
|
||||
$soft == $hard
|
||||
"
|
||||
));
|
||||
|
||||
assert!(actual.out.contains("true"));
|
||||
});
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn limit_set_hard1() {
|
||||
Playground::setup("limit_set_hard1", |dirs, _sandbox| {
|
||||
let actual = nu!(
|
||||
cwd: dirs.test(), pipeline(
|
||||
"
|
||||
let hard = (ulimit -s | first | get hard | into string);
|
||||
ulimit -s $hard;
|
||||
let soft = (ulimit -s | first | get soft | into string);
|
||||
$soft == $hard
|
||||
"
|
||||
));
|
||||
|
||||
assert!(actual.out.contains("true"));
|
||||
});
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn limit_set_hard2() {
|
||||
Playground::setup("limit_set_hard2", |dirs, _sandbox| {
|
||||
let actual = nu!(
|
||||
cwd: dirs.test(), pipeline(
|
||||
"
|
||||
let hard = (ulimit -s | first | get hard | into string);
|
||||
ulimit -s hard;
|
||||
let soft = (ulimit -s | first | get soft | into string);
|
||||
$soft == $hard
|
||||
"
|
||||
));
|
||||
|
||||
assert!(actual.out.contains("true"));
|
||||
});
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn limit_set_invalid1() {
|
||||
Playground::setup("limit_set_invalid1", |dirs, _sandbox| {
|
||||
let actual = nu!(
|
||||
cwd: dirs.test(), pipeline(
|
||||
"
|
||||
let hard = (ulimit -s | first | get hard);
|
||||
match $hard {
|
||||
\"unlimited\" => { echo \"unlimited\" },
|
||||
$x => {
|
||||
let new = ($x + 1 | into string);
|
||||
ulimit -s $new
|
||||
}
|
||||
}
|
||||
"
|
||||
));
|
||||
|
||||
assert!(
|
||||
actual.out.contains("unlimited")
|
||||
|| actual.err.contains("EPERM: Operation not permitted")
|
||||
);
|
||||
});
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn limit_set_invalid2() {
|
||||
Playground::setup("limit_set_invalid2", |dirs, _sandbox| {
|
||||
let actual = nu!(
|
||||
cwd: dirs.test(),
|
||||
"
|
||||
ulimit -c abcd
|
||||
"
|
||||
);
|
||||
|
||||
assert!(actual.err.contains("Can't convert to rlim_t."));
|
||||
});
|
||||
}
|
Loading…
Reference in New Issue
Block a user