<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `src/lib/command.rs`."><title>command.rs - source</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../static.files/rustdoc-c579a84d.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="cli" data-themes="" data-resource-suffix="" data-rustdoc-version="1.86.0-nightly (6067b3631 2025-01-17)" data-channel="nightly" data-search-js="search-ccb196c1.js" data-settings-js="settings-0f613d39.js" ><script src="../../static.files/storage-59e33391.js"></script><script defer src="../../static.files/src-script-56102188.js"></script><script defer src="../../src-files.js"></script><script defer src="../../static.files/main-5f194d8c.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-893ab5e7.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-6580c154.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-044be391.svg"></head><body class="rustdoc src"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="src-sidebar-title"><h2>Files</h2></div></nav><div class="sidebar-resizer"></div><main><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><h1><div class="sub-heading">cli/</div>command.rs</h1><rustdoc-toolbar></rustdoc-toolbar></div><div class="example-wrap"><div data-nosnippet><pre class="src-line-numbers">
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<a href="#324" id="324">324</a></pre></div><pre class="rust"><code><span class="doccomment">//! # command
//!
//! Runs task commands/scripts.
//!
</span><span class="attr">#[cfg(test)]
#[path = <span class="string">"command_test.rs"</span>]
</span><span class="kw">mod </span>command_test;
<span class="kw">use </span><span class="kw">crate</span>::error::CargoMakeError;
<span class="kw">use </span><span class="kw">crate</span>::logger;
<span class="kw">use </span><span class="kw">crate</span>::toolchain;
<span class="kw">use </span><span class="kw">crate</span>::types::{CommandSpec, Step, UnstableFeature};
<span class="kw">use </span>run_script::{IoOptions, ScriptError, ScriptOptions};
<span class="kw">use </span>std::io;
<span class="kw">use </span>std::io::{Error, ErrorKind, Read};
<span class="kw">use </span>std::process::{Command, ExitStatus, Output, Stdio};
<span class="kw">use </span>std::sync::atomic::{AtomicU32, Ordering};
<span class="kw">use </span>std::sync::Once;
<span class="doccomment">/// Returns the exit code (-1 if no exit code found)
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>get_exit_code(exit_status: <span class="prelude-ty">Result</span><ExitStatus, Error>, force: bool) -> i32 {
<span class="kw">match </span>exit_status {
<span class="prelude-val">Ok</span>(code) => {
<span class="kw">if </span>!code.success() {
<span class="kw">match </span>code.code() {
<span class="prelude-val">Some</span>(value) => value,
<span class="prelude-val">None </span>=> -<span class="number">1</span>,
}
} <span class="kw">else </span>{
<span class="number">0
</span>}
}
<span class="prelude-val">Err</span>(error) => {
<span class="kw">if </span>!force {
<span class="macro">error!</span>(<span class="string">"Error while executing command, error: {:#?}"</span>, error);
}
-<span class="number">1
</span>}
}
}
<span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>get_exit_code_from_output(output: <span class="kw-2">&</span>io::Result<Output>, force: bool) -> i32 {
<span class="kw">match </span>output {
<span class="kw-2">&</span><span class="prelude-val">Ok</span>(<span class="kw-2">ref </span>output_struct) => get_exit_code(<span class="prelude-val">Ok</span>(output_struct.status), force),
<span class="kw-2">&</span><span class="prelude-val">Err</span>(<span class="kw-2">ref </span>error) => {
<span class="kw">if </span>!force {
<span class="macro">error!</span>(<span class="string">"Error while executing command, error: {:#?}"</span>, error);
}
-<span class="number">1
</span>}
}
}
<span class="doccomment">/// Validates the exit code and if not 0 or unable to validate it, err
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>validate_exit_code(code: i32) -> <span class="prelude-ty">Result</span><(), CargoMakeError> {
<span class="kw">if </span>code == -<span class="number">1 </span>{
<span class="prelude-val">Err</span>(CargoMakeError::ExitCodeValidation)
} <span class="kw">else if </span>code != <span class="number">0 </span>{
<span class="prelude-val">Err</span>(CargoMakeError::ExitCodeError(code))
} <span class="kw">else </span>{
<span class="prelude-val">Ok</span>(())
}
}
<span class="kw">fn </span>is_silent() -> bool {
<span class="kw">let </span>log_level = logger::get_log_level();
is_silent_for_level(log_level)
}
<span class="kw">fn </span>is_silent_for_level(log_level: String) -> bool {
<span class="kw">let </span>level = logger::get_level(<span class="kw-2">&</span>log_level);
<span class="kw">match </span>level {
logger::LogLevel::ERROR => <span class="bool-val">true</span>,
logger::LogLevel::OFF => <span class="bool-val">true</span>,
<span class="kw">_ </span>=> <span class="bool-val">false</span>,
}
}
<span class="kw">fn </span>should_print_commands_by_default() -> bool {
<span class="kw">let </span>log_level = logger::get_log_level();
<span class="kw">let </span>level = logger::get_level(<span class="kw-2">&</span>log_level);
<span class="kw">match </span>level {
logger::LogLevel::OFF => <span class="bool-val">false</span>,
<span class="kw">_ </span>=> {
<span class="kw">if </span>should_print_commands_for_level(log_level) {
<span class="bool-val">true
</span>} <span class="kw">else </span>{
<span class="comment">// if log level defaults to not printing the script commands
// we also check if we are running in a CI env.
// Users will not see the commands while CI builds will have the commands printed out.
</span>envmnt::is(<span class="string">"CARGO_MAKE_CI"</span>)
}
}
}
}
<span class="kw">fn </span>should_print_commands_for_level(log_level: String) -> bool {
<span class="kw">let </span>level = logger::get_level(<span class="kw-2">&</span>log_level);
<span class="kw">match </span>level {
logger::LogLevel::VERBOSE => <span class="bool-val">true</span>,
<span class="kw">_ </span>=> <span class="bool-val">false</span>,
}
}
<span class="doccomment">/// Runs the requested script text and returns its output.
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>run_script_get_output(
script_lines: <span class="kw-2">&</span>Vec<String>,
script_runner: <span class="prelude-ty">Option</span><String>,
cli_arguments: <span class="kw-2">&</span>Vec<String>,
capture_output: bool,
print_commands: <span class="prelude-ty">Option</span><bool>,
) -> <span class="prelude-ty">Result</span><(i32, String, String), ScriptError> {
<span class="kw">let </span>silent = is_silent();
<span class="kw">let </span><span class="kw-2">mut </span>options = ScriptOptions::new();
options.runner = script_runner.clone();
options.output_redirection = <span class="kw">if </span>silent {
IoOptions::Null
} <span class="kw">else if </span>capture_output {
IoOptions::Pipe
} <span class="kw">else </span>{
IoOptions::Inherit
};
options.exit_on_error = <span class="bool-val">true</span>;
options.print_commands = <span class="kw">match </span>print_commands {
<span class="prelude-val">Some</span>(bool_value) => bool_value,
<span class="prelude-val">None </span>=> should_print_commands_by_default(),
};
<span class="kw">if </span>is_silent() {
options.output_redirection = IoOptions::Pipe;
options.print_commands = <span class="bool-val">false</span>;
} <span class="kw">else if </span>!capture_output && envmnt::is(<span class="string">"CARGO_MAKE_SCRIPT_FORCE_PIPE_STDIN"</span>) {
options.input_redirection = IoOptions::Pipe;
}
run_script::run(script_lines.join(<span class="string">"\n"</span>).as_str(), cli_arguments, <span class="kw-2">&</span>options)
}
<span class="doccomment">/// Runs the requested script text and panics in case of any script error.
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>run_script_get_exit_code(
script_lines: <span class="kw-2">&</span>Vec<String>,
script_runner: <span class="prelude-ty">Option</span><String>,
cli_arguments: <span class="kw-2">&</span>Vec<String>,
validate: bool,
) -> <span class="prelude-ty">Result</span><i32, CargoMakeError> {
<span class="kw">let </span>output = run_script_get_output(<span class="kw-2">&</span>script_lines, script_runner, cli_arguments, <span class="bool-val">false</span>, <span class="prelude-val">None</span>);
<span class="kw">let </span>exit_code = <span class="kw">match </span>output {
<span class="prelude-val">Ok</span>(output_struct) => output_struct.<span class="number">0</span>,
<span class="kw">_ </span>=> -<span class="number">1</span>,
};
<span class="kw">if </span>validate {
validate_exit_code(exit_code)<span class="question-mark">?</span>;
}
<span class="prelude-val">Ok</span>(exit_code)
}
<span class="doccomment">/// Runs the requested command and return its output.
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>run_command_get_output(
command_string: <span class="kw-2">&</span>str,
args: <span class="kw-2">&</span><span class="prelude-ty">Option</span><Vec<String>>,
capture_output: bool,
) -> io::Result<Output> {
<span class="kw">let </span>ctrl_c_handling = UnstableFeature::CtrlCHandling.is_env_set();
<span class="kw">let </span>silent = is_silent();
<span class="macro">debug!</span>(<span class="string">"Execute Command: {}"</span>, <span class="kw-2">&</span>command_string);
<span class="kw">let </span><span class="kw-2">mut </span>command = Command::new(<span class="kw-2">&</span>command_string);
<span class="kw">match </span><span class="kw-2">*</span>args {
<span class="prelude-val">Some</span>(<span class="kw-2">ref </span>args_vec) => {
command.args(args_vec);
}
<span class="prelude-val">None </span>=> <span class="macro">debug!</span>(<span class="string">"No command args defined."</span>),
};
command.stdin(Stdio::inherit());
<span class="kw">if </span>silent {
command.stdout(Stdio::null()).stderr(Stdio::null());
} <span class="kw">else if </span>ctrl_c_handling {
<span class="kw">if </span>capture_output {
command.stdout(Stdio::piped()).stderr(Stdio::piped());
}
} <span class="kw">else if </span>!capture_output {
command.stdout(Stdio::inherit()).stderr(Stdio::inherit());
}
<span class="macro">info!</span>(<span class="string">"Execute Command: {:?}"</span>, <span class="kw-2">&</span>command);
<span class="kw">let </span>output = <span class="kw">if </span>ctrl_c_handling {
spawn_command(command)
} <span class="kw">else </span>{
command.output()
};
<span class="macro">debug!</span>(<span class="string">"Output: {:#?}"</span>, <span class="kw-2">&</span>output);
output
}
<span class="kw">fn </span>spawn_command(<span class="kw-2">mut </span>command: Command) -> io::Result<Output> {
<span class="kw">static </span>CTRL_C_COUNT: AtomicU32 = AtomicU32::new(<span class="number">0</span>);
<span class="kw">static </span>SET_CTRL_C_HANDLER_ONCE: Once = Once::new();
SET_CTRL_C_HANDLER_ONCE.call_once(|| {
ctrlc::set_handler(|| {
<span class="kw">if </span>CTRL_C_COUNT.fetch_add(<span class="number">1</span>, Ordering::SeqCst) == <span class="number">0 </span>{
<span class="macro">info!</span>(<span class="string">"Shutting down..."</span>);
}
})
.expect(<span class="string">"Failed to set Ctrl+C handler."</span>);
});
<span class="kw">if </span>CTRL_C_COUNT.load(Ordering::Relaxed) != <span class="number">0 </span>{
<span class="prelude-val">Err</span>(Error::new(
ErrorKind::Other,
<span class="string">"Shutting down - cannot run the command."</span>,
))<span class="question-mark">?</span>;
}
<span class="kw">let </span><span class="kw-2">mut </span>process = command.spawn()<span class="question-mark">?</span>;
<span class="kw">let </span>process_stdout = process.stdout.take();
<span class="kw">let </span>process_stderr = process.stderr.take();
<span class="kw">let </span><span class="kw-2">mut </span>killing_process = <span class="bool-val">false</span>;
<span class="prelude-val">Ok</span>(<span class="kw">loop </span>{
<span class="kw">if </span>!killing_process && CTRL_C_COUNT.load(Ordering::Relaxed) >= <span class="number">2 </span>{
process.kill()<span class="question-mark">?</span>;
killing_process = <span class="bool-val">true</span>;
}
<span class="kw">if let </span><span class="prelude-val">Some</span>(status) = process.try_wait()<span class="question-mark">? </span>{
<span class="kw">let </span><span class="kw-2">mut </span>stdout = Vec::new();
<span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">mut </span>process_stdout) = process_stdout {
process_stdout.read_to_end(<span class="kw-2">&mut </span>stdout)<span class="question-mark">?</span>;
}
<span class="kw">let </span><span class="kw-2">mut </span>stderr = Vec::new();
<span class="kw">if let </span><span class="prelude-val">Some</span>(<span class="kw-2">mut </span>process_stderr) = process_stderr {
process_stderr.read_to_end(<span class="kw-2">&mut </span>stderr)<span class="question-mark">?</span>;
}
<span class="kw">break </span>Output {
status,
stdout,
stderr,
};
} <span class="kw">else </span>{
std::thread::sleep(std::time::Duration::from_millis(<span class="number">10</span>));
}
})
}
<span class="doccomment">/// Runs the requested command and panics in case of any error.
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>run_command(
command_string: <span class="kw-2">&</span>str,
args: <span class="kw-2">&</span><span class="prelude-ty">Option</span><Vec<String>>,
validate: bool,
) -> <span class="prelude-ty">Result</span><i32, CargoMakeError> {
<span class="kw">let </span>output = run_command_get_output(<span class="kw-2">&</span>command_string, <span class="kw-2">&</span>args, <span class="bool-val">false</span>);
<span class="kw">let </span>exit_code = get_exit_code_from_output(<span class="kw-2">&</span>output, !validate);
<span class="kw">if </span>validate {
validate_exit_code(exit_code)<span class="question-mark">?</span>;
}
<span class="prelude-val">Ok</span>(exit_code)
}
<span class="doccomment">/// Runs the requested command and returns the stdout if exit code is valid.
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>run_command_get_output_string(
command_string: <span class="kw-2">&</span>str,
args: <span class="kw-2">&</span><span class="prelude-ty">Option</span><Vec<String>>,
) -> <span class="prelude-ty">Option</span><String> {
<span class="kw">let </span>output = run_command_get_output(<span class="kw-2">&</span>command_string, <span class="kw-2">&</span>args, <span class="bool-val">true</span>);
<span class="kw">let </span>exit_code = get_exit_code_from_output(<span class="kw-2">&</span>output, <span class="bool-val">true</span>);
<span class="kw">if </span>exit_code == <span class="number">0 </span>{
<span class="kw">match </span>output {
<span class="prelude-val">Ok</span>(output_struct) => {
<span class="kw">let </span>stdout = String::from_utf8_lossy(<span class="kw-2">&</span>output_struct.stdout).into_owned();
<span class="prelude-val">Some</span>(stdout)
}
<span class="prelude-val">Err</span>(<span class="kw">_</span>) => <span class="prelude-val">None</span>,
}
} <span class="kw">else </span>{
<span class="prelude-val">None
</span>}
}
<span class="doccomment">/// Runs the given task command.
</span><span class="kw">pub</span>(<span class="kw">crate</span>) <span class="kw">fn </span>run(step: <span class="kw-2">&</span>Step) -> <span class="prelude-ty">Result</span><(), CargoMakeError> {
<span class="kw">let </span>validate = !step.config.should_ignore_errors();
<span class="kw">match </span>step.config.command {
<span class="prelude-val">Some</span>(<span class="kw-2">ref </span>command_string) => {
<span class="kw">let </span>command_spec = <span class="kw">match </span>step.config.toolchain {
<span class="prelude-val">Some</span>(<span class="kw-2">ref </span>toolchain) => {
toolchain::wrap_command(<span class="kw-2">&</span>toolchain, <span class="kw-2">&</span>command_string, <span class="kw-2">&</span>step.config.args)
}
<span class="prelude-val">None </span>=> CommandSpec {
command: command_string.to_string(),
args: step.config.args.clone(),
},
};
run_command(<span class="kw-2">&</span>command_spec.command, <span class="kw-2">&</span>command_spec.args, validate)<span class="question-mark">?</span>;
}
<span class="prelude-val">None </span>=> <span class="macro">debug!</span>(<span class="string">"No command defined."</span>),
};
<span class="prelude-val">Ok</span>(())
}
</code></pre></div></section></main></body></html>