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//! ref: composer/vendor/symfony/process/ExecutableFinder.php
use shirabe_php_shim::{self as php, PhpMixed};
const CMD_BUILTINS: &[&str] = &[
"assoc", "break", "call", "cd", "chdir", "cls", "color", "copy", "date", "del", "dir", "echo",
"endlocal", "erase", "exit", "for", "ftype", "goto", "help", "if", "label", "md", "mkdir",
"mklink", "move", "path", "pause", "popd", "prompt", "pushd", "rd", "rem", "ren", "rename",
"rmdir", "set", "setlocal", "shift", "start", "time", "title", "type", "ver", "vol",
];
#[derive(Debug)]
pub struct ExecutableFinder {
suffixes: Vec<String>,
}
impl Default for ExecutableFinder {
fn default() -> Self {
Self::new()
}
}
impl ExecutableFinder {
pub fn new() -> Self {
Self { suffixes: vec![] }
}
/// Replaces default suffixes of executable.
pub fn set_suffixes(&mut self, suffixes: Vec<String>) {
self.suffixes = suffixes;
}
/// Adds new possible suffix to check for executable.
pub fn add_suffix(&mut self, suffix: &str) {
self.suffixes.push(suffix.to_string());
}
pub fn find(&self, name: &str, default: Option<&str>, extra_dirs: &[String]) -> Option<String> {
// windows built-in commands that are present in cmd.exe should not be resolved using PATH as they do not exist as exes
if php::DIRECTORY_SEPARATOR == "\\"
&& CMD_BUILTINS.contains(&php::strtolower(name).as_str())
{
return Some(name.to_string());
}
let path = php::getenv("PATH")
.or_else(|| php::getenv("Path"))
.map(|v| v.to_string_lossy().into_owned())
.unwrap_or_default();
let mut dirs = php::explode(php::PATH_SEPARATOR, &path);
dirs.extend_from_slice(extra_dirs);
let mut suffixes: Vec<String> = vec![];
if php::DIRECTORY_SEPARATOR == "\\" {
let path_ext = php::getenv("PATHEXT").map(|v| v.to_string_lossy().into_owned());
suffixes = self.suffixes.clone();
let exts = match path_ext {
Some(ref ext) if !ext.is_empty() => php::explode(php::PATH_SEPARATOR, ext),
_ => vec![
".exe".to_string(),
".bat".to_string(),
".cmd".to_string(),
".com".to_string(),
],
};
suffixes.extend(exts);
}
suffixes = if !php::pathinfo(PhpMixed::String(name.to_string()), php::PATHINFO_EXTENSION)
.as_string()
.unwrap_or("")
.is_empty()
{
let mut s = vec![String::new()];
s.extend(suffixes);
s
} else {
suffixes.push(String::new());
suffixes
};
for suffix in &suffixes {
for dir in &dirs {
let dir = if dir.is_empty() { "." } else { dir.as_str() };
let file = format!("{dir}{}{name}{suffix}", php::DIRECTORY_SEPARATOR);
if php::is_file(&file)
&& (php::DIRECTORY_SEPARATOR == "\\" || php::is_executable(&file))
{
return Some(file);
}
if !php::is_dir(dir)
&& php::basename(dir) == format!("{name}{suffix}")
&& php::is_executable(dir)
{
return Some(dir.to_string());
}
}
}
if php::DIRECTORY_SEPARATOR == "\\"
|| name.len() != php::strcspn(name, &format!("/{}", php::DIRECTORY_SEPARATOR))
{
return default.map(ToString::to_string);
}
let exec_result = php::exec(
&format!("command -v -- {}", php::escapeshellarg(name)),
None,
None,
)
.unwrap_or_default();
let executable_path = php::substr(
&exec_result,
0,
php::strpos(&exec_result, php::PHP_EOL).map(|i| i as i64),
);
if !executable_path.is_empty() && php::is_executable(&executable_path) {
return Some(executable_path);
}
default.map(ToString::to_string)
}
}
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