1 files changed, 46 insertions, 3 deletions
diff --git a/crates/shirabe-external-packages/src/symfony/process/php_executable_finder.rs b/crates/shirabe-external-packages/src/symfony/process/php_executable_finder.rs
index 65eae30..9d04c5e 100644
--- a/crates/shirabe-external-packages/src/symfony/process/php_executable_finder.rs
+++ b/crates/shirabe-external-packages/src/symfony/process/php_executable_finder.rs
@@ -1,7 +1,12 @@
 //! ref: composer/vendor/symfony/process/PhpExecutableFinder.php
 
+use super::executable_finder::ExecutableFinder;
+use shirabe_php_shim::{self as php};
+
 #[derive(Debug)]
-pub struct PhpExecutableFinder;
+pub struct PhpExecutableFinder {
+    executable_finder: ExecutableFinder,
+}
 
 impl Default for PhpExecutableFinder {
     fn default() -> Self {
@@ -11,14 +16,52 @@ impl Default for PhpExecutableFinder {
 
 impl PhpExecutableFinder {
     pub fn new() -> Self {
-        todo!()
+        Self {
+            executable_finder: ExecutableFinder::new(),
+        }
     }
 
-    pub fn find(&self, _include_args: bool) -> Option<String> {
+    /// Finds The PHP executable.
+    pub fn find(&self, include_args: bool) -> Option<String> {
+        if let Some(php) = php::getenv("PHP_BINARY").filter(|v| !v.is_empty()) {
+            let mut php = php.to_string_lossy().into_owned();
+            if !php::is_executable(&php) {
+                match self.executable_finder.find(&php, None, &[]) {
+                    Some(found) => php = found,
+                    None => return None,
+                }
+            }
+
+            if php::is_dir(&php) {
+                return None;
+            }
+
+            return Some(php);
+        }
+
+        let args = self.find_arguments();
+        let _args = if include_args && !args.is_empty() {
+            format!(" {}", args.join(" "))
+        } else {
+            String::new()
+        };
+
+        // PHP_BINARY return the current sapi executable
+        //
+        // Everything from here on depends on runtime constants describing the *running* PHP
+        // interpreter (\PHP_BINARY truthiness, \PHP_SAPI, \PHP_BINDIR). The shim does not model a
+        // current PHP runtime, so the remaining fallbacks (the \PHP_SAPI sapi check, \PHP_PATH,
+        // \PHP_PEAR_PHP_BIN, \PHP_BINDIR probing and the final php lookup seeded with \PHP_BINDIR)
+        // cannot be ported faithfully here.
+        // TODO(php-runtime): port once the shim exposes \PHP_SAPI and \PHP_BINDIR.
         todo!()
     }
 
+    /// Finds the PHP executable arguments.
     pub fn find_arguments(&self) -> Vec<String> {
+        let _arguments: Vec<String> = vec![];
+        // TODO(php-runtime): \PHP_SAPI is the SAPI name of the running PHP interpreter; the shim
+        // does not model a current PHP runtime, so the 'phpdbg' check cannot be ported faithfully.
         todo!()
     }
 }