feat(finder): port Symfony Finder SplFileInfo

Implement the SplFileInfo accessors (pathname/path/filename/basename/extension,
relative path/pathname, is_dir/is_file/is_link, real_path, size) over std and
existing php-shim functions. Extend new() to take relativePath/relativePathname
as in Symfony's constructor (no existing callers).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

1 files changed, 36 insertions, 16 deletions

diff --git a/crates/shirabe-external-packages/src/symfony/finder/spl_file_info.rs b/crates/shirabe-external-packages/src/symfony/finder/spl_file_info.rs
index 3ab824f..c1d158d 100644
--- a/crates/shirabe-external-packages/src/symfony/finder/spl_file_info.rs
+++ b/crates/shirabe-external-packages/src/symfony/finder/spl_file_info.rs
@@ -1,7 +1,12 @@
 //! ref: composer/vendor/symfony/finder/SplFileInfo.php
 
 #[derive(Debug)]
-pub struct SplFileInfo;
+pub struct SplFileInfo {
+    // The path passed to the underlying \SplFileInfo constructor.
+    pathname: String,
+    relative_path: String,
+    relative_pathname: String,
+}
 
 impl std::fmt::Display for SplFileInfo {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
@@ -10,55 +15,70 @@ impl std::fmt::Display for SplFileInfo {
 }
 
 impl SplFileInfo {
-    pub fn new(_path: &str) -> Self {
-        todo!()
+    pub fn new(file: &str, relative_path: &str, relative_pathname: &str) -> Self {
+        Self {
+            pathname: file.to_string(),
+            relative_path: relative_path.to_string(),
+            relative_pathname: relative_pathname.to_string(),
+        }
     }
 
     pub fn get_pathname(&self) -> String {
-        todo!()
+        self.pathname.clone()
     }
 
     pub fn get_path(&self) -> String {
-        todo!()
+        shirabe_php_shim::dirname(&self.pathname)
     }
 
     pub fn get_filename(&self) -> String {
-        todo!()
+        shirabe_php_shim::basename(&self.pathname)
     }
 
-    pub fn get_basename(&self, _suffix: Option<&str>) -> String {
-        todo!()
+    pub fn get_basename(&self, suffix: Option<&str>) -> String {
+        match suffix {
+            Some(suffix) => shirabe_php_shim::basename_with_suffix(&self.pathname, suffix),
+            None => shirabe_php_shim::basename(&self.pathname),
+        }
     }
 
     pub fn get_extension(&self) -> String {
-        todo!()
+        // \SplFileInfo::getExtension() returns the extension (without the dot), or "" if none.
+        let base = shirabe_php_shim::basename(&self.pathname);
+        match base.rfind('.') {
+            Some(index) => base[index + 1..].to_string(),
+            None => String::new(),
+        }
     }
 
     pub fn get_relative_path_name(&self) -> String {
-        todo!()
+        self.relative_pathname.clone()
     }
 
     pub fn get_relative_path(&self) -> String {
-        todo!()
+        self.relative_path.clone()
     }
 
     pub fn is_dir(&self) -> bool {
-        todo!()
+        shirabe_php_shim::is_dir(&self.pathname)
     }
 
     pub fn is_file(&self) -> bool {
-        todo!()
+        shirabe_php_shim::is_file(&self.pathname)
     }
 
     pub fn is_link(&self) -> bool {
-        todo!()
+        shirabe_php_shim::is_link(&self.pathname)
     }
 
     pub fn get_real_path(&self) -> Option<String> {
-        todo!()
+        // \SplFileInfo::getRealPath() returns the canonicalized absolute path, or false on failure.
+        shirabe_php_shim::realpath(&self.pathname)
     }
 
     pub fn get_size(&self) -> i64 {
-        todo!()
+        // \SplFileInfo::getSize() returns the file size in bytes (throws on failure).
+        // TODO(phase-d): PHP throws a \RuntimeException on stat failure; this returns 0 instead.
+        shirabe_php_shim::filesize(&self.pathname).unwrap_or(0)
     }
 }