refactor(php-shim): make the fs mutators return Result

mkdir, rmdir, unlink and symlink each had a bool version and a _result
twin returning the io::Error, which left two names for one call. Keep
only the Result form and let the callers that want a boolean spell out
.is_ok(). Call sites that discard the outcome, as their PHP originals
do, are unchanged.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

5 files changed, 12 insertions, 11 deletions

diff --git a/crates/shirabe/src/cache.rs b/crates/shirabe/src/cache.rs
index a9f56eac..14f7287f 100644
--- a/crates/shirabe/src/cache.rs
+++ b/crates/shirabe/src/cache.rs
@@ -106,7 +106,8 @@ impl Cache {
 
             if !self.read_only
                 && ((!is_dir(&self.root)
-                    && !Silencer::call(|| Ok(mkdir(&self.root, 0o777, true))).unwrap_or(false))
+                    && !Silencer::call(|| Ok(mkdir(&self.root, 0o777, true).is_ok()))
+                        .unwrap_or(false))
                     || !is_writable(&self.root))
             {
                 self.io.write_error(&format!(
diff --git a/crates/shirabe/src/console/application.rs b/crates/shirabe/src/console/application.rs
index bf1f3575..05cd1d22 100644
--- a/crates/shirabe/src/console/application.rs
+++ b/crates/shirabe/src/console/application.rs
@@ -2335,7 +2335,7 @@ impl ApplicationHandle {
                 );
                 if !(file_put_contents(&tempfile, file!().as_bytes()).is_some_and(|n| n > 0)
                     && file_get_contents(&tempfile).as_deref() == Some(file!())
-                    && unlink(&tempfile)
+                    && unlink(&tempfile).is_ok()
                     && !file_exists(&tempfile))
                 {
                     return Ok(Some(format!("<error>PHP temp directory ({}) does not exist or is not writable to Composer. Set sys_temp_dir in your php.ini</error>", sys_get_temp_dir())));
diff --git a/crates/shirabe/src/factory.rs b/crates/shirabe/src/factory.rs
index d7439d58..18ff8ef5 100644
--- a/crates/shirabe/src/factory.rs
+++ b/crates/shirabe/src/factory.rs
@@ -299,7 +299,7 @@ impl Factory {
                     if !is_dir(dir) {
                         let dir_owned = dir.clone();
                         let _ = Silencer::call(|| {
-                            Ok::<bool, anyhow::Error>(mkdir(&dir_owned, 0o777, true))
+                            Ok::<bool, anyhow::Error>(mkdir(&dir_owned, 0o777, true).is_ok())
                         });
                     }
                     let path = format!("{}/.htaccess", dir);
diff --git a/crates/shirabe/src/json/json_file.rs b/crates/shirabe/src/json/json_file.rs
index feb72764..4c74b83e 100644
--- a/crates/shirabe/src/json/json_file.rs
+++ b/crates/shirabe/src/json/json_file.rs
@@ -237,7 +237,7 @@ impl JsonFile {
                 .into());
             }
             // PHP: @mkdir($dir, 0777, true)
-            if !Silencer::call(|| Ok(mkdir(&dir, 0o777, true))).unwrap_or(false) {
+            if !Silencer::call(|| Ok(mkdir(&dir, 0o777, true).is_ok())).unwrap_or(false) {
                 return Err(UnexpectedValueException::new(format!(
                     "{} does not exist and could not be created.",
                     dir
diff --git a/crates/shirabe/src/util/filesystem.rs b/crates/shirabe/src/util/filesystem.rs
index 2c4cbcc6..925cb38a 100644
--- a/crates/shirabe/src/util/filesystem.rs
+++ b/crates/shirabe/src/util/filesystem.rs
@@ -240,7 +240,7 @@ impl Filesystem {
         }
 
         if is_link(directory) {
-            return Ok(Some(unlink(directory)));
+            return Ok(Some(unlink(directory).is_ok()));
         }
 
         if !is_dir(directory) || !file_exists(directory) {
@@ -328,7 +328,7 @@ impl Filesystem {
                 .into());
             }
 
-            if !mkdir(directory, 0o777, true) {
+            if mkdir(directory, 0o777, true).is_err() {
                 let e = RuntimeException::new(format!(
                     "{} does not exist and could not be created: {}",
                     directory,
@@ -393,12 +393,12 @@ impl Filesystem {
     /// Attempts to rmdir a file and in case of failure retries after 350ms on windows
     pub fn rmdir(&self, path: impl AsRef<Path>) -> anyhow::Result<bool> {
         let path = path.as_ref();
-        let mut deleted = rmdir(path);
+        let mut deleted = rmdir(path).is_ok();
         if !deleted {
             // retry after a bit on windows since it tends to be touchy with mass removals
             if Platform::is_windows() {
                 usleep(350000);
-                deleted = rmdir(path);
+                deleted = rmdir(path).is_ok();
             }
 
             if !deleted {
@@ -922,10 +922,10 @@ impl Filesystem {
     /// symbolic links on windows which link to directories need rmdir instead of unlink
     fn unlink_implementation(&self, path: &Path) -> bool {
         if Platform::is_windows() && is_dir(path) && is_link(path) {
-            return rmdir(path);
+            return rmdir(path).is_ok();
         }
 
-        unlink(path)
+        unlink(path).is_ok()
     }
 
     /// Creates a relative symlink from $link to $target
@@ -938,7 +938,7 @@ impl Filesystem {
 
         let relative_path = self.find_shortest_path(link, target, false, false);
         chdir(dirname(link));
-        let result = symlink(&relative_path, link);
+        let result = symlink(&relative_path, link).is_ok();
 
         chdir(&cwd);