From 4009e0a347553d809020f9eb806f0ac8712f2c3f Mon Sep 17 00:00:00 2001
From: Brennan Kinney <5098581+polarathene@users.noreply.github.com>
Date: Fri, 15 Aug 2025 20:48:33 +1200
Subject: [PATCH 1/2] chore: `file.rs` - Remove `add_dummy_extension()` helper

This helper method is redundant, there is a much simpler approach to append the extension.
---
 src/file/source/file.rs | 22 ++++------------------
 1 file changed, 4 insertions(+), 18 deletions(-)

diff --git a/src/file/source/file.rs b/src/file/source/file.rs
index bf30c119..918080b3 100644
--- a/src/file/source/file.rs
+++ b/src/file/source/file.rs
@@ -59,9 +59,10 @@ impl FileSourceFile {
                 )))
             };
         }
-        // Adding a dummy extension will make sure we will not override secondary extensions, i.e. "file.local"
-        // This will make the following set_extension function calls to append the extension.
-        let mut filename = add_dummy_extension(filename);
+
+        // Append an extension that will be replaced when calling `set_extension()`:
+        let mut filename = filename;
+        filename.as_mut_os_string().push(".ext_placeholder");
 
         match format_hint {
             Some(format) => {
@@ -134,18 +135,3 @@ where
         })
     }
 }
-
-fn add_dummy_extension(mut filename: PathBuf) -> PathBuf {
-    match filename.extension() {
-        Some(extension) => {
-            let mut ext = extension.to_os_string();
-            ext.push(".");
-            ext.push("dummy");
-            filename.set_extension(ext);
-        }
-        None => {
-            filename.set_extension("dummy");
-        }
-    }
-    filename
-}

From 353747a91256f648dcc09c62e18e0f3afc58f07c Mon Sep 17 00:00:00 2001
From: Brennan Kinney <5098581+polarathene@users.noreply.github.com>
Date: Wed, 20 Aug 2025 14:37:39 +1200
Subject: [PATCH 2/2] Update src/file/source/file.rs

---
 src/file/source/file.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/file/source/file.rs b/src/file/source/file.rs
index 918080b3..430df98b 100644
--- a/src/file/source/file.rs
+++ b/src/file/source/file.rs
@@ -60,9 +60,12 @@ impl FileSourceFile {
             };
         }
 
-        // Append an extension that will be replaced when calling `set_extension()`:
         let mut filename = filename;
-        filename.as_mut_os_string().push(".ext_placeholder");
+        // Preserve any extension-like text within the provided file stem by appending a fake extension 
+        // which will be replaced by `set_extension()` calls (e.g.  `file.local.placeholder` => `file.local.json`)
+        if filename.extension().is_some() {
+          filename.as_mut_os_string().push(".placeholder");
+        }
 
         match format_hint {
             Some(format) => {