🔒 fix potential argument injection in git commands

src/git_ops/mod.rs

@@ -389,7 +389,7 @@ impl GitOperations for GitOpsManager {
 
             // And removed from index
             let _ = std::process::Command::new("git")
-                .args(["rm", "--cached", "-r", "--ignore-unmatch"])
+                .args(["rm", "--cached", "-r", "--ignore-unmatch", "--"])
                 .arg(&opts.path)
                 .current_dir(workdir)
                 .output();
@@ -525,7 +525,8 @@ impl GitOperations for GitOpsManager {
         .or_else(|_| {
             // CLI fallback: use git read-tree to apply sparse checkout
             let output = std::process::Command::new("git")
-                .args(["-C", path, "read-tree", "-mu", "HEAD"])
+                .current_dir(path)
+                .args(["read-tree", "-mu", "HEAD"])
                 .output()
                 .context("Failed to run git read-tree")?;
             if output.status.success() {

tests/security_tests.rs

@@ -0,0 +1,89 @@
+// SPDX-FileCopyrightText: 2025 Adam Poulemanos <[email protected]>
+//
+// SPDX-License-Identifier: LicenseRef-PlainMIT OR MIT
+
+//! Security tests to ensure robustness against various attack vectors.
+
+mod common;
+use common::TestHarness;
+use std::fs;
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_path_with_hyphen_injection() {
+        let harness = TestHarness::new().expect("Failed to create test harness");
+        harness.init_git_repo().expect("Failed to init git repo");
+
+        let remote_repo = harness
+            .create_test_remote("hyphen-remote")
+            .expect("Failed to create remote");
+        let remote_url = format!("file://{}", remote_repo.display());
+
+        // A path starting with a hyphen that could be a git flag
+        let malicious_path = "-c";
+
+        // This should not fail with "unknown option" or similar error from git -C
+        // It might still fail for other reasons if the path is invalid for a submodule,
+        // but it shouldn't be interpreted as a flag to the 'git' command itself.
+
+        // Note: Using add_submodule via harness.
+        // We need to make sure the directory doesn't exist or is handled.
+
+        let result = harness.run_submod(&[
+            "add",
+            &remote_url,
+            "--name",
+            "hyphen-sub",
+            "--path",
+            malicious_path,
+        ]);
+
+        // The operation might fail because "-c" is a weird path, but it shouldn't be a Command Injection.
+        // If it was interpreted as `git -C -c`, it would fail with "unknown option: -c" or similar.
+
+        match result {
+            Ok(output) => {
+                let stderr = String::from_utf8_lossy(&output.stderr);
+                assert!(!stderr.contains("unknown option: -c"), "Potential command injection detected: git interpreted path as a flag");
+            },
+            Err(e) => {
+                let err_msg = e.to_string();
+                assert!(!err_msg.contains("unknown option: -c"), "Potential command injection detected: git interpreted path as a flag");
+            }
+        }
+    }
+
+    #[test]
+    fn test_sparse_checkout_with_hyphen_path() {
+        let harness = TestHarness::new().expect("Failed to create test harness");
+        harness.init_git_repo().expect("Failed to init git repo");
+
+        let remote_repo = harness
+            .create_complex_remote("sparse-hyphen")
+            .expect("Failed to create remote");
+        let remote_url = format!("file://{}", remote_repo.display());
+
+        // Path starting with hyphen
+        let path = "./-sparse";
+
+        // Ensure the directory exists to trigger the CLI fallback in apply_sparse_checkout if needed,
+        // although apply_sparse_checkout is usually called after gix/git2 which might fail or be bypassed.
+
+        harness.run_submod_success(&[
+            "add",
+            &remote_url,
+            "--name",
+            "sparse-hyphen",
+            "--path",
+            path,
+            "--sparse-paths",
+            "src",
+        ]).expect("Failed to add submodule with hyphenated path");
+
+        // Verify it worked
+        assert!(harness.dir_exists("-sparse/src"));
+    }
+}