diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..f26eafc
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,10 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+      rust
+
+    ]
+}
diff --git a/foo b/foo
new file mode 100644
index 0000000..a51b2a6
--- /dev/null
+++ b/foo
@@ -0,0 +1 @@
+sadasdas
diff --git a/src/main.rs b/src/main.rs
index 46d98b0..b1dd2af 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,10 +1,7 @@
 use std::process::Command;
 
 fn run_command(cmd: &str, args: &[&str]) -> Result<String, String> {
-    let output = match Command::new(cmd)
-        .args(args)
-        .output()
-    {
+    let output = match Command::new(cmd).args(args).output() {
         Ok(o) => o,
         Err(e) => return Err(format!("Failed to execute process: {}", e)),
     };
@@ -19,9 +16,28 @@ fn run_command(cmd: &str, args: &[&str]) -> Result<String, String> {
 }
 
 fn main() {
-    let result = run_command("git", &["diff", "--staged"]);
-    match result {
-        Ok(output) => println!("{}", output),
-        Err(error) => eprintln!("{}", error),
+    let output = run_command("git", &["diff", "--staged"]).unwrap();
+    let file_diffs = split_string_with_pattern(&output, "diff --git ");
+    println!("{:?}", file_diffs);
+}
+
+fn split_string_with_pattern<'a>(string: &'a str, pattern: &'a str) -> Vec<&'a str> {
+    let mut start = dbg!(pattern.len());
+    let mut substrings = Vec::new();
+
+    while let Some(i) = string[start..].find(pattern) {
+        substrings.push(&string[start..start + i]);
+        start += i;
     }
+    substrings.push(&string[start..]);
+
+    substrings
+}
+
+#[test]
+fn test_split_string_with_pattern() {
+    let string = include_str!("../test_data/diff.txt");
+    let pattern = "diff --git ";
+    println!("testing");
+    assert!(split_string_with_pattern(string, pattern).len() == 2);
 }