src/commit.rs: add delete_commit function

src/commit.rs

@@ -37,12 +37,33 @@ pub fn get_current_commit() -> String {
     commit
 }
 
+
+/// function that deletes commit if needed
+pub fn delete_commit(commit: &str, borg_path: &PathBuf) {
+    let output = Command::new("borg")
+        .arg("delete")
+        .arg(format!("{}::{}", borg_path.to_str().unwrap(), commit))
+        .output()
+        .unwrap();
+    match output.status.code().unwrap() {
+        0 => (),
+        num => {
+            eprintln!("{}", String::from_utf8(output.stderr).unwrap());
+            exit(num);
+        }
+    }
+}
+
+
 /// Create a commit of the results folder named as the current git commit id
-pub fn commit(compression: String, mut commit: String) {
+pub fn commit(compression: String, mut commit: String, update: bool) {
     let (borg_folder, results_folder) = check_path();
     if commit == String::from("") {
         commit = get_current_commit();
     }
+    if update {
+        delete_commit(&commit, &borg_folder);
+    }
     let output = Command::new("borg")
         .arg("create")
         .arg("--stats")