dont write cover if it is already saved

1 files changed, 6 insertions, 4 deletions

diff --git a/import/src/main.rs b/import/src/main.rs
index 3bbd3a2..febdbe9 100644
--- a/import/src/main.rs
+++ b/import/src/main.rs
@@ -23,7 +23,7 @@ use rand::random;
 use std::{
     collections::BTreeMap,
     fs::{remove_file, File},
-    io::{stdin, Write},
+    io::{stdin, BufReader, Write},
     path::PathBuf,
     process::exit,
 };
@@ -204,7 +204,7 @@ fn main() -> anyhow::Result<()> {
 
             if let Some(input_path) = &input {
                 file_meta = Some({
-                    let input = File::open(&input_path).unwrap();
+                    let input = BufReader::new(File::open(&input_path).unwrap());
                     let mut input = EbmlReader::new(input);
                     import_metadata(&mut input)?
                 });
@@ -266,8 +266,10 @@ fn main() -> anyhow::Result<()> {
                                         }
                                     }
                                 ));
-                                let mut f = File::create(&pu)?;
-                                f.write_all(&data)?;
+                                if !pu.exists() {
+                                    let mut f = File::create(&pu)?;
+                                    f.write_all(&data)?;
+                                }
                                 Ok::<_, anyhow::Error>(pu)
                             })
                             .transpose()