src/create_hooks.rs: update .git/config to create a new alias if hooks are used

src/create_hooks.rs

@@ -43,6 +43,7 @@ fn get_hooks_folder() -> PathBuf {
     p
 }
 
+
 /// Function used to create a file
 ///
 /// # Arguments:
@@ -83,6 +84,25 @@ fn create_file(folder: &PathBuf, file_name: &str, content: &str) {
     });
 }
 
+
+/// Add a gblkco alias in `.git/config` file at the end to ensure a quiet
+/// Checkout and a quiet cancel of this checkout
+fn update_config_file() {
+    let git_hooks = get_hooks_folder();
+    let mut git_config = git_hooks.parent().unwrap().to_path_buf();
+    git_config.push("config");
+    if !git_config.is_file() {
+        eprintln!("Error: The file .git/config wasn't found");
+        exit(19);
+    }
+    let mut file = OpenOptions::new()
+        .write(true)
+        .append(true)
+        .open(&git_config)
+        .unwrap();
+    writeln!(file, "[alias]\n\tgblkco = checkout -q").unwrap();
+}
+
 /// Create 2 files in `.git/hooks` folder
 ///
 /// 1. Create post-commit hook
@@ -92,6 +112,7 @@ fn create_file(folder: &PathBuf, file_name: &str, content: &str) {
 /// * `compression`: The compression that will automatically be used to save the results folder (no, lz4, zstd, zlib or lzma) after a git commit
 /// * `mode`: `mode`: The checkout mode used by gblk automatically after a git checkout: soft or hard.
 pub fn create_hooks(compression: &str, mode: &str) {
+    update_config_file();
     let git_folder = get_hooks_folder();
     let post_commit_cmd = format!("gblk commit --compression {}", &compression);
     let post_commit_cmd = post_commit_cmd.as_str();
@@ -100,7 +121,7 @@ pub fn create_hooks(compression: &str, mode: &str) {
     original_commit=${{arr[5]}} \n\
     target_commit=${{arr[7]}} \n\
     \n
-    git -c core.hooksPath=/dev/null checkout ${{original_commit}} && gblk pre-co && git -c core.hooksPath=/dev/null checkout ${{target_commit}} && gblk co --mode {}
+    git -c core.hooksPath=/dev/null gblkco ${{original_commit}} && gblk pre-co && git -c core.hooksPath=/dev/null checkout ${{target_commit}} && gblk co --mode {}
     ", mode);
     let post_co_cmd = post_co_cmd.as_str();
     let v = vec![post_commit_cmd, post_co_cmd];