Only provide selection method when --envs is passed but no arguments,…

… for the export subcommand

src/bin/envio/commands.rs

@@ -627,7 +627,7 @@ impl Command {
                         return;
                     };
 
-                if envs.is_none() {
+                if envs.is_some() && envs.as_ref().unwrap().contains(&"select".to_string()) {
                     let prompt = MultiSelect::new("Select the environment variables you want to export:", profile.envs.keys().collect())
                         .with_default(&(0..profile.envs.len()).collect::<Vec<usize>>())
                         .with_vim_mode(vim_mode)

src/lib.rs

@@ -155,11 +155,11 @@ impl Profile {
 
     @param file_name &str
     */
-    pub fn export_envs(&self, file_name: &str, envs: &Option<Vec<String>>) {
+    pub fn export_envs(&self, file_name: &str, envs_selected: &Option<Vec<String>>) {
         let mut file = std::fs::OpenOptions::new()
             .create(true)
             .write(true)
-            .append(false)
+            .truncate(true)
             .open(get_cwd().join(file_name))
             .unwrap();
 
@@ -171,13 +171,13 @@ impl Profile {
         }
 
         let mut keys: Vec<_> = self.envs.keys().cloned().collect::<Vec<String>>();
-        if let Some(envs) = envs {
-            if !envs.is_empty() {
+        if let Some(envs_selected) = envs_selected {
+            if !envs_selected.is_empty() {
                 keys = self
                     .envs
                     .keys()
                     .into_iter()
-                    .filter(|item| envs.contains(item))
+                    .filter(|item| envs_selected.contains(item))
                     .cloned()
                     .collect::<Vec<String>>();
             }
@@ -192,7 +192,7 @@ impl Profile {
             buffer = buffer + key.as_str() + "=" + self.envs.get(key.as_str()).unwrap() + "\n";
         }
 
-        if let Err(e) = writeln!(file, "{}", buffer) {
+        if let Err(e) = write!(file, "{}", buffer) {
             println!("{}: {}", "Error".red(), e);
         }