forge: Add option to specify remote name

Close #32

src/provider/mod.rs

@@ -213,6 +213,7 @@ pub trait Provider {
         &self,
         worktree_setup: bool,
         force_ssh: bool,
+        remote_name: Option<String>,
     ) -> Result<HashMap<Option<String>, Vec<repo::Repo>>, String> {
         let mut repos = vec![];
 
@@ -292,10 +293,12 @@ pub trait Provider {
 
         let mut ret: HashMap<Option<String>, Vec<repo::Repo>> = HashMap::new();
 
+        let remote_name = remote_name.unwrap_or_else(|| self.name().to_string());
+
         for repo in repos {
             let namespace = repo.namespace();
 
-            let mut repo = repo.into_repo_config(self.name(), worktree_setup, force_ssh);
+            let mut repo = repo.into_repo_config(&remote_name, worktree_setup, force_ssh);
 
             // Namespace is already part of the hashmap key. I'm not too happy
             // about the data exchange format here.