pushing works with hard-coded ref

src/refractr.rs

@@ -1,4 +1,4 @@
-use git2::Repository;
+use git2::{Cred, PushOptions, Remote, RemoteCallbacks, Repository};
 use sha2::{Sha256, Digest};
 
 use crate::common::{self, Refractr};
@@ -16,13 +16,15 @@ fn set_up_work_dir(work_dir: PathBuf) -> String {
   work_dir.to_string_lossy().to_string()
 }
 
-fn fast_forward(repo_dir: &str, branches: &Option<Vec<String>>) -> Result<(), Error> {
-  let repo = Repository::open(repo_dir)?;
-  let branch_list: Vec<String> = match branches {
+fn get_branches(repo: &Repository, branches: &Option<Vec<String>>) -> Vec<String> {
+  match branches {
     Some(repo_branches) => repo_branches.to_vec(),
     None => {
       let mut strings = Vec::new();
-      let remote_branches = repo.branches(Some(git2::BranchType::Remote))?;
+      let remote_branches = match repo.branches(Some(git2::BranchType::Remote)) {
+        Ok(b) => b,
+        Err(e) => panic!("refractr: failed to get branches: {}", e)
+      };
       for branch in remote_branches {
         if let Ok((b, _)) = branch {
           if let Ok(Some(name)) = b.name() {
@@ -32,7 +34,12 @@ fn fast_forward(repo_dir: &str, branches: &Option<Vec<String>>) -> Result<(), Er
       }
       strings
     }
-  };
+  }
+}
+
+fn fast_forward(repo_dir: &str, branches: &Option<Vec<String>>) -> Result<(), Error> {
+  let repo = Repository::open(repo_dir)?;
+  let branch_list: Vec<String> = get_branches(&repo, branches);
 
   repo.find_remote("origin")?.fetch(&branch_list, None, None)?;
   Ok(())
@@ -82,7 +89,7 @@ pub fn start(refractr: Refractr, cfgs: Vec<ConfigFile>) -> std::io::Result<()> {
     };
 
     // create remotes for each "to" repo
-    let mut remote_list = Vec::new();
+    let mut remote_list: Vec<Remote<'_>> = Vec::new();
     for to in &cfg.config.to {
       let mut hasher = Sha256::new();
       hasher.update(to);
@@ -99,6 +106,20 @@ pub fn start(refractr: Refractr, cfgs: Vec<ConfigFile>) -> std::io::Result<()> {
         }
       }
     }
+
+    for mut remote in remote_list {
+      let mut callbacks = RemoteCallbacks::new();
+      callbacks.credentials(|_,_,_| Cred::ssh_key("git", None, &Path::new(&cfg.config.git.ssh_identity_file), None));
+      let mut push_options = PushOptions::new();
+      push_options.remote_callbacks(callbacks);
+
+      match remote.push::<&str>(&["refs/heads/master"], Some(&mut push_options)) {
+        Ok(_) => (),
+        Err(e) => {
+          eprintln!("refractr: failed to push to remote: {}: {}", remote.url().unwrap(), e)
+        }
+      }
+    }
   }
 
   Ok(())