Don't prompt for password if a ssh key is set for that host (#186)

* feat: don't ask password if a ssh key is set for that host

* fix: User from ssh config was not used as it should

* fix: forgot a file

src/utils/ssh.rs

@@ -0,0 +1,45 @@
+use ssh2_config::{ParseRule, SshConfig};
+
+pub fn parse_ssh2_config(path: &str) -> Result<SshConfig, String> {
+    use std::fs::File;
+    use std::io::BufReader;
+
+    let mut reader = File::open(path)
+        .map_err(|e| format!("failed to open {path}: {e}"))
+        .map(BufReader::new)?;
+    SshConfig::default()
+        .parse(&mut reader, ParseRule::ALLOW_UNKNOWN_FIELDS)
+        .map_err(|e| format!("Failed to parse ssh2 config: {e}"))
+}
+
+#[cfg(test)]
+mod test {
+
+    use crate::utils::{ssh::parse_ssh2_config, test_helpers};
+
+    #[test]
+    fn should_parse_ssh2_config() {
+        let rsa_key = test_helpers::create_sample_file_with_content("ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDErJhQxEI0+VvhlXVUyh+vMCm7aXfCA/g633AG8ezD/5EylwchtAr2JCoBWnxn4zV8nI9dMqOgm0jO4IsXpKOjQojv+0VOH7I+cDlBg0tk4hFlvyyS6YviDAfDDln3jYUM+5QNDfQLaZlH2WvcJ3mkDxLVlI9MBX1BAeSmChLxwAvxALp2ncImNQLzDO9eHcig3dtMrEKkzXQowRW5Y7eUzg2+vvVq4H2DOjWwUndvB5sJkhEfTUVE7ID8ZdGJo60kUb/02dZYj+IbkAnMCsqktk0cg/4XFX82hEfRYFeb1arkysFisPU1DOb6QielL/axeTebVplaouYcXY0pFdJt root@8c50fd4c345a");
+        let ssh_config_file = test_helpers::create_sample_file_with_content(format!(
+            r#"
+Host test
+        HostName 127.0.0.1
+        Port 2222
+        User test
+        IdentityFile {}
+        StrictHostKeyChecking no
+        UserKnownHostsFile /dev/null
+"#,
+            rsa_key.path().display()
+        ));
+
+        assert!(parse_ssh2_config(
+            ssh_config_file
+                .path()
+                .to_string_lossy()
+                .to_string()
+                .as_str()
+        )
+        .is_ok());
+    }
+}