1 files changed, 93 insertions, 0 deletions
diff --git a/src/authenticate.rs b/src/authenticate.rs
new file mode 100644
index 0000000..fab33a2
--- /dev/null
+++ b/src/authenticate.rs
@@ -0,0 +1,93 @@
+use std::path::Path;
+
+use auth_git2::Prompter;
+use inquire::{InquireError, PasswordDisplayMode};
+
+use crate::Config;
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct Inquirer<'a>(pub &'a Config);
+
+fn config_value(git_config: &git2::Config, name: &str) -> Option<String> {
+	git_config
+		.get_entry(name)
+		.ok()
+		.and_then(|entry| entry.value().map(|entry| entry.to_string()))
+}
+
+fn prompt_secret(message: &str) -> Result<String, InquireError> {
+	inquire::Password::new(message)
+		.without_confirmation()
+		.with_display_mode(PasswordDisplayMode::Masked)
+		.prompt()
+}
+
+impl Prompter for Inquirer<'_> {
+	fn prompt_username_password(
+		&mut self,
+		url: &str,
+		git_config: &git2::Config,
+	) -> Option<(String, String)> {
+		let username = self
+			.0
+			.username_for_url(url)
+			.cloned()
+			.or_else(|| config_value(git_config, "autosave.username"));
+		let password = self
+			.0
+			.password_for_url(url)
+			.cloned()
+			.or_else(|| config_value(git_config, "autosave.password"));
+		if let Some(username) = username
+			&& let Some(password) = password
+		{
+			return Some((username, password));
+		}
+
+		println!("Authenticating to {url}");
+		let username = inquire::prompt_text("Username:").ok()?;
+		let password = prompt_secret("Password:").ok()?;
+
+		Some((username, password))
+	}
+
+	fn prompt_password(
+		&mut self,
+		username: &str,
+		url: &str,
+		git_config: &git2::Config,
+	) -> Option<String> {
+		let password = self
+			.0
+			.password_for_url(url)
+			.cloned()
+			.or_else(|| config_value(git_config, "autosave.password"));
+		if let Some(password) = password {
+			return Some(password);
+		}
+
+		println!("Authenticating to {url}");
+		prompt_secret(&format!("Password for {username}:")).ok()
+	}
+
+	fn prompt_ssh_key_passphrase(
+		&mut self,
+		private_key_path: &Path,
+		git_config: &git2::Config,
+	) -> Option<String> {
+		let password = self
+			.0
+			.passphrase_for_key(private_key_path)
+			.cloned()
+			.or_else(|| config_value(git_config, "autosave.password"));
+		if let Some(password) = password {
+			return Some(password);
+		}
+
+		prompt_secret(&format!(
+			"Passphrase for {}:",
+			private_key_path.to_string_lossy()
+		))
+		.ok()
+	}
+}