feat! add a global --config option

This breaks all invocations of the Obnam client, as the option needs
to come before the subcommand name.

The benefit of this breakage is simpler, less repetitive code.

1 files changed, 1 insertions, 3 deletions

diff --git a/src/cmd/list.rs b/src/cmd/list.rs
index 1741bce..6c48244 100644
--- a/src/cmd/list.rs
+++ b/src/cmd/list.rs
@@ -1,8 +1,6 @@
 use crate::client::{BackupClient, ClientConfig};
-use std::path::Path;
 
-pub fn list(config: &Path) -> anyhow::Result<()> {
-    let config = ClientConfig::read_config(&config)?;
+pub fn list(config: &ClientConfig) -> anyhow::Result<()> {
     let client = BackupClient::new(&config.server_url)?;
 
     for gen_id in client.list_generations()? {