1 files changed, 32 insertions, 0 deletions
diff --git a/src/cmd/topic/ls.rs b/src/cmd/topic/ls.rs
new file mode 100644
index 0000000..430cc6e
--- /dev/null
+++ b/src/cmd/topic/ls.rs
@@ -0,0 +1,32 @@
+// Copyright © 2022 Kim Altintop <kim@eagain.io>
+// SPDX-License-Identifier: GPL-2.0-only WITH openvpn-openssl-exception
+
+use crate::{
+    git,
+    patches::{
+        self,
+        Topic,
+    },
+};
+
+use super::Common;
+use crate::cmd;
+
+#[derive(Debug, clap::Args)]
+pub struct Ls {
+    #[clap(flatten)]
+    common: Common,
+}
+
+#[derive(serde::Serialize)]
+pub struct Output {
+    topic: Topic,
+    subject: String,
+}
+
+pub fn ls(args: Ls) -> cmd::Result<Vec<cmd::Result<Output>>> {
+    let repo = git::repo::open(&args.common.git_dir)?;
+    Ok(patches::iter::unbundled::topics_with_subject(&repo)
+        .map(|i| i.map(|(topic, subject)| Output { topic, subject }))
+        .collect())
+}