1 files changed, 60 insertions, 0 deletions
diff --git a/crates/core/tedge/src/cli/config/commands/list.rs b/crates/core/tedge/src/cli/config/commands/list.rs
new file mode 100644
index 00000000..8645e7ec
--- /dev/null
+++ b/crates/core/tedge/src/cli/config/commands/list.rs
@@ -0,0 +1,60 @@
+use crate::cli::config::config_key::*;
+use crate::command::Command;
+use crate::ConfigError;
+use tedge_config::*;
+
+pub struct ListConfigCommand {
+    pub is_all: bool,
+    pub is_doc: bool,
+    pub config: TEdgeConfig,
+    pub config_keys: Vec<ConfigKey>,
+}
+
+impl Command for ListConfigCommand {
+    fn description(&self) -> String {
+        "list the configuration keys and values".into()
+    }
+
+    fn execute(&self) -> anyhow::Result<()> {
+        if self.is_doc {
+            print_config_doc(&self.config_keys);
+        } else {
+            print_config_list(&self.config_keys, &self.config, self.is_all)?;
+        }
+
+        Ok(())
+    }
+}
+
+fn print_config_list(
+    config_keys: &[ConfigKey],
+    config: &TEdgeConfig,
+    all: bool,
+) -> Result<(), ConfigError> {
+    let mut keys_without_values: Vec<String> = Vec::new();
+    for config_key in config_keys {
+        match (config_key.get)(config) {
+            Ok(value) => {
+                println!("{}={}", config_key.key, value);
+            }
+            Err(tedge_config::ConfigSettingError::ConfigNotSet { .. })
+            | Err(tedge_config::ConfigSettingError::SettingIsNotConfigurable { .. }) => {
+                keys_without_values.push(config_key.key.into());
+            }
+            Err(err) => return Err(err.into()),
+        }
+    }
+    if all && !keys_without_values.is_empty() {
+        println!();
+        for key in keys_without_values {
+            println!("{}=", key);
+        }
+    }
+    Ok(())
+}
+
+fn print_config_doc(config_keys: &[ConfigKey]) {
+    for config_key in config_keys {
+        println!("{:<30} {}", config_key.key, config_key.description);
+    }
+}