cli: split commands/config.rs into sub modules

cli/src/commands/config/edit.rs

@@ -0,0 +1,40 @@
+// Copyright 2020 The Jujutsu Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+use tracing::instrument;
+
+use super::ConfigLevelArgs;
+use crate::cli_util::{get_new_config_file_path, run_ui_editor, CommandHelper};
+use crate::command_error::CommandError;
+use crate::ui::Ui;
+
+/// Start an editor on a jj config file.
+///
+/// Creates the file if it doesn't already exist regardless of what the editor
+/// does.
+#[derive(clap::Args, Clone, Debug)]
+pub struct ConfigEditArgs {
+    #[command(flatten)]
+    pub level: ConfigLevelArgs,
+}
+
+#[instrument(skip_all)]
+pub fn cmd_config_edit(
+    _ui: &mut Ui,
+    command: &CommandHelper,
+    args: &ConfigEditArgs,
+) -> Result<(), CommandError> {
+    let config_path = get_new_config_file_path(&args.level.expect_source_kind(), command)?;
+    run_ui_editor(command.settings(), &config_path)
+}