cli jj config edit: add --print-path argument

cli/src/commands/config.rs

@@ -136,6 +136,11 @@ pub(crate) struct ConfigSetArgs {
 pub(crate) struct ConfigEditArgs {
     #[clap(flatten)]
     pub config_args: ConfigArgs,
+    /// Print the path to the config file instead of launching an editor
+    ///
+    /// A config file at that path may or may not exist.
+    #[arg(long, visible_alias = "path")]
+    print_path: bool,
 }
 
 #[instrument(skip_all)]
@@ -263,10 +268,15 @@ pub(crate) fn cmd_config_set(
 
 #[instrument(skip_all)]
 pub(crate) fn cmd_config_edit(
-    _ui: &mut Ui,
+    ui: &mut Ui,
     command: &CommandHelper,
     args: &ConfigEditArgs,
 ) -> Result<(), CommandError> {
     let config_path = get_new_config_file_path(&args.config_args.get_source_kind(), command)?;
-    run_ui_editor(command.settings(), &config_path)
+    if args.print_path {
+        writeln!(ui.stdout(), "{}", config_path.display())?;
+        Ok(())
+    } else {
+        run_ui_editor(command.settings(), &config_path)
+    }
 }

cli/tests/cli-reference@.md.snap

@@ -554,7 +554,7 @@ Update config file to set the given option to a given value
 
 Start an editor on a jj config file
 
-**Usage:** `jj config edit <--user|--repo>`
+**Usage:** `jj config edit [OPTIONS] <--user|--repo>`
 
 ###### **Options:**
 
@@ -566,6 +566,10 @@ Start an editor on a jj config file
 
   Possible values: `true`, `false`
 
+* `--print-path` — Print the path to the config file instead of launching an editor
+
+  Possible values: `true`, `false`
+
 
 
 

cli/tests/test_config_command.rs

@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+use insta::assert_snapshot;
 use itertools::Itertools;
 use regex::Regex;
 
@@ -544,6 +545,13 @@ fn test_config_edit_user() {
     )
     .unwrap();
     test_env.jj_cmd_ok(&repo_path, &["config", "edit", "--user"]);
+
+    assert_snapshot!(
+      test_env.jj_cmd_success(&repo_path, &["config", "edit", "--user", "--print-path"]),
+      @r###"
+      $TEST_ENV/config
+      "###
+    );
 }
 
 #[test]
@@ -562,6 +570,13 @@ fn test_config_edit_repo() {
     )
     .unwrap();
     test_env.jj_cmd_ok(&repo_path, &["config", "edit", "--repo"]);
+
+    assert_snapshot!(
+      test_env.jj_cmd_success(&repo_path, &["config", "edit", "--repo", "--print-path"]),
+      @r###"
+      $TEST_ENV/repo/.jj/repo/config.toml
+      "###
+    );
 }
 
 #[test]