update action match function

TODO.md

@@ -6,3 +6,4 @@
 - make table use section header with brackets
 - tutorial
 - remove "Arch" references
+- update README for subcommands "group", "package"

crates/pacdef_core/src/action.rs

@@ -4,8 +4,8 @@ use pacdef_macros::Action;
 pub enum Actions {
     Clean,
     Edit,
-    Groups,
     Import,
+    List,
     New,
     Remove,
     Review,

crates/pacdef_core/src/args.rs

@@ -21,23 +21,18 @@ fn get_arg_parser() -> Command {
 }
 
 fn get_group_cmd() -> Command {
-    let remove = Command::new(REMOVE)
-        .about("remove one or more previously imported groups")
-        .arg_required_else_help(true)
-        .arg(Arg::new("groups").num_args(1..));
-
     let edit = Command::new(EDIT)
         .about("edit one or more existing group files")
         .arg_required_else_help(true)
         .arg(Arg::new("group").num_args(1..));
 
-    let list = Command::new(GROUPS).about("list names of imported groups");
-
     let import = Command::new(IMPORT)
         .about("import one or more group files")
         .arg_required_else_help(true)
         .arg(Arg::new("files").num_args(1..));
 
+    let list = Command::new(LIST).about("list names of imported groups");
+
     let new = Command::new(NEW)
         .about("create new group files")
         .arg_required_else_help(true)
@@ -50,6 +45,11 @@ fn get_group_cmd() -> Command {
         )
         .arg(Arg::new("groups").num_args(1..));
 
+    let remove = Command::new(REMOVE)
+        .about("remove one or more previously imported groups")
+        .arg_required_else_help(true)
+        .arg(Arg::new("groups").num_args(1..));
+
     let show = Command::new(SHOW)
         .about("show packages under an imported group")
         .arg_required_else_help(true)

crates/pacdef_core/src/core.rs

@@ -19,6 +19,9 @@ use crate::ui::get_user_confirmation;
 use crate::Config;
 use crate::Group;
 
+const UNREACHABLE_ARM: &str = "argument parser requires some subcommand to return an `ArgMatches`";
+const ACTION_NOT_MATCHED: &str = "could not match action";
+
 /// Most data that is required during runtime of the program.
 pub struct Pacdef {
     args: ArgMatches,
@@ -53,25 +56,36 @@ impl Pacdef {
     #[allow(clippy::unit_arg)]
     pub fn run_action_from_arg(mut self) -> Result<()> {
         match self.args.subcommand() {
-            Some((CLEAN, _)) => self.clean_packages(),
-            Some((EDIT, args)) => self.edit_group_files(args).context("editing group files"),
-            Some((GROUPS, _)) => Ok(self.show_groups()),
-            Some((IMPORT, args)) => self.import_groups(args).context("importing groups"),
-            Some((NEW, args)) => self.new_groups(args).context("creating new group files"),
-            Some((REMOVE, args)) => self.remove_groups(args).context("removing groups"),
-            Some((REVIEW, _)) => review::review(self.get_unmanaged_packages(), self.groups)
-                .context("review unmanaged packages"),
-            Some((SHOW, args)) => self.show_group_content(args).context("showing groups"),
-            Some((SEARCH, args)) => {
-                search::search_packages(args, &self.groups).context("searching packages")
-            }
-            Some((SYNC, _)) => self.install_packages(),
-            Some((UNMANAGED, _)) => self.show_unmanaged_packages(),
+            Some(("group", args)) => match args.subcommand() {
+                Some((EDIT, args)) => self.edit_group_files(args).context("editing group files"),
+                Some((IMPORT, args)) => self.import_groups(args).context("importing groups"),
+                Some((LIST, _)) => Ok(self.show_groups()),
+                Some((NEW, args)) => self.new_groups(args).context("creating new group files"),
+                Some((REMOVE, args)) => self.remove_groups(args).context("removing groups"),
+                Some((SHOW, args)) => self.show_group_content(args).context("showing groups"),
+
+                Some((_, _)) => panic!("{ACTION_NOT_MATCHED}"),
+                None => unreachable!("{UNREACHABLE_ARM}"),
+            },
+
+            Some(("package", args)) => match args.subcommand() {
+                Some((CLEAN, _)) => self.clean_packages(),
+                Some((REVIEW, _)) => review::review(self.get_unmanaged_packages(), self.groups)
+                    .context("review unmanaged packages"),
+                Some((SEARCH, args)) => {
+                    search::search_packages(args, &self.groups).context("searching packages")
+                }
+                Some((SYNC, _)) => self.install_packages(),
+                Some((UNMANAGED, _)) => self.show_unmanaged_packages(),
+
+                Some((_, _)) => panic!("{ACTION_NOT_MATCHED}"),
+                None => unreachable!("{UNREACHABLE_ARM}"),
+            },
+
             Some((VERSION, _)) => Ok(self.show_version()),
-            Some((_, _)) => panic!(),
-            None => {
-                unreachable!("argument parser requires some subcommand to return an `ArgMatches`")
-            }
+
+            Some((_, _)) => panic!("{ACTION_NOT_MATCHED}"),
+            None => unreachable!("{UNREACHABLE_ARM}"),
         }
     }