From f05be4cce0f3ffe22371b1809284a051ecc94028 Mon Sep 17 00:00:00 2001
From: steven-omaha <35634100+steven-omaha@users.noreply.github.com>
Date: Thu, 12 Jan 2023 11:23:45 +0100
Subject: [PATCH] add 'new' argument

---
 src/action.rs |  1 +
 src/args.rs   |  6 ++++++
 src/core.rs   | 19 ++++++++++++++++++-
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/action.rs b/src/action.rs
index 177d09e..131a15f 100644
--- a/src/action.rs
+++ b/src/action.rs
@@ -2,6 +2,7 @@ pub(crate) const CLEAN: &str = "clean";
 pub(crate) const EDIT: &str = "edit";
 pub(crate) const GROUPS: &str = "groups";
 pub(crate) const IMPORT: &str = "import";
+pub(crate) const NEW: &str = "new";
 pub(crate) const REMOVE: &str = "remove";
 pub(crate) const SHOW: &str = "show";
 pub(crate) const SYNC: &str = "sync";
diff --git a/src/args.rs b/src/args.rs
index 5c76a99..0ef2403 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -25,6 +25,12 @@ fn get_arg_parser() -> Command<'static> {
                 .arg_required_else_help(true)
                 .arg(Arg::new("files").multiple_values(true)),
         )
+        .subcommand(
+            Command::new(NEW)
+                .about("create new group files")
+                .arg_required_else_help(true)
+                .arg(Arg::new("groups").multiple_values(true)),
+        )
         .subcommand(
             Command::new(REMOVE)
                 .about("remove one or more previously imported groups")
diff --git a/src/core.rs b/src/core.rs
index 5cda5c9..c4a357c 100644
--- a/src/core.rs
+++ b/src/core.rs
@@ -1,5 +1,5 @@
 use std::collections::HashSet;
-use std::fs::remove_file;
+use std::fs::{remove_file, File};
 use std::os::unix::fs::symlink;
 use std::path::PathBuf;
 
@@ -38,6 +38,9 @@ impl Pacdef {
             }
             Some((action::GROUPS, _)) => Ok(self.show_groups()),
             Some((action::IMPORT, files)) => self.import_groups(files).context("importing groups"),
+            Some((action::NEW, files)) => {
+                self.new_groups(files).context("creating new group files")
+            }
             Some((action::REMOVE, groups)) => self.remove_groups(groups).context("removing groups"),
             Some((action::SHOW, groups)) => {
                 self.show_group_content(groups).context("showing groups")
@@ -211,6 +214,20 @@ impl Pacdef {
 
         Ok(())
     }
+
+    fn new_groups(&self, files: &ArgMatches) -> Result<()> {
+        let paths = get_assumed_group_file_names(files)?;
+
+        for file in &paths {
+            ensure!(!file.exists(), "group already exists under {file:?}");
+        }
+
+        for file in paths {
+            File::create(file)?;
+        }
+
+        Ok(())
+    }
 }
 
 fn get_assumed_group_file_names(arg_match: &ArgMatches) -> Result<Vec<PathBuf>> {