meli: adding the meli email client (#7111)

Meli email client integrated into the accounts.email.accouts settings.

tests/modules/programs/meli/default.nix

@@ -0,0 +1 @@
+{ meli = ./meli.nix; }

tests/modules/programs/meli/expected.toml

@@ -0,0 +1,40 @@
+[accounts."hm@example.com"]
+display_name = "H. M. Test"
+format = "Maildir"
+identity = "hm@example.com"
+root_mailbox = "/home/hm-user/Mail/hm@example.com"
+subscribed_mailboxes = ["Inbox", "Sent", "Trash", "Drafts"]
+
+[accounts."hm@example.com".mailboxes]
+
+[accounts."hm@example.com".send_mail]
+hostname = "smtp.example.com"
+port = 1848
+[accounts."hm@example.com".send_mail.auth]
+type = "auto"
+username = "home.manager"
+[accounts."hm@example.com".send_mail.auth.password]
+type = "command_eval"
+value = "password-command"
+
+[accounts."hm@example.com".send_mail.extensions]
+CHUNKING = true
+DSN_NOTIFY = "FAILURE"
+PIPELINING = true
+PRDR = true
+
+[accounts."hm@example.com".send_mail.security]
+danger_accept_invalid_certs = false
+type = "tls"
+
+[shortcuts.composing]
+
+[shortcuts.contact-list]
+
+[shortcuts.general]
+scroll_down = "j"
+scroll_up = "k"
+
+[shortcuts.listing]
+
+[shortcuts.pager]

tests/modules/programs/meli/meli.nix

@@ -0,0 +1,28 @@
+{
+
+  imports = [
+    ../../accounts/email-test-accounts.nix
+  ];
+  programs.meli = {
+    enable = true;
+    settings = {
+      shortcuts = {
+        general = {
+          scroll_up = "k";
+          scroll_down = "j";
+        };
+      };
+    };
+  };
+  accounts.email.accounts = {
+    "hm@example.com" = {
+      meli.enable = true;
+      smtp.port = 1848;
+    };
+  };
+
+  nmt.script = ''
+        assertFileExists home-files/.config/meli/config.toml
+    		assertFileContent home-files/.config/meli/config.toml ${./expected.toml}
+    	'';
+}