[gitg] Show info on errors in command line about init option

[Alberto Fanjul <albfan src gnome org>]

commit 7760298b375ac0ff3beec59c1339bf1a5406227c
Author: Alexis De Bacco <alexis_de-bacco hotmail fr>
Date:   Wed Oct 12 12:25:19 2022 +0200

    Show info on errors in command line about init option

 gitg/gitg-application.vala | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)
---
diff --git a/gitg/gitg-application.vala b/gitg/gitg-application.vala
index 6802dceb..30e396c6 100644
--- a/gitg/gitg-application.vala
+++ b/gitg/gitg-application.vala
@@ -542,32 +542,35 @@ public class Application : Gtk.Application
                        {
                                resolved = Ggit.Repository.discover(f);
                        }
-                       catch {
-                               if(!init)
+                       catch (Error err) {
+                               if (!init)
                                {
+                                       stderr.printf("Error: %s.\n", err.message);
                                        continue;
                                }
+
                                try
                                {
-                                       bool valid = f.query_exists ();
-                                       if (valid)
-                                       {
+                                       bool exists = f.query_exists ();
 
-                                               FileType type = f.query_file_type 
(FileQueryInfoFlags.NOFOLLOW_SYMLINKS);
-                                               valid = FileType.DIRECTORY == type;
-                                       }
-                                       else
-                                               valid = f.make_directory_with_parents ();
+                                       bool valid = exists
+                                                ? FileType.DIRECTORY == f.query_file_type 
(FileQueryInfoFlags.NOFOLLOW_SYMLINKS)
+                                                : f.make_directory_with_parents ();
 
+                                       string path = f.get_path();
                                        if (!valid)
                                        {
+                                               stderr.printf("Invalid location %s.\n", path);
                                                continue;
                                        }
+
                                        Repository.init_repository(f, false);
                                        resolved = Ggit.Repository.discover(f);
+                                       stdout.printf("Successfully initialized git repository at “%s”.\n", 
path);
                                }
-                               catch (Error err)
+                               catch (Error err2)
                                {
+                                       stderr.printf("Error: %s.\n", err2.message);
                                        continue;
                                }
                        }
@@ -591,7 +594,11 @@ public class Application : Gtk.Application
                        {
                                repo = new Repository(resolved, null);
                        }
-                       catch { continue; }
+                       catch (Error err)
+                       {
+                               stderr.printf("Error: not able to open repository “%s”.\n", err.message);
+                               continue;
+                       }
 
                        // Finally, create a window for the repository
                        new_window(repo, hint, command_lines);