[gitg] Make sure to keep arrays alive in closures and async

[Jesse van den Kieboom <jessevdk src gnome org>]

commit d201ca75fbc11e289e2f86d2cf12f3a707dead4d
Author: Jesse van den Kieboom <jessevdk gmail com>
Date:   Tue Dec 23 18:33:14 2014 +0100

    Make sure to keep arrays alive in closures and async

 gitg/commit/gitg-commit.vala |   30 +++++++++++++++++++++++-------
 1 files changed, 23 insertions(+), 7 deletions(-)
---
diff --git a/gitg/commit/gitg-commit.vala b/gitg/commit/gitg-commit.vala
index 880f831..f209ddb 100644
--- a/gitg/commit/gitg-commit.vala
+++ b/gitg/commit/gitg-commit.vala
@@ -124,6 +124,16 @@ namespace GitgCommit
                        }
                }
 
+               private void set_unstaged_diff_update_callback(Gitg.Repository               repository,
+                                                              Gitg.DiffView                 view,
+                                                              owned Gitg.StageStatusItem[]? items,
+                                                              bool                          patchable)
+               {
+                       d_update_diff_callback = () => {
+                               show_unstaged_diff_intern(repository, view, items, patchable);
+                       };
+               }
+
                private void show_unstaged_diff_intern(Gitg.Repository         repository,
                                                       Gitg.DiffView           view,
                                                       Gitg.StageStatusItem[]? items,
@@ -152,9 +162,7 @@ namespace GitgCommit
                                }
                        });
 
-                       d_update_diff_callback = () => {
-                               show_unstaged_diff_intern(repository, view, items, patchable);
-                       };
+                       set_unstaged_diff_update_callback(repository, view, items, patchable);
                }
 
                private void stage_submodule_at(Gitg.Commit commit)
@@ -500,6 +508,16 @@ namespace GitgCommit
                        model.reload();
                }
 
+               private void set_staged_diff_update_callback(Gitg.Repository               repository,
+                                                            Gitg.DiffView                 view,
+                                                            owned Gitg.StageStatusItem[]? items,
+                                                            bool                          patchable)
+               {
+                       d_update_diff_callback = () => {
+                               show_staged_diff_intern(repository, view, items, patchable);
+                       };
+               }
+
                private void show_staged_diff_intern(Gitg.Repository         repository,
                                                     Gitg.DiffView           view,
                                                     Gitg.StageStatusItem[]? items,
@@ -528,9 +546,7 @@ namespace GitgCommit
                                }
                        });
 
-                       d_update_diff_callback = () => {
-                               show_staged_diff_intern(repository, view, items, patchable);
-                       };
+                       set_staged_diff_update_callback(repository, view, items, patchable);
                }
 
                private void show_staged_diff(Gitg.StageStatusItem[] items)
@@ -1332,7 +1348,7 @@ namespace GitgCommit
                        });
                }
 
-               private async void revert_paths(string[] paths) throws Error
+               private async void revert_paths(owned string[] paths) throws Error
                {
                        var stage = application.repository.stage;