[gitg/wip/format-patch] Add "Get Patch" button to Diff View

[Sindhu S <sindhus src gnome org>]

commit b61403907a24a2b40133c6a04cb8e71f80815c2d
Author: Sindhu S <sindhus gnome org>
Date:   Thu Jul 25 15:25:24 2013 +0530

    Add "Get Patch" button to Diff View

 gitg/history/gitg-history.vala               |   36 +++++++++++++++++
 libgitg/gitg-diff-view-request-resource.vala |   53 ++++++++++++++++++++++++++
 libgitg/gitg-diff-view.vala                  |    3 +
 libgitg/resources/diff-view.css              |    8 ++++
 libgitg/resources/diff-view.html             |    2 +
 libgitg/resources/diff-view.js               |    8 ++++
 6 files changed, 110 insertions(+), 0 deletions(-)
---
diff --git a/gitg/history/gitg-history.vala b/gitg/history/gitg-history.vala
index 57bf6b8..058cb92 100644
--- a/gitg/history/gitg-history.vala
+++ b/gitg/history/gitg-history.vala
@@ -152,6 +152,42 @@ namespace GitgHistory
                                d_commit_list_model.disconnect(d_insertsig);
                                d_insertsig = 0;
                        }
+                       d_main.commit_list_view.row_activated.connect(double_click_to_create_patch);
+               }
+
+               private void double_click_to_create_patch(Gtk.TreePath path, Gtk.TreeViewColumn column)
+               {
+                       Gitg.Commit selected_commit = d_commit_list_model.commit_from_path(path);
+                       string commit_subject = selected_commit.get_subject().replace(" ","-");
+                       string commit_message = selected_commit.get_message();
+                       var file = File.new_for_path(commit_subject + ".patch");
+                       string sha1 = selected_commit.get_id().to_string();
+                       string legacydate = "Mon Sep 17 00:00:00 2001";
+                       string author = selected_commit.get_author().get_name();
+                       string author_email = selected_commit.get_author().get_email();
+                       string datetime = selected_commit.get_author().get_time().format("%a, %e %b %Y %T 
%z");
+                       try
+                       {
+                               Ggit.DiffList diff = selected_commit.get_diff(null);
+                               Ggit.DiffPatch patch;
+                               Ggit.DiffDelta delta;
+                               diff.get_patch(0, out patch, out delta);
+                               
+                               //write the patch to file
+                               FileOutputStream os = file.create (FileCreateFlags.PRIVATE);
+                               os.write("From %s %s".printf(sha1, legacydate).data);
+                               os.write("\nFrom: %s <%s>".printf(author, author_email).data);
+                               os.write("\nDate: %s".printf(datetime).data);
+                               os.write("\nSubject: [PATCH] %s\n\n".printf(commit_message).data);
+                               os.write(patch.to_string().data);
+                               os.write("--\n".data);
+                               os.write("Gitg\n\n".data);
+                       }
+                       catch (Error e)
+                       {
+                               //TODO: Route error message to Infobar?
+                               stdout.printf("Failed: %s".printf(e.message));
+                       }
                }
 
                public bool available
diff --git a/libgitg/gitg-diff-view-request-resource.vala b/libgitg/gitg-diff-view-request-resource.vala
index 164b04c..faed345 100644
--- a/libgitg/gitg-diff-view-request-resource.vala
+++ b/libgitg/gitg-diff-view-request-resource.vala
@@ -102,6 +102,59 @@ namespace Gitg
                        return stream;
                }
        }
+
+       class DiffViewRequestPatch : DiffViewRequest
+       {
+               public DiffViewRequestPatch (DiffView? view, WebKit.URISchemeRequest request, Soup.URI uri)
+               {
+                       base(view, request, uri);
+                       d_view = view;
+                       d_hasView = false;
+               }
+
+               public override InputStream? run_async(Cancellable? cancellable) throws GLib.Error
+               {
+                       //Gtk.FileChooserDialog chooser = new Gtk.FileChooserDialog ("Save Patch File", null, 
Gtk.FileChooserAction.SAVE);
+                       //chooser.show();
+                       //stdout.printf("Formatting a patch");
+                       if(d_view == null) {
+                               stdout.printf ("The view is null");
+                       }
+                       Gitg.Commit selected_commit = d_view.commit;
+                       string commit_subject = selected_commit.get_subject().replace(" ","-");
+                       string commit_message = selected_commit.get_message();
+                       stdout.printf("Pushing commit with message %s\n", commit_message);
+                       /*var file = File.new_for_path(commit_subject + ".patch");
+                       string sha1 = selected_commit.get_id().to_string();
+                       string legacydate = "Mon Sep 17 00:00:00 2001";
+                       string author = selected_commit.get_author().get_name();
+                       string author_email = selected_commit.get_author().get_email();
+                       string datetime = selected_commit.get_author().get_time().format("%a, %e %b %Y %T 
%z");
+                       try
+                       {
+                               Ggit.DiffList diff = selected_commit.get_diff(null);
+                               Ggit.DiffPatch patch;
+                               Ggit.DiffDelta delta;
+                               diff.get_patch(0, out patch, out delta);
+                               
+                               //write the patch to file
+                               FileOutputStream os = file.create (FileCreateFlags.PRIVATE);
+                               os.write("From %s %s".printf(sha1, legacydate).data);
+                               os.write("\nFrom: %s <%s>".printf(author, author_email).data);
+                               os.write("\nDate: %s".printf(datetime).data);
+                               os.write("\nSubject: [PATCH] %s\n\n".printf(commit_message).data);
+                               os.write(patch.to_string().data);
+                               os.write("--\n".data);
+                               os.write("Gitg\n\n".data);
+                       }
+                       catch (Error e)
+                       {
+                               //TODO: Route error message to Infobar?
+                               stdout.printf("Failed: %s".printf(e.message));
+                       }*/
+                       return null;
+               }
+       }
 }
 
 // ex:ts=4 noet
diff --git a/libgitg/gitg-diff-view.vala b/libgitg/gitg-diff-view.vala
index bd076e9..4309789 100644
--- a/libgitg/gitg-diff-view.vala
+++ b/libgitg/gitg-diff-view.vala
@@ -107,6 +107,7 @@ namespace Gitg
                {
                        var uri = new Soup.URI(request.get_uri());
                        var path = uri.get_path();
+                       stdout.printf("The path is %s\n", path);
                        var parts = path.split("/", 3);
 
                        if (parts.length != 3)
@@ -138,6 +139,8 @@ namespace Gitg
                                        return new DiffViewRequestResource(view, request, uri);
                                case "diff":
                                        return new DiffViewRequestDiff(view, request, uri);
+                               case "patch":
+                                       return new DiffViewRequestPatch(view, request, uri);
                        }
 
                        return null;
diff --git a/libgitg/resources/diff-view.css b/libgitg/resources/diff-view.css
index c4f755f..233ff0c 100644
--- a/libgitg/resources/diff-view.css
+++ b/libgitg/resources/diff-view.css
@@ -244,4 +244,12 @@ span.hunk_header, span.file_path {
   vertical-align: middle;
 }
 
+.format_patch_button {
+  float:right;
+  margin-top:13px;
+  padding: 7px;
+  margin-right: 3px;
+}
+
+
 /* vi:ts=2:et */
diff --git a/libgitg/resources/diff-view.html b/libgitg/resources/diff-view.html
index 82f92e7..0c678ae 100644
--- a/libgitg/resources/diff-view.html
+++ b/libgitg/resources/diff-view.html
@@ -6,9 +6,11 @@
     <script type="text/javascript" src="diff-view.js"></script>
   </head>
   <body>
+
     <div id="templates">
       <!-- Commit template -->
       <div class="commit">
+        <button class="format_patch_button">Get Patch</button>
         <img class="avatar"/>
         <p>
           <span class="author"></span><br/>
diff --git a/libgitg/resources/diff-view.js b/libgitg/resources/diff-view.js
index ec989e3..fdc844d 100644
--- a/libgitg/resources/diff-view.js
+++ b/libgitg/resources/diff-view.js
@@ -231,6 +231,12 @@ function update_diff(id, lsettings)
                if ('commit' in j)
                {
                        $('#diff_header').html(write_commit(j.commit));
+
+                       $(".format_patch_button").click(function(){
+                               var r = new XMLHttpRequest();
+                               r.open("GET", "gitg-diff:/patch/?id=" + j.commit.id);
+                               r.send();
+                       });                     
                }
        }
 
@@ -279,6 +285,8 @@ addEventListener('DOMContentLoaded', function () {
                        loader.attr('src', gravatar);
                },
        });
+
+
 }, false);
 
 // vi:ts=4