Initial work to add 'diff' supportupgrade-to-development

2 files changed, 62 insertions, 0 deletions

diff --git a/git2.nobj.lua b/git2.nobj.lua
index d937d5c..e582269 100644
--- a/git2.nobj.lua
+++ b/git2.nobj.lua
@@ -74,6 +74,7 @@ subfiles {
 "src/tag.nobj.lua",
 "src/revwalk.nobj.lua",
 "src/reference.nobj.lua",
+"src/diff.nobj.lua",
 },
 }
 
diff --git a/src/diff.nobj.lua b/src/diff.nobj.lua
new file mode 100644
index 0000000..cc7005d
--- /dev/null
+++ b/src/diff.nobj.lua
@@ -0,0 +1,61 @@
+-- Copyright (c) 2010-2012 by Robert G. Jakabosky <bobby@sharedrealm.com>
+-- Copyright (c) 2012 by Daniel Silverstone <dsilvers@digital-scurf.org>
+--
+-- Permission is hereby granted, free of charge, to any person obtaining a copy
+-- of this software and associated documentation files (the "Software"), to deal
+-- in the Software without restriction, including without limitation the rights
+-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+-- copies of the Software, and to permit persons to whom the Software is
+-- furnished to do so, subject to the following conditions:
+--
+-- The above copyright notice and this permission notice shall be included in
+-- all copies or substantial portions of the Software.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+-- LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+-- THE SOFTWARE.
+
+object "Diff" {
+	c_source [[
+typedef git_diff_list Diff;
+
+static int print_cb_fn(void *cb_data,
+        git_diff_delta *delta,
+        git_diff_range *range,
+        char line_origin, /**< GIT_DIFF_LINE_... value from above */
+        const char *content,
+        size_t content_len)
+{
+	lua_State *L = (lua_State *)cb_data;
+	lua_pushlstring(L, content, content_len);
+	return 0;
+}
+
+
+]],
+	constructor "tree_to_tree" {
+		c_call { "GitError", "err" } "git_diff_tree_to_tree"
+			{ "Repository *", "repo", "void *", "opts",
+			  "Tree *", "old_tree", "Tree *", "new_tree", "Diff *", "&this" },
+	},
+	method "entrycount" {
+		c_method_call "int"  "git_diff_entrycount" { "int", "delta_t" }
+	},
+	method "print_patch" {
+	   c_source [[
+		 {
+		    int cur_top = lua_gettop(L);
+		    git_diff_print_patch(${this}, L, print_cb_fn);
+		    if (lua_gettop(L) != cur_top) {
+		       lua_concat(L, lua_gettop(L) - cur_top);
+		       return 1;
+		    }
+		 }
+	   ]]
+	},
+}
+