From b7e8260786926940351be4b92f495f9dc4aa2d99 Mon Sep 17 00:00:00 2001
From: Rafael Gieschke <rafael@gieschke.de>
Date: Thu, 23 Mar 2017 02:03:57 +0100
Subject: [PATCH] Add Writestream#write

---
 generate/input/descriptor.json         | 14 ++++++++++++-
 generate/input/libgit2-supplement.json | 28 ++++++++++++++++++++++++++
 test/tests/blob.js                     | 14 +++++++++++++
 3 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/generate/input/descriptor.json b/generate/input/descriptor.json
index 25a01481d..532f8fbbf 100644
--- a/generate/input/descriptor.json
+++ b/generate/input/descriptor.json
@@ -2840,7 +2840,19 @@
     },
     "writestream": {
       "cType": "git_writestream",
-      "needsForwardDeclaration": false
+      "needsForwardDeclaration": false,
+      "functions": {
+        "git_writestream_write": {
+          "isAsync": true,
+          "cFunctionName": "(*(*baton).stream).write",
+          "args": {
+            "buffer": {
+              "cppClassName": "Buffer",
+              "jsClassName": "Buffer"
+            }
+          }
+        }
+      }
     }
   }
 }
diff --git a/generate/input/libgit2-supplement.json b/generate/input/libgit2-supplement.json
index 78ecb8ad7..98db03515 100644
--- a/generate/input/libgit2-supplement.json
+++ b/generate/input/libgit2-supplement.json
@@ -259,6 +259,28 @@
           "type": "int"
         },
         "group": "stash"
+      },
+      "git_writestream_write": {
+        "type": "function",
+        "file": "types.h",
+        "args": [
+          {
+            "name": "stream",
+            "type": "git_writestream *"
+          },
+          {
+            "name": "buffer",
+            "type": "const char *"
+          },
+          {
+            "name": "len",
+            "type": "size_t"
+          }
+        ],
+        "return": {
+          "type": "int",
+          "isErrorCode": true
+        }
       }
     },
     "groups": [
@@ -343,6 +365,12 @@
           "git_tree_entry_to_object",
           "git_tree_entry_type"
         ]
+      ],
+      [
+        "writestream",
+        [
+          "git_writestream_write"
+        ]
       ]
     ],
     "types": [
diff --git a/test/tests/blob.js b/test/tests/blob.js
index dce4ce619..1a8b64e8c 100644
--- a/test/tests/blob.js
+++ b/test/tests/blob.js
@@ -480,4 +480,18 @@ describe("Blob", function() {
         });
     });
   });
+
+  it("can create a blob from a Writestream", function () {
+    var test = new Buffer("test\n");
+    var testOid = "9daeafb9864cf43055ae93beb0afd6c7d144bfa4";
+
+    return NodeGit.Blob.createFromStream(this.repository, "")
+      .then(function(stream) {
+        stream.write(test, test.byteLength);
+        return NodeGit.Blob.createFromstreamCommit(stream);
+      })
+      .then(function(oid) {
+        assert.equal(oid.toString(), testOid);
+      });
+  });
 });