From 93b959111dcc90223b3785b22f3089b670f59489 Mon Sep 17 00:00:00 2001
From: Drew DeVault <sir@cmpwn.com>
Date: Mon, 1 Oct 2018 15:33:54 -0400
Subject: [PATCH] Wire up browse and patch buttons

---
 gitsrht/blueprints/repo.py    | 24 ++++++++++++++++++++++++
 gitsrht/templates/commit.html | 20 ++++++++++++++------
 2 files changed, 38 insertions(+), 6 deletions(-)

diff --git a/gitsrht/blueprints/repo.py b/gitsrht/blueprints/repo.py
index 0e0fe08..3a27320 100644
--- a/gitsrht/blueprints/repo.py
+++ b/gitsrht/blueprints/repo.py
@@ -5,6 +5,7 @@ import subprocess
 from datetime import datetime, timedelta
 from jinja2 import Markup
 from flask import Blueprint, render_template, abort, send_file, request
+from flask import Response
 from flask_login import current_user
 from gitsrht.access import get_repo, has_access, UserAccess
 from gitsrht.editorconfig import EditorConfig
@@ -303,3 +304,26 @@ def commit(owner, repo, ref):
         owner=owner, repo=repo, ref=ref, refs=refs,
         commit=commit, parent=parent,
         diff=diff, diffstat=diffstat, pygit2=pygit2)
+
+@repo.route("/<owner>/<repo>/commit/<ref>.patch")
+def patch(owner, repo, ref):
+    owner, repo = get_repo(owner, repo)
+    if not repo:
+        abort(404)
+    if not has_access(repo, UserAccess.read):
+        abort(401)
+    git_repo = CachedRepository(repo.path)
+    commit = git_repo.revparse_single(ref)
+    if isinstance(commit, pygit2.Tag):
+        ref = git_repo.get(commit.target)
+    subp = subprocess.run([
+        "git",
+        "--git-dir", repo.path,
+        "format-patch",
+        "--stdout", "-1",
+        ref
+    ], timeout=10, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    if subp.returncode != 0:
+        print(subp.stdout, subp.stderr)
+        return "Error preparing patch", 500
+    return Response(subp.stdout, mimetype='text/plain')
diff --git a/gitsrht/templates/commit.html b/gitsrht/templates/commit.html
index 1fc0208..37db30c 100644
--- a/gitsrht/templates/commit.html
+++ b/gitsrht/templates/commit.html
@@ -13,12 +13,20 @@
       </div>
     </div>
     <div class="col-md-2">
-      <a href="#" class="btn btn-primary btn-block">
-        browse {{icon("caret-right")}}
-      </a>
-      <a href="#" class="btn btn-default btn-block">
-        patch {{icon("caret-right")}}
-      </a>
+      <a
+        href="{{url_for("repo.tree",
+          owner=repo.owner.canonical_name,
+          repo=repo.name,
+          ref=commit.id.hex)}}"
+        class="btn btn-primary btn-block"
+      >browse {{icon("caret-right")}}</a>
+      <a
+        href="{{url_for("repo.patch",
+          owner=repo.owner.canonical_name,
+          repo=repo.name,
+          ref=commit.id.hex)}}"
+        class="btn btn-default btn-block"
+      >patch {{icon("caret-right")}}</a>
     </div>
   </div>
   <div class="row">
-- 
2.38.4