From f9f8cf0be7e9ed8200792534aa919beb18dd06fd Mon Sep 17 00:00:00 2001
From: Tim Pietrusky <timpietrusky@gmail.com>
Date: Thu, 22 Feb 2024 23:02:46 +0100
Subject: [PATCH] feat: only generate output when input image was changed

---
 .github/workflows/release-windows.yml  |  4 +++-
 resources/python/live-painting/main.py | 13 ++++++++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/release-windows.yml b/.github/workflows/release-windows.yml
index f967b4ef7..1e7395259 100644
--- a/.github/workflows/release-windows.yml
+++ b/.github/workflows/release-windows.yml
@@ -8,7 +8,7 @@ on:
 
 jobs:
   release:
-    runs-on: windows-latest-l
+    runs-on: windows-latest
     if: ${{ !contains(github.event.head_commit.message, 'chore(release)') }}
     permissions:
       contents: write # to be able to publish a GitHub release
@@ -18,6 +18,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v3
+        with:
+          persist-credentials: false
 
       - name: Setup node
         uses: actions/setup-node@v4
diff --git a/resources/python/live-painting/main.py b/resources/python/live-painting/main.py
index 4a7326822..ae64493a0 100644
--- a/resources/python/live-painting/main.py
+++ b/resources/python/live-painting/main.py
@@ -239,6 +239,9 @@ def main(pipe, input_image_path, output_image_path, shutdown_event):
     strength = 0.99
     guidance_scale = None
 
+    # When was the input image last modified
+    last_modified_time = None
+
     # Queue to hold parameters received from stdin
     params_queue = queue.Queue()
 
@@ -257,10 +260,18 @@ def main(pipe, input_image_path, output_image_path, shutdown_event):
                 seed = parameters.get("seed", seed)
                 strength = parameters.get("strength", strength)
                 guidance_scale = parameters.get("guidance_scale", guidance_scale)
-                print(f"Updated parameters {parameters}")
         except queue.Empty:
             pass  # No new parameters, proceed with the existing ones
 
+        # Get the current modified time of the input image
+        current_modified_time = os.path.getmtime(input_image_path)
+
+        if current_modified_time != last_modified_time:
+            last_modified_time = current_modified_time
+        else:
+            # Skip this iteration since the input image has not changed
+            continue
+
         # Only generate an image if the prompt is not empty
         if prompt is not None and prompt.strip():
             torch.manual_seed(seed)