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feat: add accumulate toggle to SaveImage and PreviewImage nodes

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Add 'accumulate' BOOLEAN optional input (advanced, default False) to
SaveImage and PreviewImage INPUT_TYPES. Accept the parameter in
save_images() so the execution engine can pass it through.

Set merge flag in the 'executed' websocket message when accumulate is
enabled, so the frontend appends outputs instead of replacing them.

Add unit tests for the accumulate input definition and merge flag
derivation logic.

Amp-Thread-ID: https://ampcode.com/threads/T-019cbb66-bb43-771e-b47b-0f05a436b9cb
This commit is contained in:
bymyself
2026-02-25 22:56:56 -08:00
parent ac4a943ff3
commit c8bce44549
3 changed files with 99 additions and 3 deletions
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8
nodes.py
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@@ -1640,6 +1640,9 @@ class SaveImage:
"images": ("IMAGE", {"tooltip": "The images to save."}),
"filename_prefix": ("STRING", {"default": "ComfyUI", "tooltip": "The prefix for the file to save. This may include formatting information such as %date:yyyy-MM-dd% or %Empty Latent Image.width% to include values from nodes."})
},
"optional": {
"accumulate": ("BOOLEAN", {"default": False, "tooltip": "When enabled, outputs accumulate into a growing gallery across queue runs instead of being replaced.", "advanced": True}),
},
"hidden": {
"prompt": "PROMPT", "extra_pnginfo": "EXTRA_PNGINFO"
},
@@ -1655,7 +1658,7 @@ class SaveImage:
DESCRIPTION = "Saves the input images to your ComfyUI output directory."
SEARCH_ALIASES = ["save", "save image", "export image", "output image", "write image", "download"]
def save_images(self, images, filename_prefix="ComfyUI", prompt=None, extra_pnginfo=None):
def save_images(self, images, filename_prefix="ComfyUI", prompt=None, extra_pnginfo=None, accumulate=False):
filename_prefix += self.prefix_append
full_output_folder, filename, counter, subfolder, filename_prefix = folder_paths.get_save_image_path(filename_prefix, self.output_dir, images[0].shape[1], images[0].shape[0])
results = list()
@@ -1696,6 +1699,9 @@ class PreviewImage(SaveImage):
def INPUT_TYPES(s):
return {"required":
{"images": ("IMAGE", ), },
"optional": {
"accumulate": ("BOOLEAN", {"default": False, "tooltip": "When enabled, outputs accumulate into a growing gallery across queue runs instead of being replaced.", "advanced": True}),
},
"hidden": {"prompt": "PROMPT", "extra_pnginfo": "EXTRA_PNGINFO"},
}