Juan Sebastian Giraldo
Upload Lora app
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import gradio as gr
import json
import sys
import io
import subprocess
import tempfile
from pathlib import Path
from safetensors_worker import PrintMetadata
class Context:
def __init__(self):
self.obj = {'quiet': True, 'parse_more': True}
ctx = Context()
def debug_log(message: str):
print(f"[DEBUG] {message}")
def load_metadata(file_path: str) -> tuple:
try:
debug_log(f"Loading file: {file_path}")
if not file_path:
return {"status": "Awaiting input"}, {}, "", "", ""
old_stdout = sys.stdout
sys.stdout = buffer = io.StringIO()
exit_code = PrintMetadata(ctx.obj, file_path.name)
sys.stdout = old_stdout
metadata_str = buffer.getvalue().strip()
if exit_code != 0:
error_msg = f"Error code {exit_code}"
return {"error": error_msg}, {}, "", error_msg, ""
try:
full_metadata = json.loads(metadata_str)
except json.JSONDecodeError:
error_msg = "Invalid metadata structure"
return {"error": error_msg}, {}, "", error_msg, ""
training_params = full_metadata.get("__metadata__", {})
key_metrics = {
key: training_params.get(key, "N/A")
for key in [
"ss_optimizer", "ss_num_epochs", "ss_unet_lr",
"ss_text_encoder_lr", "ss_steps"
]
}
return full_metadata, key_metrics, json.dumps(full_metadata, indent=2), "", file_path.name
except Exception as e:
return {"error": str(e)}, {}, "", str(e), ""
def validate_json(edited_json: str) -> tuple:
try:
return True, json.loads(edited_json), ""
except Exception as e:
return False, None, str(e)
def update_metadata(edited_json: str) -> tuple:
try:
modified_data = json.loads(edited_json)
metadata = modified_data.get("__metadata__", {})
key_fields = {
param: metadata.get(param, "N/A")
for param in [
"ss_optimizer", "ss_num_epochs", "ss_unet_lr",
"ss_text_encoder_lr", "ss_steps"
]
}
return key_fields, modified_data, ""
except:
return gr.update(), gr.update(), ""
def save_metadata(edited_json: str, source_file: str, output_name: str) -> tuple:
debug_log("Initiating save process")
try:
if not source_file:
return None, "No source file provided"
is_valid, parsed_data, error = validate_json(edited_json)
if not is_valid:
return None, f"Validation error: {error}"
with tempfile.NamedTemporaryFile(mode='w', suffix='.json', delete=False) as tmp:
json.dump(parsed_data, tmp, indent=2)
temp_path = tmp.name
source_path = Path(source_file)
if output_name.strip():
base_name = output_name.strip()
if not base_name.endswith(".safetensors"):
base_name += ".safetensors"
else:
base_name = f"{source_path.stem}_modified.safetensors"
output_path = Path(base_name)
version = 1
while output_path.exists():
output_path = Path(f"{source_path.stem}_modified_{version}.safetensors")
version += 1
cmd = [
sys.executable,
"safetensors_util.py",
"writemd",
source_file,
temp_path,
str(output_path),
"-f"
]
result = subprocess.run(
cmd,
capture_output=True,
text=True,
check=False
)
Path(temp_path).unlink(missing_ok=True)
if result.returncode != 0:
error_msg = f"Save failure: {result.stderr}"
return None, error_msg
return str(output_path), ""
except Exception as e:
return None, f"Critical error: {str(e)}"
def create_interface():
with gr.Blocks(title="LoRA Metadata Editor") as app:
gr.Markdown("# LoRA Metadata Editor")
with gr.Tabs():
with gr.Tab("Metdata Viewer"):
gr.Markdown("### LoRa Upload")
file_input = gr.File(
file_types=[".safetensors"],
show_label=False
)
with gr.Row():
with gr.Column():
gr.Markdown("### Full Metadata")
full_viewer = gr.JSON(show_label=False)
with gr.Column():
gr.Markdown("### Key Metrics")
key_viewer = gr.JSON(show_label=False)
with gr.Tab("Edit Metadata"):
with gr.Row():
with gr.Column():
gr.Markdown("### JSON Workspace")
metadata_editor = gr.Textbox(
lines=25,
show_label=False,
placeholder="Edit metadata JSON here"
)
gr.Markdown("### Output Name")
filename_input = gr.Textbox(
placeholder="Leave empty for auto-naming",
show_label=False
)
with gr.Column():
gr.Markdown("### Live Preview")
modified_viewer = gr.JSON(show_label=False)
save_btn = gr.Button("💾 Save Metadata", variant="primary")
gr.Markdown("### Download Modified LoRa")
output_file = gr.File(
visible=False,
show_label=False
)
status_display = gr.HTML(visible=False)
source_tracker = gr.State()
file_input.upload(
load_metadata,
inputs=file_input,
outputs=[full_viewer, key_viewer, metadata_editor, status_display, source_tracker]
)
metadata_editor.change(
update_metadata,
inputs=metadata_editor,
outputs=[key_viewer, modified_viewer, status_display]
)
save_btn.click(
save_metadata,
inputs=[metadata_editor, source_tracker, filename_input],
outputs=[output_file, status_display],
).then(
lambda x: gr.File(value=x, visible=True),
inputs=output_file,
outputs=output_file
)
return app
if __name__ == "__main__":
interface = create_interface()
interface.launch()