complete rework
* drop support for makefile generation * rewrite generator as pydoit task generator * rewrite as python module
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__init__.py
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__init__.py
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102
make.py
102
make.py
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#!/usr/bin/env python3
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from yaml import safe_load
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from pathlib import Path
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from sys import argv
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import logging
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from shlex import quote
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path_stickers_root = Path(argv[1])
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path_stickers_output_dir = path_stickers_root / 'stickers'
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path_stickers_source_dir = path_stickers_root / 'src'
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path_makefile_gen = path_stickers_root / 'makefile.gen'
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path_stickers_data_dir = path_stickers_root / 'data'
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log = logging.getLogger("stickers.make")
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logging.basicConfig(
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filename=str(path_stickers_root / 'make.log'),
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level=logging.DEBUG
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)
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output_ext = 'static'
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out_formats = {
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'static': {
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'extension': 'webp',
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'options': '-lossless 1 -f webp'
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},
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'video': {
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'extension': 'webm',
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'options': '-codec:v libvpx-vp9 -map v -pix_fmt yuva420p'
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},
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'png': {
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'extension': 'png',
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'options': '-preset:v icon -frames 1'
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}
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}
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with open(path_makefile_gen, 'w') as makefile:
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targets_list = list()
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# makefile: skeleton rules
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makefile.write(".PHONY: all default clean stickers/\n")
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makefile.write("default: all\n")
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makefile.write('stickers:\n\tmkdir stickers\n')
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makefile.write('clean:\n\trm -vrf stickers\n')
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for sticker_description_file in path_stickers_data_dir.glob('*.yaml'):
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log.debug('input description file: %s', sticker_description_file)
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with open(sticker_description_file) as yaml_file:
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sticker_description = safe_load(yaml_file)
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log.debug("stuff %s", sticker_description)
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target_filename = path_stickers_output_dir \
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/ ( sticker_description['name'] \
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+ '.' \
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+ out_formats[output_ext]['extension'] )
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prerequisite_filename=f"{sticker_description_file} "
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if sticker_description['input']['base'].get('format','') \
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not in ('lavfi', 'image2'):
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prerequisite_filename += str(
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path_stickers_source_dir \
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/ sticker_description['input']['base']['input']
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).replace(' ', '\\ ')
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targets_list.append(f"{target_filename}")
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# makefile: rule declaration
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makefile.write(f"{target_filename}: {prerequisite_filename} | stickers\n")
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# makefile: recipe ffmpeg base
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makefile.write('\tffmpeg ')
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# makefile: specify format if present
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if sticker_description['input']['base'].get('format'):
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makefile.write(f"-f {sticker_description['input']['base']['format']} ")
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# makefile: force input framerate if present
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if sticker_description['input']['base'].get('framerate'):
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makefile.write(f"-framerate {sticker_description['input']['base']['framerate']} ")
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#makefile: input base file
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input_file = quote(str(path_stickers_source_dir \
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/ sticker_description['input']['base']['input']
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)
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)
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makefile.write(f"-i {input_file} ")
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# makefile: video filter: base
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makefile.write('-vf ')
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# makefile: video filter: change transparent color
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if sticker_description['input'].get('colors',{}).get('transparent'):
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makefile.write("geq=\\''")
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transparent = sticker_description['input']['colors']['transparent']
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makefile.write(f"r=if(lt(alpha(X,Y),128),{transparent[0]},r(X,Y)):"
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f"g=if(lt(alpha(X,Y),128),{transparent[1]},g(X,Y)):"
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f"b=if(lt(alpha(X,Y),128),{transparent[2]},b(X,Y)):"
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"a=alpha(X,Y)'\\',"
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)
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# makefile: video filter: scale
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out_width = sticker_description.get('output', {}).get('width', 512)
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out_height = sticker_description.get('output', {}).get('height', 512)
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makefile.write(f"scale=w={out_width}:h={out_height}:force_original_aspect_ratio=decrease")
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# makefile: output file speed
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if sticker_description.get('output', {}).get('speed'):
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makefile.write(f",setpts={sticker_description['output']['speed']}")
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# makefile: video filter: finalize
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makefile.write(' ')
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# makefile: output file options
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makefile.write(f"{out_formats[output_ext]['options']} ")
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# makefile: replace output without confirmation
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makefile.write('-y ')
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# makefile: output file
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makefile.write(quote(str(target_filename)))
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# makefile: finalize recipe
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makefile.write('\n')
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makefile.write(f"all: {' '.join(targets_list)} | stickers\n")
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76
stickergen/actions.py
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stickergen/actions.py
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from yaml import safe_load
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from pathlib import Path
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import logging
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path_stickers_root = Path('.')
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path_stickers_output_dir = path_stickers_root / 'stickers'
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path_stickers_output_dir.mkdir(exist_ok=True)
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path_stickers_source_dir = path_stickers_root / 'src'
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path_stickers_data_dir = path_stickers_root / 'data'
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logging.basicConfig(
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filename=str(path_stickers_root / 'make.log'),
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level=logging.DEBUG)
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log = logging.getLogger('stickers.actions')
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log.setLevel(logging.DEBUG)
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log.debug('path_stickers_root = %s', path_stickers_root)
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log.debug('path_stickers_data_dir = %s', path_stickers_data_dir)
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def mktask(out_format, out_ext, ffmpeg_opts):
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def task_stickers():
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log = logging.getLogger('stickers.actions.task_'+out_format)
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log.setLevel(logging.DEBUG)
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log.debug(f'{list(path_stickers_data_dir.glob("*.yaml"))}')
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for sticker_description_file in path_stickers_data_dir.glob('*.yaml'):
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ffmpeg_action = ['ffmpeg']
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file_dep = [ sticker_description_file ]
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log.debug('input description file: %s', sticker_description_file)
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with open(sticker_description_file) as yaml_file:
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sticker_description = safe_load(yaml_file)
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if sticker_description.get('disabled', False):
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continue
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log.debug('stuff %s', sticker_description)
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out_filename = f'{sticker_description["name"]}.{out_ext}'
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target_filename = path_stickers_output_dir / out_filename
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if sticker_description['input']['base'].get('format','') not in ('lavfi', 'image2'):
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file_dep.append(f'{path_stickers_source_dir/sticker_description["input"]["base"]["input"]}')
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if sticker_description['input']['base'].get('format'):
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ffmpeg_action.append('-f')
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ffmpeg_action.append(sticker_description['input']['base']['format'])
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if sticker_description['input']['base'].get('framerate'):
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ffmpeg_action.append('-framerate')
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ffmpeg_action.append(sticker_description['input']['base']['framerate'])
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ffmpeg_action.append('-i')
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ffmpeg_action.append(path_stickers_source_dir/sticker_description['input']['base']['input'])
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ffmpeg_action.append('-vf')
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filterspec = ''
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if sticker_description['input'].get('colors',{}).get('transparent'):
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transparent = sticker_description['input']['colors']['transparent']
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filterspec += 'geq=\''
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filterspec += f'r=if(lt(alpha(X,Y),128),{transparent[0]},r(X,Y)):'
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filterspec += f'g=if(lt(alpha(X,Y),128),{transparent[1]},g(X,Y)):'
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filterspec += f'b=if(lt(alpha(X,Y),128),{transparent[2]},b(X,Y)):'
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filterspec += f'a=alpha(X,Y)\','
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out_width = sticker_description.get('output', {}).get('width', 512)
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out_height = sticker_description.get('output', {}).get('height', 512)
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filterspec += f'scale=w={out_width}:h={out_height}:force_original_aspect_ratio=decrease'
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if sticker_description.get('output', {}).get('speed'):
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filterspec += f',setpts={sticker_description['output']['speed']}'
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ffmpeg_action.append(filterspec)
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ffmpeg_action.append('-y')
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ffmpeg_action += ffmpeg_opts
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ffmpeg_action.append(target_filename)
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yield {
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'actions': [ffmpeg_action],
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'name': out_filename,
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'targets': [target_filename],
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'file_dep': file_dep
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}
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return task_stickers
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task_png = mktask('png', 'png', ['-preset:v', 'icon', '-frames', '1'])
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task_webm = mktask('webm', 'webm', ['-codec:v', 'libvpx-vp9', '-map', 'v', '-pix_fmt', 'yuva420p'])
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task_webp = mktask('webp', 'webp', ['-lossless', '1'])
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