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#!/usr/bin/env python3
#
# Generate gsk.resources.xml
#
# Usage: gen-gsk-gresources-xml OUTPUT-FILE [INPUT-FILE1] [INPUT-FILE2] ...
import os, sys
import filecmp
def replace_if_changed(new, old):
'''
Compare contents and only replace if changed to avoid triggering a rebuild.
'''
try:
changed = not filecmp.cmp(new, old, shallow=False)
except FileNotFoundError:
changed = True
if changed:
os.replace(new, old)
else:
os.remove(new)
source_shaders = []
vulkan_compiled_shaders = []
vulkan_shaders = []
for f in sys.argv[2:]:
if f.endswith('.glsl'):
source_shaders.append(f)
elif f.endswith('.spv'):
vulkan_compiled_shaders.append(f)
elif f.endswith('.frag') or f.endswith('.vert'):
vulkan_shaders.append(f)
else:
sys.exit(-1) # FIXME: error message
xml = '''<?xml version='1.0' encoding='UTF-8'?>
<gresources>
<gresource prefix='/org/gtk/libgsk'>
'''
for f in source_shaders:
xml += ' <file alias=\'glsl/{0}\'>resources/glsl/{0}</file>\n'.format(os.path.basename(f))
xml += '\n'
for f in vulkan_compiled_shaders:
xml += ' <file alias=\'vulkan/{0}\'>resources/vulkan/{0}</file>\n'.format(os.path.basename(f))
xml += '\n'
for f in vulkan_shaders:
xml += ' <file alias=\'vulkan/{0}\'>resources/vulkan/{0}</file>\n'.format(os.path.basename(f))
xml += '''
</gresource>
</gresources>'''
if len(sys.argv) > 1 and sys.argv[1] != '-':
outfile = sys.argv[1]
tmpfile = outfile + '~'
with open(tmpfile, 'w') as f:
f.write(xml)
replace_if_changed(tmpfile, outfile)
else:
print(xml)
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