mirror of
https://github.com/justinian/jsix.git
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186724e751
This change adds a new interface DSL for specifying objects (with methods) and interfaces (that expose objects, and optionally have their own methods). Significant changes: - Add the new scripts/definitions Python module to parse the DSL - Add the new definitions directory containing DSL definition files - Use cog to generate syscall-related code in kernel and libj6 - Unify ordering of pointer + length pairs in interfaces
63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
def generate_template(template, outfile, **kwargs):
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from hashlib import md5
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from os import makedirs
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from os.path import dirname, exists
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content = template.render(**kwargs)
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h = md5(content.encode('utf-8')).hexdigest()
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if exists(outfile):
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existing = open(outfile, 'r').read().encode('utf-8')
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if md5(existing).hexdigest() == h:
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return False
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makedirs(dirname(outfile), exist_ok=True)
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open(outfile, 'w').write(content)
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return True
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def generate(ctx, outdir, template_type):
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from os.path import basename, join, split, splitext
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from jinja2 import Environment, PackageLoader
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for name, interface in ctx.interfaces.items():
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base = "_".join(sorted(interface.options))
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path = join("templates", base, template_type)
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env = Environment(
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loader = PackageLoader('definitions', package_path=path),
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trim_blocks = True, lstrip_blocks = True)
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env.filters
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for template_name in env.list_templates():
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template = env.get_template(template_name)
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basepath, filename = split(template_name)
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filename, ext = splitext(filename)
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if filename == "_object_":
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for obj in ctx.objects.values():
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outfile = join(outdir, basepath, obj.name + ext)
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wrote = generate_template(
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template, outfile,
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filename=obj.name + ext,
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basepath=basepath,
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object=obj,
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interface=interface,
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objects=ctx.objects)
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if wrote and ctx.verbose:
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print(f"Writing {outfile}")
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else:
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outfile = join(outdir, template_name)
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wrote = generate_template(
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template, outfile,
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filename=basename(template_name),
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interface=interface,
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objects=ctx.objects)
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if wrote and ctx.verbose:
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print(f"Writing {outfile}")
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