65 lines
2.5 KiB
Python
65 lines
2.5 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (c) the purl authors
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# SPDX-License-Identifier: MIT
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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# Visit https://github.com/package-url/packageurl-python for support and
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# download.
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from typing import Optional
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from typing import Union
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from packageurl import PackageURL
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def get_golang_purl(go_package: str):
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"""
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Return a PackageURL object given an imported ``go_package``
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or go module "name version" string as seen in a go.mod file.
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>>> get_golang_purl(go_package="github.com/gorilla/mux v1.8.1")
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PackageURL(type='golang', namespace='github.com/gorilla', name='mux', version='v1.8.1', qualifiers={}, subpath=None)
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"""
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if not go_package:
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return
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version = None
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# Go package in *.mod files is represented like this
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# package version
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# github.com/gorilla/mux v1.8.1
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# https://github.com/moby/moby/blob/6c10086976d07d4746e03dcfd188972a2f07e1c9/vendor.mod#L51
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if "@" in go_package:
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raise Exception(f"{go_package} should not contain ``@``")
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if " " in go_package:
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go_package, _, version = go_package.rpartition(" ")
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parts = go_package.split("/")
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if not parts:
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return
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name = parts[-1]
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namespace = "/".join(parts[:-1])
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return PackageURL(type="golang", namespace=namespace, name=name, version=version)
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def ensure_str(value: Optional[Union[str, bytes]]) -> Optional[str]:
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if value is None:
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return None
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if isinstance(value, bytes):
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return value.decode("utf-8") # or whatever encoding is right
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return value
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