e1b2803ae0
Add a new `gpgkeys` option that, if set, must contain a list of public keys. These keys will then be used by ostree to verify signed commits when pulling from the remote. If the `gpgkeys` option is missing, no verification will be attempted.
75 lines
2 KiB
Python
Executable file
75 lines
2 KiB
Python
Executable file
#!/usr/bin/python3
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import json
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import os
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import sys
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import subprocess
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import uuid
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def ostree(*args, _input=None, **kwargs):
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args = list(args) + [f'--{k}={v}' for k, v in kwargs.items()]
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print(f"ostree " + " ".join(args), file=sys.stderr)
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subprocess.run(["ostree"] + args,
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encoding="utf-8",
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stdout=sys.stderr,
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input=_input,
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check=True)
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def main(options, checksums, cache, output):
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commits = options["commits"]
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os.makedirs(output, exist_ok=True)
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os.makedirs(cache, exist_ok=True)
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# Prepare the cache and the output repo
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repo_cache = os.path.join(cache, "repo")
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ostree("init", mode="archive", repo=repo_cache)
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repo_out = os.path.join(output, "repo")
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ostree("init", mode="archive", repo=repo_out)
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for commit in checksums:
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remote = commits[commit]["remote"]
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url = remote["url"]
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gpg = remote.get("gpgkeys", [])
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uid = str(uuid.uuid4())
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extra_args = []
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if not gpg:
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extra_args += ["--no-gpg-verify"]
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ostree("remote", "add",
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"--no-gpg-verify",
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*extra_args,
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uid, url,
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repo=repo_cache)
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for key in gpg:
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ostree("remote", "gpg-import", "--stdin", uid,
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repo=repo_cache, _input=key)
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# Transfer the commit: remote → cache
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print(f"pulling {commit}", file=sys.stderr)
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ostree("pull", uid, commit, repo=repo_cache)
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# Transfer the commit: cache → output
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ostree("pull-local", repo_cache, commit,
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repo=repo_out)
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# Remove the temporary remote again
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ostree("remote", "delete", uid,
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repo=repo_cache)
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json.dump({}, sys.stdout)
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return 0
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if __name__ == '__main__':
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source_args = json.load(sys.stdin)
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r = main(source_args["options"],
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source_args["checksums"],
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source_args["cache"],
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source_args["output"])
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sys.exit(r)
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