1ed85dc790
Create a `InputService` class with an abstract method called `map`, meant to be implemented by all inputs. An `unmap` method may be optionally overridden by inputs to cleanup resources. Instantiate a `host.ServiceManager` in the `Stage.run` section and pass the to the host side input code so it can be used to spawn the input services. Convert all existing inputs to the new service framework.
129 lines
3.1 KiB
Python
Executable file
129 lines
3.1 KiB
Python
Executable file
#!/usr/bin/python3
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"""
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Inputs for ostree commits
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Pull the commits specified by `references` into a newly created
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repository. Optionally, if `ref` was specified, create an new
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reference for that commit.
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The returned data in `refs` is a dictionary where the keys are
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commit ids and the values are dictionries. The latter will
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contain `ref` it was specified.
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"""
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import os
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import json
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import sys
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import subprocess
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from osbuild import inputs
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SCHEMA = """
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"additionalProperties": false,
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"required": ["type", "origin", "references"],
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"properties": {
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"type": {
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"enum": ["org.osbuild.ostree"]
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},
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"origin": {
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"description": "The origin of the input (pipeline or source)",
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"type": "string",
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"enum": ["org.osbuild.source", "org.osbuild.pipeline"]
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},
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"references": {
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"description": "Commit identifier",
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"oneOf": [{
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"type": "array",
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"items": {
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"type": "string"
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}
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}, {
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"type": "object",
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"additionalProperties": false,
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"minProperties": 1,
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"patternProperties": {
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".*": {
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"type": "object",
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"additionalProperties": false,
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"properties": {
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"ref": {
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"type": "string",
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"description": "OSTree reference to create for this commit"
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}
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}
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}
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}
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}]
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}
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}
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"""
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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("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 export(checksums, cache, output):
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repo_cache = os.path.join(cache, "repo")
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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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refs = {}
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for commit, options in checksums.items():
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# Transfer the commit: remote → cache
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print(f"exporting {commit}", file=sys.stderr)
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ostree("pull-local", repo_cache, commit,
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repo=repo_out)
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ref = options.get("ref")
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if ref:
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ostree("refs", "--create", ref, commit,
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repo=repo_out)
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refs[commit] = options
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reply = {
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"path": repo_out,
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"data": {
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"refs": refs
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}
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}
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return reply
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class OSTreeInput(inputs.InputService):
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def map(self, store, origin, refs, target, _options):
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if origin == "org.osbuild.pipeline":
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for ref, options in refs.items():
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source = store.read_tree(ref)
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with open(os.path.join(source, "compose.json"), "r") as f:
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compose = json.load(f)
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commit_id = compose["ostree-commit"]
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reply = export({commit_id: options}, source, target)
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else:
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source = store.source("org.osbuild.ostree")
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reply = export(refs, source, target)
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return reply
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def main():
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service = OSTreeInput.from_args(sys.argv[1:])
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service.main()
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if __name__ == '__main__':
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main()
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