jochen
7ed7da1398
mesh/merge-gate head 7ed7da1398df merged into trunk 307dd23d6d2a — pass: the change touches no module of the mesh's graph
mesh/repo-check head 7ed7da1398df merged into trunk 307dd23d6d2a — pass: its merge-check.sh passed, each part in its toolchain: merge-check.sh (typescript)…
mesh/delivery delivered
The lab module clones every repository with --depth 50, and a fresh bare repository refuses a push whose history ends in a cut, so the genesis bed raised its anchor and forge and then skipped. The three beds that carry a checkout into a forge now share one helper that sets receive.shallowUpdate on the bare repository. Unshallowing instead cannot work in a lab run: the forge credential is removed once the run's clones are done.
32 lines
2.0 KiB
TypeScript
32 lines
2.0 KiB
TypeScript
/**
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* A bed's forge: a checkout's HEAD carried into a fresh bare repository, which a git daemon then serves.
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*
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* **A shallow checkout is carried as it is** (novox/hq issue 689). The lab module checks every repository
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* out shallow, and a fresh bare repository refuses a push whose history ends in a cut ("shallow update not
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* allowed"), so the genesis bed raised its anchor and forge and then skipped. The bare repository accepts
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* the cut (`receive.shallowUpdate`) and serves the history the checkout holds: the bed serves the commit
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* under test, and nothing it raises reads further back than the run's checkout does. Unshallowing first is
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* not an option in a lab run: the forge credential is gone once the run's clones are done, so a private
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* repository could not be fetched again.
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*/
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import { execFileSync } from "node:child_process";
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/**
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* Initialise `bare` and push `checkout`'s HEAD into it under each of `branches`. Returns the commit served.
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*/
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export function carry(checkout: string, bare: string, branches: string[] = ["main"]): string {
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execFileSync("git", ["init", "-q", "--bare", bare]);
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// No collection after the push: one run in the background rewrites the objects while they are carried.
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execFileSync("git", ["-C", bare, "config", "receive.autogc", "false"]);
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// The lab's checkouts are shallow, and a bare repository refuses a shallow push without this.
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execFileSync("git", ["-C", bare, "config", "receive.shallowUpdate", "true"]);
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const [first, ...rest] = branches;
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execFileSync("git", ["-C", checkout, "push", "-q", "--force", bare, `HEAD:refs/heads/${first}`], { stdio: "pipe" });
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const head = execFileSync("git", ["-C", checkout, "rev-parse", "HEAD"], { encoding: "utf8" }).trim();
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// The other branches are set in the bare repository itself: a shallow push of several refs at once has
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// receive-pack fail every ref after the first ("remote failed to report status").
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for (const branch of rest) execFileSync("git", ["-C", bare, "update-ref", `refs/heads/${branch}`, head]);
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return head;
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}
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