61 lines
1.6 KiB
Plaintext
61 lines
1.6 KiB
Plaintext
import fs from "fs-extra";
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import path from "path";
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import prettier from "prettier";
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import humanId from "human-id";
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import { Changeset } from "@changesets/types";
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function getPrettierInstance(cwd: string): typeof prettier {
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try {
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return require(require.resolve("prettier", { paths: [cwd] }));
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} catch (err) {
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if (!err || (err as any).code !== "MODULE_NOT_FOUND") {
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throw err;
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}
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return prettier;
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}
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}
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async function writeChangeset(
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changeset: Changeset,
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cwd: string
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): Promise<string> {
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const { summary, releases } = changeset;
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const changesetBase = path.resolve(cwd, ".changeset");
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// Worth understanding that the ID merely needs to be a unique hash to avoid git conflicts
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// experimenting with human readable ids to make finding changesets easier
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const changesetID = humanId({
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separator: "-",
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capitalize: false,
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});
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const prettierInstance = getPrettierInstance(cwd);
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const prettierConfig = await prettierInstance.resolveConfig(cwd);
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const newChangesetPath = path.resolve(changesetBase, `${changesetID}.md`);
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// NOTE: The quotation marks in here are really important even though they are
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// not spec for yaml. This is because package names can contain special
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// characters that will otherwise break the parsing step
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const changesetContents = `---
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${releases.map((release) => `"${release.name}": ${release.type}`).join("\n")}
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---
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${summary}
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`;
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await fs.outputFile(
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newChangesetPath,
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// Prettier v3 returns a promise
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await prettierInstance.format(changesetContents, {
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...prettierConfig,
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parser: "markdown",
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})
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);
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return changesetID;
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}
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export default writeChangeset;
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