dangerfile.js

async function checkDocs() {
    if (danger.github.pr.title.startsWith("feat:")) {
        message(
            'Do not forget to update <a href="https://github.com/getsentry/sentry-docs">Sentry-docs</a> with your feature once the pull request gets approved.'
        );
    }
}

async function checkChangelog() {
    const changelogFile = "CHANGELOG.md";

    // Check if skipped
    const skipChangelog =
        danger.github && (danger.github.pr.body + "").includes("#skip-changelog");

    if (skipChangelog) {
        return;
    }

    // Check if current PR has an entry in changelog
    const changelogContents = await danger.github.utils.fileContents(
        changelogFile
    );

    const hasChangelogEntry = RegExp(`#${danger.github.pr.number}\\b`).test(
        changelogContents
    );

    if (hasChangelogEntry) {
        return;
    }

    // Report missing changelog entry
    fail(
        "Please consider adding a changelog entry for the next release.",
        changelogFile
    );

    const prTitleFormatted = danger.github.pr.title
        .split(": ")
        .slice(-1)[0]
        .trim()
        .replace(/\.+$/, "");

    markdown(
        `
### Instructions and example for changelog

Please add an entry to \`CHANGELOG.md\` to the "Unreleased" section. Make sure the entry includes this PR's number.

Example:

\`\`\`markdown
## Unreleased

- ${prTitleFormatted} ([#${danger.github.pr.number}](${danger.github.pr.html_url}))
\`\`\`

If none of the above apply, you can opt out of this check by adding \`#skip-changelog\` to the PR description.`.trim()
    );
}

async function checkAll() {
    // See: https://spectrum.chat/danger/javascript/support-for-github-draft-prs~82948576-ce84-40e7-a043-7675e5bf5690
    const isDraft = danger.github.pr.mergeable_state === "draft";

    if (isDraft) {
        return;
    }

    await checkDocs();
    await checkChangelog();
}

schedule(checkAll);