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| 1 | +// The Android half of the mobile preview comment. The android job writes the fingerprint and |
| 2 | +// the update; the android-build job adds the client's install link a few minutes later. Each |
| 3 | +// run merges what it knows into the state kept in the comment's first line. |
| 4 | +const MARKER = "mobile-preview-android"; |
| 5 | +const PROJECT_ID = "d763fcb8-d37c-41ea-a773-b54a0ab4a454"; |
| 6 | +const APP_SCHEME = "t3-code"; |
| 7 | + |
| 8 | +function readState(body) { |
| 9 | + const match = new RegExp(`^<!-- ${MARKER} (\\{.*\\}) -->`).exec(body ?? ""); |
| 10 | + if (!match) return null; |
| 11 | + try { |
| 12 | + const state = JSON.parse(match[1]); |
| 13 | + const text = (value) => (typeof value === "string" ? value : ""); |
| 14 | + return { |
| 15 | + fingerprint: text(state.fingerprint), |
| 16 | + client: text(state.client), |
| 17 | + group: text(state.group), |
| 18 | + }; |
| 19 | + } catch { |
| 20 | + return null; |
| 21 | + } |
| 22 | +} |
| 23 | + |
| 24 | +/** |
| 25 | + * New values win; a new fingerprint drops the old fingerprint's client. A build that finishes |
| 26 | + * after the PR moved to another fingerprint changes nothing: its client cannot run the update |
| 27 | + * the comment now shows. |
| 28 | + */ |
| 29 | +function mergeState(previous, next) { |
| 30 | + const buildOnly = Boolean(next.client) && !next.group; |
| 31 | + if ( |
| 32 | + buildOnly && |
| 33 | + previous?.fingerprint && |
| 34 | + next.fingerprint && |
| 35 | + previous.fingerprint !== next.fingerprint |
| 36 | + ) { |
| 37 | + return previous; |
| 38 | + } |
| 39 | + const fingerprint = next.fingerprint || previous?.fingerprint || ""; |
| 40 | + const sameFingerprint = !previous?.fingerprint || previous.fingerprint === fingerprint; |
| 41 | + return { |
| 42 | + fingerprint, |
| 43 | + client: next.client || (sameFingerprint ? (previous?.client ?? "") : ""), |
| 44 | + group: next.group || previous?.group || "", |
| 45 | + }; |
| 46 | +} |
| 47 | + |
| 48 | +function render(state, runUrl) { |
| 49 | + const qr = `https://qr.expo.dev/eas-update?appScheme=${APP_SCHEME}&projectId=${PROJECT_ID}&groupId=${state.group}`; |
| 50 | + const rows = [ |
| 51 | + `<!-- ${MARKER} ${JSON.stringify(state)} -->`, |
| 52 | + "🤖 Android preview", |
| 53 | + "", |
| 54 | + " | 🤖 Android", |
| 55 | + "--- | ---", |
| 56 | + `Fingerprint | ${state.fingerprint || "n/a"}`, |
| 57 | + `Dev client | ${state.client ? `[Install](${state.client})` : `Building on Blacksmith ([run](${runUrl})); this comment gets the install link when it finishes`}`, |
| 58 | + ]; |
| 59 | + if (state.group) { |
| 60 | + rows.push( |
| 61 | + `Update Details | [Update Permalink](https://expo.dev/projects/${PROJECT_ID}/updates/${state.group})`, |
| 62 | + `Update QR | <a href="${qr}"><img src="${qr}" width="250px" height="250px" /></a>`, |
| 63 | + ); |
| 64 | + } |
| 65 | + return rows.join("\n"); |
| 66 | +} |
| 67 | + |
| 68 | +async function github(path, init = {}) { |
| 69 | + const response = await fetch(`https://api.github.com${path}`, { |
| 70 | + ...init, |
| 71 | + headers: { |
| 72 | + authorization: `Bearer ${process.env.GH_TOKEN}`, |
| 73 | + accept: "application/vnd.github+json", |
| 74 | + "content-type": "application/json", |
| 75 | + ...init.headers, |
| 76 | + }, |
| 77 | + }); |
| 78 | + if (!response.ok) { |
| 79 | + throw new Error( |
| 80 | + `GitHub ${init.method ?? "GET"} ${path}: ${response.status} ${await response.text()}`, |
| 81 | + ); |
| 82 | + } |
| 83 | + return response.json(); |
| 84 | +} |
| 85 | + |
| 86 | +async function main() { |
| 87 | + const repository = process.env.GITHUB_REPOSITORY; |
| 88 | + const pr = process.env.PR; |
| 89 | + if (!repository || !pr || !process.env.GH_TOKEN) { |
| 90 | + throw new Error("GITHUB_REPOSITORY, PR and GH_TOKEN are required."); |
| 91 | + } |
| 92 | + const runUrl = `${process.env.GITHUB_SERVER_URL}/${repository}/actions/runs/${process.env.GITHUB_RUN_ID}`; |
| 93 | + let existing = null; |
| 94 | + for (let page = 1; existing === null; page++) { |
| 95 | + const comments = await github( |
| 96 | + `/repos/${repository}/issues/${pr}/comments?per_page=100&page=${page}`, |
| 97 | + ); |
| 98 | + // Only this workflow's own comment: anyone can post the marker, and nobody else's is editable. |
| 99 | + existing = |
| 100 | + comments.find( |
| 101 | + (comment) => |
| 102 | + comment.user?.login === "github-actions[bot]" && readState(comment.body) !== null, |
| 103 | + ) ?? null; |
| 104 | + if (comments.length < 100) break; |
| 105 | + } |
| 106 | + const state = mergeState(readState(existing?.body), { |
| 107 | + fingerprint: process.env.FINGERPRINT ?? "", |
| 108 | + client: process.env.CLIENT ?? "", |
| 109 | + group: process.env.GROUP ?? "", |
| 110 | + }); |
| 111 | + const body = JSON.stringify({ body: render(state, runUrl) }); |
| 112 | + if (existing) { |
| 113 | + await github(`/repos/${repository}/issues/comments/${existing.id}`, { method: "PATCH", body }); |
| 114 | + } else { |
| 115 | + await github(`/repos/${repository}/issues/${pr}/comments`, { method: "POST", body }); |
| 116 | + } |
| 117 | +} |
| 118 | + |
| 119 | +if (require.main === module) { |
| 120 | + main().catch((error) => { |
| 121 | + console.error(error); |
| 122 | + process.exitCode = 1; |
| 123 | + }); |
| 124 | +} |
| 125 | + |
| 126 | +module.exports = { mergeState, readState, render }; |
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