| 1 | // Builds the extension and packs it as a .vsix, the file VS Code, Cursor, Windsurf and VSCodium install. |
| 2 | // |
| 3 | // node apps/vscode/scripts/package.mjs [--out dir] (writes <dir>/diffinery-<version>.vsix, default apps/vscode/dist) |
| 4 | // |
| 5 | // apps/diffinery/scripts/build-docs.mjs calls packageExtension() too, so the Worker serves the build at |
| 6 | // /-/vscode/diffinery.vsix. The .vsix has the layout `vsce package` writes (extension.vsixmanifest, |
| 7 | // [Content_Types].xml, extension/…), so it can also go to the Visual Studio Marketplace and Open VSX |
| 8 | // unchanged. Packing it here keeps @vscode/vsce and its dependencies out of every CI install. File dates |
| 9 | // are fixed, so the same sources always give the same bytes (and the same published digest). |
| 10 | import { build } from "esbuild"; |
| 11 | import { readFile, mkdir, writeFile } from "node:fs/promises"; |
| 12 | import path from "node:path"; |
| 13 | import { fileURLToPath } from "node:url"; |
| 14 | import { deflateRawSync } from "node:zlib"; |
| 15 | |
| 16 | const ROOT = path.resolve(path.dirname(fileURLToPath(import.meta.url)), ".."); |
| 17 | const EXTENSION_NAME = "diffinery"; |
| 18 | |
| 19 | const xml = (s) => String(s).replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">").replace(/"/g, """); |
| 20 | |
| 21 | /** The manifest as installed: the workspace package's fields, named for the editor (publisher.name = codician.diffinery). */ |
| 22 | function manifestFor(pkg) { |
| 23 | const { scripts: _s, devDependencies: _d, dependencies: _deps, private: _p, ...rest } = pkg; |
| 24 | return { ...rest, name: EXTENSION_NAME }; |
| 25 | } |
| 26 | |
| 27 | function vsixManifest(m) { |
| 28 | const props = [ |
| 29 | ["Microsoft.VisualStudio.Code.Engine", m.engines.vscode], |
| 30 | ["Microsoft.VisualStudio.Code.ExtensionDependencies", (m.extensionDependencies ?? []).join(",")], |
| 31 | ["Microsoft.VisualStudio.Code.ExtensionPack", ""], |
| 32 | ["Microsoft.VisualStudio.Code.ExtensionKind", (m.extensionKind ?? ["workspace"]).join(",")], |
| 33 | ["Microsoft.VisualStudio.Code.LocalizedLanguages", ""], |
| 34 | ["Microsoft.VisualStudio.Services.Links.Source", m.repository.url], |
| 35 | ["Microsoft.VisualStudio.Services.Links.Getstarted", m.repository.url], |
| 36 | ["Microsoft.VisualStudio.Services.Links.Support", m.bugs.url], |
| 37 | ["Microsoft.VisualStudio.Services.Links.Learn", m.homepage], |
| 38 | ["Microsoft.VisualStudio.Services.Branding.Color", m.galleryBanner.color], |
| 39 | ["Microsoft.VisualStudio.Services.Branding.Theme", m.galleryBanner.theme], |
| 40 | ["Microsoft.VisualStudio.Services.GitHubFlavoredMarkdown", "true"], |
| 41 | ["Microsoft.VisualStudio.Services.Content.Pricing", "Free"], |
| 42 | ]; |
| 43 | return `<?xml version="1.0" encoding="utf-8"?> |
| 44 | <PackageManifest Version="2.0.0" xmlns="http://schemas.microsoft.com/developer/vsx-schema/2011" xmlns:d="http://schemas.microsoft.com/developer/vsx-schema-design/2011"> |
| 45 | <Metadata> |
| 46 | <Identity Language="en-US" Id="${xml(m.name)}" Version="${xml(m.version)}" Publisher="${xml(m.publisher)}" /> |
| 47 | <DisplayName>${xml(m.displayName)}</DisplayName> |
| 48 | <Description xml:space="preserve">${xml(m.description)}</Description> |
| 49 | <Tags>${xml((m.keywords ?? []).join(","))}</Tags> |
| 50 | <Categories>${xml(m.categories.join(","))}</Categories> |
| 51 | <GalleryFlags>Public</GalleryFlags> |
| 52 | <Properties> |
| 53 | ${props.map(([k, v]) => ` <Property Id="${k}" Value="${xml(v)}" />`).join("\n")} |
| 54 | </Properties> |
| 55 | <Icon>extension/${xml(m.icon)}</Icon> |
| 56 | </Metadata> |
| 57 | <Installation> |
| 58 | <InstallationTarget Id="Microsoft.VisualStudio.Code"/> |
| 59 | </Installation> |
| 60 | <Dependencies/> |
| 61 | <Assets> |
| 62 | <Asset Type="Microsoft.VisualStudio.Code.Manifest" Path="extension/package.json" Addressable="true" /> |
| 63 | <Asset Type="Microsoft.VisualStudio.Services.Content.Details" Path="extension/readme.md" Addressable="true" /> |
| 64 | <Asset Type="Microsoft.VisualStudio.Services.Content.Changelog" Path="extension/changelog.md" Addressable="true" /> |
| 65 | <Asset Type="Microsoft.VisualStudio.Services.Icons.Default" Path="extension/${xml(m.icon)}" Addressable="true" /> |
| 66 | </Assets> |
| 67 | </PackageManifest> |
| 68 | `; |
| 69 | } |
| 70 | |
| 71 | function contentTypes(names) { |
| 72 | const types = { ".json": "application/json", ".js": "application/javascript", ".md": "text/markdown", ".png": "image/png", ".woff": "font/woff", ".vsixmanifest": "text/xml" }; |
| 73 | const exts = [...new Set(names.map((n) => path.extname(n).toLowerCase()).filter((e) => e && types[e]))].sort(); |
| 74 | return `<?xml version="1.0" encoding="utf-8"?> |
| 75 | <Types xmlns="http://schemas.openxmlformats.org/package/2006/content-types">${exts.map((e) => `<Default Extension="${e}" ContentType="${types[e]}"/>`).join("")}</Types> |
| 76 | `; |
| 77 | } |
| 78 | |
| 79 | // ---------------------------------------------------------------- a small, deterministic zip writer |
| 80 | |
| 81 | const CRC_TABLE = (() => { |
| 82 | const t = new Uint32Array(256); |
| 83 | for (let n = 0; n < 256; n++) { |
| 84 | let c = n; |
| 85 | for (let k = 0; k < 8; k++) c = c & 1 ? 0xedb88320 ^ (c >>> 1) : c >>> 1; |
| 86 | t[n] = c >>> 0; |
| 87 | } |
| 88 | return t; |
| 89 | })(); |
| 90 | function crc32(buf) { |
| 91 | let c = 0xffffffff; |
| 92 | for (const b of buf) c = CRC_TABLE[(c ^ b) & 0xff] ^ (c >>> 8); |
| 93 | return (c ^ 0xffffffff) >>> 0; |
| 94 | } |
| 95 | // 2026-01-01 00:00 in MS-DOS date/time. |
| 96 | const DOS_TIME = 0; |
| 97 | const DOS_DATE = ((2026 - 1980) << 9) | (1 << 5) | 1; |
| 98 | |
| 99 | function zip(entries) { |
| 100 | const locals = []; |
| 101 | const central = []; |
| 102 | let offset = 0; |
| 103 | for (const { name, data } of entries) { |
| 104 | const nameBuf = Buffer.from(name, "utf8"); |
| 105 | const raw = Buffer.from(data); |
| 106 | const deflated = deflateRawSync(raw, { level: 9 }); |
| 107 | const stored = deflated.length >= raw.length; |
| 108 | const body = stored ? raw : deflated; |
| 109 | const crc = crc32(raw); |
| 110 | const local = Buffer.alloc(30); |
| 111 | local.writeUInt32LE(0x04034b50, 0); |
| 112 | local.writeUInt16LE(20, 4); |
| 113 | local.writeUInt16LE(0x0800, 6); // UTF-8 names |
| 114 | local.writeUInt16LE(stored ? 0 : 8, 8); |
| 115 | local.writeUInt16LE(DOS_TIME, 10); |
| 116 | local.writeUInt16LE(DOS_DATE, 12); |
| 117 | local.writeUInt32LE(crc, 14); |
| 118 | local.writeUInt32LE(body.length, 18); |
| 119 | local.writeUInt32LE(raw.length, 22); |
| 120 | local.writeUInt16LE(nameBuf.length, 26); |
| 121 | local.writeUInt16LE(0, 28); |
| 122 | locals.push(local, nameBuf, body); |
| 123 | const cen = Buffer.alloc(46); |
| 124 | cen.writeUInt32LE(0x02014b50, 0); |
| 125 | cen.writeUInt16LE(20, 4); |
| 126 | cen.writeUInt16LE(20, 6); |
| 127 | cen.writeUInt16LE(0x0800, 8); |
| 128 | cen.writeUInt16LE(stored ? 0 : 8, 10); |
| 129 | cen.writeUInt16LE(DOS_TIME, 12); |
| 130 | cen.writeUInt16LE(DOS_DATE, 14); |
| 131 | cen.writeUInt32LE(crc, 16); |
| 132 | cen.writeUInt32LE(body.length, 20); |
| 133 | cen.writeUInt32LE(raw.length, 24); |
| 134 | cen.writeUInt16LE(nameBuf.length, 28); |
| 135 | cen.writeUInt32LE(offset, 42); |
| 136 | central.push(cen, nameBuf); |
| 137 | offset += 30 + nameBuf.length + body.length; |
| 138 | } |
| 139 | const cenSize = central.reduce((n, b) => n + b.length, 0); |
| 140 | const end = Buffer.alloc(22); |
| 141 | end.writeUInt32LE(0x06054b50, 0); |
| 142 | end.writeUInt16LE(entries.length, 8); |
| 143 | end.writeUInt16LE(entries.length, 10); |
| 144 | end.writeUInt32LE(cenSize, 12); |
| 145 | end.writeUInt32LE(offset, 16); |
| 146 | return Buffer.concat([...locals, ...central, end]); |
| 147 | } |
| 148 | |
| 149 | /** Builds and packs the extension. Returns its version and the .vsix bytes. */ |
| 150 | export async function packageExtension() { |
| 151 | const pkg = JSON.parse(await readFile(path.join(ROOT, "package.json"), "utf8")); |
| 152 | const manifest = manifestFor(pkg); |
| 153 | const bundle = await build({ |
| 154 | entryPoints: [path.join(ROOT, "src/extension.ts")], |
| 155 | bundle: true, |
| 156 | minify: true, |
| 157 | platform: "node", |
| 158 | target: "node18", |
| 159 | format: "cjs", |
| 160 | external: ["vscode"], |
| 161 | legalComments: "none", |
| 162 | write: false, |
| 163 | logLevel: "error", |
| 164 | }); |
| 165 | const files = [ |
| 166 | ["extension/package.json", JSON.stringify(manifest, null, 2)], |
| 167 | ["extension/readme.md", await readFile(path.join(ROOT, "README.md"))], |
| 168 | ["extension/changelog.md", await readFile(path.join(ROOT, "CHANGELOG.md"))], |
| 169 | ["extension/dist/extension.js", bundle.outputFiles[0].contents], |
| 170 | [`extension/${manifest.icon}`, await readFile(path.join(ROOT, manifest.icon))], |
| 171 | ["extension/media/diffinery-icons.woff", await readFile(path.join(ROOT, "media/diffinery-icons.woff"))], |
| 172 | ]; |
| 173 | const entries = [ |
| 174 | { name: "extension.vsixmanifest", data: vsixManifest(manifest) }, |
| 175 | { name: "[Content_Types].xml", data: contentTypes(["extension.vsixmanifest", ...files.map(([n]) => n)]) }, |
| 176 | ...files.map(([name, data]) => ({ name, data })), |
| 177 | ]; |
| 178 | return { version: manifest.version, vsix: zip(entries) }; |
| 179 | } |
| 180 | |
| 181 | if (process.argv[1] && path.resolve(process.argv[1]) === fileURLToPath(import.meta.url)) { |
| 182 | const i = process.argv.indexOf("--out"); |
| 183 | const out = i > 0 ? path.resolve(process.argv[i + 1]) : path.join(ROOT, "dist"); |
| 184 | const { version, vsix } = await packageExtension(); |
| 185 | await mkdir(out, { recursive: true }); |
| 186 | const file = path.join(out, `${EXTENSION_NAME}-${version}.vsix`); |
| 187 | await writeFile(file, vsix); |
| 188 | console.log(`vscode: ${path.relative(process.cwd(), file)} (${(vsix.length / 1024).toFixed(0)} KB)`); |
| 189 | } |