feat: inline SQL scripts for bundlers (#345)

.eslintignore

@@ -1,2 +1,3 @@
 node_modules
 dist
+src/generated

package.json

@@ -4,8 +4,9 @@
   "description": "Job queue for PostgreSQL",
   "main": "dist/index.js",
   "scripts": {
-    "prepack": "rm -Rf dist && tsc && chmod +x dist/cli.js",
-    "watch": "mkdir -p dist && touch dist/cli.js && chmod +x dist/cli.js && tsc --watch",
+    "build:sql": "node scripts/buildSqlModule.js",
+    "prepack": "rm -Rf dist && npm run build:sql && tsc && chmod +x dist/cli.js",
+    "watch": "mkdir -p dist && touch dist/cli.js && chmod +x dist/cli.js && npm run build:sql && tsc --watch",
     "lint": "yarn prettier:check && eslint --ext .js,.jsx,.ts,.tsx,.graphql .",
     "lint:fix": "eslint --ext .js,.jsx,.ts,.tsx,.graphql . --fix; prettier --ignore-path .eslintignore --write '**/*.{js,jsx,ts,tsx,graphql,md,json}'",
     "prettier:check": "prettier --ignore-path .eslintignore --check '**/*.{js,jsx,ts,tsx,graphql,md,json}'",

scripts/buildSqlModule.js

@@ -0,0 +1,35 @@
+const path = require("path");
+const fs = require("fs");
+
+const sqlDir = path.join(__dirname, "../sql");
+const sqlFiles = fs
+  .readdirSync(sqlDir)
+  .filter((file) => /^[0-9]{6}\.sql$/.test(file))
+  .sort();
+
+/**
+ * Turns `str` into a String.raw expression, safely escaping backticks and
+ * placeholder strings.
+ */
+function escape(str) {
+  return (
+    "String.raw`\\\n" +
+    str
+      .replace(/`/g, '` + "`" + String.raw`')
+      .replace(/\$\{/g, "$$` + String.raw`{") +
+    "`"
+  );
+}
+
+const sqlModule =
+  "/* This file is auto-generated by `npm run build:sql`; DO NOT EDIT */\n" +
+  "// prettier-ignore\n" +
+  "export const migrations = {\n" +
+  sqlFiles
+    .map((file) => {
+      const sql = fs.readFileSync(path.join(sqlDir, file), "utf8");
+      return `  ${JSON.stringify(file)}: ${escape(sql)},`;
+    })
+    .join("\n") + "\n};\n";
+
+fs.writeFileSync(path.join(__dirname, "../src/generated/sql.ts"), sqlModule);