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| 1 | +/** |
| 2 | + * Migration Generator Script for edge-worker |
| 3 | + * |
| 4 | + * Generates TypeScript modules from SQL migration files at build time. |
| 5 | + * This allows static imports of migration content that work across all environments |
| 6 | + * (local dev, JSR, npm, Supabase Edge Functions). |
| 7 | + * |
| 8 | + * The migrations are sourced from the core package and bundled directly into |
| 9 | + * edge-worker, making it fully self-contained without cross-package imports. |
| 10 | + * |
| 11 | + * Usage: tsx scripts/generate-migrations.ts |
| 12 | + */ |
| 13 | + |
| 14 | +import * as fs from 'node:fs'; |
| 15 | +import * as path from 'node:path'; |
| 16 | + |
| 17 | +const MIGRATIONS_DIR = '../core/supabase/migrations'; |
| 18 | +const OUTPUT_DIR = 'src/_generated/migrations'; |
| 19 | +const GENERATED_DIR = `${OUTPUT_DIR}/_generated`; |
| 20 | +const INDEX_FILE = `${OUTPUT_DIR}/index.ts`; |
| 21 | +const TYPES_FILE = `${OUTPUT_DIR}/types.ts`; |
| 22 | + |
| 23 | +interface MigrationFile { |
| 24 | + timestamp: string; |
| 25 | + filename: string; |
| 26 | + content: string; |
| 27 | +} |
| 28 | + |
| 29 | +function escapeBackticks(str: string): string { |
| 30 | + // Escape backticks and ${} template expressions |
| 31 | + return str.replace(/\\/g, '\\\\').replace(/`/g, '\\`').replace(/\$\{/g, '\\${'); |
| 32 | +} |
| 33 | + |
| 34 | +function getMigrationFiles(): MigrationFile[] { |
| 35 | + const files = fs.readdirSync(MIGRATIONS_DIR); |
| 36 | + const migrations: MigrationFile[] = []; |
| 37 | + |
| 38 | + for (const filename of files) { |
| 39 | + // Skip non-SQL files and atlas files |
| 40 | + if (!filename.endsWith('.sql') || filename.startsWith('atlas')) { |
| 41 | + continue; |
| 42 | + } |
| 43 | + |
| 44 | + // Extract 14-digit timestamp from filename (e.g., "20250429164909_...") |
| 45 | + const match = filename.match(/^(\d{14})_/); |
| 46 | + if (!match) { |
| 47 | + console.warn(`Skipping ${filename}: no valid timestamp found`); |
| 48 | + continue; |
| 49 | + } |
| 50 | + |
| 51 | + const content = fs.readFileSync(path.join(MIGRATIONS_DIR, filename), 'utf-8'); |
| 52 | + migrations.push({ |
| 53 | + timestamp: match[1], |
| 54 | + filename, |
| 55 | + content, |
| 56 | + }); |
| 57 | + } |
| 58 | + |
| 59 | + // Sort by timestamp (ascending) |
| 60 | + migrations.sort((a, b) => a.timestamp.localeCompare(b.timestamp)); |
| 61 | + |
| 62 | + return migrations; |
| 63 | +} |
| 64 | + |
| 65 | +function generateMigrationModule(migration: MigrationFile): string { |
| 66 | + const escapedContent = escapeBackticks(migration.content); |
| 67 | + return `import type { Migration } from '../types.ts'; |
| 68 | +
|
| 69 | +export const migration: Migration = { |
| 70 | + timestamp: '${migration.timestamp}', |
| 71 | + filename: '${migration.filename}', |
| 72 | + content: \`${escapedContent}\`, |
| 73 | +}; |
| 74 | +`; |
| 75 | +} |
| 76 | + |
| 77 | +function generateTypesFile(): string { |
| 78 | + return `/** |
| 79 | + * Migration types for edge-worker |
| 80 | + * |
| 81 | + * Auto-generated by scripts/generate-migrations.ts |
| 82 | + * Do not edit manually. |
| 83 | + */ |
| 84 | +
|
| 85 | +/** |
| 86 | + * Represents a migration file loaded from @pgflow/core |
| 87 | + */ |
| 88 | +export interface Migration { |
| 89 | + /** 14-digit timestamp from filename, e.g., "20250429164909" (PK) */ |
| 90 | + timestamp: string; |
| 91 | + /** Full filename, e.g., "20250429164909_pgflow_initial.sql" */ |
| 92 | + filename: string; |
| 93 | + /** Full SQL content of the migration */ |
| 94 | + content: string; |
| 95 | +} |
| 96 | +`; |
| 97 | +} |
| 98 | + |
| 99 | +function generateIndexFile(migrations: MigrationFile[]): string { |
| 100 | + const imports = migrations |
| 101 | + .map((m) => `import { migration as m_${m.timestamp} } from './_generated/m_${m.timestamp}.ts';`) |
| 102 | + .join('\n'); |
| 103 | + |
| 104 | + const arrayItems = migrations.map((m) => ` m_${m.timestamp},`).join('\n'); |
| 105 | + |
| 106 | + return `/** |
| 107 | + * Auto-generated migration exports for edge-worker |
| 108 | + * |
| 109 | + * This file is regenerated by scripts/generate-migrations.ts |
| 110 | + * Do not edit manually. |
| 111 | + */ |
| 112 | +
|
| 113 | +import type { Migration } from './types.ts'; |
| 114 | +${imports} |
| 115 | +
|
| 116 | +export const migrations: Migration[] = [ |
| 117 | +${arrayItems} |
| 118 | +]; |
| 119 | +
|
| 120 | +export function getMigrations(): Migration[] { |
| 121 | + return migrations; |
| 122 | +} |
| 123 | +
|
| 124 | +export type { Migration }; |
| 125 | +`; |
| 126 | +} |
| 127 | + |
| 128 | +function main(): void { |
| 129 | + console.log('Generating migration modules for edge-worker...'); |
| 130 | + |
| 131 | + // Ensure output directories exist |
| 132 | + fs.mkdirSync(GENERATED_DIR, { recursive: true }); |
| 133 | + |
| 134 | + // Clean existing generated migration files |
| 135 | + if (fs.existsSync(GENERATED_DIR)) { |
| 136 | + const existingFiles = fs.readdirSync(GENERATED_DIR); |
| 137 | + for (const file of existingFiles) { |
| 138 | + fs.unlinkSync(path.join(GENERATED_DIR, file)); |
| 139 | + } |
| 140 | + } |
| 141 | + |
| 142 | + // Get and process migrations |
| 143 | + const migrations = getMigrationFiles(); |
| 144 | + console.log(`Found ${migrations.length} migrations`); |
| 145 | + |
| 146 | + // Generate types file |
| 147 | + const typesContent = generateTypesFile(); |
| 148 | + fs.writeFileSync(TYPES_FILE, typesContent); |
| 149 | + console.log(`Generated ${TYPES_FILE}`); |
| 150 | + |
| 151 | + // Generate individual module files |
| 152 | + for (const migration of migrations) { |
| 153 | + const moduleContent = generateMigrationModule(migration); |
| 154 | + const outputPath = path.join(GENERATED_DIR, `m_${migration.timestamp}.ts`); |
| 155 | + fs.writeFileSync(outputPath, moduleContent); |
| 156 | + console.log(` Generated ${path.basename(outputPath)}`); |
| 157 | + } |
| 158 | + |
| 159 | + // Generate index file |
| 160 | + const indexContent = generateIndexFile(migrations); |
| 161 | + fs.writeFileSync(INDEX_FILE, indexContent); |
| 162 | + console.log(`Generated ${INDEX_FILE}`); |
| 163 | + |
| 164 | + console.log('Done!'); |
| 165 | +} |
| 166 | + |
| 167 | +main(); |
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