updates for single source of truth

Author: pyramation

package.json

@@ -34,9 +34,10 @@
   "devDependencies": {
     "@types/node": "^20.0.0",
     "copyfiles": "^2.4.1",
+    "glob": "11.0.3",
+    "pg-proto-parser": "^1.28.2",
     "rimraf": "^5.0.0",
     "ts-node": "^10.9.1",
-    "typescript": "^5.3.3",
-    "pg-proto-parser": "^1.28.2"
+    "typescript": "^5.3.3"
   }
-} 
+}

scripts/copy-templates.js

@@ -2,6 +2,7 @@
 
 const fs = require('fs');
 const path = require('path');
+const glob = require('glob');
 
 const HEADER = `/**
  * DO NOT MODIFY MANUALLY — this is generated from the templates dir
@@ -19,29 +20,39 @@ const MAKEFILE_HEADER = `# DO NOT MODIFY MANUALLY — this is generated from the
 
 `;
 
-// Version-specific configurations
-const VERSION_CONFIGS = {
-  '13': {
-    tag: '13-2.2.0',
-    hasEmscriptenPatch: true
-  },
-  '14': {
-    tag: '14-3.0.0',
-    hasEmscriptenPatch: false
-  },
-  '15': {
-    tag: '15-4.2.4',
-    hasEmscriptenPatch: false
-  },
-  '16': {
-    tag: '16-5.2.0',
-    hasEmscriptenPatch: false
-  },
-  '17': {
-    tag: '17-6.1.0',
-    hasEmscriptenPatch: false
-  }
-};
+// Load version configurations from package.json files
+function loadVersionConfigs() {
+  const configs = {};
+  const packageFiles = glob.sync('versions/*/package.json');
+  
+  console.log(`Found ${packageFiles.length} package.json files\n`);
+  
+  packageFiles.forEach(packageFile => {
+    try {
+      const packageData = JSON.parse(fs.readFileSync(packageFile, 'utf8'));
+      const version = packageData['x-publish']?.pgVersion;
+      const libpgQueryTag = packageData['x-publish']?.libpgQueryTag;
+      
+      if (version && libpgQueryTag) {
+        configs[version] = {
+          tag: libpgQueryTag,
+          hasEmscriptenPatch: version === '13' // Only version 13 needs the patch
+        };
+        console.log(`  Version ${version}: tag ${libpgQueryTag}`);
+      } else {
+        console.warn(`  Warning: Missing x-publish data in ${packageFile}`);
+      }
+    } catch (error) {
+      console.error(`  Error reading ${packageFile}: ${error.message}`);
+    }
+  });
+  
+  console.log(''); // Empty line for readability
+  return configs;
+}
+
+// Load configurations
+const VERSION_CONFIGS = loadVersionConfigs();
 
 // Files to copy from templates
 const TEMPLATE_FILES = [

templates/README.md

@@ -33,13 +33,21 @@ The following placeholders are used in template files:
 
 ## Version-Specific Configurations
 
-The `scripts/copy-templates.js` script contains version-specific configurations:
+The `scripts/copy-templates.js` script automatically reads version-specific configurations from each version's `package.json` file. It looks for the `x-publish` section:
+
+```json
+"x-publish": {
+  "publishName": "libpg-query",
+  "pgVersion": "15",
+  "distTag": "pg15",
+  "libpgQueryTag": "15-4.2.4"
+}
+```
 
-- **Version 13**: Uses tag `13-2.2.0` and requires emscripten patch
-- **Version 14**: Uses tag `14-3.0.0`
-- **Version 15**: Uses tag `15-4.2.4`
-- **Version 16**: Uses tag `16-5.2.0`
-- **Version 17**: Uses tag `17-6.1.0`
+The script uses:
+- `pgVersion` to identify the PostgreSQL version
+- `libpgQueryTag` for the {{VERSION_TAG}} placeholder replacement
+- Version 13 automatically gets the emscripten patch applied
 
 ## Important Notes