Move packages/apps back

packages/metamigo-db/helpers.ts

@@ -0,0 +1,67 @@
+import process from "process";
+import { existsSync } from "fs";
+import { exec } from "child_process";
+import type { IAppConfig } from "config";
+
+/**
+ * We use graphile-migrate for managing database migrations.
+ *
+ * However we also use convict as the sole source of truth for our app's configuration. We do not want to have to configure
+ * separate env files or config files for graphile-migrate and yet again others for convict.
+ *
+ * So we wrap the graphile-migrate cli tool here. We parse our convict config, set necessary env vars, and then shell out to
+ * graphile-migrate.
+ *
+ * Commander eats all args starting with --, so you must use the -- escape to indicate the arguments have finished
+ *
+ * Example:
+ *      ./cli db -- --help        // will show graphile migrate help
+ *      ./cli db -- watch         // will watch the current sql for changes
+ *      ./cli db -- watch --once  // will apply the current sql once
+ */
+export const migrateWrapper = async (
+  commands: string[],
+  config: IAppConfig,
+  silent = false
+): Promise<void> => {
+  const env = {
+    DATABASE_URL: config.db.connection,
+    SHADOW_DATABASE_URL: config.dev.shadowConnection,
+    ROOT_DATABASE_URL: config.dev.rootConnection,
+    DATABASE_NAME: config.db.name,
+    DATABASE_OWNER: config.db.owner,
+    DATABASE_AUTHENTICATOR: config.postgraphile.auth,
+    DATABASE_VISITOR: config.postgraphile.visitor,
+  };
+  const cmd = `npx --no-install graphile-migrate ${commands.join(" ")}`;
+  const dbDir = `../../db`;
+  const gmrc = `${dbDir}/.gmrc`;
+  if (!existsSync(gmrc)) {
+    throw new Error(`graphile migrate config not found at ${gmrc}`);
+  }
+
+  if (!silent) console.log("executing:", cmd);
+
+  return new Promise((resolve, reject) => {
+    const proc = exec(cmd, {
+      env: { ...process.env, ...env },
+      cwd: dbDir,
+    });
+
+    proc.stdout.on("data", (data) => {
+      if (!silent) console.log("MIGRATE:", data);
+    });
+
+    proc.stderr.on("data", (data) => {
+      console.error("MIGRATE", data);
+    });
+    proc.on("close", (code) => {
+      if (code !== 0) {
+        reject(new Error(`graphile-migrate exited with code ${code}`));
+        return;
+      }
+
+      resolve();
+    });
+  });
+};