From 1e79f06d118fc1fb3d8c6d33f2911bfe3bd5ea4d Mon Sep 17 00:00:00 2001
From: Mark Duckworth <1124037+MarkDuckworth@users.noreply.github.com>
Date: Wed, 15 Oct 2025 12:32:56 -0600
Subject: [PATCH 01/10] dist/firestore/src/global_index.d.ts now includes
 pipelines in namespace 'pipelines'

---
 packages/firestore/rollup.config.js |  2 +-
 packages/firestore/src/global.ts    | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 packages/firestore/src/global.ts

diff --git a/packages/firestore/rollup.config.js b/packages/firestore/rollup.config.js
index c9222f69ab4..6b43183c87c 100644
--- a/packages/firestore/rollup.config.js
+++ b/packages/firestore/rollup.config.js
@@ -214,7 +214,7 @@ const allBuilds = [
     }
   },
   {
-    input: 'dist/firestore/src/index.d.ts',
+    input: 'dist/firestore/src/global.d.ts',
     output: {
       file: 'dist/firestore/src/global_index.d.ts',
       format: 'es'
diff --git a/packages/firestore/src/global.ts b/packages/firestore/src/global.ts
new file mode 100644
index 00000000000..71c8fb86b4c
--- /dev/null
+++ b/packages/firestore/src/global.ts
@@ -0,0 +1,23 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// This file supports a special internal build that includes the entire
+// Firestore classic and pipeline api surface in one bundle.
+
+export * from './api';
+import * as pipelines from './api_pipelines';
+export { pipelines };

From 4cee76e720e50ef20dc33ccc3c1a919aa2e10d9c Mon Sep 17 00:00:00 2001
From: Mark Duckworth <1124037+MarkDuckworth@users.noreply.github.com>
Date: Wed, 15 Oct 2025 14:10:38 -0600
Subject: [PATCH 02/10] Update global.ts

---
 packages/firestore/src/global.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/firestore/src/global.ts b/packages/firestore/src/global.ts
index 71c8fb86b4c..f68d24b5241 100644
--- a/packages/firestore/src/global.ts
+++ b/packages/firestore/src/global.ts
@@ -19,5 +19,5 @@
 // Firestore classic and pipeline api surface in one bundle.
 
 export * from './api';
-import * as pipelines from './api_pipelines';
+import * as pipelines from '../pipelines/pipelines';
 export { pipelines };

From 704d2f743c767df2823caa720518fd3bcdbff943 Mon Sep 17 00:00:00 2001
From: Mark Duckworth <1124037+MarkDuckworth@users.noreply.github.com>
Date: Wed, 15 Oct 2025 16:59:48 -0600
Subject: [PATCH 03/10] Custom replacer plugin to remove declare module block
 from global.d.ts

---
 packages/firestore/rollup.config.js | 33 ++++++++++++++++++++++++++++-
 packages/firestore/src/global.ts    |  2 +-
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/packages/firestore/rollup.config.js b/packages/firestore/rollup.config.js
index 6b43183c87c..b9db3922098 100644
--- a/packages/firestore/rollup.config.js
+++ b/packages/firestore/rollup.config.js
@@ -59,6 +59,35 @@ const browserPlugins = [
   terser(util.manglePrivatePropertiesOptions)
 ];
 
+// TODO - update the implementation to match all content in the declare module block.
+function declareModuleReplacePlugin() {
+  // The regex we created earlier
+  const moduleToReplace =
+    /declare module '\.\/\S+' \{\s+interface Firestore \{\s+pipeline\(\): PipelineSource<Pipeline>;\s+}\s*}/gm;
+
+  // What to replace it with (an empty string to remove it)
+  const replacement =
+    'interface Firestore {pipeline(): PipelineSource<Pipeline>;}';
+
+  return {
+    name: 'declare-module-replace',
+    generateBundle(options, bundle) {
+      const outputFileName = 'global_index.d.ts';
+      if (!bundle[outputFileName]) {
+        console.warn(
+          `[regexReplacePlugin] File not found in bundle: ${outputFileName}`
+        );
+        return;
+      }
+
+      const chunk = bundle[outputFileName];
+      if (chunk.type === 'chunk') {
+        chunk.code = chunk.code.replace(moduleToReplace, replacement);
+      }
+    }
+  };
+}
+
 const allBuilds = [
   // Intermediate Node ESM build without build target reporting
   // this is an intermediate build used to generate the actual esm and cjs builds
@@ -222,7 +251,9 @@ const allBuilds = [
     plugins: [
       dts({
         respectExternal: true
-      })
+      }),
+
+      declareModuleReplacePlugin()
     ]
   }
 ];
diff --git a/packages/firestore/src/global.ts b/packages/firestore/src/global.ts
index f68d24b5241..529f43e022b 100644
--- a/packages/firestore/src/global.ts
+++ b/packages/firestore/src/global.ts
@@ -18,6 +18,6 @@
 // This file supports a special internal build that includes the entire
 // Firestore classic and pipeline api surface in one bundle.
 
+import * as pipelines from './api_pipelines';
 export * from './api';
-import * as pipelines from '../pipelines/pipelines';
 export { pipelines };

From 80caec9f76fb493005ea22b0f7b8eb592cecab3e Mon Sep 17 00:00:00 2001
From: Mark Duckworth <1124037+MarkDuckworth@users.noreply.github.com>
Date: Thu, 16 Oct 2025 13:58:56 -0600
Subject: [PATCH 04/10] Update CDN and g3 builds of Firestore to include
 Pipelines in the firebase-firestore.js file

---
 packages/firebase/firestore/index.ts | 3 +++
 packages/firebase/package.json       | 2 --
 packages/firebase/rollup.config.js   | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/packages/firebase/firestore/index.ts b/packages/firebase/firestore/index.ts
index 5d721c4e3b3..2247bdfebf5 100644
--- a/packages/firebase/firestore/index.ts
+++ b/packages/firebase/firestore/index.ts
@@ -16,3 +16,6 @@
  */
 
 export * from '@firebase/firestore';
+
+import * as pipelines from '@firebase/firestore/pipelines';
+export { pipelines };
diff --git a/packages/firebase/package.json b/packages/firebase/package.json
index 704b5395a40..67bd1deb559 100644
--- a/packages/firebase/package.json
+++ b/packages/firebase/package.json
@@ -476,9 +476,7 @@
     "auth/web-extension",
     "functions",
     "firestore",
-    "firestore/pipelines",
     "firestore/lite",
-    "firestore/lite/pipelines",
     "installations",
     "storage",
     "performance",
diff --git a/packages/firebase/rollup.config.js b/packages/firebase/rollup.config.js
index f96ff01666c..9a9cacdf573 100644
--- a/packages/firebase/rollup.config.js
+++ b/packages/firebase/rollup.config.js
@@ -149,7 +149,7 @@ const cdnBuilds = [
     .map(component => {
       // It is needed for handling sub modules, for example firestore/lite which should produce firebase-firestore-lite.js
       // Otherwise, we will create a directory with '/' in the name.
-      const componentName = component.replace('/', '-');
+      const componentName = component.replaceAll('/', '-');
 
       return {
         input: `${component}/index.ts`,

From b11446cda34590d9ea8d98098670a9235d419d57 Mon Sep 17 00:00:00 2001
From: Mark Duckworth <1124037+MarkDuckworth@users.noreply.github.com>
Date: Thu, 16 Oct 2025 14:49:15 -0600
Subject: [PATCH 05/10] Updated CDN bundles so that firebase-firestore.js is
 not modified, but firebase-firestore-pipelines.js contains both classic and
 pipelines APIs.

---
 packages/firebase/firestore/index.ts           | 3 ---
 packages/firebase/firestore/pipelines/index.ts | 5 ++++-
 packages/firebase/package.json                 | 1 +
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/packages/firebase/firestore/index.ts b/packages/firebase/firestore/index.ts
index 2247bdfebf5..5d721c4e3b3 100644
--- a/packages/firebase/firestore/index.ts
+++ b/packages/firebase/firestore/index.ts
@@ -16,6 +16,3 @@
  */
 
 export * from '@firebase/firestore';
-
-import * as pipelines from '@firebase/firestore/pipelines';
-export { pipelines };
diff --git a/packages/firebase/firestore/pipelines/index.ts b/packages/firebase/firestore/pipelines/index.ts
index be062f16e96..81e81b39d81 100644
--- a/packages/firebase/firestore/pipelines/index.ts
+++ b/packages/firebase/firestore/pipelines/index.ts
@@ -15,4 +15,7 @@
  * limitations under the License.
  */
 
-export * from '@firebase/firestore/pipelines';
+export * from '@firebase/firestore';
+
+import * as pipelines from '@firebase/firestore/pipelines';
+export { pipelines };
diff --git a/packages/firebase/package.json b/packages/firebase/package.json
index 67bd1deb559..349b9146829 100644
--- a/packages/firebase/package.json
+++ b/packages/firebase/package.json
@@ -477,6 +477,7 @@
     "functions",
     "firestore",
     "firestore/lite",
+    "firestore/pipelines",
     "installations",
     "storage",
     "performance",

From 78de11887201e8d9eb89eecd7631e6603a008080 Mon Sep 17 00:00:00 2001
From: Mark Duckworth <1124037+MarkDuckworth@users.noreply.github.com>
Date: Thu, 16 Oct 2025 16:17:52 -0600
Subject: [PATCH 06/10] Fix regression in
 _internalPipelineToExecutePipelineRequestProto

---
 .../src/remote/internal_serializer.ts         | 23 +++++++++++++++++--
 .../test/integration/api/pipeline.test.ts     | 17 +++++++-------
 2 files changed, 30 insertions(+), 10 deletions(-)

diff --git a/packages/firestore/src/remote/internal_serializer.ts b/packages/firestore/src/remote/internal_serializer.ts
index 29a68620efc..1e759dab814 100644
--- a/packages/firestore/src/remote/internal_serializer.ts
+++ b/packages/firestore/src/remote/internal_serializer.ts
@@ -18,14 +18,23 @@
 import { ensureFirestoreConfigured, Firestore } from '../api/database';
 import { AggregateImpl } from '../core/aggregate';
 import { queryToAggregateTarget, queryToTarget } from '../core/query';
+import {
+  StructuredPipeline,
+  StructuredPipelineOptions
+} from '../core/structured_pipeline';
 import { AggregateSpec } from '../lite-api/aggregate_types';
 import { getDatastore } from '../lite-api/components';
 import { Pipeline } from '../lite-api/pipeline';
 import { Query } from '../lite-api/reference';
+import { ExecutePipelineRequest as ProtoExecutePipelineRequest } from '../protos/firestore_proto_api';
 import { cast } from '../util/input_validation';
 import { mapToArray } from '../util/obj';
 
-import { toQueryTarget, toRunAggregationQueryRequest } from './serializer';
+import {
+  getEncodedDatabaseId,
+  toQueryTarget,
+  toRunAggregationQueryRequest
+} from './serializer';
 
 /**
  * @internal
@@ -112,5 +121,15 @@ export function _internalPipelineToExecutePipelineRequestProto(
   if (serializer === undefined) {
     return null;
   }
-  return pipeline._toProto(serializer);
+
+  const structuredPipeline = new StructuredPipeline(
+    pipeline,
+    new StructuredPipelineOptions()
+  );
+  const executePipelineRequest: ProtoExecutePipelineRequest = {
+    database: getEncodedDatabaseId(serializer),
+    structuredPipeline: structuredPipeline._toProto(serializer)
+  };
+
+  return executePipelineRequest;
 }
diff --git a/packages/firestore/test/integration/api/pipeline.test.ts b/packages/firestore/test/integration/api/pipeline.test.ts
index aab69008254..9ebf9ced4b5 100644
--- a/packages/firestore/test/integration/api/pipeline.test.ts
+++ b/packages/firestore/test/integration/api/pipeline.test.ts
@@ -346,18 +346,19 @@ const timestampDeltaMS = 1000;
 
   describe('console support', () => {
     it('supports internal serialization to proto', async () => {
+      // Perform the same test as the console
       const pipeline = firestore
         .pipeline()
-        .collection('books')
-        .where(equal('awards.hugo', true))
-        .select(
-          'title',
-          field('nestedField.level.1'),
-          mapGet('nestedField', 'level.1').mapGet('level.2').as('nested')
-        );
+        .collection('customers')
+        .where(field('country').equal('United Kingdom'));
 
       const proto = _internalPipelineToExecutePipelineRequestProto(pipeline);
-      expect(proto).not.to.be.null;
+
+      const expectedStructuredPipelineProto =
+        '{"pipeline":{"stages":[{"name":"collection","options":{},"args":[{"referenceValue":"/customers"}]},{"name":"where","options":{},"args":[{"functionValue":{"name":"equal","args":[{"fieldReferenceValue":"country"},{"stringValue":"United Kingdom"}]}}]}]}}';
+      expect(JSON.stringify(proto.structuredPipeline)).to.equal(
+        expectedStructuredPipelineProto
+      );
     });
   });
 

From 81cae6d7830190fb68f601e7d1a481f5239b7363 Mon Sep 17 00:00:00 2001
From: Mark Duckworth <1124037+MarkDuckworth@users.noreply.github.com>
Date: Fri, 17 Oct 2025 09:44:11 -0600
Subject: [PATCH 07/10] Fixing missing paths in package.json

---
 packages/firebase/gulpfile.js  | 2 +-
 packages/firebase/package.json | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/packages/firebase/gulpfile.js b/packages/firebase/gulpfile.js
index 4ea24182af2..e05345fbdf7 100644
--- a/packages/firebase/gulpfile.js
+++ b/packages/firebase/gulpfile.js
@@ -21,7 +21,7 @@ const replace = require('gulp-replace');
 
 const pkgJson = require('./package.json');
 const files = pkgJson.components.map(component => {
-  const componentName = component.replace('/', '-');
+  const componentName = component.replaceAll('/', '-');
   return `firebase-${componentName}.js`;
 });
 const FIREBASE_APP_URL = `https://www.gstatic.com/firebasejs/${pkgJson.version}/firebase-app.js`;
diff --git a/packages/firebase/package.json b/packages/firebase/package.json
index 349b9146829..cab2a72f634 100644
--- a/packages/firebase/package.json
+++ b/packages/firebase/package.json
@@ -478,6 +478,7 @@
     "firestore",
     "firestore/lite",
     "firestore/pipelines",
+    "firestore/lite/pipelines",
     "installations",
     "storage",
     "performance",

From 8c2de70d310879fb96151cc15b01575a217a7eb7 Mon Sep 17 00:00:00 2001
From: Mark Duckworth <1124037+MarkDuckworth@users.noreply.github.com>
Date: Fri, 17 Oct 2025 10:34:11 -0600
Subject: [PATCH 08/10] Fix binary size script

---
 scripts/size_report/report_binary_size.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/size_report/report_binary_size.ts b/scripts/size_report/report_binary_size.ts
index da1ad166702..34dce01924e 100644
--- a/scripts/size_report/report_binary_size.ts
+++ b/scripts/size_report/report_binary_size.ts
@@ -57,7 +57,7 @@ function generateReportForCDNScripts(): Report[] {
     ...special_files.map((file: string) => `${firebaseRoot}/${file}`),
     ...pkgJson.components.map(
       (component: string) =>
-        `${firebaseRoot}/firebase-${component.replace('/', '-')}.js`
+        `${firebaseRoot}/firebase-${component.replaceAll('/', '-')}.js`
     ),
     ...compatPkgJson.components.map(
       (component: string) => `${firebaseRoot}/firebase-${component}-compat.js`

From d6a9322da08d65edf75148b26dd88ec69608eaf1 Mon Sep 17 00:00:00 2001
From: Mark Duckworth <1124037+MarkDuckworth@users.noreply.github.com>
Date: Fri, 17 Oct 2025 15:43:00 -0600
Subject: [PATCH 09/10] Add support for index.cdn.ts files in
 packages/firebase. Then added a cdn.ts to
 packages/firebase/firestore/pipelines

---
 .../firebase/firestore/pipelines/index.cdn.ts | 21 +++++++++++++++++++
 .../firebase/firestore/pipelines/index.ts     |  5 +----
 packages/firebase/rollup.config.js            |  5 ++++-
 3 files changed, 26 insertions(+), 5 deletions(-)
 create mode 100644 packages/firebase/firestore/pipelines/index.cdn.ts

diff --git a/packages/firebase/firestore/pipelines/index.cdn.ts b/packages/firebase/firestore/pipelines/index.cdn.ts
new file mode 100644
index 00000000000..81e81b39d81
--- /dev/null
+++ b/packages/firebase/firestore/pipelines/index.cdn.ts
@@ -0,0 +1,21 @@
+/**
+ * @license
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export * from '@firebase/firestore';
+
+import * as pipelines from '@firebase/firestore/pipelines';
+export { pipelines };
diff --git a/packages/firebase/firestore/pipelines/index.ts b/packages/firebase/firestore/pipelines/index.ts
index 81e81b39d81..be062f16e96 100644
--- a/packages/firebase/firestore/pipelines/index.ts
+++ b/packages/firebase/firestore/pipelines/index.ts
@@ -15,7 +15,4 @@
  * limitations under the License.
  */
 
-export * from '@firebase/firestore';
-
-import * as pipelines from '@firebase/firestore/pipelines';
-export { pipelines };
+export * from '@firebase/firestore/pipelines';
diff --git a/packages/firebase/rollup.config.js b/packages/firebase/rollup.config.js
index 9a9cacdf573..87b9f7c834d 100644
--- a/packages/firebase/rollup.config.js
+++ b/packages/firebase/rollup.config.js
@@ -20,6 +20,7 @@ import commonjs from '@rollup/plugin-commonjs';
 import json from '@rollup/plugin-json';
 import pkg from './package.json';
 import { resolve } from 'path';
+import { existsSync } from 'fs';
 import resolveModule from '@rollup/plugin-node-resolve';
 import rollupTypescriptPlugin from 'rollup-plugin-typescript2';
 import sourcemaps from 'rollup-plugin-sourcemaps';
@@ -152,7 +153,9 @@ const cdnBuilds = [
       const componentName = component.replaceAll('/', '-');
 
       return {
-        input: `${component}/index.ts`,
+        input: existsSync(`${component}/index.cdn.ts`)
+          ? `${component}/index.cdn.ts`
+          : `${component}/index.ts`,
         output: {
           file: `firebase-${componentName}.js`,
           sourcemap: true,

From 9c029f9c5f6aef9154bdf185fbd2ff8e5a7e9206 Mon Sep 17 00:00:00 2001
From: Mark Duckworth <1124037+MarkDuckworth@users.noreply.github.com>
Date: Mon, 20 Oct 2025 12:43:37 -0600
Subject: [PATCH 10/10] Rename grpc_connection.node.test.ts, so the file is
 filtered from browser unit testing.

---
 .../{grpc_connection.test.ts => grpc_connection.node.test.ts}     | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename packages/firestore/test/unit/remote/{grpc_connection.test.ts => grpc_connection.node.test.ts} (100%)

diff --git a/packages/firestore/test/unit/remote/grpc_connection.test.ts b/packages/firestore/test/unit/remote/grpc_connection.node.test.ts
similarity index 100%
rename from packages/firestore/test/unit/remote/grpc_connection.test.ts
rename to packages/firestore/test/unit/remote/grpc_connection.node.test.ts