firebase/firebase-ios-sdk

Firebase SDK for Apple App Development

C++★ 6,884+112 that day#2 on trending

Analyzed October 2, 2026 at fbeeaa4 (main) with jscpd 5.4.0 in 3.1s. Code duplication went from 15.27% on Oct 1 to 15.28% on Oct 2.

E37.5/100

Project health662,648 lines of code (L)

Duplication23

18.3% in objectivec, swift, cpp, c-header, python, bash, c, cmake, ruby, hcl, javascript, perl

Dead coden/a

the languages dead code reads are under 5% of the code

Complexity62

34.4%

The score is jscpd's own --health model: markup, data and text left out, tests kept. The numbers below are the trending scan's.

15.28%duplicated code · 76,817 of 502,829 lines

6,208clones in code

3,128code files of 3,839 scanned

26.53%duplicated over all files · 12,427 clones

Most complex files

Dead code 2.17% unused · 8 findings

scripts/lldb/firestore.pyunused-file
scripts/cpplint.py:_IncludeErrorunused-symbol
scripts/cpplint.py:_RE_PATTERN_REF_PARAMunused-symbol
scripts/cpplint.py:_RE_PATTERN_CONST_REF_PARAMunused-symbol
scripts/cpplint.py:_RE_PATTERN_REF_STREAM_PARAMunused-symbol
Firestore/Protos/lib/pretty_printing.py:textwrapunused-import
Firestore/Protos/lib/pretty_printing.py:FieldDescriptorProtounused-import
scripts/lib/checker.py:_output_lockunused-symbol

The code number leaves out tests, fixtures, docs, examples, data files, styles, translations and vendored code, and 102 generated files: Crashlytics/Protogen/nanopb/crashlytics.nanopb.c, Crashlytics/Protogen/nanopb/crashlytics.nanopb.h, FirebaseInAppMessaging/Sources/Analytics/Protogen/nanopb/fiam.nanopb.c, FirebaseInAppMessaging/Sources/Analytics/Protogen/nanopb/fiam.nanopb.h, FirebaseMessaging/Sources/Protogen/nanopb/me.nanopb.c, FirebaseMessaging/Sources/Protogen/nanopb/me.nanopb.h, FirebasePerformance/Sources/Protogen/nanopb/perf_metric.nanopb.c, FirebasePerformance/Sources/Protogen/nanopb/perf_metric.nanopb.h, FirebaseSessions/SourcesObjC/Protogen/nanopb/sessions.nanopb.c, FirebaseSessions/SourcesObjC/Protogen/nanopb/sessions.nanopb.h, Firestore/Protos/cpp/firestore/bundle.pb.cc, Firestore/Protos/cpp/firestore/bundle.pb.h, Firestore/Protos/cpp/firestore/local/maybe_document.pb.cc, Firestore/Protos/cpp/firestore/local/maybe_document.pb.h, Firestore/Protos/cpp/firestore/local/mutation.pb.cc, Firestore/Protos/cpp/firestore/local/mutation.pb.h, Firestore/Protos/cpp/firestore/local/target.pb.cc, Firestore/Protos/cpp/firestore/local/target.pb.h, Firestore/Protos/cpp/google/api/annotations.pb.cc, Firestore/Protos/cpp/google/api/annotations.pb.h and 82 more.

Largest clones in the code

17 lines in 261 placesc-header577 tokens
FirebaseAuth/Sources/Public/FirebaseAuth/FIRAuth.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIRAuthErrors.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIREmailAuthProvider.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIRFacebookAuthProvider.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIRFederatedAuthProvider.h:1–17and 256 more
```
1/*
2 * Copyright 2017 Google
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
```
First 10 of 17 lines.

17 lines in 255 placesobjectivec583 tokens

FirebaseAuth/Sources/ObjC/FIRAuth.m:1–17FirebaseAuth/Sources/ObjC/FIRAuthErrorUtils.m:1–17FirebaseAuth/Sources/ObjC/FIRAuthProvider.m:1–17FirebaseAuth/Tests/SampleSwift/ObjCApiTests/EmailPasswordAuthTests.m:1–17FirebaseAuth/Tests/Unit/FIROAuthProviderTests.m:1–17and 250 more

1/*
2 * Copyright 2017 Google
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software

First 10 of 17 lines.

17 lines in 145 placesc-header576 tokens
Crashlytics/Crashlytics/Public/FirebaseCrashlytics/FirebaseCrashlytics.h:1–17 FirebaseAppDistribution/Sources/FIRAppDistributionMachO.h:1–17 FirebaseAppDistribution/Sources/FIRAppDistributionMachOSlice.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIRMultiFactor.h:1–17 FirebaseAuth/Tests/SampleSwift/ObjCApiTests/FIRAuthApiTestsBase.h:1–17and 140 more
```
1/*
2 * Copyright 2019 Google
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
```
First 10 of 17 lines.

7 more

17 lines in 115 placesc-header575 tokens
FirebaseAuth/Interop/Public/FirebaseAuthInterop/FIRAuthInterop.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIRGameCenterAuthProvider.h:1–17 FirebaseCore/Extension/FIRComponent.h:1–17 FirebaseCore/Extension/FIRComponentContainer.h:1–17 FirebaseCore/Extension/FIRComponentType.h:1–17and 110 more
17 lines in 100 placesobjectivec576 tokens
FirebaseAppDistribution/Sources/FIRAppDistributionMachO.m:1–17 FirebaseAppDistribution/Sources/FIRAppDistributionMachOSlice.m:1–17 FirebaseAuth/Sources/ObjC/FIRMultiFactorConstants.m:1–17 FirebaseAuth/Tests/SampleSwift/ObjCApiTests/AccountInfoTests.m:1–17 FirebaseAuth/Tests/SampleSwift/ObjCApiTests/AnonymousAuthTests.m:1–17and 95 more
17 lines in 49 placesc-header580 tokens
Crashlytics/Crashlytics/Models/Record/FIRCLSRecordApplication.h:1–17 Crashlytics/Crashlytics/Models/Record/FIRCLSRecordBase.h:1–17 Crashlytics/Crashlytics/Models/Record/FIRCLSReportAdapter.h:1–17 Crashlytics/Crashlytics/Models/Record/FIRCLSReportAdapter_Private.h:1–17 FirebaseAppCheck/Interop/Public/FirebaseAppCheckInterop/FIRAppCheckInterop.h:1–17and 44 more
17 lines in 49 placescpp576 tokens
Firestore/core/src/core/database_info.cc:1–17 Firestore/core/src/core/field_filter.cc:1–17 Firestore/core/src/core/filter.cc:1–17 Firestore/core/src/core/query.cc:1–17 Firestore/core/src/core/user_data.cc:1–17and 44 more
17 lines in 47 placescpp576 tokens
Firestore/core/src/api/collection_reference.cc:1–17 Firestore/core/src/api/document_change.cc:1–17 Firestore/core/src/api/document_snapshot.cc:1–17 Firestore/core/src/api/query_listener_registration.cc:1–17 Firestore/core/src/api/query_snapshot.cc:1–17and 42 more
17 lines in 42 placesobjectivec576 tokens
FirebaseCore/Sources/FIRComponent.m:1–17 FirebaseCore/Sources/FIRComponentContainer.m:1–17 FirebaseCore/Sources/FIRComponentType.m:1–17 FirebaseCore/Tests/Unit/FIRAnalyticsConfigurationTest.m:1–17 FirebaseDatabase/Sources/Api/FIRDatabaseComponent.m:1–17and 37 more
15 lines in 37 placesc-header578 tokens
FirebaseAnalyticsCoreWrapper/include/dummy.h:1–15 FirebaseAppCheck/Sources/Core/FIRAppCheckSettings.h:1–15 FirebaseAppCheck/Sources/Core/FIRAppCheckToken+Internal.h:1–15 FirebaseAppCheck/Sources/Public/FirebaseAppCheck/FIRAppAttestProvider.h:1–15 FirebaseAppCheck/Sources/Public/FirebaseAppCheck/FIRAppCheckAvailability.h:1–15and 32 more

Largest clones over all files, tests and data included

17 lines in 261 placesc-header577 tokens
FirebaseAuth/Sources/Public/FirebaseAuth/FIRAuth.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIRAuthErrors.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIREmailAuthProvider.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIRFacebookAuthProvider.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIRFederatedAuthProvider.h:1–17and 256 more
```
1/*
2 * Copyright 2017 Google
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
```
First 10 of 17 lines.

17 lines in 255 placesobjectivec583 tokens

1/*
2 * Copyright 2017 Google
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software

First 10 of 17 lines.

17 lines in 158 placesc-header576 tokens
Crashlytics/Crashlytics/Public/FirebaseCrashlytics/FirebaseCrashlytics.h:1–17 FirebaseAppDistribution/Sources/FIRAppDistributionMachO.h:1–17 FirebaseAppDistribution/Sources/FIRAppDistributionMachOSlice.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIRMultiFactor.h:1–17 FirebaseAuth/Tests/SampleSwift/ObjCApiTests/FIRAuthApiTestsBase.h:1–17and 153 more
```
1/*
2 * Copyright 2019 Google
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
```
First 10 of 17 lines.
17 lines in 119 placesc-header575 tokens
FirebaseAuth/Interop/Public/FirebaseAuthInterop/FIRAuthInterop.h:1–17 FirebaseAuth/Sources/Public/FirebaseAuth/FIRGameCenterAuthProvider.h:1–17 FirebaseCore/Extension/FIRComponent.h:1–17 FirebaseCore/Extension/FIRComponentContainer.h:1–17 FirebaseCore/Extension/FIRComponentType.h:1–17and 114 more
17 lines in 103 placesobjectivec576 tokens
FirebaseAppDistribution/Sources/FIRAppDistributionMachO.m:1–17 FirebaseAppDistribution/Sources/FIRAppDistributionMachOSlice.m:1–17 FirebaseAuth/Sources/ObjC/FIRMultiFactorConstants.m:1–17 FirebaseAuth/Tests/SampleSwift/ObjCApiTests/AccountInfoTests.m:1–17 FirebaseAuth/Tests/SampleSwift/ObjCApiTests/AnonymousAuthTests.m:1–17and 98 more

By format, code only

Format	Files	Lines	Clones	Duplicated lines	Duplication
objectivec	838	185,927	2,558	32,094	17.26%
c-header	977	80,988	1,929	22,192	27.4%
swift	1,001	166,282	1,405	17,766	10.68%
cpp	197	44,035	280	4,175	9.48%
python	22	11,725	30	446	3.8%
bash	69	6,142	3	92	1.5%
c	14	5,590	3	52	0.93%
ruby	8	1,737	0	0	0%
javascript	1	229	0	0	0%
perl	1	174	0	0	0%

By format, all files

Format	Files	Lines	Clones	Duplicated lines	Duplication
c-header	1,061	134,369	3,237	41,360	30.78%
cpp	419	145,159	2,670	28,770	19.82%
objectivec	853	187,597	2,585	32,439	17.29%
json	96	95,016	2,247	84,782	89.23%
swift	1,012	166,763	1,406	17,780	10.66%
yaml	61	6,187	66	815	13.17%
txt	40	2,571	66	781	30.38%
log	2	673	60	512	76.08%
python	24	12,208	37	536	4.39%
c	19	6,143	17	248	4.04%

Trending appearances

Day	Rank	Stars	Files	Lines	Clones	All files	Code	Health	Commit
Oct 2, 2026	#2	6,884 (+112)	3,839	786,167	12,427	26.53%	15.28%	E 37.5	`fbeeaa4`
Oct 1, 2026	#5	6,781 (+8)	3,839	786,012	12,425	26.53%	15.27%	E 37.5	`5dd4053`

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