Fossa supports Swift and Objective-C Cocoa projects with both CocoaPods and Carthage.

CocoaPods (Alpha)

Fossa is using CocoaPods Version ~1.0. If your Podfile is built using an earlier version, there is a chance that it may not build correctly. To upgrade See doc.

The CocoaPods build system pulls in dependencies based on:

  1. Name
  2. SemVer Version
  3. External Repository (Git, Subversion, Mercurial, HTTP)

Fossa derives dependencies by analyzing your Podfile/Podfile.lock files and seeing which dependencies are brought in. Other metadata is fetched directly from repository podspec files.

Configuring podspec repos

FOSSA allows you to add your own podspec repos as well. This is done via the Language Settings page under Cocoapods Settings. The url should be of the form: for public repos, and for private repos.

Cocoapods Add Spec Repo


When adding a new spec repo, FOSSA will attempt to automatically add our public key to the github repo.

If your private spec repos are not working in FOSSA, please make sure that the following public key is added to your github settings:

ssh-rsa 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

This is done via the Project Settings deploy key section in your github project:

Github Deploy Key

On-prem users will need to get their public key from the host server (if one doesn't exist, the Cocoapods migration will create a key pair)

Carthage (Alpha)

Fossa scans through your Project and analyzes any Cartfile that is found. Cartfile.private and Cartfile.resolved files are ignored. It grabs dependencies based on:

  1. Name
  2. SemVer Version
  3. External Repository (Git, Github)

Known Limitations

CocoaPods Limitations

  • We don't factor in the platform specified in the Podfile. For each dependency, we will fetch the code for all valid platforms
  • Build configurations are not being taken into account at the moment
  • If a subspec(s) of a pod is given, Fossa will analyze the entire Pod
  • Only git external sources are supported. Subversion, Mercurial, and HTTP sources are currently not supported
  • Plugins in Podfiles are currently being ignored
  • Pre and Post install hooks sometimes do not work properly
  • Pre-release version ranges currently just resolve to the version given (i.e. >=10.1.1.beta will resolve to 10.1.1.beta, as well as ~>10.1.1.beta)
  • multi range versions with pre-releases may not work properly (i.e. >10.1.1.beta1 <10.1.1.beta4)

Carthage Limitations

  • Nested dependencies aren't properly handled
  • Cartfile.resolve files aren't being analyzed, so versioning may be inconsistant
  • Local file repositories (i.e. File:///) in Cartfile's aren't analyzed.