public bool AddCapability()

in Facebook.Unity.Editor/iOS/PBXProject.cs [511:565]
43 lines of code
15 McCabe index (conditional complexity)

        public bool AddCapability(
          string targetGuid,
          PBXCapabilityType capability,
          string entitlementsFilePath = null,
          bool addOptionalFramework = false
        )
        {
            // If the capability requires entitlements then you have to provide the name of it or we don't add the capability.
            if (capability.requiresEntitlements && entitlementsFilePath == "")
            {
                throw new Exception(
                  "Couldn't add the Xcode Capability "
                  + capability.id
                  + " to the PBXProject file because this capability requires an entitlement file."
                );
            }
            var p = project.project;

            // If an entitlement with a different name was added for another capability
            // we don't add this capacity.
            if (p.entitlementsFile != null && entitlementsFilePath != null && p.entitlementsFile != entitlementsFilePath)
            {
                if (p.capabilities.Count > 0)
                    throw new WarningException(
                      "Attention, it seems that you have multiple entitlements file. Only one will be added the Project : "
                      + p.entitlementsFile
                    );

                return false;
            }

            // Add the capability only if it doesn't already exist.
            if (p.capabilities.Contains(new PBXCapabilityType.TargetCapabilityPair(targetGuid, capability)))
            {
                throw new WarningException("This capability has already been added. Method ignored");
            }

            p.capabilities.Add(new PBXCapabilityType.TargetCapabilityPair(targetGuid, capability));

            // Add the required framework.
            if (capability.framework != "" && !capability.optionalFramework ||
               (capability.framework != "" && capability.optionalFramework && addOptionalFramework))
            {
                AddFrameworkToProject(targetGuid, capability.framework, false);
            }

            // Finally add the entitlement code signing if it wasn't added before.
            if (entitlementsFilePath != null && p.entitlementsFile == null)
            {
                p.entitlementsFile = entitlementsFilePath;
                AddFileImpl(entitlementsFilePath,  entitlementsFilePath, PBXSourceTree.Source, false);
                SetBuildProperty(targetGuid, "CODE_SIGN_ENTITLEMENTS", PBXPath.FixSlashes(entitlementsFilePath));
            }
            return true;
        }