Compare against last common commit

[porter-stripe]

Summary

• Only compare the public interface with the commit the branch is based off of rather than master. This will ignore cases where master is ahead of the current branch and where the master branch has public API changes.

Motivation

False positives/not helpful flags
#3556 (review)

Testing

See branch commit history

Changelog

N/A

[github-actions]

⚠️ Public API changes detected:

StripePayments

- @objc public var allowRedisplay: StripePayments.STPPaymentMethodAllowRedisplay
- @objc convenience public init(card: StripePayments.STPPaymentMethodCardParams, billingDetails: StripePayments.STPPaymentMethodBillingDetails?, allowRedisplay: StripePayments.STPPaymentMethodAllowRedisplay = .unspecified, metadata: [Swift.String : Swift.String]?)
+ @objc convenience public init(card: StripePayments.STPPaymentMethodCardParams, billingDetails: StripePayments.STPPaymentMethodBillingDetails?, metadata: [Swift.String : Swift.String]?)
- @objc convenience public init(usBankAccount: StripePayments.STPPaymentMethodUSBankAccountParams, billingDetails: StripePayments.STPPaymentMethodBillingDetails, allowRedisplay: StripePayments.STPPaymentMethodAllowRedisplay = .unspecified, metadata: [Swift.String : Swift.String]?)
+ @objc convenience public init(usBankAccount: StripePayments.STPPaymentMethodUSBankAccountParams, billingDetails: StripePayments.STPPaymentMethodBillingDetails, metadata: [Swift.String : Swift.String]?)
- case unspecified
- case limited
- case always
- public init?(rawValue: Swift.Int)
- public typealias RawValue = Swift.Int
- public var rawValue: Swift.Int {
- get
- }

If you are adding a new public API consider the following:

• Do these APIs need to be public or can they be protected with @_spi(STP)?
• If these APIs need to be public, assess whether they require an API review.

If you are modifying or removing a public API:

• Does this require a breaking version change?
• Do these changes require API review?

If you confirm these APIs need to be added/updated and have undergone necessary review, add the label modifies public API to this PR to acknowledge and bypass this check.