Yearn Vesting Escrow

A modified version of Curve Vesting Escrow contracts with added functionality:

An escrow can have a start_date in the past.
The first unlock can be delayed using cliff_length.
An ability to claim partial amounts or use a different beneficiary account.
An ability to terminate an escrow and clawback all the unvested tokens using rug_pull. The recipient is still entitled to the vested portion.
Factory admin controls removed, anyone can deploy escrows, funds are pulled instead of pushed.
Factory emits an event which allows finding all the escrows deployed from it.

Contracts

VestingEscrowFactory: Factory to deploy many simplified vesting contracts
VestingEscrowSimple: Simplified vesting contract that holds tokens for a single beneficiary

Usage

$ brownie console --network mainnet
funder = accounts.load(name)
factory = VestingEscrowFactory.at('0x98d3872b4025ABE58C4667216047Fe549378d90f', owner=funder)
factory.deploy_vesting_contract(token, recipient, amount, vesting_duration, vesting_start, cliff_length)