cadenceUpgrader

UPDATE:

Ran on mainnet for ~3000 contracts.

Remaining problems: ( needs manual fix )

capabilities on private paths
impure operation on view context
dereferencing structs ( metadata etc )
array mutation

Usage:

put your contracts in to contracts directory ( imports should be string imports, see examples )
run
upgraded contracts will be on contractsV1 directory

it should parse all dependencies and upgrade all needed

PS: I wrote this in like 2-3 hours, not 100% but works pretty good. some samples in https://github.com/bluesign/cadenceUpgrader/tree/main/test

**NOTE: This doesn't add new entitlements, as is pretty unsecure for complex contracts. **

Upgrading NFT contracts to Cadence 1.0

Applies few rules are applied:

Applies LS suggestions
External Interface entitlements
Internal Interfaces changed to be compatible with external ones
Metadataview / Resolver updates
Fixes some castings
Fixes some references ( auth reference needs etc )
Removes legacy destructors
Tries to fix function purity ( view )
Fixes type restrictions
Implements missing interface functions ( as stubs or preset for NFT etc )
Fixes &Account references ( link, getCapability, borrow etc )
Fixes missing labels
Tries to fix nested references
Fixes some invocations ...