[ADD] SwiftFormat

.github/workflows/CI.yml

@@ -5,7 +5,14 @@ on:
     branches: [ develop ]
 
 jobs:
+  lint:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Lint
+      run: ./scripts/runSwiftFormat.sh -l
   macos:
+    needs: lint
     runs-on: macos-latest
     steps:
     - uses: actions/checkout@v3
@@ -14,6 +21,7 @@ jobs:
     - name: Tests
       run: swift test -v
   linux:
+    needs: lint
     runs-on: ubuntu-latest
     container:
       image: swift:5.5-bionic
@@ -22,4 +30,4 @@ jobs:
     - name: Build
       run: swift build -v
     - name: Tests
-      run: swift test -v
+      run: swift test -v

.gitignore

@@ -64,3 +64,5 @@ fastlane/report.xml
 fastlane/Preview.html
 fastlane/screenshots
 fastlane/test_output
+
+scripts/bin/*

scripts/prepareForPush.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+SWIFT_VERSION=5.3
+
+cd "$(dirname "$0")"
+
+./runSwiftFormat.sh

scripts/runSwiftFormat.sh

@@ -0,0 +1,63 @@
+#!/bin/sh
+
+SWIFT_VERSION=5.3
+
+cd "$(dirname "$0")"
+
+function downloadAndUnzip {
+    curl -L -o tool.zip $2
+    unzip -o -d $1/ tool.zip
+    rm tool.zip
+}
+
+if ! which bin/swiftformat >/dev/null; then
+    echo "warning: SwiftFormat not installed, installing..."
+
+    mkdir -p -- "bin"
+    cd bin
+    rm -r ./*
+
+    downloadAndUnzip "SwiftFormatTmp" "https://github.com/nicklockwood/SwiftFormat/releases/download/0.50.3/swiftformat.artifactbundle.zip"
+    mv -f ./SwiftFormatTmp/swiftformat.artifactbundle/swiftformat-0.50.3-macos/bin/swiftformat .
+    find . -name "*Tmp" -type d -prune -exec rm -rf '{}' +
+    for entry in ./*
+    do
+        chmod +x "$entry"
+    done
+    cd ../
+fi
+
+cleanup() {
+    exit_code=$?
+    if [[ ${exit_code} -eq 0 ]]; then
+        exit 0
+    else
+        echo "Need to run scripts/prepareForPush.sh script to prepare the code before a PullRequest."
+        exit 1
+    fi
+}
+
+format() {
+    bin/swiftformat ../web3swift/src/ --config "swiftformat.yml" --swiftversion $SWIFT_VERSION
+    cleanup
+}
+
+lint() {
+    bin/swiftformat --lint ../web3swift/src/ --config "swiftformat.yml" --swiftversion $SWIFT_VERSION
+    cleanup
+}
+
+while getopts "fl" o; do
+    case "${o}" in
+        f)
+            format;
+            exit;;
+        l)
+            lint;
+            exit;;
+        *)
+            exit;;
+    esac
+done
+
+format

scripts/swiftformat.yml

@@ -0,0 +1,79 @@
+--acronyms ID,URL,UUID
+--allman false
+--assetliterals visual-width
+--beforemarks
+--binarygrouping 4,8
+--categorymark "MARK: %c"
+--classthreshold 0
+--closingparen balanced
+--closurevoid remove
+--commas always
+--conflictmarkers reject
+--decimalgrouping 3,6
+--elseposition same-line
+--emptybraces no-space
+--enumnamespaces always
+--enumthreshold 0
+--exponentcase lowercase
+--exponentgrouping disabled
+--extensionacl on-extension
+--extensionlength 0
+--extensionmark "MARK: - %t + %c"
+--fractiongrouping disabled
+--fragment false
+--funcattributes prev-line
+--generictypes
+--groupedextension "MARK: %c"
+--guardelse same-line
+--header ignore
+--hexgrouping 4,8
+--hexliteralcase uppercase
+--ifdef indent
+--importgrouping length
+--indent 4
+--indentcase false
+--indentstrings false
+--lifecycle
+--lineaftermarks false
+--linebreaks lf
+--markcategories true
+--markextensions always
+--marktypes always
+--maxwidth none
+--modifierorder
+--nevertrailing
+--nospaceoperators
+--nowrapoperators
+--octalgrouping 4,8
+--operatorfunc spaced
+--organizetypes actor,class,enum,struct
+--patternlet hoist
+--ranges spaced
+--redundanttype infer-locals-only
+--self remove
+--selfrequired
+--semicolons inline
+--shortoptionals always
+--smarttabs enabled
+--someAny true
+--stripunusedargs always
+--structthreshold 0
+--tabwidth unspecified
+--trailingclosures
+--trimwhitespace always
+--typeattributes prev-line
+--typeblanklines remove
+--typemark "MARK: - %t"
+--varattributes same-line
+--voidtype void
+--wraparguments before-first
+--wrapcollections before-first
+--wrapconditions preserve
+--wrapparameters before-first
+--wrapreturntype preserve
+--wrapternary default
+--wraptypealiases preserve
+--xcodeindentation disabled
+--yodaswap always
+--disable enumNamespaces,extensionAccessControl,fileHeader,genericExtensions,modifierOrder,numberFormatting,opaqueGenericParameters,preferKeyPath,redundantBackticks,redundantExtensionACL,redundantFileprivate,redundantPattern,redundantRawValues,redundantSelf,sortDeclarations,spaceAroundGenerics,strongOutlets,trailingClosures,trailingCommas,unusedArguments,wrap,wrapMultilineStatementBraces,wrapSingleLineComments,yodaConditions
+--enable blankLineAfterImports,blankLinesBetweenImports,isEmpty,wrapConditionalBodies

web3swift/src/Account/EthereumAccount+SignTransaction.swift

@@ -11,7 +11,6 @@ enum EthereumSignerError: Error {
 }
 
 public extension EthereumAccount {
-
     func signRaw(_ transaction: EthereumTransaction) throws -> Data {
         let signed: SignedTransaction = try sign(transaction: transaction)
         guard let raw = signed.raw else {
@@ -21,7 +20,6 @@ public extension EthereumAccount {
     }
 
     func sign(transaction: EthereumTransaction) throws -> SignedTransaction {
-
         guard let raw = transaction.raw else {
             throw EthereumSignerError.emptyRawTransaction
         }
@@ -30,8 +28,8 @@ public extension EthereumAccount {
             throw EthereumSignerError.unknownError
         }
 
-        let r = signature.subdata(in: 0..<32)
-        let s = signature.subdata(in: 32..<64)
+        let r = signature.subdata(in: 0 ..< 32)
+        let s = signature.subdata(in: 32 ..< 64)
 
         var v = Int(signature[64])
         if v < 37 {

web3swift/src/Account/EthereumAccount.swift

@@ -3,8 +3,8 @@
 //  Copyright © 2022 Argent Labs Limited. All rights reserved.
 //
 
-import Foundation
 import Logging
+import Foundation
 
 public protocol EthereumAccountProtocol {
     var address: EthereumAddress { get }
@@ -29,21 +29,17 @@ public class EthereumAccount: EthereumAccountProtocol {
     private let publicKeyData: Data
     private let logger: Logger
 
-    public lazy var publicKey: String = {
-        return self.publicKeyData.web3.hexString
-    }()
+    public lazy var publicKey: String = self.publicKeyData.web3.hexString
 
-    public lazy var address: EthereumAddress = {
-        return KeyUtil.generateAddress(from: self.publicKeyData)
-    }()
+    public lazy var address: EthereumAddress = KeyUtil.generateAddress(from: self.publicKeyData)
 
     required public init(keyStorage: EthereumSingleKeyStorageProtocol, keystorePassword password: String, logger: Logger? = nil) throws {
         self.logger = logger ?? Logger(label: "web3.swift.eth-account")
         do {
             let decodedKey = try keyStorage.loadAndDecryptPrivateKey(keystorePassword: password)
             self.privateKeyData = decodedKey
             self.publicKeyData = try KeyUtil.generatePublicKey(from: decodedKey)
-        } catch let error {
+        } catch {
             self.logger.warning("Error loading key data: \(error)")
             throw EthereumAccountError.loadAccountError
         }
@@ -59,20 +55,20 @@ public class EthereumAccount: EthereumAccountProtocol {
             throw EthereumAccountError.loadAccountError
         }
     }
-    
+
     required public init(addressString: String, keyStorage: EthereumMultipleKeyStorageProtocol, keystorePassword password: String, logger: Logger? = nil) throws {
         self.logger = logger ?? Logger(label: "web3.swift.eth-account")
         do {
             let address = EthereumAddress(addressString)
             let decodedKey = try keyStorage.loadAndDecryptPrivateKey(for: address, keystorePassword: password)
             self.privateKeyData = decodedKey
             self.publicKeyData = try KeyUtil.generatePublicKey(from: decodedKey)
-        } catch let error {
+        } catch {
             self.logger.warning("Error loading key data: \(error)")
             throw EthereumAccountError.loadAccountError
         }
     }
-    
+
     required public init(addressString: String, keyStorage: EthereumMultipleKeyStorageProtocol, logger: Logger? = nil) throws {
         self.logger = logger ?? Logger(label: "web3.swift.eth-account")
         do {
@@ -84,12 +80,12 @@ public class EthereumAccount: EthereumAccountProtocol {
             throw EthereumAccountError.loadAccountError
         }
     }
-    
+
     public static func create(addingTo keyStorage: EthereumMultipleKeyStorageProtocol, keystorePassword password: String) throws -> EthereumAccount {
         guard let privateKey = KeyUtil.generatePrivateKeyData() else {
             throw EthereumAccountError.createAccountError
         }
-        
+
         do {
             try keyStorage.encryptAndStorePrivateKey(key: privateKey, keystorePassword: password)
             let publicKey = try KeyUtil.generatePublicKey(from: privateKey)
@@ -99,7 +95,7 @@ public class EthereumAccount: EthereumAccountProtocol {
             throw EthereumAccountError.createAccountError
         }
     }
-    
+
     public static func create(replacing keyStorage: EthereumSingleKeyStorageProtocol, keystorePassword password: String) throws -> EthereumAccount {
         guard let privateKey = KeyUtil.generatePrivateKeyData() else {
             throw EthereumAccountError.createAccountError
@@ -112,7 +108,7 @@ public class EthereumAccount: EthereumAccountProtocol {
             throw EthereumAccountError.createAccountError
         }
     }
-    
+
     public static func importAccount(addingTo keyStorage: EthereumMultipleKeyStorageProtocol, privateKey: String, keystorePassword password: String) throws -> EthereumAccount {
         guard let privateKey = privateKey.web3.hexData else {
             throw EthereumAccountError.importAccountError
@@ -126,7 +122,7 @@ public class EthereumAccount: EthereumAccountProtocol {
             throw EthereumAccountError.importAccountError
         }
     }
-    
+
     public static func importAccount(replacing keyStorage: EthereumSingleKeyStorageProtocol, privateKey: String, keystorePassword password: String) throws -> EthereumAccount {
         guard let privateKey = privateKey.web3.hexData else {
             throw EthereumAccountError.importAccountError
@@ -138,13 +134,13 @@ public class EthereumAccount: EthereumAccountProtocol {
             throw EthereumAccountError.importAccountError
         }
     }
-    
+
     public func sign(data: Data) throws -> Data {
-        return try KeyUtil.sign(message: data, with: privateKeyData, hashing: true)
+        try KeyUtil.sign(message: data, with: privateKeyData, hashing: true)
     }
 
     public func sign(hex: String) throws -> Data {
-        if let data = Data.init(hex: hex) {
+        if let data = Data(hex: hex) {
             return try KeyUtil.sign(message: data, with: privateKeyData, hashing: true)
         } else {
             throw EthereumAccountError.signError
@@ -160,7 +156,7 @@ public class EthereumAccount: EthereumAccountProtocol {
     }
 
     public func sign(message: Data) throws -> Data {
-        return try KeyUtil.sign(message: message, with: privateKeyData, hashing: false)
+        try KeyUtil.sign(message: message, with: privateKeyData, hashing: false)
     }
 
     public func sign(message: String) throws -> Data {
@@ -181,13 +177,11 @@ public class EthereumAccount: EthereumAccountProtocol {
 
         guard var signed = try? sign(message: hash) else {
             throw EthereumAccountError.signError
-
         }
 
         // Check last char (v)
         guard var last = signed.popLast() else {
             throw EthereumAccountError.signError
-
         }
 
         if last < 27 {
@@ -203,13 +197,11 @@ public class EthereumAccount: EthereumAccountProtocol {
 
         guard var signed = try? sign(message: hash) else {
             throw EthereumAccountError.signError
-
         }
 
         // Check last char (v)
         guard var last = signed.popLast() else {
             throw EthereumAccountError.signError
-
         }
 
         if last < 27 {