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try implementing a command that can search the index for packages

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This commit is contained in:
a dinosaur
2024-11-15 19:54:35 +11:00
parent 14bd390114
commit 7e403d64e0
11 changed files with 206 additions and 61 deletions
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8
Sources/apk/Index/ApkIndex.swift
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@ -3,8 +3,8 @@
* SPDX-License-Identifier: Apache-2.0
*/
struct ApkIndex {
let packages: [ApkIndexPackage]
public struct ApkIndex {
public let packages: [ApkIndexPackage]
}
extension ApkIndex {
@ -15,7 +15,7 @@ extension ApkIndex {
}
}
extension ApkIndex {
public extension ApkIndex {
static func merge<S: Sequence>(_ tables: S) -> Self where S.Element == Self {
Self.init(packages: tables.flatMap(\.packages))
}
@ -34,7 +34,7 @@ extension ApkIndex {
}
extension ApkIndex: CustomStringConvertible {
var description: String {
public var description: String {
self.packages.map(String.init).joined(separator: "\n")
}
}

2
Sources/apk/Index/ApkIndexDependency.swift
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@ -5,7 +5,7 @@
import Foundation
struct ApkIndexDependency: Hashable {
public struct ApkIndexDependency: Hashable {
let requirement: ApkRequirement
init(requirement: ApkRequirement) {

18
Sources/apk/Index/ApkIndexDigest.swift
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@ -6,9 +6,9 @@
import Foundation
import CryptoKit
struct ApkIndexDigest {
let type: DigestType
let data: Data
public struct ApkIndexDigest {
public let type: DigestType
public let data: Data
init?(type: DigestType, data: Data) {
let len = switch type {
@ -78,24 +78,24 @@ struct ApkIndexDigest {
}
extension ApkIndexDigest: Equatable, Hashable {
@inlinable static func == (lhs: Self, rhs: Self) -> Bool {
@inlinable public static func == (lhs: Self, rhs: Self) -> Bool {
lhs.type == rhs.type && lhs.data == rhs.data
}
func hash(into hasher: inout Hasher) {
public func hash(into hasher: inout Hasher) {
//self.type.hash(into: &hasher)
self.data.hash(into: &hasher)
}
}
extension ApkIndexDigest {
public extension ApkIndexDigest {
enum DigestType {
case md5, sha1, sha256
}
}
extension ApkIndexDigest.DigestType: CustomStringConvertible {
var description: String {
public var description: String {
switch self {
case .md5: "MD5"
case .sha1: "SHA-1"
@ -107,7 +107,7 @@ extension ApkIndexDigest.DigestType: CustomStringConvertible {
extension ApkIndexDigest: CustomStringConvertible {
#if DEBUG
private static let hex = Array("0123456789ABCDEF".unicodeScalars)
var description: String {
public var description: String {
var s = "[\(self.type)] "
s.reserveCapacity(10 + self.data.count * 2)
Self.hex.withUnsafeBufferPointer { hp in
@ -120,7 +120,7 @@ extension ApkIndexDigest: CustomStringConvertible {
}
#else
private static let hex = "0123456789ABCDEF".map(\.asciiValue!)
var description: String {
public var description: String {
Self.hex.withUnsafeBufferPointer { hp in
let hexChars = self.data.flatMap { b in
[hp[Int(b >> 4)], hp[Int(b & 15)]]

2
Sources/apk/Index/ApkIndexInstallIf.swift
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@ -3,7 +3,7 @@
* SPDX-License-Identifier: Apache-2.0
*/
struct ApkIndexInstallIf: Hashable {
public struct ApkIndexInstallIf: Hashable {
let requirement: ApkRequirement
init(requirement: ApkRequirement) {

48
Sources/apk/Index/ApkIndexPackage.swift
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@ -5,26 +5,26 @@
import Foundation
struct ApkIndexPackage: Hashable {
let indexChecksum: ApkIndexDigest
let name: String
let version: String
let architecture: String?
let packageSize: UInt64
let installedSize: UInt64
let packageDescription: String
let url: String
let license: String
let origin: String?
let maintainer: String?
let buildTime: Date?
let commit: String?
let providerPriority: UInt16?
let dependencies: [ApkIndexDependency]
let provides: [ApkIndexProvides]
let installIf: [ApkIndexInstallIf]
public struct ApkIndexPackage: Hashable {
public let indexChecksum: ApkIndexDigest
public let name: String
public let version: String
public let architecture: String?
public let packageSize: UInt64
public let installedSize: UInt64
public let packageDescription: String
public let url: String
public let license: String
public let origin: String?
public let maintainer: String?
public let buildTime: Date?
public let commit: String?
public let providerPriority: UInt16?
public let dependencies: [ApkIndexDependency]
public let provides: [ApkIndexProvides]
public let installIf: [ApkIndexInstallIf]
var downloadFilename: String { "\(self.name)-\(version).apk" }
public var downloadFilename: String { "\(self.name)-\(version).apk" }
//TODO: Implementation
//lazy var semanticVersion: (Int, Int, Int) = (0, 0, 0)
@ -167,8 +167,16 @@ extension ApkIndexPackage {
}
}
public extension ApkIndexPackage {
var shortDescription: String {
"\(self.name)-\(self.version) \(self.architecture ?? "")\n \\_ \(self.packageDescription)"
// ugrep/stable 3.11.2+dfsg-1 amd64
// faster grep with an interactive query UI
}
}
extension ApkIndexPackage: CustomStringConvertible {
var description: String {
public var description: String {
var s = String()
s += "index checksum: \(self.indexChecksum)\n"
s += "name: --------- \(self.name)\n"

2
Sources/apk/Index/ApkIndexProvides.swift
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@ -3,7 +3,7 @@
* SPDX-License-Identifier: Apache-2.0
*/
struct ApkIndexProvides: Hashable {
public struct ApkIndexProvides: Hashable {
let name: String
init(requirement: ApkRequirement) {

45
Sources/apk/Index/ApkIndexReading.swift Normal file
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@ -0,0 +1,45 @@
/*
* darwin-apk © 2024 Gay Pizza Specifications
* SPDX-License-Identifier: Apache-2.0
*/
import Foundation
public extension ApkIndex {
init(readFrom indexURL: URL) throws {
let file = try FileInputStream(indexURL)
var gzip = GZipReader()
var tarRecords = [TarReader.Entry]()
for tarData in try (0..<2).map({ _ in try gzip.read(inStream: file) }) {
let tarStream = MemoryInputStream(buffer: tarData)
tarRecords += try TarReader.read(tarStream)
}
guard case .file(let signatureName, _) = tarRecords.first else {
throw ApkIndexReadingError.missingSignature
}
guard let apkIndexFile = tarRecords.firstFile(name: "APKINDEX") else {
throw ApkIndexReadingError.missingIndex
}
guard let description = tarRecords.firstFile(name: "DESCRIPTION") else {
throw ApkIndexReadingError.missingDescription
}
try self.init(raw:
try ApkRawIndex(lines: MemoryInputStream(buffer: apkIndexFile).lines))
}
}
public enum ApkIndexReadingError: Error, LocalizedError {
case missingSignature
case missingIndex
case missingDescription
public var errorDescription: String? {
switch self {
case .missingSignature: "Missing signature"
case .missingIndex: "APKINDEX missing"
case .missingDescription: "DESCRIPTION missing"
}
}
}

30
Sources/apk/Index/ApkIndexRepository.swift Normal file
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@ -0,0 +1,30 @@
/*
* darwin-apk © 2024 Gay Pizza Specifications
* SPDX-License-Identifier: Apache-2.0
*/
import Foundation
import CryptoKit
public struct ApkIndexRepository {
public let name: String
public let arch: String
public let discriminator: String
private static func resolveApkIndex(_ repo: String, _ arch: String)
-> String { "\(repo)/\(arch)/APKINDEX.tar.gz" }
public var url: URL {
URL(string: Self.resolveApkIndex(self.name, self.arch))!
}
public var localName: String { "APKINDEX.\(discriminator).tar.gz" }
public init(name repo: String, arch: String) {
self.name = repo
self.arch = arch
let urlSHA1Digest = Data(Insecure.SHA1.hash(data: Data(Self.resolveApkIndex(repo, arch).utf8)))
self.discriminator = urlSHA1Digest.subdata(in: 0..<3).map { String(format: "%02x", $0) }.joined()
}
}

24
Sources/apk/Index/ApkIndexUpdate.swift
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@ -4,7 +4,6 @@
*/
import Foundation
import CryptoKit
public struct ApkIndexUpdater {
var repositories: [String]
@ -22,7 +21,7 @@ public struct ApkIndexUpdater {
public func update() {
let repositories = self.repositories.flatMap { repo in
self.architectures.map { arch in
Repository(name: repo, arch: arch)
ApkIndexRepository(name: repo, arch: arch)
}
}
@ -107,24 +106,3 @@ public struct ApkIndexUpdater {
try ApkRawIndex(lines: MemoryInputStream(buffer: apkIndexFile).lines))
}
}
extension ApkIndexUpdater {
struct Repository {
let name: String
let arch: String
let discriminator: String
private static func resolveApkIndex(_ repo: String, _ arch: String)
-> String { "\(repo)/\(arch)/APKINDEX.tar.gz" }
var url: URL { URL(string: Self.resolveApkIndex(self.name, self.arch))! }
var localName: String { "APKINDEX.\(discriminator).tar.gz" }
init(name repo: String, arch: String) {
self.name = repo
self.arch = arch
let urlSHA1Digest = Data(Insecure.SHA1.hash(data: Data(Self.resolveApkIndex(repo, arch).utf8)))
self.discriminator = urlSHA1Digest.subdata(in: 0..<3).map { String(format: "%02x", $0) }.joined()
}
}
}