Move training to separate repo
This commit is contained in:
parent
c7327c8571
commit
ec21c06581
@ -1,6 +0,0 @@
|
||||
{
|
||||
"contentDirectory": "../Public",
|
||||
"trainingIterations": 20,
|
||||
"serverPath": "https://mydomain.com/caps",
|
||||
"authenticationToken": "mysecretkey",
|
||||
}
|
@ -1,521 +0,0 @@
|
||||
import Foundation
|
||||
import Cocoa
|
||||
import CreateML
|
||||
|
||||
struct Configuration: Codable {
|
||||
|
||||
let contentFolder: String
|
||||
|
||||
let trainingIterations: Int
|
||||
|
||||
let serverPath: String
|
||||
|
||||
let authenticationToken: String
|
||||
|
||||
init?(at url: URL) {
|
||||
do {
|
||||
let configData = try Data(contentsOf: url)
|
||||
self = try JSONDecoder().decode(Configuration.self, from: configData)
|
||||
} catch {
|
||||
print("[ERROR] Failed to load configuration at \(url.absoluteURL.path): \(error)")
|
||||
return nil
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
struct Cap: Codable {
|
||||
|
||||
let id: Int
|
||||
|
||||
let count: Int
|
||||
|
||||
enum CodingKeys: String, CodingKey {
|
||||
case id = "i"
|
||||
case count = "c"
|
||||
}
|
||||
}
|
||||
|
||||
final class ClassifierCreator {
|
||||
|
||||
static let configurationFileUrl = URL(fileURLWithPath: "config.json")
|
||||
|
||||
let server: URL
|
||||
|
||||
let configuration: Configuration
|
||||
|
||||
let imageDirectory: URL
|
||||
|
||||
let thumbnailDirectory: URL
|
||||
|
||||
let classifierUrl: URL
|
||||
|
||||
let df = DateFormatter()
|
||||
|
||||
|
||||
// MARK: Step 1: Load configuration
|
||||
|
||||
init?() {
|
||||
guard let configuration = Configuration(at: ClassifierCreator.configurationFileUrl) else {
|
||||
return nil
|
||||
}
|
||||
self.configuration = configuration
|
||||
guard let serverUrl = URL(string: configuration.serverPath) else {
|
||||
print("[ERROR] Configuration: Invalid server path \(configuration.serverPath)")
|
||||
return nil
|
||||
}
|
||||
self.server = serverUrl
|
||||
let contentDirectory = URL(fileURLWithPath: configuration.contentFolder)
|
||||
self.imageDirectory = contentDirectory.appendingPathComponent("images")
|
||||
self.classifierUrl = contentDirectory.appendingPathComponent("classifier.mlmodel")
|
||||
self.thumbnailDirectory = contentDirectory.appendingPathComponent("thumbnails")
|
||||
df.dateFormat = "yy-MM-dd-HH-mm-ss"
|
||||
}
|
||||
|
||||
// MARK: Main function
|
||||
|
||||
func run() async {
|
||||
let imagesSnapshotDate = Date()
|
||||
guard let (classes, changedImageCount, changedMainImages) = await loadImages() else {
|
||||
return
|
||||
}
|
||||
|
||||
guard !classes.isEmpty else {
|
||||
return
|
||||
}
|
||||
|
||||
guard changedImageCount > 0 else {
|
||||
print("[INFO] No changed images, so no new classifier trained")
|
||||
await createThumbnails(changed: changedMainImages)
|
||||
print("[INFO] Done")
|
||||
return
|
||||
}
|
||||
|
||||
guard let classifierVersion = await getClassifierVersion() else {
|
||||
return
|
||||
}
|
||||
let newVersion = classifierVersion + 1
|
||||
|
||||
print("[INFO] Image directory: \(imageDirectory.absoluteURL.path)")
|
||||
print("[INFO] Model path: \(classifierUrl.path)")
|
||||
print("[INFO] Version: \(newVersion)")
|
||||
print("[INFO] Classes: \(classes.count)")
|
||||
print("[INFO] Iterations: \(configuration.trainingIterations)")
|
||||
|
||||
guard trainModel() else {
|
||||
return
|
||||
}
|
||||
|
||||
guard await upload(version: newVersion) else {
|
||||
return
|
||||
}
|
||||
|
||||
guard await upload(classes: classes, lastUpdate: imagesSnapshotDate) else {
|
||||
return
|
||||
}
|
||||
await createThumbnails(changed: changedMainImages)
|
||||
print("[INFO] Done")
|
||||
}
|
||||
|
||||
// MARK: Step 2: Load changed images
|
||||
|
||||
func loadImages() async -> (classes: [Int], changedImageCount: Int, changedMainImages: [Int])? {
|
||||
guard createImageFolderIfMissing() else {
|
||||
return nil
|
||||
}
|
||||
let imageCounts = await getImageCounts()
|
||||
let missingImageList: [(cap: Int, image: Int)] = imageCounts
|
||||
.sorted { $0.key < $1.key }
|
||||
.reduce(into: []) { list, pair in
|
||||
let missingImagesForCap: [(cap: Int, image: Int)] = (0..<pair.value).compactMap { image in
|
||||
let url = imageUrl(base: imageDirectory, cap: pair.key, image: image)
|
||||
guard !FileManager.default.fileExists(atPath: url.path) else {
|
||||
return nil
|
||||
}
|
||||
return (cap: pair.key, image: image)
|
||||
}
|
||||
list.append(contentsOf: missingImagesForCap)
|
||||
}
|
||||
if missingImageList.isEmpty {
|
||||
print("[INFO] No missing images to load")
|
||||
} else {
|
||||
print("[INFO] Loading \(missingImageList.count) missing images...")
|
||||
}
|
||||
guard await loadImages(missingImageList) else {
|
||||
return nil
|
||||
}
|
||||
let changedImageList = await getChangedImageList()
|
||||
.filter { $0.image < imageCounts[$0.cap] ?? 0 } // Filter non-existent images
|
||||
|
||||
if changedImageList.isEmpty {
|
||||
print("[INFO] No changed images to load")
|
||||
} else {
|
||||
print("[INFO] Loading \(changedImageList.count) changed images...")
|
||||
}
|
||||
guard await loadImages(changedImageList) else {
|
||||
return nil
|
||||
}
|
||||
let changedMainImages = changedImageList.filter { $0.image == 0 }.map { $0.cap }
|
||||
let classes = imageCounts.keys.sorted()
|
||||
|
||||
// Delete any image folders not present as caps
|
||||
guard deleteUnnecessaryImageFolders(caps: classes) else {
|
||||
return nil
|
||||
}
|
||||
|
||||
return (classes, missingImageList.count + changedImageList.count, changedMainImages)
|
||||
}
|
||||
|
||||
private func createImageFolderIfMissing() -> Bool {
|
||||
createFolderIfMissing(imageDirectory)
|
||||
}
|
||||
|
||||
private func getImageCounts() async -> [Int : Int] {
|
||||
guard let data: Data = await get(server.appendingPathComponent("caps.json")) else {
|
||||
return [:]
|
||||
}
|
||||
do {
|
||||
return try JSONDecoder().decode([Cap].self, from: data)
|
||||
.reduce(into: [:]) { $0[$1.id] = $1.count }
|
||||
} catch {
|
||||
print("[ERROR] Failed to decode cap database: \(error)")
|
||||
return [:]
|
||||
}
|
||||
}
|
||||
|
||||
private func deleteUnnecessaryImageFolders(caps: [Int]) -> Bool {
|
||||
let validNames = caps.map { String(format: "%04d", $0) }
|
||||
let folders: [String]
|
||||
do {
|
||||
folders = try FileManager.default.contentsOfDirectory(atPath: imageDirectory.path)
|
||||
} catch {
|
||||
print("[ERROR] Failed to get list of image folders: \(error)")
|
||||
return false
|
||||
}
|
||||
for folder in folders {
|
||||
if validNames.contains(folder) {
|
||||
continue
|
||||
}
|
||||
|
||||
// Not a valid cap folder
|
||||
let url = imageDirectory.appendingPathComponent(folder)
|
||||
do {
|
||||
try FileManager.default.removeItem(at: url)
|
||||
print("[ERROR] Removed unused image folder '\(folder)'")
|
||||
} catch {
|
||||
print("[ERROR] Failed to delete unused image folder \(folder): \(error)")
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
private func imageUrl(base: URL, cap: Int, image: Int) -> URL {
|
||||
base.appendingPathComponent(String(format: "%04d/%04d-%02d.jpg", cap, cap, image))
|
||||
}
|
||||
|
||||
private func loadImage(cap: Int, image: Int) async -> Bool {
|
||||
guard createFolderIfMissing(imageDirectory.appendingPathComponent(String(format: "%04d", cap))) else {
|
||||
return false
|
||||
}
|
||||
let url = imageUrl(base: server.appendingPathComponent("images"), cap: cap, image: image)
|
||||
let tempFile: URL, response: URLResponse
|
||||
do {
|
||||
(tempFile, response) = try await URLSession.shared.download(from: url)
|
||||
} catch {
|
||||
print("[ERROR] Failed to load image \(image) of cap \(cap): \(error)")
|
||||
return false
|
||||
}
|
||||
let responseCode = (response as! HTTPURLResponse).statusCode
|
||||
guard responseCode == 200 else {
|
||||
print("[ERROR] Failed to load image \(image) of cap \(cap): Response \(responseCode)")
|
||||
return false
|
||||
}
|
||||
do {
|
||||
let localUrl = imageUrl(base: imageDirectory, cap: cap, image: image)
|
||||
if FileManager.default.fileExists(atPath: localUrl.path) {
|
||||
try FileManager.default.removeItem(at: localUrl)
|
||||
}
|
||||
try FileManager.default.moveItem(at: tempFile, to: localUrl)
|
||||
return true
|
||||
} catch {
|
||||
print("[ERROR] Failed to save image \(image) of cap \(cap): \(error)")
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
private func loadImages(_ list: [(cap: Int, image: Int)]) async -> Bool {
|
||||
guard !list.isEmpty else {
|
||||
return true
|
||||
}
|
||||
var loadedImages = 0
|
||||
await withTaskGroup(of: Bool.self) { group in
|
||||
for (cap, image) in list {
|
||||
group.addTask {
|
||||
await self.loadImage(cap: cap, image: image)
|
||||
}
|
||||
}
|
||||
for await loaded in group {
|
||||
if loaded {
|
||||
loadedImages += 1
|
||||
}
|
||||
}
|
||||
}
|
||||
if loadedImages != list.count {
|
||||
print("[ERROR] Only \(loadedImages) of \(list.count) images loaded")
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func getChangedImageList() async -> [(cap: Int, image: Int)] {
|
||||
guard let string: String = await get(server.appendingPathComponent("changes.txt")) else {
|
||||
print("[ERROR] Failed to get list of changed images")
|
||||
return []
|
||||
}
|
||||
|
||||
return string
|
||||
.components(separatedBy: "\n")
|
||||
.filter { $0 != "" }
|
||||
.compactMap {
|
||||
let parts = $0.components(separatedBy: ":")
|
||||
guard parts.count == 3 else {
|
||||
return nil
|
||||
}
|
||||
/*
|
||||
guard let date = df.date(from: parts[0]) else {
|
||||
print("[WARN] Invalid date \(parts[0]) in change list")
|
||||
return nil
|
||||
}
|
||||
*/
|
||||
guard let cap = Int(parts[1]) else {
|
||||
print("[WARN] Invalid cap id \(parts[1]) in change list")
|
||||
return nil
|
||||
}
|
||||
guard let image = Int(parts[2]) else {
|
||||
print("[WARN] Invalid image id \(parts[2]) in change list")
|
||||
return nil
|
||||
}
|
||||
return (cap, image)
|
||||
}
|
||||
}
|
||||
|
||||
// MARK: Step 3: Compute version
|
||||
|
||||
func getClassifierVersion() async -> Int? {
|
||||
guard let string: String = await get(server.appendingPathComponent("version")) else {
|
||||
print("[ERROR] Failed to get classifier version")
|
||||
return nil
|
||||
}
|
||||
guard let version = Int(string) else {
|
||||
print("[ERROR] Invalid classifier version \(string)")
|
||||
return nil
|
||||
}
|
||||
return version
|
||||
}
|
||||
|
||||
// MARK: Step 4: Train classifier
|
||||
|
||||
func trainModel() -> Bool {
|
||||
var params = MLImageClassifier.ModelParameters(augmentation: [])
|
||||
params.maxIterations = configuration.trainingIterations
|
||||
let model: MLImageClassifier
|
||||
do {
|
||||
model = try MLImageClassifier(
|
||||
trainingData: .labeledDirectories(at: imageDirectory),
|
||||
parameters: params)
|
||||
} catch {
|
||||
print("[ERROR] Failed to create classifier: \(error)")
|
||||
return false
|
||||
}
|
||||
|
||||
print("[INFO] Saving classifier...")
|
||||
do {
|
||||
try model.write(to: classifierUrl)
|
||||
return true
|
||||
} catch {
|
||||
print("[ERROR] Failed to save model to file: \(error)")
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
// MARK: Step 5: Upload classifier
|
||||
|
||||
func upload(version: Int) async -> Bool {
|
||||
print("[INFO] Uploading classifier...")
|
||||
let modelData: Data
|
||||
do {
|
||||
modelData = try Data(contentsOf: classifierUrl)
|
||||
} catch {
|
||||
print("[ERROR] Failed to read classifier data: \(error)")
|
||||
return false
|
||||
}
|
||||
|
||||
return await post(
|
||||
url: server.appendingPathComponent("classifier/\(version)"),
|
||||
body: modelData)
|
||||
}
|
||||
|
||||
// MARK: Step 6: Update classes
|
||||
|
||||
func upload(classes: [Int], lastUpdate: Date) async -> Bool {
|
||||
print("[INFO] Uploading trained classes...")
|
||||
let dateString = df.string(from: lastUpdate)
|
||||
return await post(
|
||||
url: server.appendingPathComponent("classes/\(dateString)"),
|
||||
body: classes.map(String.init).joined(separator: ",").data(using: .utf8)!)
|
||||
}
|
||||
|
||||
// MARK: Step 7: Create thumbnails
|
||||
|
||||
func createThumbnails(changed: [Int]) async {
|
||||
guard checkMagickAvailability() else {
|
||||
return
|
||||
}
|
||||
guard createFolderIfMissing(thumbnailDirectory) else {
|
||||
print("[ERROR] Failed to create folder for thumbnails")
|
||||
return
|
||||
}
|
||||
let capIdsOfMissingThumbnails = await getMissingThumbnailIds()
|
||||
let all = Set(capIdsOfMissingThumbnails).union(changed)
|
||||
print("[INFO] Creating \(all.count) thumbnails...")
|
||||
for cap in all {
|
||||
await createThumbnail(for: cap)
|
||||
}
|
||||
}
|
||||
|
||||
func checkMagickAvailability() -> Bool {
|
||||
do {
|
||||
let (code, output) = try safeShell("magick --version")
|
||||
guard code == 0, let version = output.components(separatedBy: "ImageMagick ").dropFirst().first?
|
||||
.components(separatedBy: " ").first else {
|
||||
print("[ERROR] Magick not found, install using 'brew install imagemagick'")
|
||||
return false
|
||||
}
|
||||
print("[INFO] Using magick \(version)")
|
||||
} catch {
|
||||
print("[ERROR] Failed to get version of magick: (\(error))")
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
private func getMissingThumbnailIds() async -> [Int] {
|
||||
guard let string: String = await get(server.appendingPathComponent("thumbnails/missing")) else {
|
||||
print("[ERROR] Failed to get missing thumbnails")
|
||||
return []
|
||||
}
|
||||
return string.components(separatedBy: ",").compactMap(Int.init)
|
||||
}
|
||||
|
||||
private func createThumbnail(for cap: Int) async {
|
||||
let inputUrl = imageUrl(base: imageDirectory, cap: cap, image: 0)
|
||||
guard FileManager.default.fileExists(atPath: inputUrl.path) else {
|
||||
print("[ERROR] Local main image not found for cap \(cap): \(inputUrl.path)")
|
||||
return
|
||||
}
|
||||
|
||||
let output = thumbnailDirectory.appendingPathComponent(String(format: "%04d.jpg", cap))
|
||||
do {
|
||||
let command = "magick convert \(inputUrl.path) -quality 70% -resize 100x100 \(output.path)"
|
||||
let (code, output) = try safeShell(command)
|
||||
if code != 0 {
|
||||
print("Failed to create thumbnail for cap \(cap): \(output)")
|
||||
return
|
||||
}
|
||||
} catch {
|
||||
print("Failed to read created thumbnail for cap \(cap): \(error)")
|
||||
return
|
||||
}
|
||||
|
||||
let data: Data
|
||||
do {
|
||||
data = try Data(contentsOf: output)
|
||||
} catch {
|
||||
print("Failed to read created thumbnail for cap \(cap): \(error)")
|
||||
return
|
||||
}
|
||||
guard await post(url: server.appendingPathComponent("thumbnails/\(cap)"), body: data) else {
|
||||
print("Failed to upload thumbnail for cap \(cap)")
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// MARK: Helper
|
||||
|
||||
@discardableResult
|
||||
private func safeShell(_ command: String) throws -> (code: Int32, output: String) {
|
||||
let task = Process()
|
||||
let pipe = Pipe()
|
||||
|
||||
task.standardOutput = pipe
|
||||
task.standardError = pipe
|
||||
task.arguments = ["-cl", command]
|
||||
task.executableURL = URL(fileURLWithPath: "/bin/zsh")
|
||||
task.standardInput = nil
|
||||
|
||||
try task.run()
|
||||
task.waitUntilExit()
|
||||
|
||||
let data = pipe.fileHandleForReading.readDataToEndOfFile()
|
||||
let output = String(data: data, encoding: .utf8)!
|
||||
return (task.terminationStatus, output)
|
||||
}
|
||||
|
||||
|
||||
private func createFolderIfMissing(_ folder: URL) -> Bool {
|
||||
guard !FileManager.default.fileExists(atPath: folder.path) else {
|
||||
return true
|
||||
}
|
||||
do {
|
||||
try FileManager.default.createDirectory(at: folder, withIntermediateDirectories: true)
|
||||
return true
|
||||
} catch {
|
||||
print("[ERROR] Failed to create directory \(folder.path): \(error)")
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
// MARK: Requests
|
||||
|
||||
private func post(url: URL, body: Data) async -> Bool {
|
||||
var request = URLRequest(url: url)
|
||||
request.httpMethod = "POST"
|
||||
request.httpBody = body
|
||||
request.addValue(configuration.authenticationToken, forHTTPHeaderField: "key")
|
||||
return await perform(request) != nil
|
||||
}
|
||||
|
||||
private func perform(_ request: URLRequest) async -> Data? {
|
||||
let data: Data
|
||||
let response: URLResponse
|
||||
do {
|
||||
(data, response) = try await URLSession.shared.data(for: request)
|
||||
} catch {
|
||||
print("[ERROR] Request to \(request.url!.absoluteString) failed: \(error)")
|
||||
return nil
|
||||
}
|
||||
let code = (response as! HTTPURLResponse).statusCode
|
||||
guard code == 200 else {
|
||||
print("[ERROR] Request to \(request.url!.absoluteString): Invalid response \(code)")
|
||||
return nil
|
||||
}
|
||||
return data
|
||||
}
|
||||
|
||||
private func get(_ url: URL) async -> Data? {
|
||||
await perform(URLRequest(url: url))
|
||||
}
|
||||
|
||||
private func get(_ url: URL) async -> String? {
|
||||
guard let data: Data = await get(url) else {
|
||||
return nil
|
||||
}
|
||||
guard let string = String(data: data, encoding: .utf8) else {
|
||||
print("[ERROR] Invalid string response \(data)")
|
||||
return nil
|
||||
}
|
||||
return string
|
||||
}
|
||||
}
|
||||
|
||||
await ClassifierCreator()?.run()
|
15
update.sh
15
update.sh
@ -1,15 +0,0 @@
|
||||
echo "[1/8] Stopping server..."
|
||||
sudo supervisorctl stop caps
|
||||
echo "[2/8] Changing permissions..."
|
||||
sudo chown -R pi:pi .
|
||||
echo "[3/8] Pulling changes..."
|
||||
git pull
|
||||
echo "[4/8] Updating dependencies..."
|
||||
swift package update
|
||||
echo "[5/8] Building project..."
|
||||
swift build -c release
|
||||
echo "[6/8] Restoring permissions..."
|
||||
sudo chown -R www-data:www-data .
|
||||
echo "[7/8] Starting server..."
|
||||
sudo supervisorctl start caps
|
||||
echo "[8/8] Done"
|
Loading…
Reference in New Issue
Block a user