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f69cec36ac
commit
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8 changed files with 407 additions and 395 deletions
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@ -1,23 +1,21 @@
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//
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// Copyright © 2024 Salar Rahmanian.
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//
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Foundation
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/// Make a backup of the fish history.
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///
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/// ```
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@ -31,32 +29,32 @@ import Foundation
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///
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/// - Returns: true if backup copy successful, false if not.
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func backupHistory(_ path: String) -> Bool {
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let fileManager = FileManager.default
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guard fileManager.fileExists(atPath: path) else {
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print("File does not exist at path: \(path)")
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return false
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}
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let fileURL = URL(fileURLWithPath: path)
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let fileExtension = fileURL.pathExtension
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let fileNameWithoutExtension = fileURL.deletingPathExtension().lastPathComponent
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let directory = fileURL.deletingLastPathComponent()
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let newFileName = "\(fileNameWithoutExtension)_copy"
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let newFileURL = directory.appendingPathComponent(newFileName).appendingPathExtension(fileExtension)
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do {
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try? fileManager.removeItem(at: newFileURL)
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try fileManager.copyItem(at: fileURL, to: newFileURL)
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print("File duplicated successfully to: \(newFileURL.path)")
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return true
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} catch {
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print("error making a backup of \(path), got error: \(error)")
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return false
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}
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}
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let fileManager = FileManager.default
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guard fileManager.fileExists(atPath: path) else {
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print("File does not exist at path: \(path)")
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return false
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}
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let fileURL = URL(fileURLWithPath: path)
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let fileExtension = fileURL.pathExtension
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let fileNameWithoutExtension = fileURL.deletingPathExtension().lastPathComponent
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let directory = fileURL.deletingLastPathComponent()
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let newFileName = "\(fileNameWithoutExtension)_copy"
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let newFileURL = directory.appendingPathComponent(newFileName).appendingPathExtension(
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fileExtension)
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do {
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try? fileManager.removeItem(at: newFileURL)
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try fileManager.copyItem(at: fileURL, to: newFileURL)
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print("File duplicated successfully to: \(newFileURL.path)")
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return true
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} catch {
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print("error making a backup of \(path), got error: \(error)")
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return false
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}
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}
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/// Write fish history to file.
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///
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@ -67,32 +65,31 @@ func backupHistory(_ path: String) -> Bool {
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///
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/// - Returns: true if writing to file copy successful, false if not.
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func writeFishHistory(to path: String, history: [FishHistoryEntry], backup: Bool = true) -> Bool {
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var output = ""
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if backup {
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let result = backupHistory(path)
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if !result {
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print("Failed to backup \(path) so aborting!")
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return false
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}
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var output = ""
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if backup {
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let result = backupHistory(path)
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if !result {
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print("Failed to backup \(path) so aborting!")
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return false
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}
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history.forEach { output += $0.writeEntry().joined(separator: "\n") + "\n" }
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if !output.isEmpty {
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do {
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try output.write(toFile: path, atomically: true, encoding: .utf8)
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print("Successfully wrote merged history to \(path)")
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return true
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} catch {
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print("Error writing merged history: \(error)")
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return false
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}
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}
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else {
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print("Nothing to write to \(path)")
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return false
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}
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history.forEach { output += $0.writeEntry().joined(separator: "\n") + "\n" }
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if !output.isEmpty {
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do {
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try output.write(toFile: path, atomically: true, encoding: .utf8)
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print("Successfully wrote merged history to \(path)")
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return true
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} catch {
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print("Error writing merged history: \(error)")
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return false
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}
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} else {
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print("Nothing to write to \(path)")
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return false
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}
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}
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/// Parse the fish history file.
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@ -102,41 +99,45 @@ func writeFishHistory(to path: String, history: [FishHistoryEntry], backup: Bool
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///
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/// - Returns: List of ``FishHistoryEntry`` entries from history file.
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func parseFishHistory(from filePath: String) -> [FishHistoryEntry]? {
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guard let fileContents = try? String(contentsOfFile: filePath, encoding: .utf8) else {
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print("Failed to open file.")
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return nil
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}
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let lines = fileContents.split(separator: "\n").map { String($0).trimmingCharacters(in: .whitespaces) }
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guard let fileContents = try? String(contentsOfFile: filePath, encoding: .utf8) else {
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print("Failed to open file.")
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return nil
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}
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let initialState: (entries: [FishHistoryEntry], currentCmd: String?, currentWhen: Int?, currentPaths: [String]) = ([], nil, nil, [])
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let result = lines.reduce(into: initialState) { state, line in
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if line.starts(with: "- cmd:") {
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if let cmd = state.currentCmd, let when = state.currentWhen {
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let entry = FishHistoryEntry(cmd: cmd, when: when, paths: state.currentPaths)
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state.entries.append(entry)
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state.currentPaths = []
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}
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state.currentCmd = String(line.dropFirst("- cmd:".count).trimmingCharacters(in: .whitespaces))
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} else if line.starts(with: "when:") {
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if let whenValue = Int(line.dropFirst("when:".count).trimmingCharacters(in: .whitespaces)) {
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state.currentWhen = whenValue
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}
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} else if line.starts(with: "paths:") {
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return
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} else if line.starts(with: "- ") {
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let path = String(line.dropFirst("- ".count).trimmingCharacters(in: .whitespaces))
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state.currentPaths.append(path)
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}
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let lines = fileContents.split(separator: "\n").map {
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String($0).trimmingCharacters(in: .whitespaces)
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}
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let initialState:
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(entries: [FishHistoryEntry], currentCmd: String?, currentWhen: Int?, currentPaths: [String]) =
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([], nil, nil, [])
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let result = lines.reduce(into: initialState) { state, line in
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if line.starts(with: "- cmd:") {
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if let cmd = state.currentCmd, let when = state.currentWhen {
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let entry = FishHistoryEntry(cmd: cmd, when: when, paths: state.currentPaths)
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state.entries.append(entry)
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state.currentPaths = []
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}
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state.currentCmd = String(line.dropFirst("- cmd:".count).trimmingCharacters(in: .whitespaces))
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} else if line.starts(with: "when:") {
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if let whenValue = Int(line.dropFirst("when:".count).trimmingCharacters(in: .whitespaces)) {
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state.currentWhen = whenValue
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}
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} else if line.starts(with: "paths:") {
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return
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} else if line.starts(with: "- ") {
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let path = String(line.dropFirst("- ".count).trimmingCharacters(in: .whitespaces))
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state.currentPaths.append(path)
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}
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if let cmd = result.currentCmd, let when = result.currentWhen {
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let entry = FishHistoryEntry(cmd: cmd, when: when, paths: result.currentPaths)
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return result.entries + [entry]
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}
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return result.entries
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}
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if let cmd = result.currentCmd, let when = result.currentWhen {
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let entry = FishHistoryEntry(cmd: cmd, when: when, paths: result.currentPaths)
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return result.entries + [entry]
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}
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return result.entries
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}
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/// Merge two given ``FishHistoryEntry`` lists into one list.
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@ -147,18 +148,20 @@ func parseFishHistory(from filePath: String) -> [FishHistoryEntry]? {
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/// - removeDuplicates: if true, remove any duplicates found after merging the two lists.
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///
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/// - Returns: Single list of ``FishHistoryEntry`` entries.
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func mergeFishHistory(_ left: [FishHistoryEntry], _ right: [FishHistoryEntry], removeDuplicates: Bool = false) -> [FishHistoryEntry] {
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let merged = left + right
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if removeDuplicates {
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let finalList = merged.reduce(into: [String:FishHistoryEntry]()) { result, entry in
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if result[entry.cmd] == nil {
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result[entry.cmd] = entry
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}
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}
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return Array(finalList.values)
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} else {
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return merged
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func mergeFishHistory(
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_ left: [FishHistoryEntry], _ right: [FishHistoryEntry], removeDuplicates: Bool = false
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) -> [FishHistoryEntry] {
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let merged = left + right
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if removeDuplicates {
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let finalList = merged.reduce(into: [String: FishHistoryEntry]()) { result, entry in
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if result[entry.cmd] == nil {
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result[entry.cmd] = entry
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}
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}
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return Array(finalList.values)
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} else {
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return merged
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}
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}
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