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Merge pull request #3 from twof/ComputerReadableOutput
Create computer readable output for ingestion by CI
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,5 @@ | ||
| repos: | ||
| - repo: https://github.com/twof/Downstream | ||
| rev: 0.0.6 | ||
| hooks: | ||
| - id: downstream | ||
| - repo: . | ||
| rev: HEAD | ||
| hooks: | ||
| - id: downstream |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,109 @@ | ||
| // | ||
| // File.swift | ||
| // | ||
| // | ||
| // Created by Alex Reilly on 10/24/20. | ||
| // | ||
|
|
||
| import ArgumentParser | ||
| import Foundation | ||
| import Files | ||
| import Yams | ||
|
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||
| enum OutputFormat: String, ExpressibleByArgument { | ||
| case json | ||
| case yaml | ||
| case list | ||
| case humanFriendly = "human" | ||
| } | ||
|
|
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| struct DownstreamArgument: ParsableCommand { | ||
| @Option(name: .shortAndLong, help: "The format of the output") | ||
| var outputFormat: OutputFormat? | ||
|
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| @Argument(help: "Input files") | ||
| var files: [String] | ||
|
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| mutating func run() throws { | ||
| let todoList = todos(fileList: self.files) | ||
| let output = outputFactory(todos: todoList, format: outputFormat) | ||
|
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| print(output) | ||
| } | ||
|
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| func todos(fileList: [String]) -> [String: [String]] { | ||
| let decoder = YAMLDecoder() | ||
|
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| return fileList.reduce(into: [String: [String]]()) { (result, filePath) in | ||
| let changedFile = try! File(path: filePath) | ||
|
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| if | ||
| let parent = changedFile.parent, | ||
| let downsteamYML = try? parent.file(named: "downstream.yml").read() | ||
| { | ||
| guard let associationsFile = try? decoder.decode(AssociationsFile.self, from: downsteamYML) else { | ||
| print("\(parent.path)downstream.yml could not be parsed") | ||
| DownstreamArgument.exit() | ||
| } | ||
| let fileName = changedFile.name | ||
| let newTodos = associationsFile.associations[fileName] | ||
| result[filePath] = newTodos | ||
| } | ||
| } | ||
| } | ||
|
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| /// Formats the todo list in the selected format type. Defaults to .humanFriendly if no format type is provided. | ||
| /// - Parameters: | ||
| /// - todos: Todo list in the form of changed file -> associated tasks | ||
| /// - format: How the list ought to be formatted. Defaults to .humanFriendly if no format type is provided | ||
| /// - Returns: Todo list formatted as desired. | ||
| func outputFactory(todos: [String: [String]], format: OutputFormat?) -> String { | ||
| let format = format ?? .humanFriendly | ||
|
|
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| switch format { | ||
| case .humanFriendly: | ||
| return humanReadableOutput(todos: todos) | ||
| case .json: | ||
| return jsonOutput(todos: todos) | ||
| case .yaml: | ||
| return yamlOutput(todos: todos) | ||
| case .list: | ||
| return listOutput(todos: todos) | ||
| } | ||
| } | ||
|
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| func humanReadableOutput(todos: [String: [String]]) -> String { | ||
| return todos.map { (filePath, todos) in | ||
| return "Due to changes made to \(filePath), you may need to make updates to the following: \n \(todos.joined(separator: "\n"))" | ||
| }.joined(separator: "\n") | ||
| } | ||
|
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| func jsonOutput(todos: [String: [String]]) -> String { | ||
| let encoder = JSONEncoder() | ||
| guard | ||
| let jsonData = try? encoder.encode(todos), | ||
| let jsonString = String(data: jsonData, encoding: .utf8) | ||
| else { | ||
| print("Todo list could not be encoded to JSON string. \n List: \(todos)") | ||
| Self.exit() | ||
| } | ||
|
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| return jsonString | ||
| } | ||
|
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| func yamlOutput(todos: [String: [String]]) -> String { | ||
| let encoder = YAMLEncoder() | ||
| guard | ||
| let yamlString = try? encoder.encode(todos) | ||
| else { | ||
| print("Todo list could not be encoded to YAML string. \n List: \(todos)") | ||
| Self.exit() | ||
| } | ||
|
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| return yamlString | ||
| } | ||
|
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| func listOutput(todos: [String: [String]]) -> String { | ||
| return Set(todos.values).map { $0.joined(separator: "\n") }.joined(separator: "\n") | ||
| } | ||
| } |
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