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//===----------------------------------------------------------------------===//
//
// This source file is part of the Swift open source project
//
// Copyright (c) 2014-2020 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
import struct OrderedCollections.OrderedDictionary
import class PackageModel.Package
import class PackageModel.Product
import class PackageModel.Module
struct MermaidPackageSerializer {
let package: Package
var shouldIncludeLegend = false
var renderedMarkdown: String {
var subgraphs = OrderedDictionary<String, [Edge]>()
subgraphs[package.identity.description] = package.products.productTargetEdges
for edge in package.modules.targetDependencyEdges {
if let subgraph = edge.to.subgraph {
subgraphs[subgraph, default: []].append(edge)
} else {
subgraphs[package.identity.description]?.append(edge)
}
}
return """
```mermaid
flowchart TB
\(
shouldIncludeLegend ?
"""
subgraph legend
legend:target(target)
legend:product[[product]]
legend:dependency{{package dependency}}
end
""" : ""
)\(
subgraphs.map { subgraph, edges in
"""
subgraph \(subgraph)
\(
edges.map(\.description).joined(separator: "\n ")
)
end
"""
}.joined(separator: "\n\n ")
)
```
"""
}
fileprivate struct Node {
enum Border {
case roundedCorners
case doubled
case hexagon
func added(to title: String) -> String {
switch self {
case .roundedCorners:
"(\(title))"
case .doubled:
"[[\(title)]]"
case .hexagon:
"{{\(title)}}"
}
}
}
let id: String
let title: String
let border: Border
let subgraph: String?
}
fileprivate struct Edge {
let from: Node
let to: Node
}
}
extension MermaidPackageSerializer.Node {
init(id: String, title: String) {
self.id = id
self.border = .roundedCorners
self.title = title
self.subgraph = nil
}
init(product: Product) {
self.init(id: "product:\(product.name)", title: product.name, border: .doubled, subgraph: nil)
}
init(target: Module) {
self.init(id: "target:\(target.name)", title: target.name)
}
init(dependency: Module.Dependency) {
switch dependency {
case let .product(product, _):
self.init(
id: product.name,
title: product.name,
border: .hexagon,
subgraph: product.package
)
case let .module(target, _):
self.init(target: target)
}
}
}
extension MermaidPackageSerializer.Node: CustomStringConvertible {
var description: String {
"\(self.id)\(self.border.added(to: self.title))"
}
}
extension MermaidPackageSerializer.Edge {
init(product: Product, target: Module) {
self.from = .init(product: product)
self.to = .init(target: target)
}
}
extension MermaidPackageSerializer.Edge: CustomStringConvertible {
var description: String {
"\(self.from.description)-->\(self.to.description)"
}
}
extension [Product] {
fileprivate var productTargetEdges: [MermaidPackageSerializer.Edge] {
self.flatMap { product in
product.modules.map { target in (product, target) }
}.map(MermaidPackageSerializer.Edge.init)
}
}
extension [Module] {
fileprivate var targetDependencyEdges: [MermaidPackageSerializer.Edge] {
self.flatMap { target in
target.dependencies.map {
let dependencyNode = MermaidPackageSerializer.Node(dependency: $0)
return .init(
from: .init(target: target),
to: dependencyNode
)
}
}
}
}
|
