Hermes
1025634978
Build iOS App / Build .ipa and publish source (push) Failing after 35s
Multi-repo PR inbox, review (approve/request changes/comment), merge with gating toggle, read-only diff viewer, and Gitea Actions check status with one-tap re-run. Ships unsigned via the iMac runner to the SideStore source.
80 lines
2.8 KiB
Swift
80 lines
2.8 KiB
Swift
import SwiftUI
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/// Read-only unified diff viewer for a single changed file.
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///
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/// Parses a Gitea unified diff patch into line hunks so added/deleted lines can
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/// be colour-coded. Gitea only returns `patch` for small diffs; large files
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/// fall back to a raw text view.
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struct DiffView: View {
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let file: ChangedFile
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var body: some View {
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Group {
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if let patch = file.patch, !patch.isEmpty {
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ScrollView([.horizontal, .vertical]) {
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LazyVStack(alignment: .leading, spacing: 0) {
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ForEach(parse(patch)) { line in
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diffLine(line)
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}
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}
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.font(.caption.monospaced())
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}
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} else {
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ContentUnavailableView(
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"Diff too large to preview",
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systemImage: "doc.text",
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description: Text("Gitea didn't return a patch for this file."))
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}
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}
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.navigationTitle(file.filename)
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.navigationBarTitleDisplayMode(.inline)
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}
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private func diffLine(_ line: DiffLine) -> some View {
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Text(line.text)
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.frame(maxWidth: .infinity, alignment: .leading)
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.padding(.horizontal, 8)
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.padding(.vertical, 1)
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.background(background(for: line.type))
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.foregroundColor(foreground(for: line.type))
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}
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private func background(for type: DiffLineType) -> Color {
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switch type {
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case .addition: return Color.green.opacity(0.15)
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case .deletion: return Color.red.opacity(0.15)
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case .hunk, .meta: return Color(.secondarySystemBackground)
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case .context: return .clear
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}
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}
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private func foreground(for type: DiffLineType) -> Color {
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switch type {
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case .addition: return .green
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case .deletion: return .red
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case .hunk: return .secondary
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case .meta, .context: return .primary
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}
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}
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private func parse(_ patch: String) -> [DiffLine] {
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patch.components(separatedBy: "\n").map { line in
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if line.hasPrefix("@@") { return DiffLine(text: line, type: .hunk) }
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if line.hasPrefix("diff ") || line.hasPrefix("index ")
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|| line.hasPrefix("--- ") || line.hasPrefix("+++ ") {
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return DiffLine(text: line, type: .meta)
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}
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if line.hasPrefix("+") { return DiffLine(text: line, type: .addition) }
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if line.hasPrefix("-") { return DiffLine(text: line, type: .deletion) }
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return DiffLine(text: line, type: .context)
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}
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}
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}
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private enum DiffLineType { case context, addition, deletion, hunk, meta }
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private struct DiffLine: Identifiable {
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let text: String
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let type: DiffLineType
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var id: UUID { UUID() }
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}
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