annotate hg-web/src/components/app.tsx @ 223:0e7b9464248d hg-web

[hg-web] Add browser route regression coverage
author MrJuneJune <me@mrjunejune.com>
date Sun, 02 Aug 2026 10:07:40 -0700
parents ce7f4400c2de
children 70de0c80d093
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1 import React, { useState, useEffect, useCallback } from 'react';
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2 import { Graph, useGraphData } from "hg-web/src/components/graph";
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3 import { DirectoryBrowser } from "hg-web/src/components/directory-browser";
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4 import { Header } from "hg-web/src/components/header";
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5 import { Footer } from "hg-web/src/components/footer";
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6 import { ThemeProvider, useTheme } from "hg-web/src/components/theme";
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7
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8 type Page = 'landing' | 'graph' | 'directory' | 'changeset';
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9
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10 type RouteState = {
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11 page: Page;
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12 graphCommit?: string;
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13 graphTip?: string;
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14 dirPath?: string;
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15 changesetId?: string;
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16 returnDepth?: number;
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17 }
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18
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19 type ChangesetDetail = {
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20 node: string;
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21 date: [number, number];
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22 desc: string;
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23 branch: string;
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24 bookmarks: string[];
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25 tags: string[];
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26 user: string;
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27 parents: string[];
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28 files: Array<{
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29 file: string;
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30 status: string;
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31 }>;
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32 diff: Array<{
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33 blockno: number;
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34 lines: Array<{ t: string; n: number; l: string }>;
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35 }>;
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36 };
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37
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38 // Icons
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39 const ICONS = {
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40 folder: "/icons/folder.png",
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41 };
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42
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43 const GraphIcon = () => (
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44 <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
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45 <circle cx="6" cy="6" r="3"/>
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46 <circle cx="6" cy="18" r="3"/>
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47 <circle cx="18" cy="12" r="3"/>
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48 <line x1="6" y1="9" x2="6" y2="15"/>
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49 <path d="M8.5 7.5L15.5 11"/>
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50 </svg>
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51 );
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52
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53 const FolderIcon = () => (
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54 <svg width="20" height="20" viewBox="0 0 24 24" fill="currentColor" stroke="none">
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55 <path d="M10 4H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h16c1.1 0 2-.9 2-2V8c0-1.1-.9-2-2-2h-8l-2-2z"/>
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56 </svg>
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57 );
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58
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59 const API_BASE = '/api/repo';
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60
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61 function parseRoute(): RouteState {
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62 const params = new URLSearchParams(window.location.search);
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63 const pathname = window.location.pathname;
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64 const changesetMatch = pathname.match(/^\/changeset\/([^/]+)$/);
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65
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66 if (changesetMatch) {
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67 try {
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68 const changesetId = decodeURIComponent(changesetMatch[1]);
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69 if (/^(?:[0-9a-f]{1,40}|tip)$/i.test(changesetId)) {
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70 return { page: 'changeset', changesetId };
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71 }
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72 } catch {
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73 return { page: 'landing' };
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74 }
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75 }
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76
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77 if (pathname.startsWith('/graph') || params.has('graph')) {
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78 return {
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79 page: 'graph',
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80 graphCommit: params.get('commit') || undefined,
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81 graphTip: params.get('tip') || undefined,
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82 };
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83 }
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84
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85 if (pathname.startsWith('/directory') || params.has('path')) {
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86 return {
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87 page: 'directory',
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88 dirPath: params.get('path') || '',
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89 };
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90 }
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91
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92 return { page: 'landing' };
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93 }
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94
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95 function buildUrl(state: RouteState): string {
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96 const params = new URLSearchParams();
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97
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98 switch (state.page) {
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99 case 'graph':
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100 if (state.graphCommit) params.set('commit', state.graphCommit);
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101 if (state.graphTip) params.set('tip', state.graphTip);
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102 return `/graph${params.toString() ? '?' + params.toString() : ''}`;
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103 case 'directory':
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104 if (state.dirPath) params.set('path', state.dirPath);
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105 return `/directory${params.toString() ? '?' + params.toString() : ''}`;
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106 case 'changeset':
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107 return state.changesetId ? `/changeset/${encodeURIComponent(state.changesetId)}` : '/graph';
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108 default:
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109 return '/';
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110 }
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111 }
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112
223
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113 function isRouteState(value: unknown): value is RouteState {
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114 if (!value || typeof value !== 'object' || !('page' in value)) return false;
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115 return ['landing', 'graph', 'directory', 'changeset'].includes(
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116 String((value as { page: unknown }).page),
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117 );
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118 }
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119
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120 // Landing Page Component
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121 function LandingPage({
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122 onNavigateToGraph,
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123 onNavigateToDirectory,
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124 onNavigateToChangeset,
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125 }: {
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126 onNavigateToGraph: () => void;
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127 onNavigateToDirectory: (path?: string) => void;
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128 onNavigateToChangeset: (node: string) => void;
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129 }) {
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130 const [directories, setDirectories] = useState<any[]>([]);
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131 const [files, setFiles] = useState<any[]>([]);
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132 const [dirLoading, setDirLoading] = useState(true);
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133
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134 const { data: graphData, loading: graphLoading } = useGraphData();
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135
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136 useEffect(() => {
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137 fetch(`${API_BASE}/list`)
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138 .then(r => r.json())
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139 .then(data => {
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140 setDirectories(data.directories || []);
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141 setFiles(data.files || []);
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142 setDirLoading(false);
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143 })
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144 .catch(() => setDirLoading(false));
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145 }, []);
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146
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147 const previewItems = [
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148 ...directories.slice(0, 6),
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149 ...files.slice(0, Math.max(0, 6 - directories.length))
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150 ].slice(0, 6);
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151
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152 return (
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153 <div className="landing-grid">
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154 {/* Graph Preview */}
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155 <div className="landing-section">
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156 <div className="landing-section-header">
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157 <span className="landing-section-title">
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158 <GraphIcon />
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159 Recent Commits
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160 </span>
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161 <a href="/graph" className="landing-section-link" onClick={(e) => {
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162 e.preventDefault();
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163 onNavigateToGraph();
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164 }}>
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165 View all
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166 </a>
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167 </div>
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168 <div className="landing-section-content">
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169 {graphLoading ? (
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170 <div className="loading-state">Loading commits...</div>
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171 ) : graphData ? (
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172 <Graph
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173 data={graphData}
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174 maxRows={8}
221
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175 onCommitClick={onNavigateToChangeset}
193
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176 />
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177 ) : (
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178 <div className="empty-state">Failed to load commits</div>
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179 )}
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180 </div>
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181 </div>
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182
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183 {/* Directory Preview */}
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184 <div className="landing-section">
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185 <div className="landing-section-header">
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186 <span className="landing-section-title">
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187 <FolderIcon />
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188 Repository Files
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189 </span>
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190 <a href="/directory" className="landing-section-link" onClick={(e) => {
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191 e.preventDefault();
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192 onNavigateToDirectory();
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193 }}>
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194 Browse all
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195 </a>
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196 </div>
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197 <div className="landing-section-content">
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198 {dirLoading ? (
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199 <div className="loading-state">Loading files...</div>
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200 ) : previewItems.length > 0 ? (
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201 previewItems.map((item) => (
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202 <div
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203 key={item.abspath}
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204 className="dir-item"
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205 onClick={() => onNavigateToDirectory(item.abspath)}
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206 >
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207 <span className="dir-item-icon">
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208 <img
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209 className="icon-invert"
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210 src={directories.includes(item) ? ICONS.folder : "/icons/file.svg"}
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211 alt=""
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212 />
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213 </span>
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214 <span className="dir-item-name">{item.basename}</span>
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215 </div>
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216 ))
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217 ) : (
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218 <div className="empty-state">No files found</div>
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219 )}
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220 </div>
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221 </div>
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222 </div>
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223 );
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224 }
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225
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226 // Graph Page Component
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227 function GraphPage({
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228 onBack,
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229 initialCommit,
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230 initialTip,
221
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231 onOpenChangeset,
193
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232 }: {
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233 onBack: () => void;
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234 initialCommit?: string;
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235 initialTip?: string;
221
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236 onOpenChangeset: (node: string) => void;
193
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237 }) {
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238 const { data, loading, error, loadMore, hasMore, tip, currentCommit } = useGraphData({
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239 initialCommit: initialCommit || null,
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240 graphTop: initialTip || null,
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241 });
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242
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243 useEffect(() => {
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244 if (tip && currentCommit) {
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245 const params = new URLSearchParams();
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246 params.set('commit', currentCommit);
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247 params.set('tip', tip);
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248 const newUrl = `/graph?${params.toString()}`;
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249 window.history.replaceState({ page: 'graph', graphCommit: currentCommit, graphTip: tip }, '', newUrl);
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250 }
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251 }, [currentCommit, tip]);
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252
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253 return (
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254 <div>
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255 <div className="page-header">
223
0e7b9464248d [hg-web] Add browser route regression coverage
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diff changeset
256 <button className="back-button" onClick={onBack} aria-label="Back">
193
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257 &larr; Back
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258 </button>
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259 <span className="page-title">Commit Graph</span>
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260 </div>
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261
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262 {tip && (
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263 <div className="graph-params">
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264 <span className="graph-param">
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265 <span className="graph-param-label">Tip:</span>
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266 <span className="graph-param-value">{tip.substring(0, 12)}</span>
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267 </span>
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268 {currentCommit && currentCommit !== tip && (
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269 <span className="graph-param">
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270 <span className="graph-param-label">Current:</span>
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271 <span className="graph-param-value">{currentCommit.substring(0, 12)}</span>
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272 </span>
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273 )}
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274 </div>
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275 )}
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276
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277 {error && (
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278 <div className="error-message">Error: {error}</div>
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279 )}
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280
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281 <Graph
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282 data={data}
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283 loading={loading}
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284 hasMore={hasMore}
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285 onLoadMore={loadMore}
221
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diff changeset
286 onCommitClick={onOpenChangeset}
193
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287 />
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288 </div>
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289 );
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290 }
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291
221
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diff changeset
292 function ChangesetPage({
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diff changeset
293 changesetId,
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diff changeset
294 onBack,
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diff changeset
295 onOpenChangeset,
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diff changeset
296 }: {
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diff changeset
297 changesetId: string;
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diff changeset
298 onBack: () => void;
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diff changeset
299 onOpenChangeset: (node: string) => void;
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diff changeset
300 }) {
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diff changeset
301 const [changeset, setChangeset] = useState<ChangesetDetail | null>(null);
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diff changeset
302 const [loading, setLoading] = useState(true);
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diff changeset
303 const [error, setError] = useState<string | null>(null);
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304
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305 useEffect(() => {
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306 const controller = new AbortController();
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307
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308 setLoading(true);
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309 setError(null);
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310 setChangeset(null);
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311
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312 fetch(`/api/changeset/${encodeURIComponent(changesetId)}`, { signal: controller.signal })
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313 .then(async response => {
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314 if (!response.ok) {
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315 const message = await response.text();
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316 throw new Error(message || `Unable to load changeset (${response.status})`);
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317 }
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318 return response.json() as Promise<ChangesetDetail>;
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319 })
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320 .then(setChangeset)
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321 .catch(err => {
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322 if (err.name !== 'AbortError') setError(err.message);
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323 })
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324 .finally(() => {
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325 if (!controller.signal.aborted) setLoading(false);
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326 });
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327
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328 return () => controller.abort();
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329 }, [changesetId]);
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330
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331 return (
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332 <div>
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333 <div className="page-header">
223
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334 <button className="back-button" onClick={onBack} aria-label="Back">
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335 &larr; Back
221
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336 </button>
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337 <span className="page-title">Changeset</span>
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338 </div>
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339
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340 {loading && <div className="loading-state">Loading changeset...</div>}
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341 {error && <div className="error-message">Error: {error}</div>}
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342
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343 {changeset && (
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344 <article className="changeset-paper">
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345 <div className="changeset-heading">
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346 <code>{changeset.node}</code>
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347 <span className="changeset-branch">{changeset.branch}</span>
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348 </div>
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349 <h2>{changeset.desc}</h2>
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350 <div className="changeset-meta">
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351 <span>{changeset.user}</span>
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352 <time dateTime={new Date(changeset.date[0] * 1000).toISOString()}>
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353 {new Date(changeset.date[0] * 1000).toLocaleString()}
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354 </time>
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355 </div>
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356
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357 {(changeset.bookmarks.length > 0 || changeset.tags.length > 0) && (
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358 <div className="changeset-labels">
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359 {changeset.bookmarks.map(bookmark => <span key={`bookmark-${bookmark}`}>{bookmark}</span>)}
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360 {changeset.tags.map(tag => <span key={`tag-${tag}`}>{tag}</span>)}
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361 </div>
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362 )}
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363
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364 {changeset.parents.length > 0 && (
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365 <div className="changeset-parents">
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366 <strong>Parents</strong>
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367 {changeset.parents.map(parent => (
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368 <button type="button" key={parent} onClick={() => onOpenChangeset(parent)}>
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369 {parent.substring(0, 12)}
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370 </button>
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371 ))}
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372 </div>
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373 )}
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374
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375 {changeset.files.length > 0 && (
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376 <div className="changeset-files">
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377 <strong>Files</strong>
223
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378 {changeset.files.map(file => (
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379 <code key={file.file}>
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380 <span className={`changeset-file-status status-${file.status}`}>
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381 {file.status}
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382 </span>
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383 {file.file}
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diff changeset
384 </code>
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385 ))}
221
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diff changeset
386 </div>
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387 )}
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388
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389 <section className="changeset-diff" aria-label="Changeset diff">
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diff changeset
390 <h3>Diff</h3>
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391 {changeset.diff.length === 0 ? (
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392 <div className="empty-state">No textual changes in this changeset.</div>
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diff changeset
393 ) : changeset.diff.map(block => (
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diff changeset
394 <pre key={block.blockno}>
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395 {block.lines.map((line, index) => (
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396 <span
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397 key={`${line.n}-${index}`}
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398 className={
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399 line.t === '+' ? 'diff-add' :
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diff changeset
400 line.t === '-' ? 'diff-remove' :
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diff changeset
401 line.t === '@' ? 'diff-range' : 'diff-context'
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402 }
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403 >
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404 <span className="diff-line-number">{line.n}</span>
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diff changeset
405 <span>{line.l}</span>
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406 </span>
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407 ))}
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408 </pre>
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409 ))}
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410 </section>
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411 </article>
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412 )}
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diff changeset
413 </div>
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414 );
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415 }
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416
193
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417 // Directory Page Component
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418 function DirectoryPage({
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419 onBack,
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420 initialPath,
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421 onPathChange,
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422 }: {
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423 onBack: () => void;
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424 initialPath?: string;
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425 onPathChange: (path: string) => void;
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426 }) {
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427 return (
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428 <div>
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429 <div className="page-header">
223
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diff changeset
430 <button className="back-button" onClick={onBack} aria-label="Back">
193
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431 &larr; Back
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432 </button>
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433 <span className="page-title">Repository Files</span>
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434 </div>
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435
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436 <DirectoryBrowser
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437 initialPath={initialPath}
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438 onPathChange={onPathChange}
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439 />
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440 </div>
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441 );
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442 }
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443
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444 // Main App Content (uses theme context)
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445 function AppContent() {
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446 const [route, setRoute] = useState<RouteState>(parseRoute);
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447 const { isDark, toggleTheme } = useTheme();
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448
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449 // Handle browser back/forward
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450 useEffect(() => {
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451 const handlePopState = (event: PopStateEvent) => {
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452 setRoute(isRouteState(event.state) ? event.state : parseRoute());
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453 };
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454 window.addEventListener('popstate', handlePopState);
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455 return () => window.removeEventListener('popstate', handlePopState);
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456 }, []);
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457
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458 const navigate = useCallback((newRoute: RouteState) => {
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459 const url = buildUrl(newRoute);
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460 window.history.pushState(newRoute, '', url);
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461 setRoute(newRoute);
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462 }, []);
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463
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464 const navigateToLanding = useCallback(() => {
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465 navigate({ page: 'landing' });
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466 }, [navigate]);
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467
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468 const navigateToGraph = useCallback((commit?: string, tip?: string) => {
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469 navigate({ page: 'graph', graphCommit: commit, graphTip: tip });
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470 }, [navigate]);
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471
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472 const navigateToDirectory = useCallback((path?: string) => {
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473 navigate({ page: 'directory', dirPath: path || '' });
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474 }, [navigate]);
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475
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476 const navigateToChangeset = useCallback((changesetId: string) => {
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477 const returnDepth = route.page === 'changeset'
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478 ? (route.returnDepth ?? 0) + 1
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479 : 1;
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480 navigate({ page: 'changeset', changesetId, returnDepth });
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481 }, [navigate, route.page, route.returnDepth]);
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482
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483 const navigateBackFromChangeset = useCallback(() => {
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484 if (route.returnDepth !== undefined && route.returnDepth > 0) {
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485 window.history.go(-route.returnDepth);
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486 return;
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487 }
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488 navigateToGraph();
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489 }, [navigateToGraph, route.returnDepth]);
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490
193
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491 const handleDirectoryPathChange = useCallback((path: string) => {
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492 // Update URL without full navigation
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493 const params = new URLSearchParams();
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494 if (path) params.set('path', path);
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495 const newUrl = `/directory${params.toString() ? '?' + params.toString() : ''}`;
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496 window.history.replaceState({ page: 'directory', dirPath: path }, '', newUrl);
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497 setRoute(prev => ({ ...prev, dirPath: path }));
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498 }, []);
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499
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500 return (
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501 <div className="app-container">
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502 <Header
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503 title="Zenbu Repository"
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504 showThemeToggle={true}
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505 isDark={isDark}
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506 onToggleTheme={toggleTheme}
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507 />
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508
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509 {/* Navigation Tabs */}
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510 <div className="nav-tabs">
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511 <button
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512 className={`nav-tab ${route.page === 'landing' ? 'active' : ''}`}
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513 onClick={navigateToLanding}
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514 >
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515 Home
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516 </button>
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517 <button
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diff changeset
518 className={`nav-tab ${route.page === 'graph' || route.page === 'changeset' ? 'active' : ''}`}
193
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519 onClick={() => navigateToGraph()}
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520 >
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521 <GraphIcon />
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522 Graph
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523 </button>
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524 <button
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525 className={`nav-tab ${route.page === 'directory' ? 'active' : ''}`}
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526 onClick={() => navigateToDirectory()}
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527 >
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diff changeset
528 <FolderIcon />
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529 Files
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530 </button>
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531 </div>
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532
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533 {/* Page Content */}
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534 {route.page === 'landing' && (
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535 <LandingPage
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536 onNavigateToGraph={() => navigateToGraph()}
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537 onNavigateToDirectory={navigateToDirectory}
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538 onNavigateToChangeset={navigateToChangeset}
193
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539 />
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540 )}
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diff changeset
541
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542 {route.page === 'graph' && (
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543 <GraphPage
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544 onBack={navigateToLanding}
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545 initialCommit={route.graphCommit}
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546 initialTip={route.graphTip}
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547 onOpenChangeset={navigateToChangeset}
193
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548 />
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549 )}
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550
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551 {route.page === 'directory' && (
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552 <DirectoryPage
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553 onBack={navigateToLanding}
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554 initialPath={route.dirPath}
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diff changeset
555 onPathChange={handleDirectoryPathChange}
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diff changeset
556 />
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diff changeset
557 )}
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diff changeset
558
221
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diff changeset
559 {route.page === 'changeset' && route.changesetId && (
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diff changeset
560 <ChangesetPage
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diff changeset
561 changesetId={route.changesetId}
223
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diff changeset
562 onBack={navigateBackFromChangeset}
221
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diff changeset
563 onOpenChangeset={navigateToChangeset}
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diff changeset
564 />
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diff changeset
565 )}
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diff changeset
566
193
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diff changeset
567 <Footer />
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parents:
diff changeset
568 </div>
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diff changeset
569 );
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diff changeset
570 }
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parents:
diff changeset
571
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parents:
diff changeset
572 // App wrapper with ThemeProvider
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diff changeset
573 function App() {
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parents:
diff changeset
574 return (
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parents:
diff changeset
575 <ThemeProvider>
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parents:
diff changeset
576 <AppContent />
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diff changeset
577 </ThemeProvider>
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parents:
diff changeset
578 );
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parents:
diff changeset
579 }
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parents:
diff changeset
580
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diff changeset
581 export { App };