1+ using System . Reflection ;
2+ using CodeParser . Parser ;
3+ using CodeParser . Parser . Config ;
4+ using LibGit2Sharp ;
5+
6+ namespace ApprovalTestTool ;
7+
8+ internal class TestTool
9+ {
10+ /// <summary>
11+ /// Automatic approval tool
12+ /// For each line in the repositories.txt
13+ /// 1. Clone or pull the repository
14+ /// 2. Checkout the specified commit
15+ /// 3. Run test code: Parse the solution and write the output to a file.
16+ /// 4. Compare output with reference or copy to reference folder if not exists yet.
17+ /// 5. Print test result
18+ ///
19+ /// Note: The reference files are not committed, so save space.
20+ /// You can always check out an older tag and create the reference files.
21+ /// </summary>
22+ private static async Task Main ( string [ ] args )
23+ {
24+ var referenceFolder = @"d:\\ApprovalTests\\References" ;
25+ var gitCloneFolder = @"d:\\ApprovalTests\\Repositories" ;
26+
27+ if ( args . Length == 2 )
28+ {
29+ referenceFolder = args [ 0 ] ;
30+ gitCloneFolder = args [ 1 ] ;
31+ }
32+ else
33+ {
34+ Console . WriteLine ( "Usage: TestTool <reference-folder> <git-clone-folder>" ) ;
35+ Console . WriteLine ( "Using default folders." ) ;
36+ }
37+
38+
39+ Console . WriteLine ( "Use reference folder: " + referenceFolder ) ;
40+ Console . WriteLine ( "Use git clone folder: " + gitCloneFolder ) ;
41+
42+
43+ EnsureDirectoryExists ( referenceFolder ) ;
44+ EnsureDirectoryExists ( gitCloneFolder ) ;
45+
46+ var executablePath = Assembly . GetExecutingAssembly ( ) . Location ;
47+ var executableDirectory = Path . GetDirectoryName ( executablePath ) ;
48+ var repoFile = Path . Combine ( executableDirectory , "repositories.txt" ) ;
49+
50+ if ( ! File . Exists ( repoFile ) )
51+ {
52+ Console . WriteLine ( $ "Input file 'repositories.txt' not found in { executableDirectory } ") ;
53+ return ;
54+ }
55+
56+
57+ Initializer . InitializeMsBuildLocator ( ) ;
58+
59+ foreach ( var line in File . ReadLines ( repoFile ) )
60+ {
61+ var parts = line . Split ( ',' ) ;
62+ if ( parts . Length != 3 )
63+ {
64+ Console . WriteLine ( $ "Invalid input line: { line } ") ;
65+ continue ;
66+ }
67+
68+ var repoUrl = parts [ 0 ] ;
69+ var slnRelativePath = parts [ 1 ] ;
70+ var commitHash = parts [ 2 ] ;
71+
72+ await ProcessRepository ( repoUrl , slnRelativePath , commitHash , gitCloneFolder , referenceFolder ) ;
73+ }
74+ }
75+
76+ private static async Task ProcessRepository ( string repoUrl , string slnRelativePath , string commitHash ,
77+ string gitCloneFolder , string referenceFolder )
78+ {
79+ var repoName = Path . GetFileNameWithoutExtension ( repoUrl ) ;
80+ var repoPath = Path . Combine ( gitCloneFolder , repoName ) ;
81+
82+ // Clone or pull the repository
83+ if ( ! Directory . Exists ( repoPath ) )
84+ {
85+ Repository . Clone ( repoUrl , repoPath ) ;
86+ }
87+ else
88+ {
89+ using ( var repo = new Repository ( repoPath ) )
90+ {
91+ Commands . Fetch ( repo , "origin" , Array . Empty < string > ( ) , new FetchOptions ( ) , null ) ;
92+ }
93+ }
94+
95+ // Checkout the specified commit
96+ using ( var repo = new Repository ( repoPath ) )
97+ {
98+ var commit = repo . Lookup < Commit > ( commitHash ) ;
99+ if ( commit == null )
100+ {
101+ Console . WriteLine ( $ "Commit { commitHash } not found in repository { repoName } ") ;
102+ return ;
103+ }
104+
105+ Commands . Checkout ( repo , commit ) ;
106+ }
107+
108+ // Generate paths
109+ var slnPath = Path . Combine ( repoPath , slnRelativePath ) ;
110+ var outputFileName = $ "{ commitHash } .txt";
111+ var outputPath = Path . Combine ( gitCloneFolder , outputFileName ) ;
112+
113+ // Run test code (placeholder)
114+ await RunTestCode ( slnPath , outputPath ) ;
115+
116+ // Compare output with reference or copy to reference folder
117+ var referencePath = Path . Combine ( referenceFolder , outputFileName ) ;
118+ if ( File . Exists ( referencePath ) )
119+ {
120+ var areEqual = CompareFiles ( outputPath , referencePath ) ;
121+ PrintColoredTestResult ( repoName , commitHash , areEqual ) ;
122+ }
123+ else
124+ {
125+ File . Copy ( outputPath , referencePath ) ;
126+ Console . WriteLine ( $ "No reference file for { repoName } at { commitHash } . Created new reference file.") ;
127+ }
128+ }
129+
130+ private static async Task RunTestCode ( string slnPath , string outputPath )
131+ {
132+ var parserConfig = new ParserConfig ( new ProjectExclusionRegExCollection ( ) , 1 ) ;
133+ var parser = new Parser ( parserConfig ) ;
134+ var graph = await parser . ParseSolution ( slnPath ) ;
135+ await File . WriteAllTextAsync ( outputPath , graph . ToDebug ( ) ) ;
136+ }
137+
138+ private static bool CompareFiles ( string file1 , string file2 )
139+ {
140+ using var stream1 = File . OpenRead ( file1 ) ;
141+ using var stream2 = File . OpenRead ( file2 ) ;
142+ if ( stream1 . Length != stream2 . Length )
143+ {
144+ return false ;
145+ }
146+
147+ using var reader1 = new StreamReader ( stream1 ) ;
148+ using var reader2 = new StreamReader ( stream2 ) ;
149+ while ( reader1 . ReadLine ( ) is { } line1 )
150+ {
151+ var line2 = reader2 . ReadLine ( ) ;
152+ if ( line2 == null || line1 != line2 )
153+ {
154+ return false ;
155+ }
156+ }
157+
158+ // Since the files have the same length that should never happen.
159+ return reader2 . ReadLine ( ) == null ;
160+ }
161+
162+ private static void PrintColoredTestResult ( string repoName , string commitHash , bool passed )
163+ {
164+ Console . Write ( $ "Test for { repoName } at { commitHash } : ") ;
165+ Console . ForegroundColor = passed ? ConsoleColor . Green : ConsoleColor . Red ;
166+ Console . WriteLine ( passed ? "Passed" : "Failed" ) ;
167+ Console . ResetColor ( ) ;
168+ }
169+
170+
171+ private static void EnsureDirectoryExists ( string path )
172+ {
173+ if ( ! Directory . Exists ( path ) )
174+ {
175+ try
176+ {
177+ Directory . CreateDirectory ( path ) ;
178+ Console . WriteLine ( $ "Created directory: { path } ") ;
179+ }
180+ catch ( Exception ex )
181+ {
182+ Console . WriteLine ( $ "Error creating directory { path } : { ex . Message } ") ;
183+ Environment . Exit ( 1 ) ;
184+ }
185+ }
186+ }
187+ }
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