| 1 | #nullable enable |
| 2 | |
| 3 | using CascadeIDE.Contracts; |
| 4 | namespace CascadeIDE.Features.EnvironmentReadiness.DataAcquisition; |
| 5 | |
| 6 | /// <summary> |
| 7 | /// Проверка существования исполняемого файла: явный путь или поиск по PATH (+ PATHEXT на Windows), как для NETCOREDBG_PATH (ADR 0023, DAL). |
| 8 | /// </summary> |
| 9 | [IoBoundary] |
| 10 | public static class EnvironmentReadinessExecutablePathProbe |
| 11 | { |
| 12 | /// <summary>Возвращает полный путь к существующему файлу или null.</summary> |
| 13 | public static string? TryResolveExecutablePath(string raw) |
| 14 | { |
| 15 | var t = raw.Trim(); |
| 16 | if (t.Length == 0) |
| 17 | return null; |
| 18 | |
| 19 | if (File.Exists(t)) |
| 20 | return CanonicalFilePath.Normalize(t); |
| 21 | |
| 22 | try |
| 23 | { |
| 24 | var full = CanonicalFilePath.Normalize(t); |
| 25 | if (File.Exists(full)) |
| 26 | return full; |
| 27 | } |
| 28 | catch |
| 29 | { |
| 30 | return null; |
| 31 | } |
| 32 | |
| 33 | if (!IsBareExecutableName(t)) |
| 34 | return null; |
| 35 | |
| 36 | return SearchPathForExecutable(t); |
| 37 | } |
| 38 | |
| 39 | /// <summary>Имя команды без каталога (ищем в PATH).</summary> |
| 40 | public static bool IsBareExecutableName(string t) |
| 41 | { |
| 42 | if (t.Length == 0) |
| 43 | return false; |
| 44 | return t.IndexOf(Path.DirectorySeparatorChar) < 0 && t.IndexOf(Path.AltDirectorySeparatorChar) < 0; |
| 45 | } |
| 46 | |
| 47 | private static string? SearchPathForExecutable(string fileName) |
| 48 | { |
| 49 | var pathVar = Environment.GetEnvironmentVariable("PATH"); |
| 50 | if (string.IsNullOrEmpty(pathVar)) |
| 51 | return null; |
| 52 | |
| 53 | foreach (var dir in pathVar.Split(Path.PathSeparator, StringSplitOptions.RemoveEmptyEntries)) |
| 54 | { |
| 55 | var d = dir.Trim().Trim('"'); |
| 56 | if (d.Length == 0) |
| 57 | continue; |
| 58 | |
| 59 | foreach (var name in CandidateFileNames(fileName)) |
| 60 | { |
| 61 | string p; |
| 62 | try |
| 63 | { |
| 64 | p = Path.Combine(d, name); |
| 65 | } |
| 66 | catch |
| 67 | { |
| 68 | continue; |
| 69 | } |
| 70 | |
| 71 | if (File.Exists(p)) |
| 72 | { |
| 73 | try |
| 74 | { |
| 75 | return CanonicalFilePath.Normalize(p); |
| 76 | } |
| 77 | catch |
| 78 | { |
| 79 | return p; |
| 80 | } |
| 81 | } |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | return null; |
| 86 | } |
| 87 | |
| 88 | private static IEnumerable<string> CandidateFileNames(string fileName) |
| 89 | { |
| 90 | if (OperatingSystem.IsWindows() && !Path.HasExtension(fileName)) |
| 91 | { |
| 92 | var pathext = Environment.GetEnvironmentVariable("PATHEXT"); |
| 93 | if (!string.IsNullOrEmpty(pathext)) |
| 94 | { |
| 95 | foreach (var ext in pathext.Split(';', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries)) |
| 96 | { |
| 97 | if (ext.Length > 0) |
| 98 | yield return fileName + ext; |
| 99 | } |
| 100 | } |
| 101 | else |
| 102 | { |
| 103 | yield return fileName + ".EXE"; |
| 104 | yield return fileName + ".CMD"; |
| 105 | yield return fileName + ".BAT"; |
| 106 | } |
| 107 | |
| 108 | yield return fileName; |
| 109 | } |
| 110 | else |
| 111 | { |
| 112 | yield return fileName; |
| 113 | } |
| 114 | } |
| 115 | } |
| 116 | |