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added CondaEnvironment and modernized project · losttech/WhichPython@33329f7 · GitHub

  1. losttech
  2. WhichPython

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Commit 33329f7

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lostmsu
committed
added CondaEnvironment and modernized project
1 parent 38cc60b commit 33329f7

5 files changed

Lines changed: 205 additions & 130 deletions

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‎app/WhichPython.App.csproj‎

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@@ -3,6 +3,8 @@
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>netcoreapp2.1</TargetFramework>
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<LangVersion>8.0</LangVersion>
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<Nullable>enable</Nullable>
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<RootNamespace>LostTech.WhichPython</RootNamespace>
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</PropertyGroup>
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‎app/WhichPythonProgram.cs‎

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@@ -6,8 +6,9 @@
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static class WhichPythonProgram {
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static void Main() {
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foreach (var environment in PythonEnvironment.EnumerateEnvironments()
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.Concat(PythonEnvironment.EnumerateCondaEnvironments()))
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Console.WriteLine($"{environment.LanguageVersion.ToString(2)}-{environment.Architecture?.ToString() ?? "???"} @ {environment.Home}");
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.Concat(CondaEnvironment.EnumerateCondaEnvironments())) {
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Console.WriteLine($"{environment.LanguageVersion?.ToString(2) ?? "??"}-{environment.Architecture?.ToString() ?? "???"} @ {environment.Home}");
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}
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}
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}
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}

‎src/CondaEnvironment.cs‎

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@@ -0,0 +1,89 @@
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namespace LostTech.WhichPython {
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Threading;
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/// <summary>
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/// Represents a Python environment, managed by Anaconda
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/// </summary>
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public sealed class CondaEnvironment: PythonEnvironment {
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/// <inheritdoc cref="PythonEnvironment.Home"/> />
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#pragma warning disable CS8600, CS8603 // Conda environments always have non-null homes
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public new DirectoryInfo Home => (DirectoryInfo)base.Home;
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#pragma warning restore CS8600, CS8603 // Conda environments always have non-null homes
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/// <summary>
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/// Short name of the environment
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/// </summary>
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public string Name => this.Home.Name;
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/// <summary>
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/// Checks specified directory
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/// </summary>
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/// <param name="home"></param>
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/// <param name="cancellation"></param>
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/// <returns></returns>
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public static CondaEnvironment? DetectCondaEnvironment(DirectoryInfo home, CancellationToken cancellation = default) {
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if (home is null) throw new ArgumentNullException(nameof(home));
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if (!home.Exists)
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return null;
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int? versionDoublet = TryGetVersionDoublet(home, cancellation);
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Version? version = versionDoublet == null
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? null
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: new Version(versionDoublet.Value / 10, versionDoublet.Value % 10);
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string? interpreterPath = RuntimeInformation.IsOSPlatform(OSPlatform.Windows)
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? Path.Combine(home.FullName, "python.exe")
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: version == null ? null
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: Path.Combine(home.FullName, "bin",
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FormattableString.Invariant($"python{version.Major}.{version.Minor}"));
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if (interpreterPath is null || !File.Exists(interpreterPath)) return null;
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return new CondaEnvironment(
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interpreterPath: new FileInfo(interpreterPath),
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home: home,
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dll: version != null ? new FileInfo(GetDll(home, version)) : null,
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version,
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architecture: null);
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}
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public new static IEnumerable<CondaEnvironment> EnumerateCondaEnvironments(
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CancellationToken cancellation = default)
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=> GetEnvironmentRoots(cancellation)
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.SelectMany(home => {
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var environment = DetectCondaEnvironment(home, cancellation);
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return environment is null
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? Array.Empty<CondaEnvironment>()
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: new[] {environment};
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});
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static IEnumerable<DirectoryInfo> GetEnvironmentRoots(CancellationToken cancellation) {
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string userHome = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
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string condaEnvironmentsFilePath = Path.Combine(userHome, ".conda", "environments.txt");
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if (!File.Exists(condaEnvironmentsFilePath))
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yield break;
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cancellation.ThrowIfCancellationRequested();
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string[] pythonHomes;
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try {
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pythonHomes = File.ReadAllLines(condaEnvironmentsFilePath);
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}
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catch (FileNotFoundException) { yield break; }
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catch (DirectoryNotFoundException) { yield break; }
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foreach (string home in pythonHomes) {
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if (string.IsNullOrWhiteSpace(home))
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continue;
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yield return new DirectoryInfo(home);
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}
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}
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CondaEnvironment(FileInfo interpreterPath, DirectoryInfo home, FileInfo? dll, Version? languageVersion, Architecture? architecture) : base(interpreterPath, home, dll, languageVersion, architecture) { }
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}
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}

‎src/LostTech.WhichPython.csproj‎

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<PropertyGroup>
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<TargetFramework>netstandard2.0</TargetFramework>
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<LangVersion>latest</LangVersion>
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<LangVersion>8.0</LangVersion>
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<Nullable>enable</Nullable>
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<PackageId>WhichPython</PackageId>
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<Version>0.2.0</Version>
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<Version>0.3.0</Version>
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<Authors>Lost Tech LLC</Authors>
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<Product>Which Python</Product>
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<PackageLicenseUrl>https://raw.githubusercontent.com/losttech/WhichPython/master/LICENSE</PackageLicenseUrl>
@@ -14,7 +15,11 @@
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.Win32.Registry" Version="4.5.0" />
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<PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="2.9.8">
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<PrivateAssets>all</PrivateAssets>
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<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
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</PackageReference>
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<PackageReference Include="Microsoft.Win32.Registry" Version="4.7.0" />
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</ItemGroup>
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</Project>

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