93 lines
2.8 KiB
C#
93 lines
2.8 KiB
C#
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using System;
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using System.Linq;
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using System.Collections.Generic;
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using System.IO;
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namespace Unity.PlasticSCM.Editor.Tool
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{
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internal static class FindTool
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{
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internal static string ObtainToolCommand(
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string toolName, List<string> installationPaths)
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{
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List<string> processPaths = GetPathsFromEnvVariable(
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PATH_ENVIRONMENT_VARIABLE,
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EnvironmentVariableTarget.Process);
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List<string> machinePaths = GetPathsFromEnvVariable(
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PATH_ENVIRONMENT_VARIABLE,
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EnvironmentVariableTarget.Machine);
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List<string> pathsToLookup = new List<string>();
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pathsToLookup.AddRange(processPaths);
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pathsToLookup.AddRange(machinePaths);
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pathsToLookup.AddRange(installationPaths);
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string toolPath = FindToolInPaths(toolName, pathsToLookup);
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if (string.IsNullOrEmpty(toolPath))
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return null;
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EnsureIsInProcessPathEnvVariable(toolPath, processPaths);
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return toolPath;
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}
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static string FindToolInPaths(
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string toolName,
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List<string> paths)
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{
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foreach (string path in paths)
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{
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if (path == null)
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continue;
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if (path.Trim() == string.Empty)
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continue;
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string filePath = CleanFolderPath(path);
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filePath = Path.Combine(filePath, toolName);
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if (File.Exists(filePath))
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return Path.GetFullPath(filePath);
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}
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return null;
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}
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static string CleanFolderPath(string folderPath)
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{
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foreach (char c in Path.GetInvalidPathChars())
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folderPath = folderPath.Replace(c.ToString(), string.Empty);
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return folderPath;
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}
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static List<string> GetPathsFromEnvVariable(
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string variableName,
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EnvironmentVariableTarget target)
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{
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string value = Environment.GetEnvironmentVariable(variableName, target);
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return new List<string>(value.Split(Path.PathSeparator));
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}
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static void EnsureIsInProcessPathEnvVariable(
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string toolPath,
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List<string> processPaths)
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{
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string plasticInstallDir = Path.GetDirectoryName(toolPath);
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if (processPaths.Contains(plasticInstallDir, StringComparer.OrdinalIgnoreCase))
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return;
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Environment.SetEnvironmentVariable(
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PATH_ENVIRONMENT_VARIABLE,
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string.Concat(plasticInstallDir, Path.PathSeparator, processPaths),
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EnvironmentVariableTarget.Process);
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}
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const string PATH_ENVIRONMENT_VARIABLE = "PATH";
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}
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}
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