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Speed up Resolve-Path relative path resolution (#19171)

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This commit is contained in:
MartinGC94
2023-03-15 08:12:09 +05:00
committed by GitHub
parent d616478483
commit 8b964ded36
1 changed files with 15 additions and 0 deletions
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src/Microsoft.PowerShell.Commands.Management/commands/management/ResolvePathCommand.cs
+15
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@@ -103,6 +103,8 @@ namespace Microsoft.PowerShell.Commands
if (_relative)
{
ReadOnlySpan<char> baseCache = null;
ReadOnlySpan<char> adjustedBaseCache = null;
foreach (PathInfo currentPath in result)
{
// When result path and base path is on different PSDrive
@@ -116,8 +118,18 @@ namespace Microsoft.PowerShell.Commands
continue;
}
int leafIndex = currentPath.Path.LastIndexOf(currentPath.Provider.ItemSeparator);
var basePath = currentPath.Path.AsSpan(0, leafIndex);
if (basePath == baseCache)
{
WriteObject(string.Concat(adjustedBaseCache, currentPath.Path.AsSpan(leafIndex + 1)), enumerateCollection: false);
continue;
}
baseCache = basePath;
string adjustedPath = SessionState.Path.NormalizeRelativePath(currentPath.Path,
SessionState.Path.CurrentLocation.ProviderPath);
// Do not insert './' if result path is not relative
if (!adjustedPath.StartsWith(
currentPath.Drive?.Root ?? currentPath.Path, StringComparison.OrdinalIgnoreCase) &&
@@ -126,6 +138,9 @@ namespace Microsoft.PowerShell.Commands
adjustedPath = SessionState.Path.Combine(".", adjustedPath);
}
leafIndex = adjustedPath.LastIndexOf(currentPath.Provider.ItemSeparator);
adjustedBaseCache = adjustedPath.AsSpan(0, leafIndex + 1);
WriteObject(adjustedPath, enumerateCollection: false);
}
}