Functions/GenXdev.FileSystem/Find-Item.Cmdlet.cs
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// ################################################################################
// Part of PowerShell module : GenXdev.FileSystem // Original cmdlet filename : Find-Item.Cmdlet.cs // Original author : René Vaessen / GenXdev // Version : 1.266.2025 // ################################################################################ // MIT License // // Copyright 2021-2025 GenXdev // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in all // copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE // SOFTWARE. // ################################################################################ using StreamRegex.Extensions.Core; using StreamRegex.Extensions.RegexExtensions; using System.Collections.Concurrent; using System.Collections.ObjectModel; using System.Data.Common; using System.Diagnostics; using System.Management; using System.Management.Automation; using System.Runtime.InteropServices; using System.Text.RegularExpressions; using Windows.ApplicationModel.Calls; /// <summary> /// <para type="synopsis"> /// Fast multi-threaded file and directory search with optional textcontent pattern matching /// capabilities. /// </para> /// <para type="description"> /// SearchMask format capabilities: /// 1. Basic Pattern Support: /// - Wildcards: * and ? for pattern matching /// - Directory Navigation: \ and / for path separators /// - \**\ pattern for recursive directory matching /// 2. Path Type Support: /// - File names without paths: e.g., *.txt /// - Relative paths: .\subfolder\*.log /// - Absolute paths: C:\Windows\*.exe /// - UNC paths: \\server\share\*.doc /// - Rooted paths with drive letters /// - Base directory patterns: [Directory]*.cs /// 3. Pattern Examples: /// - Simple wildcard: *.txt - All txt files in current directory /// - Specific extension: .\*.js - JavaScript files in current directory /// - Complex pattern: test*.log - Log files starting with "test" /// - Recursive: **\*.txt - All txt files recursively in any subdirectory /// - Deep path: dir1\*\item_??\john*\subdir\*\final\*.dat - Dat files in /// directories /// including and below any matching '\subdir\' directories /// - Multiple wildcards: *test*\*.xml - XML files in folders containing /// "test" /// 4. Special Features: /// - Alternate Data Streams: file.txt:stream /// - Multi-drive search with -AllDrives /// - -Directory switch to only match directories /// - -NoRecurse to prevent recursive searching /// - -Pattern parameter for content searching /// - Case-insensitive matching /// 5. Search Behavior: /// - When using -AllDrives, only the filename part is matched /// - Handles special characters in filenames /// - Supports long paths (>260 chars) /// - Follows NTFS junctions and symlinks /// - Respects access permissions /// </para> /// <para type="description"> /// A powerful search utility that combines file/directory pattern matching with /// content filtering. Defaults to fast recursive searches, supports multi-drive /// operations, and flexible output formats. /// Can search by name patterns and content patterns /// simultaneously. /// Supports ntfs alternate-data-streams, unc share matching, and long filenames /// </para> /// /// <para type="description"> /// PARAMETERS /// </para> /// /// <para type="description"> /// -SearchMask <String[]><br/> /// File name or pattern to search for. Supports wildcards (*, ?). Default is /// '*'.<br/> /// - <b>Aliases</b>: like, l, Path, Name, file, Query, FullName<br/> /// - <b>Position</b>: 0<br/> /// - <b>Examples</b>:<br/> /// - Simple wildcard: <c>*.txt</c> - All txt files in the current /// directory<br/> /// - Specific extension: <c>.\*.js</c> - JavaScript files in the current /// directory<br/> /// - Complex pattern: <c>test*.log</c> - Log files starting with "test"<br/> /// - Recursive: <c>**\*.txt</c> - All txt files recursively in any /// subdirectory<br/> /// - Deep path: <c>dir1\*\item_??\john*\subdir\*\final\*.dat</c> - Dat files /// in directories including and below any matching '\subdir\' /// directories<br/> /// - Multiple wildcards: <c>*test*\*.xml</c> - XML files in folders /// containing "test"<br/> /// - <b>Features</b>:<br/> /// - Wildcards: <c>*</c> and <c>?</c> for pattern matching<br/> /// - Directory Navigation: <c>\</c> and <c>/</c> for path separators<br/> /// - Recursive pattern: <c>\**\</c> for recursive directory matching<br/> /// - Supports file names without paths, relative paths, absolute paths, UNC /// paths, rooted paths with drive letters, and base directory patterns<br/> /// - Alternate Data Streams: <c>file.txt:stream</c> /// </para> /// /// <para type="description"> /// -Input <String><br/> /// File name or pattern to search for from pipeline input. Default is '*'.<br/> /// - <b>Aliases</b>: like, l, Path, Name, file, Query, FullName<br/> /// - <b>Accepts pipeline input</b>: Yes /// </para> /// /// <para type="description"> /// -Pattern <String><br/> /// Regular expression pattern to search within file contents.<br/> /// - <b>Aliases</b>: mc, matchcontent<br/> /// - <b>Position</b>: 1<br/> /// - <b>Default</b>: ".*" /// </para> /// /// <para type="description"> /// -RelativeBasePath <String><br/> /// Base path for resolving relative paths in output.<br/> /// - <b>Aliases</b>: base<br/> /// - <b>Position</b>: 2<br/> /// - <b>Default</b>: ".\\" /// </para> /// /// <para type="description"> /// -MaxDegreeOfParallelism <Int32><br/> /// Maximum degree of parallelism for directory tasks.<br/> /// - <b>Default</b>: 8 /// </para> /// /// <para type="description"> /// -TimeoutSeconds <Int32><br/> /// Optional cancellation timeout in seconds. /// </para> /// /// <para type="description"> /// -AllDrives <SwitchParameter><br/> /// Search across all available drives. /// </para> /// /// <para type="description"> /// -Directory <SwitchParameter><br/> /// Search for directories only.<br/> /// - <b>Aliases</b>: dir /// </para> /// /// <para type="description"> /// -FilesAndDirectories <SwitchParameter><br/> /// Include both files and directories.<br/> /// - <b>Aliases</b>: both /// </para> /// /// <para type="description"> /// -PassThru <SwitchParameter><br/> /// Output matched items as objects.<br/> /// - <b>Aliases</b>: pt /// </para> /// /// <para type="description"> /// -IncludeAlternateFileStreams <SwitchParameter><br/> /// Include alternate data streams in search results.<br/> /// - <b>Aliases</b>: ads /// </para> /// /// <para type="description"> /// -NoLinks <SwitchParameter><br/> ///Forces unattended mode and will not generate links /// - <b>Aliases</b>: nl /// </para> /// <para type="description"> /// -NoRecurse <SwitchParameter><br/> /// Do not recurse into subdirectories. /// </para> /// /// <para type="description"> /// -SearchDrives <String[]><br/> /// Optional: search specific drives. /// </para> /// /// <para type="description"> /// -CaseSensitivePattern <SwitchParameter><br/> /// Makes pattern matching case-sensitive. By default, pattern matching /// is case-insensitive. /// </para> /// /// <para type="description"> /// -SearchADSContent <SwitchParameter><br/> /// When set, performs content search within alternate data streams (ADS). When /// not set, outputs ADS file info without searching their content. /// </para> /// <para type="description"> /// -MaxRecursionDepth <Int32><br/> /// Maximum recursion depth for directory traversal. 0 means unlimited. /// </para> /// /// <para type="description"> /// -MaxFileSize <Int64><br/> /// Maximum file size in bytes to include in results. 0 means unlimited. /// </para> /// /// <para type="description"> /// -MinFileSize <Int64><br/> /// Minimum file size in bytes to include in results. 0 means no minimum. /// </para> /// /// <para type="description"> /// -ModifiedAfter <DateTime?><br/> /// Only include files modified after this date/time (UTC). /// </para> /// /// <para type="description"> /// -ModifiedBefore <DateTime?><br/> /// Only include files modified before this date/time (UTC). /// </para> /// /// <para type="description"> /// -AttributesToSkip <FileAttributes><br/> /// File attributes to skip (e.g., System, Hidden or None). /// </para> /// /// <para type="description"> /// -Exclude <String[]><br/> /// Exclude files or directories matching these wildcard patterns (e.g., *.tmp, bin\*). /// </para> /// <para type="description"> /// -IncludeOpticalDiskDrives <SwitchParameter><br/> /// Include optical disk drives /// </para> /// <para type="description"> /// -IncludeNonTextFileMatching <SwitchParameter><br/> /// Include non-text files (binaries, images, etc.) when searching file /// contents. /// </para> /// /// <example> /// <para>Find files containing a specific word</para> /// <para>Search for all files in the current directory and subdirectories that contain the word "translation".</para> /// <code> /// Find-Item -Pattern "translation" /// /// # Short form: /// l -mc translation /// </code> /// </example> /// /// <example> /// <para>Find JavaScript files with a version string</para> /// <para>Search for JavaScript files containing a version string in the format "Version == `x.y.z`".</para> /// <code> /// Find-Item -SearchMask "*.js" -Pattern "Version == `"\d\d?\.\d\d?\.\d\d?`"" /// /// # Short form: /// l *.js "Version == `"\d\d?\.\d\d?\.\d\d?`"" /// </code> /// </example> /// /// <example> /// <para>List all directories</para> /// <para>Find all directories in the current directory and its subdirectories.</para> /// <code> /// Find-Item -Directory /// /// # Short form: /// l -dir /// </code> /// </example> /// /// <example> /// <para>Find XML files and pass objects</para> /// <para>Search for all .xml files and pass the results as objects through the pipeline.</para> /// <code> /// Find-Item -SearchMask "*.xml" -PassThru | ForEach-Object { $_.FullName } /// /// # Short form: /// l *.xml -pt /// </code> /// </example> /// /// <example> /// <para>Include alternate data streams</para> /// <para>Search for all files and include their alternate data streams in the results.</para> /// <code> /// Find-Item -IncludeAlternateFileStreams /// /// # Short form: /// l -ads /// </code> /// </example> /// /// <example> /// <para>Search across all drives</para> /// <para>Search for all PDF files across all available drives.</para> /// <code> /// Find-Item -SearchMask "*.pdf" -AllDrives /// </code> /// </example> /// /// <example> /// <para>Custom timeout and parallelism</para> /// <para>Search for log files with a 5-minute timeout and limited parallelism.</para> /// <code> /// Find-Item -SearchMask "*.log" -TimeoutSeconds 300 -MaxDegreeOfParallelism 4 /// </code> /// </example> /// /// <example> /// <para>Pipeline input</para> /// <para>Pass file paths from Get-ChildItem to search for files containing "error".</para> /// <code> /// Get-ChildItem -Path "C:\Logs" | Find-Item -Pattern "error" /// </code> /// </example> /// /// <example> /// <para>Limit recursion depth</para> /// <para>Search for text files but limit recursion to 2 directory levels.</para> /// <code> /// Find-Item -SearchMask "*.txt" -MaxRecursionDepth 2 /// </code> /// </example> /// /// <example> /// <para>Filter by file size</para> /// <para>Find files larger than 1MB but smaller than 10MB.</para> /// <code> /// Find-Item -SearchMask "*" -MinFileSize 1048576 -MaxFileSize 10485760 /// </code> /// </example> /// /// <example> /// <para>Filter by modification date</para> /// <para>Find files modified after January 1, 2025.</para> /// <code> /// Find-Item -SearchMask "*" -ModifiedAfter "2025-01-01" /// </code> /// </example> /// /// <example> /// <para>Exclude specific patterns</para> /// <para>Search for all files but exclude temporary files and bin directories.</para> /// <code> /// Find-Item -SearchMask "*" -Exclude "*.tmp","bin\*" /// </code> /// </example> /// /// <example> /// <para>Search specific drives</para> /// <para>Search for .docx files on C: and D: drives only.</para> /// <code> /// Find-Item -SearchMask "*.docx" -SearchDrives "C:\","D:\" /// </code> /// </example> /// /// <example> /// <para>Case-sensitive content search</para> /// <para>Search for files containing "Error" (case-sensitive) in their content.</para> /// <code> /// Find-Item -Pattern "Error" -CaseSensitivePattern /// </code> /// </example> /// /// <example> /// <para>Search alternate data stream content</para> /// <para>Search for files with alternate data streams containing "secret".</para> /// <code> /// Find-Item -IncludeAlternateFileStreams -SearchADSContent -Pattern "secret" /// </code> /// </example> /// /// <para type="link" uri="https://github.com/genXdev/GenXdev.FileSystem"> /// Online documentation: https://github.com/genXdev/GenXdev.FileSystem /// </para> [Cmdlet(VerbsCommon.Find, "Item", DefaultParameterSetName = "Default")] [Alias("l")] public partial class FindItem : PSCmdlet { /// <summary> /// <para type="description">File name or pattern to search for. Supports wildcards (*,?). Default is '*'</para> /// </summary> [Parameter(Position = 0, Mandatory = false, HelpMessage = "File name or pattern to search for. Default is '*'")] [Alias("like", "l", "Path", "Query")] [ValidateNotNullOrEmpty()] [SupportsWildcards()] public string[] SearchMask { get; set; } = new string[] { "*" }; /// <summary> /// <para type="description">File name or pattern to search for from pipeline input. Default is '*'</para> /// </summary> [Parameter(Mandatory = false, ValueFromPipeline = true, ValueFromPipelineByPropertyName = true, HelpMessage = "File name or pattern to search for. Default is '*'")] [Alias("FullName")] [ValidateNotNullOrEmpty()] [SupportsWildcards()] public string Input { get; set; } /// <summary> /// <para type="description">Regular expression pattern to search within file contents</para> /// </summary> [Parameter(Position = 1, Mandatory = false, ParameterSetName = "WithPattern", HelpMessage = "Regular expression pattern to search within content")] [Alias("mc", "matchcontent", "regex")] [ValidateNotNull()] [SupportsWildcards()] public string Pattern { get; set; } = ".*"; /// <summary> /// <para type="description">Base path for resolving relative paths in output</para> /// </summary> [Parameter(Position = 2, Mandatory = false, HelpMessage = "Base path for resolving relative paths in output")] [Alias("base")] [ValidateNotNullOrEmpty()] public string RelativeBasePath { get; set; } = ".\\"; /// <summary> /// <para type="description">Maximum degree of parallelism for directory tasks</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Maximum degree of parallelism for directory tasks")] [Alias("threads")] public int MaxDegreeOfParallelism { get; set; } = 0; /// <summary> /// <para type="description">Optional: cancellation timeout in seconds</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Optional: cancellation timeout in seconds")] [Alias("maxseconds")] public int? TimeoutSeconds { get; set; } /// <summary> /// <para type="description">Search across all available drives</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Search across all available drives")] public SwitchParameter AllDrives { get; set; } /// <summary> /// <para type="description">Search for directories only</para> /// </summary> [Parameter(Mandatory = false, ParameterSetName = "DirectoriesOnly", HelpMessage = "Search for directories only")] [Alias("dir")] public SwitchParameter Directory { get; set; } /// <summary> /// <para type="description">Include both files and directories</para> /// </summary> [Parameter(Mandatory = false, ParameterSetName = "DirectoriesOnly", HelpMessage = "Include both files and directories")] [Alias("both")] public SwitchParameter FilesAndDirectories { get; set; } /// <summary> /// <para type="description">Output matched items as objects</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Output matched items as objects")] [Alias("pt")] public SwitchParameter PassThru { get; set; } /// <summary> /// <para type="description">Include alternate data streams in search results /// </para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Include alternate data streams in search results")] [Alias("ads")] public SwitchParameter IncludeAlternateFileStreams { get; set; } /// <summary> /// <para type="description">Do not recurse into subdirectories</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Do not recurse into subdirectories")] [Alias("nr")] public SwitchParameter NoRecurse { get; set; } /// <summary> /// <para type="description">Follow symlinks and junctions during directory /// traversal</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Follow symlinks and junctions during directory traversal")] [Alias("symlinks", "sl")] public SwitchParameter FollowSymlinkAndJunctions { get; set; } /// <summary> /// <para type="description">Include optical disk drives</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Include optical disk drives")] public SwitchParameter IncludeOpticalDiskDrives { get; set; } /// <summary> /// <para type="description">Optional: search specific drives</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Optional: search specific drives")] [Alias("drives")] public string[] SearchDrives { get; set; } = Array.Empty<string>(); /// <summary> /// <para type="description">Include non-text files (binaries, images, etc.) /// when searching file contents</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Include non-text files when searching file contents")] [Alias("binary")] public SwitchParameter IncludeNonTextFileMatching { get; set; } /// <summary> /// <para type="description">Forces unattended mode and will not generate /// links</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Forces unattended mode and will not generate links")] [Alias("nl")] public SwitchParameter NoLinks { get; set; } /// <summary> /// <para type="description">Makes pattern matching case-sensitive. By default, /// pattern matching is case-insensitive.</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Makes pattern matching case-sensitive. By default, pattern matching is case-insensitive.")] [Alias("patternmatchcase", "csp")] public SwitchParameter CaseSensitivePattern { get; set; } /// <summary>Gets or sets the case-sensitivity for files and directories. /// </summary> [Parameter(Mandatory = false, HelpMessage = "Gets or sets the case-sensitivity for files and directories")] [Alias("casing")] public System.IO.MatchCasing CaseSearchMaskMatching { get; set; } = System.IO.MatchCasing.PlatformDefault; /// <summary> /// <para type="description"> /// When set, performs content search within alternate data streams (ADS). When /// not set, /// outputs ADS file info without searching their content. /// </para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "When set, performs content search within alternate data streams (ADS). When not set, outputs ADS file info without searching their content.")] [Alias("sads")] public SwitchParameter SearchADSContent { get; set; } /// <summary> /// <para type="description">Maximum recursion depth for directory traversal. 0 /// means unlimited.</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Maximum recursion depth for directory traversal. 0 means unlimited.")] [Alias("md", "depth", "maxdepth")] public int MaxRecursionDepth { get; set; } = 0; /// <summary> /// <para type="description">Maximum file size in bytes to include in results. 0 /// means unlimited.</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Maximum file size in bytes to include in results. 0 means unlimited.")] [Alias("maxlength", "maxsize")] public long MaxFileSize { get; set; } = 0; /// <summary> /// <para type="description">Minimum file size in bytes to include in results. 0 /// means no minimum.</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Minimum file size in bytes to include in results. 0 means no minimum.")] [Alias("minsize", "minlength")] public long MinFileSize { get; set; } = 0; /// <summary> /// <para type="description">Only include files modified after this date/time /// (UTC).</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Only include files modified after this date/time (UTC).")] [Alias("since", "ma")] public DateTime? ModifiedAfter { get; set; } /// <summary> /// <para type="description">Only include files modified before this date/time /// (UTC).</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Only include files modified before this date/time (UTC).")] [Alias("before", "mb")] public DateTime? ModifiedBefore { get; set; } /// <summary>Gets or sets the attributes to skip. The default is /// <c>FileAttributes.System</c>.</summary> [Parameter(Mandatory = false, HelpMessage = "File attributes to skip (e.g., System, Hidden or None).")] [Alias("skipattr")] public FileAttributes AttributesToSkip { get; set; } = FileAttributes.System; /// <summary> /// <para type="description">Exclude files or directories matching these /// wildcard patterns (e.g., *.tmp, bin\*).</para> /// </summary> [Parameter(Mandatory = false, HelpMessage = "Exclude files or directories matching these wildcard patterns (e.g., *.tmp, bin\\*).")] [Alias("skiplike")] public string[] Exclude { get; set; } = Array.Empty<string>(); // Cmdlet lifecycle methods protected override void BeginProcessing() { // set default parallelism if not provided by user MaxDegreeOfParallelism = MaxDegreeOfParallelism <= 0 ? GetCoreCount() * 2 : MaxDegreeOfParallelism; // detect if running in unattended mode for output formatting UnattendedMode = NoLinks.IsPresent || UnattendedModeHelper.IsUnattendedMode(MyInvocation); // prepare dictionary to track visited nodes for loop prevention InitializeVisitedNodes(); // set up verbose logging based on user preference InitializeVerboseOutput(); // prepare wildcard matching for exclusions InitializeWildcardMatcher(); // set up exclusion patterns for files and directories InitializeExcludePatterns(); // determine current working directory for relative paths InitializeCurrentDirectory(); // resolve base path for relative output InitializeRelativeBaseDir(); // compile regex for content searching InitializePatternMatcher(); // configure buffering for large file processing InitializeBufferingConfiguration(); // set up cancellation with optional timeout InitializeCancellationToken(); // process each unique search mask provided if (SearchMask != null && SearchMask.Length > 0) { // loop through each mask foreach (var mask in SearchMask) { // check if mask already processed to avoid duplicates if (VisitedNodes.TryAdd("start;" + mask, true)) { // log processing of mask if verbose enabled if (UseVerboseOutput) { VerboseQueue.Enqueue($"Processing search mask: {mask}"); } // prepare search starting point InitializeSearchDirectory(mask); } else if (UseVerboseOutput) { // log skipping duplicate mask VerboseQueue.Enqueue($"Skipping duplicate search mask: {mask}"); } } } } protected override void ProcessRecord() { // handle pipeline input if provided if (!string.IsNullOrEmpty(Input)) { // add to visited if new and initialize search if (VisitedNodes.TryAdd("start;" + Input, true)) { InitializeSearchDirectory(Input); } } } protected override void EndProcessing() { // run the search tasks ProcessSearchTasks(); // clear all queues EmptyQueues(); // create completion progress record var completeRecord = new ProgressRecord(0, "FastFileSearch", "Completed") { // set completion percentage PercentComplete = 100, // mark as completed RecordType = ProgressRecordType.Completed }; // output completion progress WriteProgress(completeRecord); // clean up cancellation source cts?.Dispose(); } protected override void StopProcessing() { // trigger cancellation cts?.Cancel(); } } |