269 lines
8.4 KiB
C#
269 lines
8.4 KiB
C#
//
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// DirectoryScanner.cs: Class used by BuildItem.
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//
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// Author:
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// Marek Sieradzki (marek.sieradzki@gmail.com)
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//
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// (C) 2005 Marek Sieradzki
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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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 Microsoft.Build.Framework;
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using Microsoft.Build.Utilities;
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namespace Microsoft.Build.BuildEngine {
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internal class DirectoryScanner {
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DirectoryInfo baseDirectory;
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ITaskItem[] includes, excludes;
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ITaskItem[] matchedItems;
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string projectFile;
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static bool _runningOnWindows;
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static DirectoryScanner ()
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{
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PlatformID pid = Environment.OSVersion.Platform;
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_runningOnWindows =((int) pid != 128 && (int) pid != 4 && (int) pid != 6);
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}
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public DirectoryScanner ()
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{
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}
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public void Scan ()
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{
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Dictionary <string, bool> excludedItems;
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List <ITaskItem> includedItems;
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if (includes == null)
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throw new ArgumentNullException ("Includes");
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if (baseDirectory == null)
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throw new ArgumentNullException ("BaseDirectory");
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excludedItems = new Dictionary <string, bool> ();
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includedItems = new List <ITaskItem> ();
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if (excludes != null)
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foreach (ITaskItem excl in excludes)
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ProcessExclude (excl.ItemSpec, excludedItems);
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foreach (ITaskItem include_item in includes)
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ProcessInclude (include_item, excludedItems, includedItems);
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matchedItems = includedItems.ToArray ();
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}
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private void ProcessInclude (ITaskItem include_item, Dictionary <string, bool> excludedItems,
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List <ITaskItem> includedItems)
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{
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string[] separatedPath;
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FileInfo[] fileInfo;
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string name = include_item.ItemSpec;
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if (!HasWildcard (name)) {
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if (!excludedItems.ContainsKey (Path.GetFullPath (name))) {
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includedItems.Add (include_item);
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if (projectFile != null)
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include_item.SetMetadata ("DefiningProjectFullPath", projectFile);
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}
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} else {
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if (name.Split (Path.DirectorySeparatorChar).Length > name.Split (Path.AltDirectorySeparatorChar).Length) {
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separatedPath = name.Split (new char [] {Path.DirectorySeparatorChar},
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StringSplitOptions.RemoveEmptyEntries);
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} else {
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separatedPath = name.Split (new char [] {Path.AltDirectorySeparatorChar},
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StringSplitOptions.RemoveEmptyEntries);
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}
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if (separatedPath.Length == 1 && separatedPath [0] == String.Empty)
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return;
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int offset = 0;
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string full_path;
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if (Path.IsPathRooted (name)) {
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// The path may start with a root indicator, but at the same time can
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// contain relative paths inbetween
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full_path = Path.GetFullPath (name);
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baseDirectory = new DirectoryInfo (Path.GetPathRoot (name));
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if (IsRunningOnWindows)
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// skip the "drive:"
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offset = 1;
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} else {
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full_path = Path.GetFullPath (Path.Combine (Environment.CurrentDirectory, name));
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}
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fileInfo = ParseIncludeExclude (separatedPath, offset, baseDirectory);
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int wildcard_offset = full_path.IndexOf ("**");
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foreach (FileInfo fi in fileInfo) {
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string itemName = fi.FullName;
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if (!Path.IsPathRooted (name) && itemName.Length > baseDirectory.FullName.Length && itemName.StartsWith (baseDirectory.FullName))
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itemName = itemName.Substring (baseDirectory.FullName.Length + 1);
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if (!excludedItems.ContainsKey (itemName) && !excludedItems.ContainsKey (Path.GetFullPath (itemName))) {
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TaskItem item = new TaskItem (include_item);
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item.ItemSpec = itemName;
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if (wildcard_offset >= 0) {
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string rec_dir = Path.GetDirectoryName (fi.FullName.Substring (wildcard_offset));
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if (rec_dir.Length > 0)
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rec_dir += Path.DirectorySeparatorChar;
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item.SetMetadata ("RecursiveDir", rec_dir);
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}
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if (projectFile != null)
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item.SetMetadata ("DefiningProjectFullPath", projectFile);
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includedItems.Add (item);
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}
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}
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}
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}
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private void ProcessExclude (string name, Dictionary <string, bool> excludedItems)
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{
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string[] separatedPath;
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FileInfo[] fileInfo;
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if (name.IndexOf ('?') == -1 && name.IndexOf ('*') == -1) {
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if (!excludedItems.ContainsKey (Path.GetFullPath (name)))
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excludedItems.Add (Path.GetFullPath (name), true);
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} else {
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if (name.Split (Path.DirectorySeparatorChar).Length > name.Split (Path.AltDirectorySeparatorChar).Length) {
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separatedPath = name.Split (new char [] {Path.DirectorySeparatorChar},
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StringSplitOptions.RemoveEmptyEntries);
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} else {
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separatedPath = name.Split (new char [] {Path.AltDirectorySeparatorChar},
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StringSplitOptions.RemoveEmptyEntries);
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}
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if (separatedPath.Length == 1 && separatedPath [0] == String.Empty)
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return;
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int offset = 0;
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if (Path.IsPathRooted (name)) {
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baseDirectory = new DirectoryInfo (Path.GetPathRoot (name));
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if (IsRunningOnWindows)
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// skip the "drive:"
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offset = 1;
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}
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fileInfo = ParseIncludeExclude (separatedPath, offset, baseDirectory);
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foreach (FileInfo fi in fileInfo)
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if (!excludedItems.ContainsKey (fi.FullName))
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excludedItems.Add (fi.FullName, true);
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}
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}
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private FileInfo[] ParseIncludeExclude (string[] input, int ptr, DirectoryInfo directory)
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{
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return ParseIncludeExclude (input, ptr, directory, false);
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}
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private FileInfo[] ParseIncludeExclude (string[] input, int ptr, DirectoryInfo directory, bool recursive)
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{
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DirectoryInfo[] di;
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List <FileInfo> fileInfos = new List<FileInfo> ();
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if (input.Length > 1 && ptr == 0 && input [0] == String.Empty)
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ptr++;
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string cur = input.Length > ptr ? input[ptr] : input[input.Length-1];
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bool dot = cur == ".";
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recursive = recursive || cur == "**";
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bool parent = cur == "..";
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if (input.Length <= ptr + 1) {
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if (parent)
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directory = directory.Parent;
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if ((input.Length == ptr + 1 && !recursive) || input.Length <= ptr)
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return directory.GetFiles (cur);
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}
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if (dot) {
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di = new DirectoryInfo [1];
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di [0] = directory;
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} else if (parent) {
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di = new DirectoryInfo [1];
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di [0] = directory.Parent;
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} else if (recursive)
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{
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// Read this directory and all subdirectories recursive
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Stack<DirectoryInfo> currentDirectories = new Stack<DirectoryInfo>();
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currentDirectories.Push(directory);
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List<DirectoryInfo> allDirectories = new List<DirectoryInfo>();
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while (currentDirectories.Count > 0)
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{
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DirectoryInfo current = currentDirectories.Pop();
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allDirectories.Insert (0, current);
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foreach (DirectoryInfo dir in current.GetDirectories())
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{
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currentDirectories.Push(dir);
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}
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}
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// No further directories shall be read
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di = allDirectories.ToArray();
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} else
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di = directory.GetDirectories (cur);
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foreach (DirectoryInfo info in di)
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fileInfos.AddRange (ParseIncludeExclude (input, ptr + 1, info, recursive));
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return fileInfos.ToArray ();
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}
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public static bool HasWildcard (string expression)
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{
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return expression.IndexOf ('?') >= 0 || expression.IndexOf ('*') >= 0;
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}
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public DirectoryInfo BaseDirectory {
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get { return baseDirectory; }
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set { baseDirectory = value; }
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}
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public string ProjectFile {
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get { return projectFile; }
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set { projectFile = value; }
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}
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public ITaskItem[] Includes {
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get { return includes; }
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set { includes = value; }
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}
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public ITaskItem[] Excludes {
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get { return excludes; }
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set { excludes = value; }
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}
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public ITaskItem[] MatchedItems {
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get { return matchedItems; }
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}
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static bool IsRunningOnWindows {
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get { return _runningOnWindows; }
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}
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}
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}
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