Esempio n. 1
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        public IEnumerable <IFileSystemInfo> Walk(GlobNode node, Func <IDirectory, bool> predicate)
        {
            var context = new GlobVisitorContext(_fileSystem, _environment, predicate);

            node.Accept(this, context);
            return(context.Results);
        }
Esempio n. 2
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        public void VisitParent(ParentSegment node, GlobVisitorContext context)
        {
            // Back up one level.
            var last = context.Pop();

            node.Next.Accept(this, context);

            // Push the segment back so pop/push
            // count remains balanced.
            context.Push(last);
        }
Esempio n. 3
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        public void VisitRelativeRoot(RelativeRoot node, GlobVisitorContext context)
        {
            // Push each path to the context.
            var pushedSegmentCount = 0;
            var path = context.Environment.WorkingDirectory;

            foreach (var segment in path.Segments)
            {
                context.Push(segment);
                pushedSegmentCount++;
            }

            node.Next.Accept(this, context);

            // Pop all segments we added to the context.
            for (var index = 0; index < pushedSegmentCount; index++)
            {
                context.Pop();
            }
        }
Esempio n. 4
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        public void VisitWildcardSegmentNode(WildcardSegment node, GlobVisitorContext context)
        {
            var path = context.FileSystem.GetDirectory(context.Path);

            if (context.FileSystem.Exists(path.Path))
            {
                foreach (var candidate in FindCandidates(path.Path, node, context, SearchScope.Current))
                {
                    context.Push(candidate.Path.FullPath.Substring(path.Path.FullPath.Length + 1));
                    if (node.Next != null)
                    {
                        node.Next.Accept(this, context);
                    }
                    else
                    {
                        context.AddResult(candidate);
                    }
                    context.Pop();
                }
            }
        }
Esempio n. 5
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        private static IEnumerable <IFileSystemInfo> FindCandidates(
            DirectoryPath path,
            MatchableNode node,
            GlobVisitorContext context,
            SearchScope option,
            bool includeFiles       = true,
            bool includeDirectories = true)
        {
            var result  = new List <IFileSystemInfo>();
            var current = context.FileSystem.GetDirectory(path);

            // Directories
            if (includeDirectories)
            {
                foreach (var directory in current.GetDirectories("*", option))
                {
                    var lastPath = directory.Path.Segments.Last();
                    if (node.IsMatch(lastPath) && context.ShouldTraverse(directory))
                    {
                        result.Add(directory);
                    }
                }
            }

            // Files
            if (includeFiles)
            {
                foreach (var file in current.GetFiles("*", option))
                {
                    var lastPath = file.Path.Segments.Last();
                    if (node.IsMatch(lastPath))
                    {
                        result.Add(file);
                    }
                }
            }

            return(result);
        }
Esempio n. 6
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        public void VisitRecursiveWildcardSegment(RecursiveWildcardSegment node, GlobVisitorContext context)
        {
            var path = context.FileSystem.GetDirectory(context.Path);

            if (context.FileSystem.Exists(path.Path))
            {
                // Check if folders match.
                var candidates = new List <IFileSystemInfo>();
                candidates.Add(path);
                candidates.AddRange(FindCandidates(path.Path, node, context, SearchScope.Recursive, includeFiles: false));

                foreach (var candidate in candidates)
                {
                    var pushed = false;
                    if (context.Path.FullPath != candidate.Path.FullPath)
                    {
                        context.Push(candidate.Path.FullPath.Substring(path.Path.FullPath.Length + 1));
                        pushed = true;
                    }

                    if (node.Next != null)
                    {
                        node.Next.Accept(this, context);
                    }
                    else
                    {
                        context.AddResult(candidate);
                    }

                    if (pushed)
                    {
                        context.Pop();
                    }
                }
            }
        }
Esempio n. 7
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 public abstract void Accept(GlobVisitor visitor, GlobVisitorContext context);
Esempio n. 8
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        public void VisitSegment(PathSegment node, GlobVisitorContext context)
        {
            if (node.IsIdentifier)
            {
                // Get the (relative) path to the current node.
                var segment = node.GetPath();

                // Get a directory that matches this segment.
                // This might be a file but we can't be sure so we need to check.
                var directoryPath = context.Path.Combine(segment);
                var directory     = context.FileSystem.GetDirectory(directoryPath);

                // Should we not traverse this directory?
                if (directory.Exists && !context.ShouldTraverse(directory))
                {
                    return;
                }

                if (node.Next == null)
                {
                    if (directory.Exists)
                    {
                        // Directory
                        context.AddResult(directory);
                    }
                    else
                    {
                        // Then it must be a file (if it exist).
                        var filePath = context.Path.CombineWithFilePath(segment);
                        var file     = context.FileSystem.GetFile(filePath);
                        if (file.Exists)
                        {
                            // File
                            context.AddResult(file);
                        }
                    }
                }
                else
                {
                    // Push the current node to the context.
                    context.Push(node.GetPath());
                    node.Next.Accept(this, context);
                    context.Pop();
                }
            }
            else
            {
                if (node.Tokens.Count > 1)
                {
                    var path = context.FileSystem.GetDirectory(context.Path);
                    if (path.Exists)
                    {
                        foreach (var candidate in FindCandidates(path.Path, node, context, SearchScope.Current))
                        {
                            if (node.Next != null)
                            {
                                context.Push(candidate.Path.FullPath.Substring(path.Path.FullPath.Length + 1));
                                node.Next.Accept(this, context);
                                context.Pop();
                            }
                            else
                            {
                                context.AddResult(candidate);
                            }
                        }
                    }
                }
            }
        }
Esempio n. 9
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 public void VisitWindowsRoot(WindowsRoot node, GlobVisitorContext context)
 {
     context.Push(node.Drive + ":");
     node.Next.Accept(this, context);
     context.Pop();
 }
Esempio n. 10
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 public void VisitUnixRoot(UnixRoot node, GlobVisitorContext context)
 {
     context.Push(string.Empty);
     node.Next.Accept(this, context);
     context.Pop();
 }