问题
In C#, if I have a directory path and a relative file path with wildcard, e.g.
"c:\foo\bar"
and "..\blah\*.cpp"
Is there a simple way to get the list of absolute file paths? e.g.
{ "c:\foo\blah\a.cpp", "c:\foo\blah\b.cpp" }
Background
There is a source code tree, where any directory can contain a build definition file. This file uses relative paths with wildcards to specify a list of source files. The task is to generate a list of absolute paths of all source files for each one of these build definition files.
回答1:
You can get the absolute path first and then enumerate the files inside the directory matching the wildcard:
// input
string rootDir = @"c:\foo\bar";
string originalPattern = @"..\blah\*.cpp";
// Get directory and file parts of complete relative pattern
string pattern = Path.GetFileName (originalPattern);
string relDir = originalPattern.Substring ( 0, originalPattern.Length - pattern.Length );
// Get absolute path (root+relative)
string absPath = Path.GetFullPath ( Path.Combine ( rootDir ,relDir ) );
// Search files mathing the pattern
string[] files = Directory.GetFiles ( absPath, pattern, SearchOption.TopDirectoryOnly );
回答2:
It's simple.
using System.IO;
.
.
.
string[] files = Directory.GetFiles(@"c:\", "*.txt", SearchOption.TopDirectoryOnly);
来源:https://stackoverflow.com/questions/8517260/resolving-relative-paths-with-wildcards-in-c-sharp