/
PathUtils.cs
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/
PathUtils.cs
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// Copyright (c) ServiceStack, Inc. All Rights Reserved.
// License: https://raw.github.com/ServiceStack/ServiceStack/master/license.txt
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using ServiceStack.Text;
namespace ServiceStack;
public static class PathUtils
{
public static string MapAbsolutePath(this string relativePath, string appendPartialPathModifier)
{
return PclExport.Instance.MapAbsolutePath(relativePath, appendPartialPathModifier);
}
/// <summary>
/// Maps the path of a file in the context of a VS project in a Console App
/// </summary>
/// <param name="relativePath">the relative path</param>
/// <returns>the absolute path</returns>
/// <remarks>Assumes static content is two directories above the /bin/ directory,
/// eg. in a unit test scenario the assembly would be in /bin/Debug/.</remarks>
public static string MapProjectPath(this string relativePath)
{
var sep = PclExport.Instance.DirSep;
return Env.HasMultiplePlatformTargets
? PclExport.Instance.MapAbsolutePath(relativePath, $"{sep}..{sep}..{sep}..")
: PclExport.Instance.MapAbsolutePath(relativePath, $"{sep}..{sep}..");
}
/// <summary>
/// Maps the path of a file in the context of a VS 2017+ multi-platform project in a Console App
/// </summary>
/// <param name="relativePath">the relative path</param>
/// <returns>the absolute path</returns>
/// <remarks>Assumes static content is two directories above the /bin/ directory,
/// eg. in a unit test scenario the assembly would be in /bin/Debug/net45</remarks>
public static string MapProjectPlatformPath(this string relativePath)
{
var sep = PclExport.Instance.DirSep;
return PclExport.Instance.MapAbsolutePath(relativePath, $"{sep}..{sep}..{sep}..");
}
/// <summary>
/// Maps the path of a file in the bin\ folder of a self-hosted scenario
/// </summary>
/// <param name="relativePath">the relative path</param>
/// <returns>the absolute path</returns>
/// <remarks>Assumes static content is copied to /bin/ folder with the assemblies</remarks>
public static string MapAbsolutePath(this string relativePath)
{
return PclExport.Instance.MapAbsolutePath(relativePath, null);
}
/// <summary>
/// Maps the path of a file in an ASP.NET hosted scenario
/// </summary>
/// <param name="relativePath">the relative path</param>
/// <returns>the absolute path</returns>
/// <remarks>Assumes static content is in the parent folder of the /bin/ directory</remarks>
public static string MapHostAbsolutePath(this string relativePath)
{
var sep = PclExport.Instance.DirSep;
#if !NETCORE
return PclExport.Instance.MapAbsolutePath(relativePath, $"{sep}..");
#else
return PclExport.Instance.MapAbsolutePath(relativePath, $"{sep}..{sep}..{sep}..");
#endif
}
internal static string CombinePaths(StringBuilder sb, params string[] paths)
{
AppendPaths(sb, paths);
return sb.ToString();
}
public static void AppendPaths(StringBuilder sb, string[] paths)
{
foreach (var path in paths)
{
if (string.IsNullOrWhiteSpace(path))
continue;
if (sb.Length > 0 && sb[sb.Length - 1] != '/')
sb.Append("/");
sb.Append(path.Replace('\\', '/').TrimStart('/'));
}
}
public static string CombinePaths(params string[] paths)
{
var sb = StringBuilderThreadStatic.Allocate();
AppendPaths(sb, paths);
return StringBuilderThreadStatic.ReturnAndFree(sb);
}
/// <summary>
/// Create Directory if not exists
/// </summary>
public static string AssertDir(this string dirPath)
{
if (!dirPath.DirectoryExists())
dirPath.CreateDirectory();
return dirPath;
}
/// <summary>
/// Create Directory if not exists
/// </summary>
public static string AssertDir(this DirectoryInfo dirInfo) => dirInfo?.FullName.AssertDir();
/// <summary>
/// Create Directory if not exists
/// </summary>
public static string AssertDir(this FileInfo fileInfo) => fileInfo.DirectoryName?.AssertDir();
private static readonly char[] Slashes = { '/', '\\' };
[MethodImpl(MethodImplOptions.AggressiveInlining)] //only trim/allocate if need to
private static string TrimEndIf(this string path, char[] chars)
{
if (string.IsNullOrWhiteSpace(path) || chars == null || chars.Length == 0)
return path;
var lastChar = path[path.Length - 1];
foreach (var c in chars)
{
if (c == lastChar)
return path.TrimEnd(chars);
}
return path;
}
public static string CombineWith(this string path, string withPath)
{
if (path == null)
path = "";
if (string.IsNullOrWhiteSpace(withPath))
return path;
var startPath = path.TrimEndIf(Slashes);
return startPath + (withPath[0] == '/' ? withPath : "/" + withPath);
}
public static string CombineWith(this string path, params string[] thesePaths)
{
if (path == null)
path = "";
if (thesePaths.Length == 1 && thesePaths[0] == null) return path;
var startPath = path.TrimEndIf(Slashes);
var sb = StringBuilderThreadStatic.Allocate();
sb.Append(startPath);
AppendPaths(sb, thesePaths);
return StringBuilderThreadStatic.ReturnAndFree(sb);
}
public static string CombineWith(this string path, params object[] thesePaths)
{
if (thesePaths.Length == 1 && thesePaths[0] == null) return path;
var sb = StringBuilderThreadStatic.Allocate();
sb.Append(path.TrimEndIf(Slashes));
AppendPaths(sb, ToStrings(thesePaths));
return StringBuilderThreadStatic.ReturnAndFree(sb);
}
public static string ResolvePaths(this string path)
{
if (path == null || path.IndexOfAny("./", "/.") == -1)
return path;
var schemePos = path.IndexOf("://", StringComparison.Ordinal);
var prefix = schemePos >= 0
? path.Substring(0, schemePos + 3)
: "";
var parts = path.Substring(prefix.Length).Split('/').ToList();
var combinedPaths = new List<string>();
foreach (var part in parts)
{
if (string.IsNullOrEmpty(part) || part == ".")
continue;
if (part == ".." && combinedPaths.Count > 0)
combinedPaths.RemoveAt(combinedPaths.Count - 1);
else
combinedPaths.Add(part);
}
var resolvedPath = string.Join("/", combinedPaths);
if (path[0] == '/' && prefix.Length == 0)
resolvedPath = "/" + resolvedPath;
return path[path.Length - 1] == '/' && resolvedPath.Length > 0
? prefix + resolvedPath + "/"
: prefix + resolvedPath;
}
public static string[] ToStrings(object[] thesePaths)
{
var to = new string[thesePaths.Length];
for (var i = 0; i < thesePaths.Length; i++)
{
to[i] = thesePaths[i].ToString();
}
return to;
}
internal static List<To> Map<To>(System.Collections.IEnumerable items, Func<object, To> converter)
{
if (items == null)
return new List<To>();
var list = new List<To>();
foreach (var item in items)
{
list.Add(converter(item));
}
return list;
}
}