IOHelper

AddRelative

public static string AddRelative(string path, string relativePart)

result = IOHelper.AddRelative(path, relativePart)

Adds a relative segment to the current path and returns the fully qualified path.

path: The base path.
relativePart: The relative segment to add.

返回值: The combined full path.

EnumerateLines

public static IEnumerable<string> EnumerateLines(Stream stream, Encoding encoding, bool leaveOpen)

result = IOHelper.EnumerateLines(stream, encoding, leaveOpen)

Enumerates the lines in the stream using the specified encoding.

stream: The stream to read lines from.
encoding: The encoding to use when reading the stream. Defaults to UTF8 if null.
leaveOpen: Indicates whether to leave the stream open after reading.

返回值: An enumerable collection of strings, each representing a line from the stream.

GetActualBuffer

public static ArraySegment<byte> GetActualBuffer(MemoryStream stream)

result = IOHelper.GetActualBuffer(stream)

Gets the actual buffer of the MemoryStream that contains the written data.

stream: The MemoryStream to retrieve the buffer from.

返回值: An ArraySegment containing the actual data from the MemoryStream.

GetBuildTimestamp

public static DateTime GetBuildTimestamp(Assembly assembly)

result = IOHelper.GetBuildTimestamp(assembly)

Gets the build moment of the specified assembly, from the stamp inside it rather than from the file it was loaded from. A single file or NativeAOT build has no such file, so an assembly whose build writes the stamp can still be dated there.

assembly: The assembly.

返回值: The build moment, in UTC.

GetDiskFreeSpace

public static long GetDiskFreeSpace(string driveName)

result = IOHelper.GetDiskFreeSpace(driveName)

Gets the available free space on the specified drive.

driveName: The drive name (e.g., "C:").

返回值: The amount of free space in bytes.

GetRelativePath

public static string GetRelativePath(string fileFull, string folder)

result = IOHelper.GetRelativePath(fileFull, folder)

Gets the relative path from a folder to a file.

fileFull: The full file path.
folder: The base folder.

返回值: The relative file path.

GetTimestamp

public static DateTime GetTimestamp(Assembly assembly)

result = IOHelper.GetTimestamp(assembly)

Gets the timestamp of the specified assembly.

assembly: The assembly.

返回值: The timestamp when the assembly was built.

IsPathsEqual

public static bool IsPathsEqual(string path1, string path2)

result = IOHelper.IsPathsEqual(path1, path2)

Compares two file paths for equality after normalization.

path1: The first file path to compare.
path2: The second file path to compare.

返回值: True if both paths are equal; otherwise, false.

MakeFullPath

public static string MakeFullPath(string path, string baseDir)

result = IOHelper.MakeFullPath(path, baseDir)

Builds an absolute path from a potentially relative path.

path: A relative or absolute path.
baseDir: The base directory used when is not rooted.

返回值: If is already rooted, the same value is returned; otherwise the path combined with is returned.

NormalizePath

public static string NormalizePath(string path, CultureInfo culture)

result = IOHelper.NormalizePath(path, culture)

Normalizes the provided file path for comparison purposes and converts it to lowercase. Uses invariant culture for case conversion to ensure consistent behavior across all locales.

path: The file path to normalize.
culture: Ignored. Kept for backward compatibility. Always uses invariant culture.

返回值: The normalized and lowercased file path.

NormalizePathNoLowercase

public static string NormalizePathNoLowercase(string path)

result = IOHelper.NormalizePathNoLowercase(path)

Normalizes the provided file path for comparison purposes without converting to lowercase.

path: The file path to normalize.

返回值: The normalized file path, or null if the input is empty or whitespace.

Read

public static object Read(Stream stream, Type type, int size)

result = IOHelper.Read(stream, type, size)

Reads an object of the specified type from the stream using the provided size.

stream: The stream to read from.
type: The type of object to read.
size: The size in bytes to read.

返回值: The object read from the stream.

Read

public static object Read(Stream stream, Type type)

result = IOHelper.Read(stream, type)

Reads an object of the specified type from the stream.

stream: The stream to read from.
type: The type of object to read.

返回值: The object read from the stream.

ReadBytes

public static void ReadBytes(Stream stream, Memory<byte> buffer)

IOHelper.ReadBytes(stream, buffer)

Reads a specified number of bytes from a stream.

stream: The input stream.
buffer: The buffer to fill.

ReadBytes

public static byte[] ReadBytes(Stream stream, byte[] buffer, int len, int pos)

result = IOHelper.ReadBytes(stream, buffer, len, pos)

Reads a specified number of bytes from a stream.

stream: The input stream.
buffer: The buffer to fill.
len: The number of bytes to read.
pos: The position in the buffer to start filling.

返回值: The buffer containing the read bytes.

Read``1

public static T Read<T>(Stream stream)

result = IOHelper.Read(stream)

Reads an object of type T from the stream.

stream: The stream to read from.

返回值: The object read from the stream.

ToFullPath

public static string ToFullPath(string path)

result = IOHelper.ToFullPath(path)

Converts a relative or partial path to a fully qualified path.

path: The input path.

返回值: The absolute path.

ToFullPathIfNeed

public static string ToFullPathIfNeed(string path)

result = IOHelper.ToFullPathIfNeed(path)

Replaces the %Documents% variable in the path with the actual Documents folder path.

path: The path containing the %Documents% variable.

返回值: The fully qualified path with the Documents folder.

Truncate

public static void Truncate(StreamWriter writer)

IOHelper.Truncate(writer)

Truncates the underlying stream used by the StreamWriter by clearing its content.

writer: The StreamWriter whose stream is to be truncated.

TryParseBuildTimestamp

public static bool TryParseBuildTimestamp(string informationalVersion, DateTime timestamp)

result = IOHelper.TryParseBuildTimestamp(informationalVersion, timestamp)

Reads the build moment out of an informational version that carries one.

informationalVersion: The informational version, optionally followed by + and the source revision.
timestamp: The build moment, in UTC.

返回值: if the version carries a stamp.

WriteBytes

public static void WriteBytes(Stream stream, byte[] bytes, int len, int pos)

IOHelper.WriteBytes(stream, bytes, len, pos)

Writes the specified bytes to a stream.

stream: The output stream.
bytes: The byte array.
len: The number of bytes to write.
pos: The position in the array to start writing from.

WriteEx

public static void WriteEx(Stream stream, object value)

IOHelper.WriteEx(stream, value)

Writes an extended representation of the provided object to the stream, prefixing its length.

stream: The stream to write to.
value: The object to write.

WriteRaw

public static void WriteRaw(Stream stream, object value)

IOHelper.WriteRaw(stream, value)

Writes the raw byte representation of the provided object to the stream.

stream: The stream to write to.
value: The object to write. Its byte representation will be determined.

WriteRaw

public static void WriteRaw(Stream stream, byte[] buffer)

IOHelper.WriteRaw(stream, buffer)

Writes a raw byte array to the stream.

stream: The stream to write to.
buffer: The byte array to write.

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