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using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
namespace Install.Core.Common
{
/// <summary>
/// 给定 程序集其中一个类，需要获取程序集版本号
/// </summary>
public class Ver
{
/// <summary>
/// 产品名
/// </summary>
public string Product { get; private set; }
/// <summary>
/// 版本号
/// </summary>
public string V { get; private set; }
/// <summary>
/// 编译时间
/// </summary>
public string BuildTime { get; private set; }
public Ver()
{
}
private Type srcType;
/// <summary>
/// 需要获取程序集版本号， 程序集其中一个类
/// </summary>
public Type SrcType
{
get { return srcType; }
set
{
srcType = value;
update();
}
}
void update()
{
Assembly asm = Assembly.GetAssembly(SrcType);
AssemblyProductAttribute asmproduct = (AssemblyProductAttribute)Attribute.GetCustomAttribute(asm, typeof(AssemblyProductAttribute));
Version version = asm.GetName().Version;
string version_str = string.Format("v{0}.{1}.{2}", version.Major, version.Minor, version.Build);
string location = asm.Location;
string buliddt;
if (!string.IsNullOrEmpty(location))
{
buliddt = System.IO.File.GetLastWriteTime(location).ToString("yyyyMMdd");
}
else
{
buliddt = "";
}
Product = asmproduct.Product;
V = version_str;
BuildTime = buliddt;
}
public override string ToString()
{
if (!string.IsNullOrEmpty(BuildTime))
{
return Product + " " + V + " at " + BuildTime;
}
else
{
return Product + " " + V;
}
}
}
public static class VerExt
{
public static int[] String2Version(string version)
{
int[] version_parts = new int[3];
Regex regex = new Regex(@"(\d*).(\d*).(\d*)");
var match = regex.Match(version);
if (match.Success)
{
version_parts[0] = int.Parse(match.Groups[1].Value);
version_parts[1] = int.Parse(match.Groups[2].Value);
version_parts[2] = int.Parse(match.Groups[3].Value);
return version_parts;
}
else {
return null;
}
}
public static int VersionCompare(string version1, string version2)
{
var ver_parts1 = String2Version(version1);
var ver_parts2 = String2Version(version2);
if (ver_parts1 == null && ver_parts2 == null)
return 0;
if (ver_parts1 == null && ver_parts2 != null)
return -1;
if (ver_parts1 != null && ver_parts2 == null)
return 1;
for (int i = 0; i < 3; i++) {
if (ver_parts1[i] < ver_parts2[i])
return -1;
else if (ver_parts1[i] > ver_parts2[i])
return 1;
}
return 0;
}
}
}