Merge pull request #15 from seesharper/use-improved-regex

Match CRLF in update script package

Author: seesharper

src/Dotnet.Deps.Core/Dotnet.Deps.Core.csproj

@@ -10,7 +10,8 @@
     <RepositoryUrl>https://github.com/seesharper/dotnet-deps.git</RepositoryUrl>
     <Authors>Bernhard Richter</Authors>
     <Description>A simple library that can be used to analyze and update NuGet dependencies.</Description>
-    <Version>2.1.1</Version>
+    <Version>2.1.2</Version>
+    <LangVersion>latest</LangVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="NuGet.Configuration" Version="6.4.0" />

src/Dotnet.Deps.Core/ProjectSystem/ScriptPackageReference.cs

@@ -12,13 +12,16 @@ public class ScriptPackageReference : NuGetPackageReference
 
         public ScriptPackageReference(string name, string version, FloatRange floatRange, ScriptFileContent content) : base(name, version, floatRange)
         {
-            referenceDirectivePattern = $@"^(\s*#r\s*""nuget:\s*)({name})(,\s*)(.*)(\s*""$)";
-            loadDirectivePattern = $@"^(\s*#load\s*""nuget:\s*)({name})(,\s*)(.*)(\s*""$)";
+            // https://stackoverflow.com/questions/8618557/why-doesnt-in-net-multiline-regular-expressions-match-crlf
+            referenceDirectivePattern = $@"^(\s*#r\s*""nuget:\s*)({name})(,\s*)(.*)(\s*""\r?$)";
+            loadDirectivePattern = $@"^(\s*#load\s*""nuget:\s*)({name})(,\s*)(.*)(\s*""\r?$)";
             this.content = content;
         }
 
         public override void Update(string newVersion)
         {
+            var match = Regex.Match(content.SourceCode, ScriptRegularExpressions.ReferenceDirectivePattern, RegexOptions.IgnoreCase | RegexOptions.Multiline);
+            var oldMatch = Regex.Match(content.SourceCode, referenceDirectivePattern, RegexOptions.IgnoreCase | RegexOptions.Multiline);
             content.SourceCode = Regex.Replace(content.SourceCode, referenceDirectivePattern, "${1}${2}${3}" + newVersion + "${5}", RegexOptions.IgnoreCase | RegexOptions.Multiline);
             content.SourceCode = Regex.Replace(content.SourceCode, loadDirectivePattern, "${1}${2}${3}" + newVersion + "${5}", RegexOptions.IgnoreCase | RegexOptions.Multiline);
         }

src/Dotnet.Deps.Core/ProjectSystem/ScriptProjectLoader.cs

@@ -8,23 +8,6 @@ namespace Dotnet.Deps.Core.ProjectSystem
 {
     public class ScriptProjectLoader : IProjectLoader
     {
-        const string Hws = @"[\x20\t]*"; // hws = horizontal whitespace
-
-        const string NuGetPattern = @"nuget:"
-                                  // https://github.com/NuGet/docs.microsoft.com-nuget/issues/543#issue-270039223
-                                  + Hws + @"(\w+(?:[_.-]\w+)*)"
-                                  + @"(?:" + Hws + "," + Hws + @"(.+?))?";
-
-        const string WholeNuGetPattern = @"^" + NuGetPattern + @"$";
-
-        const string NuGetDirectivePatternSuffix = Hws + @"""" + NuGetPattern + @"""";
-
-        const string DirectivePatternPrefix = @"^" + Hws + @"#";
-
-        const string ReferenceDirectivePattern = DirectivePatternPrefix + "r" + NuGetDirectivePatternSuffix;
-        const string LoadDirectivePattern = DirectivePatternPrefix + "load" + NuGetDirectivePatternSuffix;
-
-
         private readonly AppConsole console;
 
         public ScriptProjectLoader(AppConsole console)
@@ -38,8 +21,8 @@ public IProjectFile<NuGetPackageReference> Load(string path)
         {
             var content = File.ReadAllText(path);
             var scriptFileContent = new ScriptFileContent() { SourceCode = content };
-            var matches = Regex.Matches(content, ReferenceDirectivePattern, RegexOptions.IgnoreCase | RegexOptions.Multiline).Cast<Match>()
-                .Union(Regex.Matches(content, LoadDirectivePattern, RegexOptions.IgnoreCase | RegexOptions.Multiline).Cast<Match>()).ToArray();
+            var matches = Regex.Matches(content, ScriptRegularExpressions.ReferenceDirectivePattern, RegexOptions.IgnoreCase | RegexOptions.Multiline).Cast<Match>()
+                .Union(Regex.Matches(content, ScriptRegularExpressions.LoadDirectivePattern, RegexOptions.IgnoreCase | RegexOptions.Multiline).Cast<Match>()).ToArray();
             var packageReferences = new List<ScriptPackageReference>();
             foreach (var match in matches)
             {

src/Dotnet.Deps.Core/ProjectSystem/ScriptRegularExpressions.cs

@@ -0,0 +1,20 @@
+namespace Dotnet.Deps.Core.ProjectSystem;
+
+public static class ScriptRegularExpressions
+{
+    const string Hws = @"[\x20\t]*"; // hws = horizontal whitespace
+
+    const string NuGetPattern = @"nuget:"
+                              // https://github.com/NuGet/docs.microsoft.com-nuget/issues/543#issue-270039223
+                              + Hws + @"(\w+(?:[_.-]\w+)*)"
+                              + @"(?:" + Hws + "," + Hws + @"(.+?))?";
+
+    const string WholeNuGetPattern = @"^" + NuGetPattern + @"$";
+
+    const string NuGetDirectivePatternSuffix = Hws + @"""" + NuGetPattern + @"""";
+
+    const string DirectivePatternPrefix = @"^" + Hws + @"#";
+
+    public const string ReferenceDirectivePattern = DirectivePatternPrefix + "r" + NuGetDirectivePatternSuffix;
+    public const string LoadDirectivePattern = DirectivePatternPrefix + "load" + NuGetDirectivePatternSuffix;
+}

src/Dotnet.Deps/Dotnet.Deps.csproj

@@ -15,7 +15,7 @@
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <RepositoryType>git</RepositoryType>
     <RepositoryUrl>https://github.com/seesharper/dotnet-deps.git</RepositoryUrl>
-    <Version>3.0.1</Version>
+    <Version>3.0.2</Version>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="McMaster.Extensions.CommandLineUtils" Version="4.0.2" />