Feature/630 create assembly info

docs/usage/command-line.md

@@ -24,4 +24,34 @@ It will update the following assembly attributes:
 
 Note that contrary to when using the [MSBuild Task](msbuild-task.md) the attributes must already exist in the `AssemblyInfo.cs` or `AssemblyInfo.vb` files prior to calling GitVersion.
 
-By adding `/updateassemblyinfofilename` the name of AssemblyInfo file to update can be set.
+By adding `/updateassemblyinfo <filenames>` the name of AssemblyInfo file to update can be set.  This switch can accept multiple files with the path to the file specified relative to the working directory. 
+
+GitVersion can generate an assembly info source file for you if it does not already exist.  Use the `/ensureassemblyinfo` switch alongside `/updateassemblyinfo <filename>`, if the filename specified does not exist it will be generated based on a known template that adds:
+
+* `AssemblyVersion` will be set to the `AssemblySemVer` variable.
+* `AssemblyFileVersion` will be set to the `MajorMinorPatch` variable with a appended `.0`.
+* `AssemblyInformationalVersion` will be set to the `InformationalVersion` variable.
+
+This can be done for *.cs, *.vb and *.fs files. 
+
+When requesting that GitVersion generate an assembly info file you are limited to only specifying a single `<filename>` within the `/updateassemblyinfo` switch, this is to prevent the creation of mulitple assembly info files with the same assembly version attributes.  If this occurs your build will fail.
+
+### Example: When AssemblyInfo.cs does not exist
+`GitVersion.exe /updateassemblyinfo AssemblyInfo.cs /ensureassemblyinfo`
+
+A file is generated that contains version attributes (`AssemblyVersion`, `AssemblyFileVersion`, `AssemblyInformationalVersion`)
+
+### Example: When AssemblyInfo.cs already exists
+`GitVersion.exe /updateassemblyinfo AssemblyInfo.cs /ensureassemblyinfo`
+
+All known attributes (`AssemblyVersion`, `AssemblyFileVersion`, `AssemblyInformationalVersion`) will be updated
+
+### Example: When AssemblyInfo.cs and AssemblyVersionInfo.cs do not exist
+`GitVersion.exe /updateassemblyinfo AssemblyInfo.cs AssemblyVersionInfo.cs /ensureassemblyinfo`
+
+Will result in command line argument error
+
+### Example: When AssemblyInfo.cs and AssemblyVersionInfo.cs already exist
+`GitVersion.exe /updateassemblyinfo AssemblyInfo.cs AssemblyVersionInfo.cs`
+
+Will iterate through each file and update known attributes (`AssemblyVersion`, `AssemblyFileVersion`, `AssemblyInformationalVersion`).

src/GitVersionCore.Tests/TestFileSystem.cs

@@ -69,6 +69,19 @@ public Stream OpenRead(string path)
 
     public void CreateDirectory(string path)
     {
+        if (fileSystem.ContainsKey(path))
+        {
+            fileSystem[path] = "";
+        }
+        else
+        {
+            fileSystem.Add(path, "");
+        }
+    }
+
+    public bool DirectoryExists(string path)
+    {
+        return fileSystem.ContainsKey(path);
     }
 
     public long GetLastDirectoryWrite(string path)

src/GitVersionCore/Extensions/ReadEmbeddedResourceExtensions.cs

@@ -0,0 +1,30 @@
+namespace GitVersionCore.Extensions
+{
+    using System.IO;
+
+    public static class ReadEmbeddedResourceExtensions
+    {
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <typeparam name="T"></typeparam>
+        /// <param name="resourceName">Should include Namespace separated path to resource in assembly referenced by <typeparamref name="T"/></param>
+        /// <returns></returns>
+        public static string ReadAsStringFromEmbeddedResource<T>(this string resourceName)
+        {
+            using (var stream = resourceName.ReadFromEmbeddedResource<T>())
+            {
+                using (var rdr = new StreamReader(stream))
+                {
+                    return rdr.ReadToEnd();
+                }
+            }
+        }
+
+        public static Stream ReadFromEmbeddedResource<T>(this string resourceName)
+        {
+            var assembly = typeof(T).Assembly;
+            return assembly.GetManifestResourceStream(resourceName);
+        }
+    }
+}

src/GitVersionCore/GitVersionCore.csproj

@@ -109,6 +109,7 @@
     <Compile Include="Configuration\Init\StepResult.cs" />
     <Compile Include="EffectiveConfiguration.cs" />
     <Compile Include="ExecuteCore.cs" />
+    <Compile Include="Extensions\ReadEmbeddedResourceExtensions.cs" />
     <Compile Include="GitPreparer.cs" />
     <Compile Include="GitVersionCache.cs" />
     <Compile Include="Helpers\FileSystem.cs" />
@@ -121,6 +122,8 @@
     <Compile Include="SemanticVersionExtensions.cs" />
     <Compile Include="SemanticVersionFormatValues.cs" />
     <Compile Include="StringFormatWith.cs" />
+    <Compile Include="VersionAssemblyInfoResources\AssemblyVersionInfoTemplates.cs" />
+    <EmbeddedResource Include="VersionAssemblyInfoResources\VersionAssemblyInfo.cs" />
     <Compile Include="VersionCalculation\BaseVersionCalculator.cs" />
     <Compile Include="VersionCalculation\BaseVersionCalculators\BaseVersion.cs" />
     <Compile Include="VersionCalculation\BaseVersionCalculators\ConfigNextVersionBaseVersionStrategy.cs" />
@@ -161,6 +164,8 @@
     <Content Include="FodyWeavers.xml">
       <SubType>Designer</SubType>
     </Content>
+    <EmbeddedResource Include="VersionAssemblyInfoResources\VersionAssemblyInfo.vb" />
+    <EmbeddedResource Include="VersionAssemblyInfoResources\VersionAssemblyInfo.fs" />
   </ItemGroup>
   <ItemGroup>
     <None Include="NugetAssets\GitVersion.nuspec">

src/GitVersionCore/Helpers/FileSystem.cs

@@ -56,6 +56,11 @@ public void CreateDirectory(string path)
             Directory.CreateDirectory(path);
         }
 
+        public bool DirectoryExists(string path)
+        {
+            return Directory.Exists(path);
+        }
+
         public long GetLastDirectoryWrite(string path)
         {
             return new DirectoryInfo(path)

src/GitVersionCore/Helpers/IFileSystem.cs

@@ -15,6 +15,7 @@ public interface IFileSystem
         Stream OpenWrite(string path);
         Stream OpenRead(string path);
         void CreateDirectory(string path);
+        bool DirectoryExists(string path);
         long GetLastDirectoryWrite(string path);
     }
 }

src/GitVersionCore/VersionAssemblyInfoResources/AssemblyVersionInfoTemplates.cs

@@ -0,0 +1,38 @@
+namespace GitVersion.VersionAssemblyInfoResources
+{
+    using System.Collections.Generic;
+    using System.IO;
+    using System.Linq;
+    using GitVersionCore.Extensions;
+
+    public class AssemblyVersionInfoTemplates
+    {
+        static IDictionary<string, FileInfo> assemblyInfoSourceList;
+
+        static AssemblyVersionInfoTemplates()
+        {
+            var enclosingNamespace = typeof(AssemblyVersionInfoTemplates).Namespace;
+
+            var files = typeof(AssemblyVersionInfoTemplates)
+                .Assembly
+                .GetManifestResourceNames()
+                .Where(n => n.StartsWith(enclosingNamespace ?? string.Empty)).Select(f => new FileInfo(f));
+
+            assemblyInfoSourceList = files.ToDictionary(k => k.Extension, v => v);
+        }
+
+        public static string GetAssemblyInfoTemplateFor(string assemblyInfoFile)
+        {
+            var fi = new FileInfo(assemblyInfoFile);
+            if (assemblyInfoSourceList.ContainsKey(fi.Extension))
+            {
+                var template = assemblyInfoSourceList[fi.Extension];
+                if (template != null)
+                {
+                    return template.Name.ReadAsStringFromEmbeddedResource<AssemblyVersionInfoTemplates>();
+                }
+            }
+            return null;
+        }
+    }
+}

src/GitVersionCore/VersionAssemblyInfoResources/VersionAssemblyInfo.cs

@@ -0,0 +1,13 @@
+//------------------------------------------------------------------------------ 
+// <auto-generated> 
+// This code was generated by GitVersion.
+// 
+// You can modify this code as we will not overwrite it when re-executing GitVersion
+// </auto-generated> 
+//------------------------------------------------------------------------------
+
+using System.Reflection;
+
+[assembly: AssemblyFileVersion("0.0.0.0")]
+[assembly: AssemblyVersion("0.0.0.0")]
+[assembly: AssemblyInformationalVersion("0.0.0.0")]

src/GitVersionCore/VersionAssemblyInfoResources/VersionAssemblyInfo.fs

@@ -0,0 +1,14 @@
+//------------------------------------------------------------------------------ 
+// <auto-generated> 
+// This code was generated by GitVersion. 
+// 
+// You can modify this code as we will not overwrite it when re-executing GitVersion
+// </auto-generated> 
+//------------------------------------------------------------------------------
+
+open System.Reflection
+
+[<assembly: AssemblyFileVersion("0.0.0.0")>]
+[<assembly: AssemblyVersion("0.0.0.0")>]
+[<assembly: AssemblyInformationalVersion("0.0.0.0")>]
+()

src/GitVersionCore/VersionAssemblyInfoResources/VersionAssemblyInfo.vb

@@ -0,0 +1,13 @@
+''------------------------------------------------------------------------------ 
+'' <auto-generated> 
+'' This code was generated by GitVersion. 
+'' 
+'' You can modify this code as we will not overwrite it when re-executing GitVersion
+'' </auto-generated> 
+''------------------------------------------------------------------------------
+
+Imports System.Reflection
+
+<assembly: AssemblyFileVersion("0.0.0.0")>
+<assembly: AssemblyVersion("0.0.0.0")>
+<assembly: AssemblyInformationalVersion("0.0.0.0")>

src/GitVersionExe.Tests/ArgumentParserTests.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using GitVersion;
 using NUnit.Framework;
 using Shouldly;
@@ -175,6 +176,10 @@ public void Unknown_argument_should_throw()
     [TestCase("-updateAssemblyInfo 1")]
     [TestCase("-updateAssemblyInfo")]
     [TestCase("-updateAssemblyInfo -proj foo.sln")]
+    [TestCase("-updateAssemblyInfo assemblyInfo.cs")]
+    [TestCase("-updateAssemblyInfo assemblyInfo.cs -ensureassemblyinfo")]
+    [TestCase("-updateAssemblyInfo assemblyInfo.cs otherAssemblyInfo.cs")]
+    [TestCase("-updateAssemblyInfo Assembly.cs Assembly.cs -ensureassemblyinfo")]
     public void update_assembly_info_true(string command)
     {
         var arguments = ArgumentParser.ParseArguments(command);
@@ -189,22 +194,60 @@ public void update_assembly_info_false(string command)
         arguments.UpdateAssemblyInfo.ShouldBe(false);
     }
 
+    [TestCase("-updateAssemblyInfo Assembly.cs Assembly1.cs -ensureassemblyinfo")]
+    public void create_mulitple_assembly_info_protected(string command)
+    {
+        var exception = Assert.Throws<WarningException>(() => ArgumentParser.ParseArguments(command));
+        exception.Message.ShouldBe("Can't specify multiple assembly info files when using -ensureassemblyinfo switch, either use a single assembly info file or do not specify -ensureassemblyinfo and create assembly info files manually");
+    }
+
     [Test]
     public void update_assembly_info_with_filename()
     {
         var arguments = ArgumentParser.ParseArguments("-updateAssemblyInfo CommonAssemblyInfo.cs");
         arguments.UpdateAssemblyInfo.ShouldBe(true);
-        arguments.UpdateAssemblyInfoFileName.ShouldBe("CommonAssemblyInfo.cs");
+        arguments.UpdateAssemblyInfoFileName.ShouldContain("CommonAssemblyInfo.cs");
+    }
+
+    [Test]
+    public void update_assembly_info_with_multiple_filenames()
+    {
+        var arguments = ArgumentParser.ParseArguments("-updateAssemblyInfo CommonAssemblyInfo.cs VersionAssemblyInfo.cs");
+        arguments.UpdateAssemblyInfo.ShouldBe(true);
+        arguments.UpdateAssemblyInfoFileName.Count.ShouldBe(2);
+        arguments.UpdateAssemblyInfoFileName.ShouldContain("CommonAssemblyInfo.cs");
+        arguments.UpdateAssemblyInfoFileName.ShouldContain("VersionAssemblyInfo.cs");
     }
 
     [Test]
     public void update_assembly_info_with_relative_filename()
     {
         var arguments = ArgumentParser.ParseArguments("-updateAssemblyInfo ..\\..\\CommonAssemblyInfo.cs");
         arguments.UpdateAssemblyInfo.ShouldBe(true);
-        arguments.UpdateAssemblyInfoFileName.ShouldBe("..\\..\\CommonAssemblyInfo.cs");
+        arguments.UpdateAssemblyInfoFileName.ShouldContain("..\\..\\CommonAssemblyInfo.cs");
     }
 
+    [Test]
+    public void ensure_assembly_info_true_when_found()
+    {
+        var arguments = ArgumentParser.ParseArguments("-ensureAssemblyInfo");
+        arguments.EnsureAssemblyInfo.ShouldBe(true);
+    }
+
+    [Test]
+    public void ensure_assembly_info_true()
+    {
+        var arguments = ArgumentParser.ParseArguments("-ensureAssemblyInfo true");
+        arguments.EnsureAssemblyInfo.ShouldBe(true);
+    }
+
+    [Test]
+    public void ensure_assembly_info_false()
+    {
+        var arguments = ArgumentParser.ParseArguments("-ensureAssemblyInfo false");
+        arguments.EnsureAssemblyInfo.ShouldBe(false);
+    }
+
     [Test]
     public void dynamicRepoLocation()
     {