Use changelog to generate release notes

.github/workflows/release.yml

@@ -40,11 +40,11 @@ jobs:
           key: ${{ runner.os }}-${{ hashFiles('**/global.json', '**/*.csproj', '**/Directory.Packages.props') }}
 
       - name: Pack 7ZSfx installer
-        run: .\Tools\NukeBuild\build.cmd Test Pack7ZSfx
+        run: .\Tools\NukeBuild\build.cmd Test Pack7ZSfx PrepareChangelog
 
       - name: Upload 7ZSfx installer to github release
         uses: softprops/action-gh-release@de2c0eb89ae2a093876385947365aca7b0e5f844 # v1.0.0
         with:
           files: ./Artifacts/ImoutoRebirth-*.*
-          body:  ImoutoRebirth-*.exe is a self-extracting 7z archive. You can use it directly, or download the 7z archive itself. Please read the installation instructions in the [README](https://github.com/ImoutoChan/ImoutoRebirth#installation) for more information.
+          body_path: ./CHANGELOG.RESULT.md
           name: ImoutoRebirth ${{ steps.gitversion.outputs.majorMinorPatch }}

.gitignore

@@ -9,3 +9,4 @@ node_modules/
 /Source/Imouto.Extensions/chrome/src/dist/*
 /Source/.vs/*
 /Source/ImoutoRebirth.Hasami/appsettings.json
+/CHANGELOG.RESULT.md

.nuke/build.schema.json

@@ -75,6 +75,7 @@
               "Clean",
               "Compile",
               "Pack7ZSfx",
+              "PrepareChangelog",
               "Publish",
               "Restore",
               "Test"
@@ -94,6 +95,7 @@
               "Clean",
               "Compile",
               "Pack7ZSfx",
+              "PrepareChangelog",
               "Publish",
               "Restore",
               "Test"

CHANGELOG.TEMPLATE.md

@@ -0,0 +1,2 @@
+ImoutoRebirth-*.exe is a self-extracting 7z archive. You can use it directly, or download the 7z archive itself.
+For more information please read the installation instructions in the [README](https://github.com/ImoutoChan/ImoutoRebirth#installation).

CHANGELOG.md

@@ -13,3 +13,4 @@
 
 ### Infrastructure
 * Add changelog file
+* Add build step to create release notes body based on latest changelog

Source/ImoutoRebirth.sln

@@ -110,6 +110,7 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Tools", "Tools", "{2438D898
 		..\README.RU.md = ..\README.RU.md
 		..\.github\workflows\release.yml = ..\.github\workflows\release.yml
 		..\CHANGELOG.md = ..\CHANGELOG.md
+		..\CHANGELOG.TEMPLATE.md = ..\CHANGELOG.TEMPLATE.md
 	EndProjectSection
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NukeBuild", "..\Tools\NukeBuild\NukeBuild.csproj", "{DBC3E098-5984-4FD6-9F83-18FBE9A23683}"

Tools/NukeBuild/Build.cs

@@ -1,6 +1,8 @@
 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
+using System.Text;
 using Nuke.Common;
 using Nuke.Common.CI.GitHubActions;
 using Nuke.Common.IO;
@@ -175,4 +177,30 @@ AbsolutePath[] GetDirectoriesToDelete(string projectName, AbsolutePath projectOu
                 .SetOutputArchiveFile(OutputLatestDirectory.Parent / $"{VersionedName}.7z")
                 .SetSourceDirectory(OutputLatestDirectory));
         });
+
+    Target PrepareChangelog => _ => _
+        .Executes(() =>
+        {
+            var changelog = RootDirectory / "CHANGELOG.md";
+            var changelogResult = RootDirectory / "CHANGELOG.RESULT.md";
+            var changelogTemplate = RootDirectory / "CHANGELOG.TEMPLATE.md";
+
+            var changelogTemplateContent = File.ReadAllText(changelogTemplate);
+
+            var changelogContent = new StringBuilder();
+            changelogContent.AppendLine($"# {GitVersion.NuGetVersionV2}");
+            foreach (var changeLogLine in File.ReadLines(changelog))
+            {
+                if (changeLogLine.StartsWith("# Unreleased"))
+                    continue;
+
+                if (changeLogLine.StartsWith("# "))
+                    break;
+
+                changelogContent.AppendLine(changeLogLine);
+            }
+
+            var newChangelogContent = changelogTemplateContent + Environment.NewLine + changelogContent;
+            File.WriteAllText(changelogResult, newChangelogContent);
+        });
 }