Add nightly build workflow and Windows installer

Introduces a GitHub Actions workflow for nightly builds on the main branch, automating build, installer creation, and release publishing. Adds an NSIS installer script for Windows, and updates .gitignore to exclude common binary outputs.

Author: benja2998

.github/workflows/nightly.yaml

@@ -0,0 +1,69 @@
+name: Nightly build
+
+on:
+  push:
+    branches: [ main ]
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: windows-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup NSIS
+        run: winget install NSIS.NSIS
+
+      - name: Initialize MSVC environment
+        shell: cmd
+        run: |
+          call "C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\Build\vcvars64.bat"
+          echo MSVC environment initialized.
+
+      - name: Build with build.bat
+        shell: cmd
+        run: call build.bat
+
+      - name: Compile the NSIS installer
+        shell: cmd
+        run: '"C:\Program Files (x86)\NSIS\makensis.exe" .\installer\installer.nsi'
+
+      - name: Get commit hash
+        id: get_commit
+        shell: bash
+        run: |
+          echo "COMMIT_HASH=$(git rev-parse --short HEAD)" >> $GITHUB_ENV
+
+      - name: Generate release notes
+        id: release_notes
+        shell: bash
+        run: |
+          LAST_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
+          if [ -z "$LAST_TAG" ]; then
+            RANGE=""
+          else
+            RANGE="$LAST_TAG..HEAD"
+          fi
+          git log $RANGE --pretty=format:"* %s%n> %b%n" --reverse > release_notes.txt
+          # Escape % for GH Actions env file
+          sed 's/%/%25/g; s/\r/%0D/g; s/\n/%0A/g' release_notes.txt > release_notes_escaped.txt
+          echo "RELEASE_NOTES<<EOF" >> $GITHUB_ENV
+          cat release_notes_escaped.txt >> $GITHUB_ENV
+          echo "EOF" >> $GITHUB_ENV
+
+      - name: Create release and upload installer
+        uses: softprops/action-gh-release@v2
+        with:
+          name: nightly-${{ env.COMMIT_HASH }}
+          tag_name: nightly-${{ env.COMMIT_HASH }}
+          body: |
+            ${{ env.RELEASE_NOTES }}
+
+            Note that this release is automated per COMMIT. Stability may vary.
+          files: installer\OpenCMDInstaller.exe
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -10,4 +10,10 @@ compile_commands.json
 CTestTestfile.cmake
 _deps
 CMakeUserPresets.json
-build/
+build/
+*.exe
+*.dll
+*.dylib
+*.so
+*.out
+*.bin

installer/installer.nsi

@@ -0,0 +1,31 @@
+!include LogicLib.nsh
+!include WinMessages.nsh
+!include WinVer.nsh
+!include StrFunc.nsh
+${Using:StrFunc} StrStr
+
+OutFile "OpenCMDInstaller.exe"
+InstallDir "$PROFILE\OpenCMD"
+RequestExecutionLevel user
+
+Section "Install"
+  SetOutPath "$INSTDIR"
+  File "..\build\Debug\opencmd.exe"
+
+  ReadRegStr $0 HKCU "Environment" "Path"
+  StrCpy $1 $INSTDIR
+
+  ${If} $0 != ""
+    ${StrStr} $2 $0 $1
+    ${If} $2 == ""
+      StrCpy $0 "$0;$INSTDIR"
+      WriteRegStr HKCU "Environment" "Path" "$0"
+      ; Broadcast the environment change
+      System::Call 'User32::SendMessageTimeout(i 0xffff, i ${WM_SETTINGCHANGE}, i 0, t "Environment", i 0x0002, i 5000, *i .r0)'
+    ${EndIf}
+  ${Else}
+    WriteRegStr HKCU "Environment" "Path" "$INSTDIR"
+    System::Call 'User32::SendMessageTimeout(i 0xffff, i ${WM_SETTINGCHANGE}, i 0, t "Environment", i 0x0002, i 5000, *i .r0)'
+  ${EndIf}
+  MessageBox MB_OK "Installation complete. Please restart any running programs for PATH changes to apply."
+SectionEnd