improve build instructions,

add ubuntu build

Author: segrax

.github/workflows/build-ubuntu.yml

@@ -0,0 +1,26 @@
+name: build-ubuntu
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  ubuntu:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y cmake ninja-build qt6-base-dev libsdl3-dev libsdl3-mixer-dev
+
+      - name: Configure
+        run: cmake -S . -B build -G Ninja
+
+      - name: Build
+        run: cmake --build build

.github/workflows/build.yml

@@ -27,8 +27,14 @@ jobs:
       - name: Build (Release x64)
         shell: pwsh
         run: |
+          if (Test-Path Run) { Remove-Item Run -Recurse -Force }
           .\Project\build_vs.cmd x64 Release
 
+      - name: List Run contents
+        shell: pwsh
+        run: |
+          Get-ChildItem -Path Run -File | Format-Table Name, Length
+
       - name: Package build
         shell: pwsh
         run: |

CMakeLists.txt

@@ -317,6 +317,12 @@ if(WIN32)
             COMMENT "Copy runtime DLLs to Run")
     endif()
 
+    add_custom_command(TARGET editor POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different
+            "${CMAKE_CURRENT_LIST_DIR}/Dependencies/OpenFodder/openfodder.ini.example"
+            "${CMAKE_CURRENT_LIST_DIR}/Run/openfodder.ini"
+        COMMENT "Copy openfodder.ini into Run")
+
     if(TARGET Qt6::qmake)
         get_target_property(_qt6_qmake Qt6::qmake IMPORTED_LOCATION)
         get_filename_component(_qt6_bin_dir "${_qt6_qmake}" DIRECTORY)

README.md

@@ -1,5 +1,5 @@
 # Open Fodder Editor
-[![Build Status](https://travis-ci.com/OpenFodder/editor.svg?branch=master)](https://travis-ci.com/OpenFodder/editor)
+[![build](https://github.com/OpenFodder/editor/actions/workflows/build.yml/badge.svg?branch=master)](https://github.com/OpenFodder/editor/actions/workflows/build.yml)
 
 ![ofed](https://user-images.githubusercontent.com/1327406/47386538-9dd6e400-d758-11e8-90ab-127d81909407.png)
 
@@ -9,9 +9,20 @@ Open Fodder Editor is a campaign and map editor for [Open Fodder](https://github
 
 #### To Compile
 
-* SDL2
-* SDL2-Mixer
-* QT5
+Windows (Visual Studio + vcpkg):
+1. `Project\build_vs.cmd` (defaults to x64 Release)
+2. The output is placed in `Run\` (exe + required DLLs/plugins).
+
+Linux (Ubuntu/Debian):
+1. Install deps: `sudo apt-get install cmake ninja-build qt6-base-dev libsdl3-dev libsdl3-mixer-dev`
+   (If SDL3 packages are unavailable, build/install SDL3 + SDL3_mixer from source.)
+2. Configure: `cmake -S . -B build -G Ninja`
+3. Build: `cmake --build build`
+
+Notes:
+* Dependencies are fetched with vcpkg via `Project\build_vs.cmd`.
+* The build uses Qt6, SDL3, and SDL3_mixer.
+* Run folder is the debugger working directory.
 
 #### Requirements