Fix builds from CI showing up as modified (#4384)

This change also adds a new environment variable used while building: `CHATTERINO_REQUIRE_CLEAN_GIT` which, if set, will error out during your build's GIT stage.
This is used in CI to ensure we don't accidentally introduce a change that would result in builds showing up as "modified" again.

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

.github/workflows/build.yml

@@ -14,6 +14,7 @@ concurrency:
 
 env:
   C2_ENABLE_LTO: ${{ github.ref == 'refs/heads/master' }}
+  CHATTERINO_REQUIRE_CLEAN_GIT: On
 
 jobs:
   build:
@@ -81,9 +82,8 @@ jobs:
         uses: jurplel/install-qt-action@v3.0.0
         with:
           cache: true
-          cache-key-prefix: ${{ runner.os }}-QtCache-${{ matrix.qt-version }}
+          cache-key-prefix: ${{ runner.os }}-QtCache-${{ matrix.qt-version }}-v2
           version: ${{ matrix.qt-version }}
-          dir: "${{ github.workspace }}/qt/"
 
       # WINDOWS
       - name: Cache conan packages part 1

.gitignore

@@ -118,3 +118,6 @@ qt6.natvis
 
 # Autogenerated resource file
 resources/resources_autogenerated.qrc
+
+# Leftovers from running `aqt install`
+aqtinstall.log

CHANGELOG.md

@@ -33,6 +33,7 @@
 - Bugfix: Fixed the split "Search" menu action not opening the correct search window. (#4305)
 - Bugfix: Fixed an issue on Windows when opening links in incognito mode that contained forward slashes in hash (#4307)
 - Bugfix: Fixed an issue where beta versions wouldn't update to stable versions correctly. (#4329)
+- Bugfix: Fixed builds from GitHub showing up as modified. (#4384)
 - Bugfix: Avoided crash that could occur when receiving channel point reward information. (#4360)
 - Dev: Changed sound backend from Qt to miniaudio. (#4334)
 - Dev: Removed protocol from QApplication's Organization Domain (so changed from `https://www.chatterino.com` to `chatterino.com`). (#4256)

cmake/GIT.cmake

@@ -19,11 +19,11 @@ set(GIT_COMMIT "GIT-REPOSITORY-NOT-FOUND")
 set(GIT_RELEASE "${PROJECT_VERSION}")
 set(GIT_MODIFIED 0)
 
-if (DEFINED ENV{CHATTERINO_SKIP_GIT_GEN})
+if(DEFINED ENV{CHATTERINO_SKIP_GIT_GEN})
     return()
-endif ()
+endif()
 
-if (GIT_EXECUTABLE)
+if(GIT_EXECUTABLE)
     execute_process(
         COMMAND ${GIT_EXECUTABLE} rev-parse --is-inside-work-tree
         WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
@@ -31,13 +31,14 @@ if (GIT_EXECUTABLE)
         OUTPUT_QUIET
         ERROR_QUIET
     )
-    if (GIT_REPOSITORY_NOT_FOUND)
+
+    if(GIT_REPOSITORY_NOT_FOUND)
         set(GIT_REPOSITORY_FOUND 0)
-    else ()
+    else()
         set(GIT_REPOSITORY_FOUND 1)
     endif()
 
-    if (GIT_REPOSITORY_FOUND)
+    if(GIT_REPOSITORY_FOUND)
         execute_process(
             COMMAND ${GIT_EXECUTABLE} rev-parse --short HEAD
             WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
@@ -65,21 +66,28 @@ if (GIT_EXECUTABLE)
             OUTPUT_VARIABLE GIT_MODIFIED_OUTPUT
             OUTPUT_STRIP_TRAILING_WHITESPACE
         )
-    endif (GIT_REPOSITORY_FOUND)
-endif (GIT_EXECUTABLE)
+    endif(GIT_REPOSITORY_FOUND)
+endif(GIT_EXECUTABLE)
+
+if(GIT_MODIFIED_OUTPUT)
+    if(DEFINED ENV{CHATTERINO_REQUIRE_CLEAN_GIT})
+        message(STATUS "git status --porcelain -z\n${GIT_MODIFIED_OUTPUT}")
+        message(FATAL_ERROR "Git repository was expected to be clean, but modifications were found!")
+    endif()
 
-if (GIT_MODIFIED_OUTPUT)
     set(GIT_MODIFIED 1)
-endif ()
+endif()
 
-if (DEFINED ENV{GIT_HASH})
+if(DEFINED ENV{GIT_HASH})
     set(GIT_HASH "$ENV{GIT_HASH}")
-endif ()
-if (DEFINED ENV{GIT_COMMIT})
+endif()
+
+if(DEFINED ENV{GIT_COMMIT})
     set(GIT_COMMIT "$ENV{GIT_COMMIT}")
-endif ()
-if (DEFINED ENV{GIT_RELEASE})
+endif()
+
+if(DEFINED ENV{GIT_RELEASE})
     set(GIT_RELEASE "$ENV{GIT_RELEASE}")
-endif ()
+endif()
 
 message(STATUS "Injected git values: ${GIT_COMMIT} (${GIT_RELEASE}) modified: ${GIT_MODIFIED}")