Add Linux builds to AppVeyor

Using Qt5.15.2, their 6.x installations are incomplete.

appveyor.yml

@@ -4,8 +4,10 @@ skip_tags: true
 image:
   - Visual Studio 2019
   - macos-monterey
+  - Ubuntu2204
 
 environment:
+  APPVEYOR_SAVE_CACHE_ON_ERROR: true
   GC_GOOGLE_CALENDAR_CLIENT_SECRET:
     secure: hwjHTrSAMEbKd9PA+5x/zI4x5Uk4KQm1hdfZzkwiu8k=
   GC_GOOGLE_DRIVE_CLIENT_ID:
@@ -57,13 +59,23 @@ init:
 # Setup NSIS
 - cmd: set PATH=%PATH%;C:\"Program Files (x86)"\NSIS
 
-# macOS
-# Setup QT 6.5
-- sh: export QTDIR=$HOME/Qt/6.5/macos
-- sh: export PATH=$HOME/Qt/6.5/macos/bin:$PATH
-- sh: qmake --version
-# Setup Xcode 14.2
-- sh: sudo xcode-select -s /Applications/Xcode-14.2.0.app
+# Linux / macOS
+- sh: >-
+    if $CI_LINUX; then
+      export OS_NAME=linux
+      # Setup QT 5.15
+      export QTDIR=$HOME/Qt/5.15/gcc_64
+      export PATH=$HOME/Qt/5.15/gcc_64/bin:$PATH
+      qmake --version
+    else
+      export OS_NAME=macos
+      # Setup QT 6.5
+      export QTDIR=$HOME/Qt/6.5/macos
+      export PATH=$HOME/Qt/6.5/macos/bin:$PATH
+      qmake --version
+      # Setup Xcode 14.2
+      sudo xcode-select -s /Applications/Xcode-14.2.0.app
+    fi
 
 cache:
 - gc-ci-libs.zip -> appveyor.yml
@@ -137,8 +149,8 @@ install:
 - cmd: echo GSL_INCLUDES=c:\tools\vcpkg\installed\x64-windows\include >> src\gcconfig.pri
 - cmd: echo GSL_LIBS=-Lc:\tools\vcpkg\installed\x64-windows\lib -lgsl -lgslcblas >> src\gcconfig.pri
 
-# macOS
-- sh: appveyor/macos/install.sh
+# Linux / macOS
+- sh: bash appveyor/$OS_NAME/install.sh
 
 before_build:
 
@@ -159,10 +171,12 @@ before_build:
 # Avoid macro redefinition warnings
 - cmd: echo DEFINES+=_MATH_DEFINES_DEFINED >> src\gcconfig.pri
 
-# macOS
-- sh: appveyor/macos/before_build.sh
+# Linux / macOS
+- sh: bash appveyor/$OS_NAME/before_build.sh
+# Define GC version string, only for tagged builds
+- sh: if $APPVEYOR_REPO_TAG; then echo DEFINES+=GC_VERSION=VERSION_STRING >> src/gcconfig.pri; fi
 
-# Patch Secrets.h (Windows and macOS)
+# Patch Secrets.h (Windows / Linux / macOS)
 - ps: (Get-Content src\Core\Secrets.h) -replace '__GC_GOOGLE_CALENDAR_CLIENT_SECRET__', $env:GC_GOOGLE_CALENDAR_CLIENT_SECRET | Set-Content src\Core\Secrets.h
 - ps: (Get-Content src\Core\Secrets.h) -replace '__GC_GOOGLE_DRIVE_CLIENT_ID__', $env:GC_GOOGLE_DRIVE_CLIENT_ID | Set-Content src\Core\Secrets.h
 - ps: (Get-Content src\Core\Secrets.h) -replace '__GC_GOOGLE_DRIVE_CLIENT_SECRET__', $env:GC_GOOGLE_DRIVE_CLIENT_SECRET | Set-Content src\Core\Secrets.h
@@ -192,7 +206,7 @@ build_script:
 - cmd: if not exist qwt\lib\qwt.lib jom -j1 sub-qwt
 - cmd: jom -j4 sub-src
 
-# macOS
+# Linux / macOS
 - sh: qmake build.pro -r QMAKE_CXXFLAGS_WARN_ON+="-Wno-unused-private-field -Wno-c++11-narrowing -Wno-deprecated-declarations -Wno-deprecated-register -Wno-nullability-completeness -Wno-sign-compare -Wno-inconsistent-missing-override" QMAKE_CFLAGS_WARN_ON+="-Wno-deprecated-declarations -Wno-sign-compare"
 - sh: if test ! -f qwt/lib/libqwt.a; then make sub-qwt; fi
 - sh: make -j4 sub-src
@@ -231,8 +245,8 @@ after_build:
 - ps: if ($isWindows) { Set-AppveyorBuildVariable -Name 'PUBLISH_BINARIES' -Value false }
 - ps: if ($isWindows -And $env:APPVEYOR_REPO_COMMIT_MESSAGE_EXTENDED -Match "\[publish binaries\]") { Set-AppveyorBuildVariable -Name 'PUBLISH_BINARIES' -Value true }
 
-# macOS
-- sh: appveyor/macos/after_build.sh
+# Linux / macOS
+- sh: bash appveyor/$OS_NAME/after_build.sh
 
 test_script:
 
@@ -242,16 +256,24 @@ test_script:
 - ps: if ($isWindows) { CertUtil -hashfile GoldenCheetah_v3.7_x64.exe sha256 | Select-Object -First 2 | Add-Content GCversionWindows.txt }
 - cmd: type GCversionWindows.txt
 
-# macOS
-- sh: src/GoldenCheetah.app/Contents/MacOS/GoldenCheetah --version 2>GCversionMacOS.txt
-- sh: git log -1 >> GCversionMacOS.txt
-- sh: shasum -a 256 GoldenCheetah_v3.7_x64.dmg | cut -f 1 -d ' ' >> GCversionMacOS.txt
-- sh: cat GCversionMacOS.txt
+# Linux / macOS
+- sh: >-
+    if $CI_LINUX; then
+      ./GoldenCheetah_v3.7_x64.AppImage --version 2>GCversionLinux.txt
+      git log -1 >> GCversionLinux.txt
+      shasum -a 256 GoldenCheetah_v3.7_x64.AppImage | cut -f 1 -d ' '  >> GCversionLinux.txt
+      cat GCversionLinux.txt
+    else
+      src/GoldenCheetah.app/Contents/MacOS/GoldenCheetah --version 2>GCversionMacOS.txt
+      git log -1 >> GCversionMacOS.txt
+      shasum -a 256 GoldenCheetah_v3.7_x64.dmg | cut -f 1 -d ' ' >> GCversionMacOS.txt
+      cat GCversionMacOS.txt
+    fi
 
 artifacts:
 # Windows
 - path: GoldenCheetah_v3.7_x64.exe
-  name: GCinstallerWindows
+  name: GCwindowsInstaller
 - path: GCversionWindows.txt
   name: GCversionWindows
 # macOS
@@ -259,6 +281,11 @@ artifacts:
   name: GCmacOSpackage
 - path: GCversionMacOS.txt
   name: GCversionMacOS
+# Linux
+- path: GoldenCheetah_v3.7_x64.AppImage
+  name: GClinuxAppImage
+- path: GCversionLinux.txt
+  name: GCversionLinux
 
 deploy:
 # deploy continuous builds to GitHub release