Use GitHub Actions as CI service (#5602)

* ci: migrate to GitHub Actions

* ci: linux-mingw: use lief for parsing PE files

* ci: fix left-over issues with clang-format check

* ci: workaround libc++ issue on macOS

* appveyor: remove build scripts

* README: add GitHub Actions badge and ...

remove Travis CI and Appveyor badges

.ci/linux-fresh/build.sh

@@ -0,0 +1,3 @@
+#!/bin/bash -ex
+mkdir -p "$HOME/.ccache"
+docker run --env-file .travis/common/travis-ci.env -v $(pwd):/citra -v "$HOME/.ccache":/root/.ccache citraemu/build-environments:linux-fresh /bin/bash -ex /citra/.travis/linux/docker.sh

.ci/linux-fresh/docker.sh

@@ -0,0 +1,7 @@
+#!/bin/bash -ex
+
+mkdir build && cd build
+cmake .. -G Ninja -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=/usr/lib/ccache/gcc -DCMAKE_CXX_COMPILER=/usr/lib/ccache/g++ -DENABLE_QT_TRANSLATION=ON -DCITRA_ENABLE_COMPATIBILITY_REPORTING=${ENABLE_COMPATIBILITY_REPORTING:-"OFF"} -DENABLE_COMPATIBILITY_LIST_DOWNLOAD=ON -DUSE_DISCORD_PRESENCE=ON -DENABLE_FFMPEG_VIDEO_DUMPER=ON
+ninja
+
+ctest -VV -C Release

.ci/linux-fresh/upload.sh

@@ -0,0 +1,19 @@
+#!/bin/bash -ex
+
+. .ci/common/pre-upload.sh
+
+REV_NAME="citra-linux-${GITDATE}-${GITREV}"
+ARCHIVE_NAME="${REV_NAME}.tar.xz"
+COMPRESSION_FLAGS="-cJvf"
+
+mkdir "$REV_NAME"
+
+cp build/bin/Release/citra "$REV_NAME"
+cp build/bin/Release/citra-room "$REV_NAME"
+cp build/bin/Release/citra-qt "$REV_NAME"
+
+# We need icons on Linux for .desktop entries
+mkdir "$REV_NAME/dist"
+cp dist/icon.png "$REV_NAME/dist/citra.png"
+
+. .ci/common/post-upload.sh