add github actions (#4164)

.ci/Fedora33/Dockerfile

@@ -1,4 +1,4 @@
-FROM fedora:32
+FROM fedora:33
 
 RUN dnf install -y \
         @development-tools \

.ci/compile.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# This script is to be used in .travis.yaml from the project root directory, do not use it from somewhere else.
+# This script is to be used by the ci environment from the project root directory, do not use it from somewhere else.
 
 # Read arguments
 while [[ "$@" ]]; do
@@ -58,7 +58,7 @@ done
 
 # Check formatting using clang-format
 if [[ $CHECK_FORMAT ]]; then
-  source ./.ci/travis-lint.sh
+  source ./.ci/lint.sh
 fi
 
 set -e
@@ -69,7 +69,7 @@ mkdir -p build
 cd build
 
 if ! [[ $CORE_AMOUNT ]]; then
-  CORE_AMOUNT="2" # travis machines have 2 cores
+  CORE_AMOUNT="2" # default machines have 2 cores
 fi
 
 # Add cmake flags

.ci/docker.sh

@@ -1,6 +1,7 @@
 #!/bin/bash
 
-# This script is to be sourced in .travis.yaml from the project root directory, do not use it from somewhere else.
+# This script is to be used by the ci environment from the project root directory, do not use it from somewhere else.
+
 # Creates or loads docker images to use in compilation, creates RUN function to start compilation on the docker image.
 # --get loads the image from a previously saved image cache, will build if no image is found
 # --build builds the image from the Dockerfile in .ci/$NAME
@@ -9,7 +10,7 @@
 # uses env: NAME CACHE BUILD GET SAVE (correspond to args: <name> --set-cache <cache> --build --get --save)
 # sets env: RUN CCACHE_DIR IMAGE_NAME RUN_ARGS RUN_OPTS BUILD_SCRIPT
 # exitcode: 1 for failure, 2 for missing dockerfile, 3 for invalid arguments
-export BUILD_SCRIPT=".ci/travis-compile.sh"
+export BUILD_SCRIPT=".ci/compile.sh"
 
 project_name="cockatrice"
 save_extension=".tar.gz"
@@ -64,10 +65,14 @@ if ! [[ -r $docker_dir/Dockerfile ]]; then
   return 2 # even if the image is cached, we do not want to run if there is no way to build this image
 fi
 
-if ! [[ -d $CACHE ]]; then
-  echo "could not find cache dir: $CACHE" >&2
-  unset CACHE
+if ! [[ $CACHE ]]; then
+  echo "cache dir is not set!" >&2
 else
+  if ! [[ -d $CACHE ]]; then
+    echo "could not find cache dir: $CACHE" >&2
+    mkdir -p $CACHE
+    unset GET # the dir is empty
+  fi
   if [[ $GET || $SAVE ]]; then
     img_dir="$CACHE/$image_cache"
     img_save="$img_dir/$IMAGE_NAME$save_extension"

.ci/get_github_upload_url.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+# this script is to be used by the ci to fetch the github upload url
+# using curl and jq
+[[ $ref ]] || missing+=" ref"
+[[ $repo ]] || missing+=" repo"
+if [[ $missing ]]; then
+  echo "missing env:$missing" >&2
+  exit 2
+fi
+tag="${ref##*/}"
+api_url="https://api.github.com/repos/$repo/releases/tags/$tag"
+upload_url="$(curl "$api_url" | jq -r '.upload_url')"
+if [[ $upload_url && $upload_url != null ]]; then
+  echo "$upload_url"
+  exit 0
+else
+  echo "failed to fetch upload url from $api_url" >&2
+  exit 1
+fi

.ci/lint.sh

@@ -1,9 +1,19 @@
 #!/bin/bash
 
-# Check formatting using clang-format
+# fetch master branch
+git fetch origin master
+
+# unshallow if needed
+echo "Finding merge base"
+if ! git merge-base origin/master HEAD; then
+  echo "Could not find merge base, unshallowing repo"
+  git fetch --unshallow
+fi
+
+# Check formatting using clangify
 echo "Checking your code using clang-format..."
 
-diff="$(./clangify.sh --diff --cf-version)"
+diff="$(./clangify.sh --diff --cf-version --branch origin/master)"
 err=$?
 
 case $err in