Add automated linux-aarch64 build

.prepare_deploy

@@ -35,6 +35,14 @@ do
   rm "shellcheck"
 done
 
+for file in *.linux-aarch64
+do
+  base="${file%.*}"
+  cp "$file" "shellcheck"
+  tar -cJf "$base.linux.aarch64.tar.xz" --transform="s:^:$base/:" README.txt LICENSE.txt shellcheck
+  rm "shellcheck"
+done
+
 for file in *.linux-armv6hf
 do
   base="${file%.*}"

.travis.yml

@@ -17,6 +17,8 @@ script:
   - mkdir deploy
   # Remove all tests to reduce binary size
   - ./striptests
+  # Start fetching the aarch64 image since it's a multi-GB beast
+  - docker pull koalaman/aarch64-builder >> aarch64pull.log 2>&1 &
   # Linux Docker image
   - name="$DOCKER_BASE"
   - DOCKER_BUILDS="$DOCKER_BUILDS $name"
@@ -37,6 +39,11 @@ script:
   - sed -e '/DELETE-MARKER/,$d' Dockerfile > Dockerfile.alpine
   - docker build -f Dockerfile.alpine -t "$name:current" .
   - docker run "$name:current" sh -c 'shellcheck --version'
+  # Linux aarch64 static executable
+  - wait
+  - docker run -v "$PWD:/mnt" koalaman/aarch64-builder 'buildsc'
+  - for tag in $TAGS; do cp "shellcheck" "deploy/shellcheck-$tag.linux-aarch64"; done
+  - rm -f shellcheck || true
   # Linux armv6hf static executable
   - docker run -v "$PWD:/mnt" koalaman/armv6hf-builder -c 'compile-shellcheck'
   - for tag in $TAGS; do cp "shellcheck" "deploy/shellcheck-$tag.linux-armv6hf"; done