Build script does not need gox anymore

scripts/build.sh

@@ -6,19 +6,36 @@ SOURCE="${BASH_SOURCE[0]}"
 while [ -h "$SOURCE" ] ; do SOURCE="$(readlink "$SOURCE")"; done
 cd -P "$( dirname "$SOURCE" )/.."
 
-OSARCH="linux/386 linux/amd64 linux/arm linux/arm64 darwin/386 darwin/amd64 windows/386 windows/amd64 freebsd/386 freebsd/amd64 freebsd/arm openbsd/386 openbsd/amd64 openbsd/arm netbsd/386 netbsd/amd64 netbsd/arm solaris/amd64"
+SUPPORTED_ARCHES=( "linux/386" "linux/amd64" "linux/arm" "linux/arm64"
+                   "darwin/386" "darwin/amd64"
+                   "windows/386" "windows/amd64"
+                   "freebsd/386" "freebsd/amd64" "freebsd/arm"
+                   "openbsd/386" "openbsd/amd64" "openbsd/arm"
+                   "netbsd/386" "netbsd/amd64" "netbsd/arm"
+                   "solaris/amd64"
+                 )
 
-gox -osarch="$OSARCH" \
-    -ldflags="-X github.com/LeSuisse/vault-gpg-plugin/version.GitCommit='$(git rev-parse HEAD)'" \
-    -output="pkg/{{.OS}}_{{.Arch}}/vault-gpg-plugin" \
-    .
+for supported_arch in "${SUPPORTED_ARCHES[@]}"
+do
+    IFS="/" read -r -a os_arch_split <<< "$supported_arch"
+    os="${os_arch_split[0]}"
+    arch="${os_arch_split[1]}"
+    binary_extension=""
+    if [ "$os" == "windows" ]; then
+        binary_extension=".exe"
+    fi
+    echo "Building ${supported_arch}…"
+    GOOS="$os" GOARCH="$arch" go build \
+        -ldflags="-X github.com/LeSuisse/vault-gpg-plugin/version.GitCommit='$(git rev-parse HEAD)'" \
+        -o "pkg/${os}_${arch}/vault-gpg-plugin${binary_extension}"
+done
 
 while IFS= read -r -d '' platform
 do
     osarch=$(basename "$platform")
 
     pushd "$platform" >/dev/null 2>&1
-    sha256sum * > "$osarch".sha256sum
+    sha256sum -- * > "$osarch".sha256sum
     zip ../"$osarch".zip ./*
     popd >/dev/null 2>&1
 done <   <(find ./pkg -mindepth 1 -maxdepth 1 -type d -print0)