handle missing GOPATH and cygwin considerations

scripts/build.sh

@@ -21,44 +21,33 @@ rm -f bin/*
 rm -rf pkg/*
 mkdir -p bin/
 
+OLDIFS=$IFS
+IFS=:
+case $(uname) in
+    MINGW*|MSYS*)
+        IFS=";"
+        ;;
+esac
+
 # Build!
 echo "==> Building..."
 set +e
-gox \
+${GOX:-$GOPATH/bin/gox} \
     -os="${XC_OS}" \
     -arch="${XC_ARCH}" \
     -osarch="!darwin/arm !darwin/arm64" \
     -ldflags "${GOLDFLAGS}" \
     -output "pkg/{{.OS}}_{{.Arch}}/packer" \
     .
-set -e
 
-# Move all the compiled things to the $GOPATH/bin
-GOPATH=${GOPATH:-$(go env GOPATH)}
-case $(uname) in
-    CYGWIN*)
-        GOPATH="$(cygpath $GOPATH)"
-        ;;
-esac
-OLDIFS=$IFS
-IFS=:
-case $(uname) in
-    MINGW*)
-        IFS=";"
-        ;;
-    MSYS*)
-        IFS=";"
-        ;;
-esac
-MAIN_GOPATH=($GOPATH)
 IFS=$OLDIFS
+set -e
 
 # Copy our OS/Arch to the bin/ directory
 echo "==> Copying binaries for this platform..."
-DEV_PLATFORM="./pkg/$(go env GOOS)_$(go env GOARCH)"
-for F in $(find ${DEV_PLATFORM} -mindepth 1 -maxdepth 1 -type f); do
-    cp ${F} bin/
-    cp ${F} ${MAIN_GOPATH}/bin/
+for F in $(find pkg/$(go env GOOS)_$(go env GOARCH) -mindepth 1 -maxdepth 1 -type f); do
+    cp -v ${F} bin/
+    cp -v ${F} ${GOPATH}/bin/
 done
 
 # Done!