release: gz doesn't preserve permissions use tar.gz

And fix various other issues with release script.

Makefile

@@ -73,7 +73,7 @@ getdeps: checks
 	@go get -u github.com/remyoudompheng/go-misc/deadcode && echo "Installed deadcode:"
 	@go get -u github.com/client9/misspell/cmd/misspell && echo "Installed misspell:"
 
-verifiers: getdeps vet fmt lint cyclo spelling
+verifiers: vet fmt lint cyclo spelling
 
 vet:
 	@echo "Running $@:"
@@ -137,7 +137,7 @@ pkg-list:
 
 install: gomake-all
 
-dockerimage: checkdocker verifiers $(UI_ASSETS)
+dockerimage: checkdocker getdeps verifiers $(UI_ASSETS)
 	@echo "Building docker image:" minio:$(TAG)
 	@GO15VENDOREXPERIMENT=1 GOOS=linux GOARCH=amd64 go build --ldflags $(DOCKER_LDFLAGS) -o docker/minio.dockerimage
 	@cd docker; mkdir -p export; sudo docker build --rm --tag=minio/minio:$(TAG) .

buildscripts/build.sh

@@ -26,10 +26,12 @@ _init() {
     SUPPORTED_OSARCH='linux/386 linux/amd64 linux/arm windows/386 windows/amd64 darwin/amd64'
 
     ## System binaries
-    CP="/bin/cp"
+    CP=`which cp`
-    SHASUM="/usr/bin/shasum"
+    SHASUM=`which shasum`
-    GZIP="/usr/bin/gzip"
+    GZIP=`which gzip`
-    ZIP="/usr/bin/zip"
+    ZIP=`which zip`
+    SED=`which sed`
+    TAR=`which tar`
 }
 
 go_build() {
@@ -47,25 +49,36 @@ go_build() {
     # Release shasum name
     release_shasum="$release_str/$os-$arch/$(basename $package).shasum"
     # Release zip file.
-    release_real_zip="$release_str/$os-$arch/$(basename $package).zip"
+    release_real_zip="$(basename $package).zip"
-    release_real_gz="$release_str/$os-$arch/$(basename $package).gz"
+    release_real_tgz="$(basename $package).tgz"
 
     # Go build to build the binary.
     GOOS=$os GOARCH=$arch go build --ldflags "${LDFLAGS}" -o $release_bin
 
     # Create copy
-    $CP -p $release_bin $release_real_bin
+    if [ $os == "windows" ]; then
+        $CP -p $release_bin ${release_real_bin}.exe
+    else
+        $CP -p $release_bin $release_real_bin
+    fi
 
     # Calculate shasum
-    $SHASUM $release_bin > $release_shasum
+    shasum_str=$(${SHASUM} ${release_bin})
+    echo ${shasum_str} | $SED "s/$release_str\/$os-$arch\///g" > $release_shasum
 
     # Create a compressed file.
     if [ $os == "windows" ]; then
-        $ZIP -r $release_real_zip $release_real_bin
+        cd "$release_str/$os-$arch"
+        $ZIP -r $release_real_zip $(basename $package).exe
+        cd -
     elif [ $os == "darwin" ]; then
-        $ZIP -r $release_real_zip $release_real_bin
+        cd "$release_str/$os-$arch"
+        $ZIP -r $release_real_zip $(basename $package)
+        cd -
     elif [ $os == "linux" ]; then
-        $GZIP -c $release_real_bin > $release_real_gz
+        cd "$release_str/$os-$arch"
+        $TAR -czf $release_real_tgz $(basename $package)
+        cd -
     else
         echo "$os operating system is not supported."
         exit 1

update-main.go

@@ -148,7 +148,7 @@ func getReleaseUpdate(updateURL string, noError bool) updateMessage {
 		downloadURL = newUpdateURLPrefix + "/minio.zip"
 	default:
 		// For all other operating systems.
-		downloadURL = newUpdateURLPrefix + "/minio.gz"
+		downloadURL = newUpdateURLPrefix + "/minio.tgz"
 	}
 
 	// Initialize update message.