Update source.sh script

source.sh

@@ -6,10 +6,13 @@
 # This function is used to compile the source code
 build() {
   cd src
+
+  # Set variables for compilation
   export GOOS=linux
   export GOARCH=amd64
   export GOROOT_FINAL=/usr/lib/go
-  export GOROOT_BOOTSTRAP=/usr/lib/go
+  [ -z "$GOROOT_BOOTSTRAP" ] && export GOROOT_BOOTSTRAP=/usr/lib/go
+  
   ./make.bash -v
 }
 
@@ -17,6 +20,7 @@ build() {
 # This function is used to run tests to verify the package has been compiled correctly
 check() {
   cd src
+  
   export GO_TEST_TIMEOUT_SCALE=3
   ./run.bash --no-rebuild -v -v -v -k -run "!cmd/cgo/internal/testsanitizers"
 }
@@ -24,22 +28,26 @@ check() {
 # The package function is executed in the source directory
 # This function is used to move the compiled files into the output directory
 package() {
-  install -d "${BPM_OUTPUT}/usr/bin" "${BPM_OUTPUT}/usr/lib/go" "${BPM_OUTPUT}/usr/share/doc/go" \
-    "${BPM_OUTPUT}/usr/lib/go/pkg/linux_amd64_"{dynlink,race}
+  install -d "$BPM_OUTPUT"/usr/bin \
+             "$BPM_OUTPUT"/usr/lib/go \
+             "$BPM_OUTPUT"/usr/share/doc/go \
+             "$BPM_OUTPUT"/usr/lib/go/pkg/linux_amd64_{dynlink,race}
 
   cp -a bin pkg src lib misc api test "${BPM_OUTPUT}/usr/lib/go"
-  cp -r doc/* "${BPM_OUTPUT}/usr/share/doc/go"
+  install -Dm644 go.env "$BPM_OUTPUT"/usr/lib/go/go.env
+  install -Dm644 VERSION "$BPM_OUTPUT"/usr/lib/go/VERSION
 
-  ln -sf /usr/lib/go/bin/go "${BPM_OUTPUT}/usr/bin/go"
-  ln -sf /usr/lib/go/bin/gofmt "${BPM_OUTPUT}/usr/bin/gofmt"
-  ln -sf /usr/share/doc/go "${BPM_OUTPUT}/usr/lib/go/doc"
+  # Symlink go binaries to usr/bin
+  ln -sf /usr/lib/go/bin/go "$BPM_OUTPUT"/usr/bin/go
+  ln -sf /usr/lib/go/bin/gofmt "$BPM_OUTPUT"/usr/bin/gofmt
 
-  install -Dm644 VERSION "${BPM_OUTPUT}/usr/lib/go/VERSION"
+  # Install documentation
+  cp -r doc/* "$BPM_OUTPUT"/usr/share/doc/go
+  ln -sf /usr/share/doc/go "$BPM_OUTPUT"/usr/lib/go/doc
 
-  rm -rf "${BPM_OUTPUT}/usr/lib/go/pkg/bootstrap" "${BPM_OUTPUT}/usr/lib/go/pkg/tool/*/api"
-
-  install -Dm644 go.env "${BPM_OUTPUT}/usr/lib/go/go.env"
-
-  install -Dm644 LICENSE "${BPM_OUTPUT}/usr/share/licenses/go/LICENSE"
+  # Remove unwanted directory
+  rm -rf "$BPM_OUTPUT"/usr/lib/go/pkg/bootstrap "$BPM_OUTPUT"/usr/lib/go/pkg/tool/*/api
 
+  # Install package license
+  install -Dm644 "$BPM_SOURCE"/LICENSE "$BPM_OUTPUT"/usr/share/licenses/golang/LICENSE
 }