cache file exists function doesn't respect url replacements

[viceice]

please support redirect/replace https://dl.google.com/go
in some company intranet，unable to access dl.google.com directly

already supported

As I understand it- the new tools(v2) are downloading Golang from https://github.com/containerbase/ -

base/src/usr/local/containerbase/tools/v2/golang.sh

Line 43 in da910b7

base_url="https://github.com/containerbase/${name}-prebuild/releases/download"

and if it has the chance to hit the get_from_url function, the typescript code will replace the urls, but file_exists

base/src/usr/local/containerbase/tools/v2/golang.sh

Line 46 in da910b7

checksum_exists=$(file_exists "${base_url}/${version}/${name}-${version}-${arch}.tar.xz.sha512")

which comes before it uses curl directly

base/src/usr/local/containerbase/utils/cache.sh

Lines 300 to 302 in da910b7

	function file_exists () {
	curl -sSLIo /dev/null -w "%{http_code}" "${1}"
	}

and will fail the download. Do I need to write a new bug report about this or it could be handled in this bug? And what is the best way to resolve it - for now I just replaced the line with get_from_url and the check with -f on the file

Originally posted by @gergan in #1067