asdf-golang/bin/list-all
2018-01-22 10:43:32 -05:00

60 lines
1.4 KiB
Bash
Executable File

#!/usr/bin/env bash
set -eu
[ "${BASH_VERSINFO[0]}" -ge 3 ] && set -o pipefail
IFS=$'\n\t'
# This method is not stable, according to https://github.com/golang/go/issues/21667#issuecomment-325457742
BASE_URL='https://storage.googleapis.com/golang?marker='
NEXT_MARKER=''
TRUNCATED='true'
# Shamelessly stolen from: https://stackoverflow.com/questions/893585/how-to-parse-xml-in-bash {
function read_dom() {
local IFS=\>
read -d \< ENTITY CONTENT
local RET=$?
TAG_NAME=${ENTITY%% *}
ATTRIBUTES=${ENTITY#* }
return $RET
}
function parse_dom() {
if [[ $TAG_NAME = "IsTruncated" ]] ; then
#echo "Is this page truncated: $CONTENT"
TRUNCATED=$CONTENT
elif [[ $TAG_NAME = "NextMarker" ]] ; then
#echo "What is the next marker: $CONTENT"
NEXT_MARKER=$CONTENT
elif [[ $TAG_NAME = "Key" ]] ; then
VERSIONS+=("${CONTENT}")
fi
}
function get_versions() {
XML=$(curl --silent ${BASE_URL}${NEXT_MARKER})
while read_dom; do
parse_dom
done <<< $XML
}
# }
function loop_versions() {
if [[ $TRUNCATED = 'true' ]] ; then
get_versions
loop_versions
fi
}
loop_versions
echo ${VERSIONS[@]} \
| tr ' ' '\n' \
| grep '.tar.gz' \
| grep '\(linux\|darwin\|freebsd\)' \
| grep '\-\(amd64\|386\)\.' \
| sed -e 's/^go\([^.]*\).\([^.]*\).\([^.]*\).*/\1.\2.\3/' \
| sed -e 's/.\(linux\|darwin\|freebsd\|src\).*$//' \
| uniq \
| tr '\n' ' '