Speed Up list-all/latest (#63)

* Switch to git ls-remote instead of parsing bucket.

* Update README to point to Travis.com

README.md

@@ -1,6 +1,6 @@
 # asdf-golang
 
-[![Build Status](https://travis-ci.org/kennyp/asdf-golang.svg?branch=master)](https://travis-ci.org/kennyp/asdf-golang)
+[![Build Status](https://app.travis-ci.com/kennyp/asdf-golang.svg?branch=master)](https://app.travis-ci.com/kennyp/asdf-golang)
 
 golang plugin for [asdf version manager](https://github.com/asdf-vm/asdf)
 

bin/list-all

@@ -1,67 +1,10 @@
 #!/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 -rd \< ENTITY CONTENT
-    local RET=$?
-    TAG_NAME=${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 [[ $TRUNCATED = 'true' ]] ; then
-    get_versions
-    loop_versions
-  fi
-}
-
-mysed () {
-    if [ "$(uname | tr '[:upper:]' '[:lower:]' | sed -E 's/(darwin|freebsd)/HERE/')" = "HERE" ] ; then
-      sed -Ee "$1"
-    else
-      sed -re "$1"
-    fi
-}
-
-loop_versions
-
-echo "${VERSIONS[@]}" \
-    | tr ' ' '\n' \
-    | grep '.tar.gz' \
-    | grep '\(linux\|darwin\|freebsd\)' \
-    | grep '\-\(amd64\|386\|armv6l\|armv7l\|arm64\)\.' \
-    | mysed 's/^go([^.]*).([^.]*).([^.]*).*/\1.\2.\3/' \
-    | mysed 's/.(linux|darwin|freebsd|src).*$//' \
-    | uniq \
-    | sort -t. -k 1,1 -k 2,2n -k 3,3n -k 4,4n -k 5,5n \
-    | tr '\n' ' '
+git ls-remote --tags https://github.com/golang/go "go*" \
+  | awk -F/go '{ print $2 }' \
+  | uniq \
+  | sort -t. -k 1,1 -k 2,2n -k 3,3n -k 4,4n -k 5,5n \
+  | grep -v '^1\($\|\.0\|\.0\.[0-9]\|\.1\|\.1rc[0-9]\|\.1\.[0-9]\|.2\|\.2rc[0-9]\|\.2\.1\|.8.5rc5\)$' \
+  | tr '\n' ' '