make list-all script non-dependent on python to avoid library/versioning issues

Author: fernandofig

bin/check-python

@@ -10,32 +10,32 @@ PYTHON_MINIMUM_MINOR=4
 PYTHON3_REF=$(which python3 | grep "/python3")
 PYTHON_REF=$(which python | grep "/python")
 
-error_msg(){
-    echo "NoPython"
+error_msg() {
+	echo "NoPython"
 }
 
-python_ref(){
-    local my_ref=$1
-    echo $($my_ref -c 'import platform; major, minor, patch = platform.python_version_tuple(); print(major); print(minor);')
+python_ref() {
+	local my_ref=$1
+	echo $($my_ref -c 'import platform; major, minor, patch = platform.python_version_tuple(); print(major); print(minor);')
 }
 
 # Print success_msg/error_msg according to the provided minimum required versions
-check_version(){
-    local major=$1
-    local minor=$2
-    local python_ref=$3
-    [[ $major -ge $PYTHON_MINIMUM_MAJOR && $minor -ge $PYTHON_MINIMUM_MINOR ]] && echo $python_ref || error_msg
+check_version() {
+	local major=$1
+	local minor=$2
+	local python_ref=$3
+	[[ $major -ge $PYTHON_MINIMUM_MAJOR && $minor -ge $PYTHON_MINIMUM_MINOR ]] && echo $python_ref || error_msg
 }
 
 # Logic
 if [[ ! -z $PYTHON3_REF ]]; then
-    version=($(python_ref python3))
-    check_version ${version[0]} ${version[1]} $PYTHON3_REF
+	version=($(python_ref python3))
+	check_version ${version[0]} ${version[1]} $PYTHON3_REF
 elif [[ ! -z $PYTHON_REF ]]; then
-    # Didn't find python3, let's try python
-    version=($(python_ref python))
-    check_version ${version[0]} ${version[1]} $PYTHON_REF
+	# Didn't find python3, let's try python
+	version=($(python_ref python))
+	check_version ${version[0]} ${version[1]} $PYTHON_REF
 else
-    # Python is not installed at all
-    error_msg
+	# Python is not installed at all
+	error_msg
 fi

bin/install

@@ -6,8 +6,8 @@ __dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 
 PYTHON_REF=$(source ${__dir}/check-python)
 if [[ "$PYTHON_REF" == "NoPython" ]]; then
-    echo "Python3.4+ is not installed."
-    exit
+	echo "Python3.4+ is not installed."
+	exit
 fi
 
 # create and activate virtual environment
@@ -24,12 +24,12 @@ mkdir $ASDF_INSTALL_PATH/asdf_bin
 declare -a executables=("pipenv" "pipenv-resolver")
 for filename in "${executables[@]}"
 do
-  cat <<EOT >> $ASDF_INSTALL_PATH/asdf_bin/$filename
+	cat <<EOT >> $ASDF_INSTALL_PATH/asdf_bin/$filename
 #!/usr/bin/env bash
 
 source $ASDF_INSTALL_PATH/bin/activate
 PIPENV_IGNORE_VIRTUALENVS=1 $filename "\$@"
 EOT
 
-  chmod a+x $ASDF_INSTALL_PATH/asdf_bin/$filename
+	chmod a+x $ASDF_INSTALL_PATH/asdf_bin/$filename
 done

bin/list-all

@@ -5,6 +5,11 @@ set -eu
 cmd="curl --silent --location"
 releases_path="https://pypi.org/pypi/pipenv/json"
 
-versions=$(eval "$cmd $releases_path" | exec python -c "import sys, json, pkg_resources; releases = json.load(sys.stdin)['releases']; print(' '.join(sorted(releases, key=pkg_resources.parse_version)))")
+versions=$($cmd "$releases_path" |
+  sed -E 's/.*"releases":\{(.*?)\},"urls".*/\1/' |
+  grep -oE '"[^"]+":\[' |
+  sed -E 's/^"([^"]+)":\[/\1/' |
+  sort -V
+)
 
 echo "$versions"