asdf-python/shims/pip
Matan Rosenberg 9fe9fd7cd4 Add pip shim
2022-05-02 16:49:16 +03:00

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#! /usr/bin/env bash
#
# This script wraps pip to run `asdf reshim` after installs and uninstalls.
# Any other cases are passed-through to pip.
#
# Based on the npm shim: https://github.com/asdf-vm/asdf-nodejs/blob/b2d06a768d9a14186db72018df10604bdb384436/shims/npm
set -euo pipefail
this_dir=$(dirname "${BASH_SOURCE[0]}")
this_dir=$(cd "$this_dir" && pwd -P) # Normalizes the directory; see https://stackoverflow.com/a/7666/2308068
plugin_name=$(basename "$(dirname "$this_dir")")
asdf_data_dir=$(cd "${ASDF_DATA_DIR:-$HOME/.asdf}" && pwd -P)
asdf_shims_dir="$asdf_data_dir/shims"
plugin_dir="$asdf_data_dir/plugins/$plugin_name"
should_reshim() {
if [ "${ASDF_PYTHON_SKIP_RESHIM:-}" ]; then
return 1
fi
for arg; do
case "$arg" in
install|uninstall)
return 0
;;
esac
done
return 1
}
resolve_pip() {
# Try searching in current path (asdf core from 0.7 onwards adds all binaries candidates directories to PATH)
# if that doesn't works (when calling the shim directly for example) it tries manually searching the binary in
# the installed version provided by "asdf where"
local pip_location="${ASDF_NODEJS_CANON_PIP_PATH:-$(search_pip_on_current_path || manually_search_pip_bin)}"
if ! [ "$pip_location" ]; then
echo "asdf-python couldn't find a suitable pip executable"
echo "This is probably a problem with the plugin, please report this issue"
exit 1
fi
echo "$pip_location"
}
remove_current_dir_from_path() {
local filtered_path= dir= normalized_dir=
while read -rd : dir; do
if [ -d "$dir" ]; then
normalized_dir=$(cd "$dir" && pwd -P)
if [ "$normalized_dir" = "$this_dir" ] || [ "$normalized_dir" = "$asdf_shims_dir" ]; then
continue
fi
fi
filtered_path+="$dir:"
done <<< "$PATH:"
echo "${filtered_path%:}"
}
search_pip_on_current_path() {
# Tries to prevent recursion by removing the current script and asdf-shim from PATH
local filtered_path=$(remove_current_dir_from_path)
PATH="$filtered_path" command -v pip
}
manually_search_pip_bin() {
local probably_pip="$(asdf where python)/bin/pip"
if [ -x "$probably_pip" ]; then
echo "$probably_pip"
return 0
fi
return 1
}
wrap_pip() {
local pip=$(resolve_pip)
if should_reshim "$@"; then
"$pip" "$@"
echo "Reshimming asdf $plugin_name..."
asdf reshim "$plugin_name"
else
exec "$pip" "$@"
fi
}
wrap_pip "$@"