pixiw

#!/bin/sh

set -euf
[ "${DEBUG-}" != true ] || set -x

# requires at least pixi 0.44.0
# environment parameters:
#   PIXI_INSTALLER_URL - custom pixi installer
#   URL_MIRROR_github_com - custom mirror for github.com
# run directly if already under pixi environment
[ -z "${PIXI_EXE-}" ] || exec "${PIXI_EXE-}" "$@"

__check_pixi() {
  __pixi="${1-}"
  command -v -- "${__pixi-}" >/dev/null || return 1 # check runnable

  if "$__pixi" workspace requires-pixi verify 2>/dev/null; then
    return 0
  else
    case $? in
    # 2: less than 0.44.0
    # 4: verify fail
    2 | 4) return 1 ;;
    *) exit $? ;; # unknown error
    esac
  fi
}

__download_to_stdin() {
  if hash wget 2>/dev/null; then
    wget -qO- "$1"
  elif hash curl 2>/dev/null; then
    curl -sfSL --compressed "$1"
  else
    echo echo "\"[ERROR] you need either 'curl' or 'wget' installed.\" >&2"
    echo exit 1
  fi
}

__install_pixi() (
  # require curl, posix sh and sed commands
  if [ -n "${URL_MIRROR_github_com-}" ] && ! hash sed 2>/dev/null; then
    echo "[WARN] you do not have 'sed' installed to use URL_MIRROR_github_com, ignore the mirror." >&2
    unset URL_MIRROR_github_com
  fi

  : "${PIXI_INSTALLER_URL:=https://raw.githubusercontent.com/prefix-dev/pixi/main/install/install.sh}"
  if [ -n "${URL_MIRROR_github_com-}" ]; then
    __download_to_stdin "${PIXI_INSTALLER_URL-}" | sed "s|https://github.com/|$URL_MIRROR_github_com|g"
  else
    __download_to_stdin "${PIXI_INSTALLER_URL-}"
  fi | PIXI_VERSION='' PIXI_HOME='' PIXI_NO_PATH_UPDATE=true /bin/sh -s
)

pixi_prj_rc="${0%/*}/.pixi/rc.sh"

# shellcheck source=/dev/null
[ ! -r "$pixi_prj_rc" ] || PIXIW_INSTALL=1 PIXI_PROJECT_ROOT="${0%/*}" . "$pixi_prj_rc"

# search pixi from $PATH
! __check_pixi pixi || exec pixi "$@"

if ! __check_pixi "${HOME:-}/.pixi/bin/pixi"; then
  if __install_pixi; then
    if ! __check_pixi "${HOME:-}/.pixi/bin/pixi"; then
      echo "[ERROR] After install/update, pixi version still does not meet the requirement $("${HOME:-}/.pixi/bin/pixi" workspace requires-pixi get)." >&2
      exit 1
    fi
  else
    echo "[ERROR] Fail to install/update pixi" >&2
    exit 1
  fi
fi

exec "${HOME:-}/.pixi/bin/pixi" "$@"