Use return codes from poetry_venv to disabiguate causes of returns. (#22

)

* resolve annoying message when pyproject= isn't set in mise.toml

* disambiguate "failures" of poetry_venv

* remove redundant check on VIRTUAL_ENV

* replace exit code 2 with 1

bin/exec-env

@@ -11,8 +11,16 @@ setup_virtualenv() {
     return
   fi
 
+  set +e
   VIRTUAL_ENV="$(poetry_venv)"
-  if [[ -z "$VIRTUAL_ENV" ]] || [[ ! -d "$VIRTUAL_ENV" ]]; then
+  poetry_venv_exit_code=$?
+  set -e
+
+  if [[ $poetry_venv_exit_code -eq 1 ]]; then
+    return
+  fi
+
+  if [[ ! -d "$VIRTUAL_ENV" ]]; then
     if [[ "${MISE_POETRY_AUTO_INSTALL:-}" != "true" ]] && [[ "${MISE_POETRY_AUTO_INSTALL:-}" != "1" ]]; then
       echoerr "mise-poetry: Virtualenv does not exist at $VIRTUAL_ENV. Execute \`poetry install\` to create one."
       return

bin/utils.sh

@@ -16,14 +16,14 @@ poetry_venv() {
   local pyproject
   pyproject="$(eval "echo ${MISE_TOOL_OPTS__PYPROJECT-}")"
   if [ "$pyproject" = "" ]; then
-    return
+    return 1
   fi
   if [[ $pyproject != /* ]] && [[ -n ${MISE_PROJECT_ROOT-} ]]; then
     pyproject="${MISE_PROJECT_ROOT-}/$pyproject"
   fi
   if [[ ! -f $pyproject ]]; then
     echoerr "mise-poetry: No pyproject.toml found. Execute \`poetry init\` to create \`$pyproject\` first."
-    return
+    return 1
   fi
   poetry_bin -C "${pyproject%/*}" env info --path 2>/dev/null
   true