Restore variables set by activate script of virtualenv properly (#150)

The `activate` script does't export the variables of `_OLD_VIRTUAL_*`,
most the deactivation code needed to be moved to `sh-deactivate`.

bin/pyenv-sh-deactivate

@@ -98,33 +98,71 @@ if [ -n "${CONDA_DEFAULT_ENV}" ]; then
   esac
 fi
 
-if [ -n "${_OLD_VIRTUAL_PYTHONHOME}" ]; then
 case "${shell}" in
 fish )
   cat <<EOS
-setenv PYTHONHOME "${_OLD_VIRTUAL_PYTHONHOME}";
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
-set -e _OLD_VIRTUAL_PYTHONHOME;
+  setenv PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
 EOS
   ;;
 * )
   cat <<EOS
-export PYTHONHOME="${_OLD_VIRTUAL_PYTHONHOME}";
+if [ -n "\${_OLD_VIRTUAL_PATH}" ]; then
-unset _OLD_VIRTUAL_PYTHONHOME;
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+EOS
+  ;;
+esac
+
+case "${shell}" in
+fish )
+  cat <<EOS
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  setenv PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+EOS
+  ;;
+* )
+  cat <<EOS
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
 EOS
   ;;
 esac
-fi
 
 case "${shell}" in
 fish )
   :
   ;;
 * )
-  if [ -n "${_OLD_VIRTUAL_PS1}" ]; then
   cat <<EOS
-export PS1='${_OLD_VIRTUAL_PS1}';
+if [ -n "\${_OLD_VIRTUAL_PS1}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
   unset _OLD_VIRTUAL_PS1;
+fi;
+EOS
+  ;;
+esac
+
+case "${shell}" in
+fish )
+  cat <<EOS
+if functions -g deactivate;
+  functions -e deactivate;
+end;
+EOS
+  ;;
+* )
+  cat <<EOS
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
 EOS
-  fi
   ;;
 esac

test/activate.bats

@@ -263,13 +263,15 @@ EOS
   export VIRTUAL_ENV="${PYENV_ROOT}/versions/venv"
   export PYENV_ACTIVATE_SHELL=
 
+  stub pyenv-sh-deactivate "echo deactivated"
+
   run pyenv-sh-activate --unset
 
+  unstub pyenv-sh-deactivate
+
   assert_success
   assert_output <<EOS
-pyenv-virtualenv: deactivate venv
+deactivated
-export PYENV_DEACTIVATE="${PYENV_ROOT}/versions/venv";
-unset VIRTUAL_ENV;
 EOS
 }
 

test/conda-deactivate.bats

@@ -32,6 +32,21 @@ pyenv-virtualenv: deactivate anaconda-2.3.0
 export PYENV_DEACTIVATE="${PYENV_ROOT}/versions/anaconda-2.3.0";
 unset VIRTUAL_ENV;
 unset CONDA_DEFAULT_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
 EOS
 }
 
@@ -51,6 +66,17 @@ pyenv-virtualenv: deactivate anaconda-2.3.0
 setenv PYENV_DEACTIVATE "${PYENV_ROOT}/versions/anaconda-2.3.0";
 set -e VIRTUAL_ENV;
 set -e CONDA_DEFAULT_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  setenv PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  setenv PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+if functions -g deactivate;
+  functions -e deactivate;
+end;
 EOS
 }
 
@@ -70,5 +96,20 @@ pyenv-virtualenv: deactivate anaconda-2.3.0/envs/foo
 export PYENV_DEACTIVATE="${PYENV_ROOT}/versions/anaconda-2.3.0/envs/foo";
 unset VIRTUAL_ENV;
 unset CONDA_DEFAULT_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
 EOS
 }

test/deactivate.bats

@@ -28,6 +28,21 @@ setup() {
 pyenv-virtualenv: deactivate venv
 export PYENV_DEACTIVATE="${PYENV_ROOT}/versions/venv";
 unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
 EOS
 }
 
@@ -42,6 +57,21 @@ EOS
 pyenv-virtualenv: deactivate venv
 export PYENV_DEACTIVATE="${PYENV_ROOT}/versions/venv";
 unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
 EOS
 }
 
@@ -56,6 +86,21 @@ EOS
 pyenv-virtualenv: deactivate venv
 export PYENV_DEACTIVATE="${PYENV_ROOT}/versions/venv";
 unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
 EOS
 }
 
@@ -72,6 +117,21 @@ unset PYENV_VERSION;
 unset PYENV_ACTIVATE_SHELL;
 export PYENV_DEACTIVATE="${PYENV_ROOT}/versions/venv";
 unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
 EOS
 }
 
@@ -88,6 +148,21 @@ unset PYENV_VERSION;
 unset PYENV_ACTIVATE_SHELL;
 export PYENV_DEACTIVATE="${PYENV_ROOT}/versions/venv";
 unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
 EOS
 }
 
@@ -102,6 +177,21 @@ EOS
 pyenv-virtualenv: deactivate venv
 export PYENV_DEACTIVATE="${PYENV_ROOT}/versions/venv";
 unset VIRTUAL_ENV;
+if [ -n "\${_OLD_VIRTUAL_PATH}" ]; then
+  export PATH="\${_OLD_VIRTUAL_PATH}";
+  unset _OLD_VIRTUAL_PATH;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PYTHONHOME}" ]; then
+  export PYTHONHOME="\${_OLD_VIRTUAL_PYTHONHOME}";
+  unset _OLD_VIRTUAL_PYTHONHOME;
+fi;
+if [ -n "\${_OLD_VIRTUAL_PS1}" ]; then
+  export PS1="\${_OLD_VIRTUAL_PS1}";
+  unset _OLD_VIRTUAL_PS1;
+fi;
+if declare -f deactivate 1>/dev/null 2>&1; then
+  unset -f deactivate;
+fi;
 EOS
 }
 
@@ -116,6 +206,17 @@ EOS
 pyenv-virtualenv: deactivate venv
 setenv PYENV_DEACTIVATE "${PYENV_ROOT}/versions/venv";
 set -e VIRTUAL_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  setenv PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  setenv PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+if functions -g deactivate;
+  functions -e deactivate;
+end;
 EOS
 }
 
@@ -130,6 +231,17 @@ EOS
 pyenv-virtualenv: deactivate venv
 setenv PYENV_DEACTIVATE "${PYENV_ROOT}/versions/venv";
 set -e VIRTUAL_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  setenv PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  setenv PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+if functions -g deactivate;
+  functions -e deactivate;
+end;
 EOS
 }
 
@@ -146,6 +258,17 @@ set -e PYENV_VERSION;
 set -e PYENV_ACTIVATE_SHELL;
 setenv PYENV_DEACTIVATE "${PYENV_ROOT}/versions/venv";
 set -e VIRTUAL_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  setenv PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  setenv PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+if functions -g deactivate;
+  functions -e deactivate;
+end;
 EOS
 }
 
@@ -162,6 +285,17 @@ set -e PYENV_VERSION;
 set -e PYENV_ACTIVATE_SHELL;
 setenv PYENV_DEACTIVATE "${PYENV_ROOT}/versions/venv";
 set -e VIRTUAL_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  setenv PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  setenv PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+if functions -g deactivate;
+  functions -e deactivate;
+end;
 EOS
 }
 
@@ -176,6 +310,17 @@ EOS
 pyenv-virtualenv: deactivate venv
 setenv PYENV_DEACTIVATE "${PYENV_ROOT}/versions/venv";
 set -e VIRTUAL_ENV;
+if [ -n "\$_OLD_VIRTUAL_PATH" ];
+  setenv PATH "\$_OLD_VIRTUAL_PATH";
+  set -e _OLD_VIRTUAL_PATH;
+end;
+if [ -n "\$_OLD_VIRTUAL_PYTHONHOME" ];
+  setenv PYTHONHOME "\$_OLD_VIRTUAL_PYTHONHOME";
+  set -e _OLD_VIRTUAL_PYTHONHOME;
+end;
+if functions -g deactivate;
+  functions -e deactivate;
+end;
 EOS
 }