Check the usage of virtualenv(s) before the uninstallation of versions

README.md

@@ -131,11 +131,6 @@ You can set certain environment variables to control the pyenv-virtualenv.
 
 ## Version History
 
-#### 20140602
-
- * Use new style GH raw url to avoid redirects (raw.github.com -> raw.githubusercontent.com)
- * Repaired virtualenv activation and deactivation for the fish shell (#23)
-
 #### 20140421
 
  * Display error if `pyenv activate` was invoked as a command

bin/pyenv-sh-activate

@@ -41,7 +41,7 @@ fi
 
 pyenv-virtualenv-prefix "${versions}" 1>/dev/null
 
-echo "pyenv shell \"${versions}\";"
+echo "pyenv shell \"${versions}\""
 case "$shell" in
 fish ) echo ". \"$(pyenv-prefix "${versions}")/bin/activate.fish\"" ;;
 *    ) echo "source \"$(pyenv-prefix "${versions}")/bin/activate\"" ;;

bin/pyenv-sh-deactivate

@@ -11,7 +11,7 @@ set -e
 
 shell="$(basename "${PYENV_SHELL:-$SHELL}")"
 case "$shell" in
-fish ) echo "functions -q deactivate; and deactivate;";;
-*    ) echo "declare -f deactivate 1>/dev/null 2>&1 && deactivate;";;
+fish ) echo "functions -q deactivate; and deactivate";;
+*    ) echo "declare -f deactivate 1>/dev/null 2>&1 && deactivate";;
 esac
 echo "pyenv shell --unset"

bin/pyenv-virtualenv

@@ -11,7 +11,7 @@
 #   -f/--force       Install even if the version appears to be installed already
 #
 
-PYENV_VIRTUALENV_VERSION="20140602"
+PYENV_VIRTUALENV_VERSION="20140421"
 
 set -e
 [ -n "$PYENV_DEBUG" ] && set -x
@@ -181,9 +181,9 @@ install_pip() {
     else
       [ -n "${GET_PIP_URL}" ] || {
         if [ -n "${PIP_VERSION}" ]; then
-          GET_PIP_URL="https://raw.githubusercontent.com/pypa/pip/${PIP_VERSION}/contrib/get-pip.py"
+          GET_PIP_URL="https://raw.github.com/pypa/pip/${PIP_VERSION}/contrib/get-pip.py"
         else
-          GET_PIP_URL="https://raw.githubusercontent.com/pypa/pip/master/contrib/get-pip.py"
+          GET_PIP_URL="https://raw.github.com/pypa/pip/master/contrib/get-pip.py"
         fi
       }
       if [ -n "$VERBOSE" ]; then

etc/pyenv.d/uninstall/virtualenv.bash

@@ -0,0 +1,25 @@
+VERSION_NAME="${DEFINITION##*/}"
+PREFIX="${PYENV_ROOT}/versions/${VERSION_NAME}"
+
+if ! pyenv-virtualenv-prefix "${VERSION_NAME}" 1>/dev/null 2>&1; then
+  OLDIFS="$IFS"
+  IFS=$'\n' virtualenvs=($(pyenv-virtualenvs --bare))
+  IFS="$OLDIFS"
+
+  declare -a dependencies
+  for venv in "${virtualenvs[@]}"; do
+    venv_prefix="$(pyenv-virtualenv-prefix "${venv}" 2>/dev/null || true)"
+    if [ -d "${venv_prefix}" ] && [ "${PREFIX}" = "${venv_prefix}" ]; then
+      dependencies[${#dependencies[*]}]="${venv}"
+    fi
+  done
+
+  if [ -z "$FORCE" ] && [ -n "$dependencies" ]; then
+    echo "pyenv: ${#dependencies[@]} virtualenv(s) is depending on $PREFIX." >&2
+    read -p "continue with uninstallation? (y/N) "
+    case "$REPLY" in
+    y* | Y* ) ;;
+    * ) exit 1 ;;
+    esac
+  fi
+fi

install.sh

@@ -12,7 +12,10 @@ if [ -z "${PREFIX}" ]; then
 fi
 
 BIN_PATH="${PREFIX}/bin"
+ETC_PATH="${PREFIX}/etc/pyenv.d"
 
 mkdir -p "$BIN_PATH"
+mkdir -p "$ETC_PATH"
 
 install -p bin/* "$BIN_PATH"
+cp -RPp etc/pyenv.d/* "$ETC_PATH"

test/activate.bats

@@ -19,7 +19,7 @@ setup() {
 
   assert_success
   assert_output <<EOS
-pyenv shell "venv";
+pyenv shell "venv"
 source "${PYENV_ROOT}/versions/venv/bin/activate"
 EOS
 }
@@ -37,7 +37,7 @@ EOS
 
   assert_success
   assert_output <<EOS
-pyenv shell "venv";
+pyenv shell "venv"
 . "${PYENV_ROOT}/versions/venv/bin/activate.fish"
 EOS
 }
@@ -53,7 +53,7 @@ EOS
 
   assert_success
   assert_output <<EOS
-pyenv shell "venv27";
+pyenv shell "venv27"
 source "${PYENV_ROOT}/versions/venv27/bin/activate"
 EOS
 }

test/deactivate.bats

@@ -11,7 +11,7 @@ setup() {
 
   assert_success
   assert_output <<EOS
-declare -f deactivate 1>/dev/null 2>&1 && deactivate;
+declare -f deactivate 1>/dev/null 2>&1 && deactivate
 pyenv shell --unset
 EOS
 }
@@ -21,7 +21,7 @@ EOS
 
   assert_success
   assert_output <<EOS
-functions -q deactivate; and deactivate;
+functions -q deactivate; and deactivate
 pyenv shell --unset
 EOS
 }

test/version.bats

@@ -4,7 +4,7 @@ load test_helper
 
 setup() {
   export PYENV_ROOT="${TMP}/pyenv"
-  export PYENV_VIRTUALENV_VERSION="20140602"
+  export PYENV_VIRTUALENV_VERSION="20140421"
 }
 
 @test "display virtualenv version" {