Allow multiple versions for pyenv-install

plugins/python-build/bin/pyenv-install

@@ -2,7 +2,7 @@
 #
 # Summary: Install a Python version using python-build
 #
-# Usage: pyenv install [-f] [-kvp] <version>
+# Usage: pyenv install [-f] [-kvp] <version>...
 #        pyenv install [-f] [-kvp] <definition-file>
 #        pyenv install -l|--list
 #        pyenv install --version
@@ -113,17 +113,15 @@ for option in "${OPTIONS[@]}"; do
   esac
 done
 
-[ "${#ARGUMENTS[@]}" -le 1 ] || usage 1 >&2
-
 unset VERSION_NAME
 
 # The first argument contains the definition to install. If the
 # argument is missing, try to install whatever local app-specific
 # version is specified by pyenv. Show usage instructions if a local
 # version is not specified.
-DEFINITION="${ARGUMENTS[0]}"
-[ -n "$DEFINITION" ] || DEFINITION="$(pyenv-local 2>/dev/null || true)"
-[ -n "$DEFINITION" ] || usage 1 >&2
+DEFINITIONS=("${ARGUMENTS[@]}")
+[ -n "${DEFINITIONS[*]}" ] || DEFINITIONS=($(pyenv-local 2>/dev/null || true))
+[ -n "${DEFINITIONS[*]}" ] || usage 1 >&2
 
 # Define `before_install` and `after_install` functions that allow
 # plugin hooks to register a string of code for execution before or
@@ -140,19 +138,27 @@ after_install() {
   after_hooks["${#after_hooks[@]}"]="$hook"
 }
 
+# Plan cleanup on unsuccessful installation.
+cleanup() {
+  [ -z "${PREFIX_EXISTS}" ] && rm -rf "$PREFIX"
+}
+
+trap cleanup SIGINT
+
+
 OLDIFS="$IFS"
 IFS=$'\n' scripts=(`pyenv-hooks install`)
 IFS="$OLDIFS"
 for script in "${scripts[@]}"; do source "$script"; done
 
+for DEFINITION in "${DEFINITIONS[@]}";do
   # Try to resolve a prefix if user indeed gave a prefix.
   # We install the version under the resolved name
   # and hooks also see the resolved name
   DEFINITION="$(pyenv-latest -q -k "$DEFINITION" || echo "$DEFINITION")"
 
-# Set VERSION_NAME from $DEFINITION, if it is not already set. Then
-# compute the installation prefix.
-[ -n "$VERSION_NAME" ] || VERSION_NAME="${DEFINITION##*/}"
+  # Set VERSION_NAME from $DEFINITION. Then compute the installation prefix.
+  VERSION_NAME="${DEFINITION##*/}"
   [ -n "$DEBUG" ] && VERSION_NAME="${VERSION_NAME}-debug"
   PREFIX="${PYENV_ROOT}/versions/${VERSION_NAME}"
 
@@ -173,7 +179,7 @@ if [ -d "${PREFIX}/bin" ]; then
       # Since we know the python version is already installed, and are opting to
       # not force installation of existing versions, we just `exit 0` here to
       # leave things happy
-    exit 0
+      continue
     fi
   fi
 
@@ -240,13 +246,6 @@ fi
   # Execute `before_install` hooks.
   for hook in "${before_hooks[@]}"; do eval "$hook"; done
 
-# Plan cleanup on unsuccessful installation.
-cleanup() {
-  [ -z "${PREFIX_EXISTS}" ] && rm -rf "$PREFIX"
-}
-
-trap cleanup SIGINT
-
   # Invoke `python-build` and record the exit status in $STATUS.
   STATUS=0
   python-build $KEEP $VERBOSE $HAS_PATCH $DEBUG "$DEFINITION" "$PREFIX" || STATUS="$?"
@@ -283,7 +282,10 @@ for hook in "${after_hooks[@]}"; do eval "$hook"; done
   if [ "$STATUS" == "0" ]; then
     pyenv-rehash
   else
+    break
     cleanup
   fi
 
-exit "$STATUS"
+done
+
+exit "${STATUS:-0}"

plugins/python-build/test/pyenv.bats

@@ -24,6 +24,26 @@ stub_python_build() {
   unstub pyenv-rehash
 }
 
+@test "install proper multi versions" {
+  #stub python-build "--lib : $BATS_TEST_DIRNAME/../bin/python-build --lib" 'echo python-build "$@"' 'echo python-build "$@"'
+  #stub pyenv-latest ": false" ": false"
+  stub_python_build 'echo python-build "$@"' 'echo python-build "$@"'
+  stub pyenv-latest ": false"
+  stub pyenv-rehash 'true'
+
+  run pyenv-install 3.4.1 3.4.2
+  assert_success
+  assert_output <<OUT
+python-build 3.4.1 ${TMP}/pyenv/versions/3.4.1
+python-build 3.4.2 ${TMP}/pyenv/versions/3.4.2
+OUT
+
+  unstub python-build
+  unstub pyenv-latest
+  unstub pyenv-hooks
+  unstub pyenv-rehash
+}
+
 @test "install resolves a prefix" {
   stub_python_build 'echo python-build "$@"'
   stub pyenv-latest '-q -k 3.4 : echo 3.4.2'
@@ -37,6 +57,24 @@ stub_python_build() {
   unstub pyenv-rehash
 }
 
+@test "install resolves a prefix with multi versions" {
+  stub_python_build 'echo python-build "$@"' 'echo python-build "$@"'
+  stub pyenv-latest '-q -k 3.4 : echo 3.4.2' '-q -k 3.5 : echo 3.5.2'
+  stub pyenv-rehash 'true'
+  pyenv-latest || true  # pass through the stub entry added by stub_python_build
+
+  run pyenv-install 3.4 3.5
+  assert_success <<OUT
+python-build 3.4.2 ${PYENV_ROOT}/versions/3.4.2
+python-build 3.5.2 ${PYENV_ROOT}/versions/3.5.2
+OUT
+
+
+  unstub python-build
+  unstub pyenv-hooks
+  unstub pyenv-rehash
+}
+
 @test "install pyenv local version by default" {
   stub_python_build 'echo python-build "$1"'
   stub pyenv-local 'echo 3.4.2'
@@ -48,6 +86,21 @@ stub_python_build() {
   unstub pyenv-local
 }
 
+@test "install pyenv local multi versions by default" {
+  stub_python_build 'echo python-build "$1"' 'echo python-build "$1"'
+  stub pyenv-local 'printf "%s\n%s\n" 3.4.2 3.4.1'
+  stub pyenv-latest ": false"
+
+  run pyenv-install
+  assert_success <<OUT
+python-build 3.4.2"
+python-build 3.4.1"
+OUT
+
+  unstub python-build
+  unstub pyenv-local
+}
+
 @test "list available versions" {
   stub_python_build \
     "--definitions : echo 2.6.9 2.7.9-rc1 2.7.9-rc2 3.4.2 | tr ' ' $'\\n'"
@@ -169,22 +222,23 @@ ${PYENV_ROOT}/plugins/foo/share/python-build
 OUT
 }
 
-@test "not enough arguments for pyenv-install" {
+@test "not enough arguments for pyenv-install if no local version" {
   stub_python_build
   stub pyenv-help 'install : true'
 
   run pyenv-install
   assert_failure
   unstub pyenv-help
+  assert_output ""
 }
 
-@test "too many arguments for pyenv-install" {
+@test "multi arguments for pyenv-install" {
   stub_python_build
   stub pyenv-help 'install : true'
 
   run pyenv-install 3.4.1 3.4.2
-  assert_failure
-  unstub pyenv-help
+  assert_success
+  assert_output ""
 }
 
 @test "show help for pyenv-install" {