Merge branch 'version-hooks'

Closes #739

libexec/rbenv-hooks

@@ -9,6 +9,8 @@ set -e
 if [ "$1" = "--complete" ]; then
   echo exec
   echo rehash
+  echo version-name
+  echo version-origin
   echo which
   exit
 fi

libexec/rbenv-version-name

@@ -8,6 +8,13 @@ if [ -z "$RBENV_VERSION" ]; then
   RBENV_VERSION="$(rbenv-version-file-read "$RBENV_VERSION_FILE" || true)"
 fi
 
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`rbenv-hooks version-name`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do
+  source "$script"
+done
+
 if [ -z "$RBENV_VERSION" ] || [ "$RBENV_VERSION" = "system" ]; then
   echo "system"
   exit

libexec/rbenv-version-origin

@@ -3,7 +3,18 @@
 set -e
 [ -n "$RBENV_DEBUG" ] && set -x
 
-if [ -n "$RBENV_VERSION" ]; then
+unset RBENV_VERSION_ORIGIN
+
+OLDIFS="$IFS"
+IFS=$'\n' scripts=(`rbenv-hooks version-origin`)
+IFS="$OLDIFS"
+for script in "${scripts[@]}"; do
+  source "$script"
+done
+
+if [ -n "$RBENV_VERSION_ORIGIN" ]; then
+  echo "$RBENV_VERSION_ORIGIN"
+elif [ -n "$RBENV_VERSION" ]; then
   echo "RBENV_VERSION environment variable"
 else
   rbenv-version-file

test/version-name.bats

@@ -22,6 +22,19 @@ setup() {
   assert_success "system"
 }
 
+@test "RBENV_VERSION can be overridden by hook" {
+  create_version "1.8.7"
+  create_version "1.9.3"
+
+  mkdir -p "${RBENV_ROOT}/rbenv.d/version-name"
+  cat > "${RBENV_ROOT}/rbenv.d/version-name/test.bash" <<HOOK
+RBENV_VERSION=1.9.3
+HOOK
+
+  RBENV_VERSION=1.8.7 RBENV_HOOK_PATH="${RBENV_ROOT}/rbenv.d" run rbenv-version-name
+  assert_success "1.9.3"
+}
+
 @test "RBENV_VERSION has precedence over local" {
   create_version "1.8.7"
   create_version "1.9.3"

test/version-origin.bats

@@ -36,3 +36,18 @@ setup() {
   run rbenv-version-origin
   assert_success "${PWD}/.rbenv-version"
 }
+
+@test "reports from hook" {
+  mkdir -p "${RBENV_ROOT}/rbenv.d/version-origin"
+  cat > "${RBENV_ROOT}/rbenv.d/version-origin/test.bash" <<HOOK
+RBENV_VERSION_ORIGIN=plugin
+HOOK
+
+  RBENV_VERSION=1 RBENV_HOOK_PATH="${RBENV_ROOT}/rbenv.d" run rbenv-version-origin
+  assert_success "plugin"
+}
+
+@test "doesn't inherit RBENV_VERSION_ORIGIN from environment" {
+  RBENV_VERSION_ORIGIN=ignored run rbenv-version-origin
+  assert_success "${RBENV_ROOT}/version"
+}