Merge pull request #302 from sstephenson/ruby-version

Support for .ruby-version files

libexec/rbenv-local

@@ -6,14 +6,18 @@
 #        rbenv local --unset
 #
 # Sets the local directory-specific Ruby version by writing the version
-# name to a file named `.rbenv-version'.
+# name to a file named `.ruby-version'.
 #
-# When you run a Ruby command, rbenv will look for an `.rbenv-version'
+# When you run a Ruby command, rbenv will look for a `.ruby-version'
 # file in the current directory and each parent directory. If no such
 # file is found in the tree, rbenv will use the global Ruby version
 # specified with `rbenv global', or the version specified in the
 # RBENV_VERSION environment variable.
 #
+# For backwards compatibility, rbenv will also read version
+# specifications from `.rbenv-version' files, but a `.ruby-version'
+# file in the same directory takes precedence.
+#
 # <version> should be a string matching a Ruby version known to rbenv.
 # The special version string `system' will use your default system Ruby.
 # Run `rbenv versions' for a list of available Ruby versions.
@@ -29,14 +33,20 @@ if [ "$1" = "--complete" ]; then
 fi
 
 RBENV_VERSION="$1"
-RBENV_VERSION_FILE=".rbenv-version"
 
 if [ "$RBENV_VERSION" = "--unset" ]; then
-  rm -f "$RBENV_VERSION_FILE"
+  rm -f .ruby-version .rbenv-version
 elif [ -n "$RBENV_VERSION" ]; then
-  rbenv-version-file-write "$RBENV_VERSION_FILE" "$RBENV_VERSION"
+  if [ "$(RBENV_VERSION= rbenv-version-origin)" -ef .rbenv-version ]; then
+    rm -f .rbenv-version
+    { echo "rbenv: removed existing \`.rbenv-version' file and migrated"
+      echo "       local version specification to \`.ruby-version' file"
+    } >&2
+  fi
+  rbenv-version-file-write .ruby-version "$RBENV_VERSION"
 else
-  rbenv-version-file-read "$RBENV_VERSION_FILE" ||
+  rbenv-version-file-read .ruby-version ||
+  rbenv-version-file-read .rbenv-version ||
   { echo "rbenv: no local version configured for this directory"
     exit 1
   } >&2

libexec/rbenv-version-file

@@ -6,7 +6,10 @@ set -e
 find_local_version_file() {
   local root="$1"
   while [ -n "$root" ]; do
-    if [ -e "${root}/.rbenv-version" ]; then
+    if [ -e "${root}/.ruby-version" ]; then
+      echo "${root}/.ruby-version"
+      exit
+    elif [ -e "${root}/.rbenv-version" ]; then
       echo "${root}/.rbenv-version"
       exit
     fi

libexec/rbenv-version-name

@@ -13,10 +13,18 @@ if [ -z "$RBENV_VERSION" ] || [ "$RBENV_VERSION" = "system" ]; then
   exit
 fi
 
-RBENV_VERSION_PATH="${RBENV_ROOT}/versions/${RBENV_VERSION}"
+version_exists() {
+  local version="$1"
+  [ -d "${RBENV_ROOT}/versions/${version}" ]
+}
 
-if [ -d "$RBENV_VERSION_PATH" ]; then
+if version_exists "$RBENV_VERSION"; then
   echo "$RBENV_VERSION"
+elif version_exists "${RBENV_VERSION#ruby-}"; then
+  { echo "warning: ignoring extraneous \`ruby-' prefix in version \`${RBENV_VERSION}'"
+    echo "         (set by $(rbenv-version-origin))"
+  } >&2
+  echo "${RBENV_VERSION#ruby-}"
 else
   echo "rbenv: version \`$RBENV_VERSION' is not installed" >&2
   exit 1

libexec/rbenv-versions

@@ -21,7 +21,7 @@ fi
 
 print_version() {
   if [ "$1" == "$current_version" ]; then
-    echo "${hit_prefix}$(rbenv-version)"
+    echo "${hit_prefix}$(rbenv-version 2>/dev/null)"
   else
     echo "${miss_prefix}$1"
   fi