Fix some issues reported by shellcheck

libexec/rbenv

@@ -21,7 +21,8 @@ abort() {
 
 if enable -f "${BASH_SOURCE%/*}"/../libexec/rbenv-realpath.dylib realpath 2>/dev/null; then
   abs_dirname() {
-    local path="$(realpath "$1")"
+    local path
+    path="$(realpath "$1")"
     echo "${path%/*}"
   }
 else

libexec/rbenv-commands

@@ -28,15 +28,15 @@ shopt -s nullglob
     for command in "${path}/rbenv-"*; do
       command="${command##*rbenv-}"
       if [ -n "$sh" ]; then
-        if [ ${command:0:3} = "sh-" ]; then
-          echo ${command##sh-}
+        if [ "${command:0:3}" = "sh-" ]; then
+          echo "${command##sh-}"
         fi
       elif [ -n "$nosh" ]; then
-        if [ ${command:0:3} != "sh-" ]; then
-          echo ${command##sh-}
+        if [ "${command:0:3}" != "sh-" ]; then
+          echo "${command##sh-}"
         fi
       else
-        echo ${command##sh-}
+        echo "${command##sh-}"
       fi
     done
   done

libexec/rbenv-help

@@ -42,6 +42,7 @@ extract_initial_comment_block() {
 }
 
 collect_documentation() {
+  # shellcheck disable=SC2016
   $(type -p gawk awk | head -1) '
     /^Summary:/ {
       summary = substr($0, 10)
@@ -86,7 +87,8 @@ collect_documentation() {
 }
 
 documentation_for() {
-  local filename="$(command_path "$1")"
+  local filename
+  filename="$(command_path "$1")"
   if [ -n "$filename" ]; then
     extract_initial_comment_block < "$filename" | collect_documentation
   fi
@@ -114,7 +116,7 @@ print_help() {
   eval "$(documentation_for "$command")"
   [ -n "$help" ] || help="$summary"
 
-  if [ -n "$usage" -o -n "$summary" ]; then
+  if [ -n "$usage" ] || [ -n "$summary" ]; then
     if [ -n "$usage" ]; then
       echo "$usage"
     else

libexec/rbenv-rehash

@@ -83,7 +83,7 @@ remove_outdated_shims() {
 list_executable_names() {
   local version file
   rbenv-versions --bare --skip-aliases | \
-  while read version; do
+  while read -r version; do
     for file in "${RBENV_ROOT}/versions/${version}/bin/"*; do
       echo "${file##*/}"
     done
@@ -136,6 +136,7 @@ shopt -s nullglob
 # executables.
 create_prototype_shim
 remove_outdated_shims
+# shellcheck disable=SC2046
 make_shims $(list_executable_names | sort -u)
 
 

libexec/rbenv-root

@@ -1,3 +1,3 @@
 #!/usr/bin/env bash
 # Summary: Display the root directory where versions and shims are kept
-echo $RBENV_ROOT
+echo "$RBENV_ROOT"

libexec/rbenv-whence

@@ -20,7 +20,7 @@ fi
 
 whence() {
   local command="$1"
-  rbenv-versions --bare | while read version; do
+  rbenv-versions --bare | while read -r version; do
     path="$(rbenv-prefix "$version")/bin/${command}"
     if [ -x "$path" ]; then
       [ "$print_paths" ] && echo "$path" || echo "$version"