plugin/osx: shellcheck && shfmt

plugins/osx: dead code removal

No need for gymnastics to determine if variable had been exported priort to modification. If it was, then it still is. See man bash(1).

clean_files.txt

@@ -103,6 +103,7 @@ plugins/available/jump.plugin.bash
 plugins/available/less-pretty-cat.plugin.bash
 plugins/available/node.plugin.bash
 plugins/available/nodenv.plugin.bash
+plugins/available/osx.plugin.bash
 plugins/available/percol.plugin.bash
 plugins/available/plenv.plugin.bash
 plugins/available/pyenv.plugin.bash

plugins/available/osx.plugin.bash

@@ -1,16 +1,9 @@
-cite about-plugin
+# shellcheck shell=bash
 about-plugin 'osx-specific functions'
 
 # OS X: Open new tabs in same directory
-if [[ $OSTYPE == 'darwin'* ]]; then
-  if type update_terminal_cwd > /dev/null 2>&1 ; then
-    if ! [[ $PROMPT_COMMAND =~ (^|;)update_terminal_cwd($|;) ]] ; then
-      PROMPT_COMMAND="${PROMPT_COMMAND%;};update_terminal_cwd"
-      declared="$(declare -p PROMPT_COMMAND)"
-      [[ "$declared" =~ \ -[aAilrtu]*x[aAilrtu]*\  ]] 2>/dev/null
-      [[ $? -eq 0 ]] && export PROMPT_COMMAND
-    fi
-  fi
+if _is_function update_terminal_cwd; then
+	safe_append_prompt_command 'update_terminal_cwd'
 fi
 
 function tab() {
@@ -30,12 +23,12 @@ EOF
 
 # renames the current os x terminal tab title
 function tabname {
-  printf "\e]1;$1\a"
+	printf '%b' "\e]1;$1\a"
 }
 
 # renames the current os x terminal window title
 function winname {
-  printf "\e]2;$1\a"
+	printf '%b' "\e]2;$1\a"
 }
 
 # this one switches your os x dock between 2d and 3d
@@ -46,42 +39,44 @@ function dock-switch() {
 	example '$ dock-switch 2d'
 	group 'osx'
 
-    if [[ "$OSTYPE" = 'darwin'* ]]; then
-
-        if [[ $1 = 3d ]] ; then
+	case $OSTYPE in
+		*'darwin'*)
+			case $1 in
+				3d)
 					defaults write com.apple.dock no-glass -boolean NO
 					killall Dock
-
-        elif [[ $1 = 2d ]] ; then
+					;;
+				2d)
 					defaults write com.apple.dock no-glass -boolean YES
 					killall Dock
-
-        else
+					;;
+				*)
 					echo "usage:"
 					echo "dock-switch 2d"
 					echo "dock-switch 3d."
-        fi
-    else
+					;;
+			esac
+			;;
+		*)
 			echo "Sorry, this only works on Mac OS X"
-    fi
+			;;
+	esac
 }
 
-function pman ()
-{
+function pman() {
 	about 'view man documentation in Preview'
 	param '1: man page to view'
 	example '$ pman bash'
 	group 'osx'
-    man -t "${1}" | open -fa $PREVIEW
+	man -t "${1}" | open -fa 'Preview'
 }
 
-function pri ()
-{
+function pri() {
 	about 'display information about Ruby classes, modules, or methods, in Preview'
 	param '1: Ruby method, module, or class'
 	example '$ pri Array'
 	group 'osx'
-    ri -T "${1}" | open -fa $PREVIEW
+	ri -T "${1}" | open -fa 'Preview'
 }
 
 # Download a file and open it in Preview
@@ -90,12 +85,11 @@ function prevcurl() {
 	param '1: url'
 	group 'osx'
 
-  if [[ ! $OSTYPE = 'darwin'* ]]
-  then
+	if [[ ! $OSTYPE = 'darwin'* ]]; then
 		echo "This function only works with Mac OS X"
 		return 1
 	fi
-  curl "$*" | open -fa $PREVIEW
+	curl "$*" | open -fa 'Preview'
 }
 
 function refresh-launchpad() {
@@ -116,18 +110,19 @@ function list-jvms(){
 	example 'list-jvms'
 	group 'osx'
 
-  JVMS_DIR="/Library/Java/JavaVirtualMachines"
-  JVMS=( $(ls ${JVMS_DIR}) )
+	local JVMS_DIR="/Library/Java/JavaVirtualMachines"
+	# The following variables are intended to impact the enclosing scope, not local.
+	JVMS=("${JVMS_DIR}"/*)
 	JVMS_STATES=()
 
 	# Map state of JVM
 	for ((i = 0; i < ${#JVMS[@]}; i++)); do
-    if [[ -f "${JVMS_DIR}/${JVMS[$i]}/Contents/Info.plist" ]]; then
-      JVMS_STATES[${i}]=enabled
+		if [[ -f "${JVMS[i]}/Contents/Info.plist" ]]; then
+			JVMS_STATES[i]=enabled
 		else
-      JVMS_STATES[${i}]=disabled
+			JVMS_STATES[i]=disabled
 		fi
-      echo "${i} ${JVMS[$i]} ${JVMS_STATES[$i]}"
+		printf '%s\t%s\t%s\n' "${i}" "${JVMS[i]##*/}" "${JVMS_STATES[i]}"
 	done
 }
 
@@ -135,17 +130,16 @@ function pick-default-jvm(){
 	about 'Pick the default Java Virtual Machines in system-wide scope in macOS'
 	example 'pick-default-jvm'
 
+	# Declare variables
+	local JVMS JVMS_STATES
+	local DEFAULT_JVM_DIR DEFAULT_JVM OPTION
+
 	# Call function for listing
 	list-jvms
 
-  # Declare variables
-  local DEFAULT_JVM_DIR=""
-  local DEFAULT_JVM=""
-  local OPTION=""
-
 	# OPTION for default jdk and set variables
 	while [[ ! "$OPTION" =~ ^[0-9]+$ || OPTION -ge "${#JVMS[@]}" ]]; do
-    read -p "Enter Default JVM: "  OPTION
+		read -rp "Enter Default JVM: " OPTION
 		if [[ ! "$OPTION" =~ ^[0-9]+$ ]]; then
 			echo "Please enter a number"
 		fi
@@ -155,22 +149,19 @@ function pick-default-jvm(){
 		fi
 	done
 
-  DEFAULT_JVM_DIR="${JVMS_DIR}/${JVMS[$OPTION]}"
-  DEFAULT_JVM="${JVMS[$OPTION]}"
+	DEFAULT_JVM_DIR="${JVMS[OPTION]}"
+	DEFAULT_JVM="${JVMS[OPTION]##*/}"
 
 	# Disable all jdk
 	for ((i = 0; i < ${#JVMS[@]}; i++)); do
-    if [[ -f "${JVMS_DIR}/${JVMS[$i]}/Contents/Info.plist" ]]; then
-      sudo mv "${JVMS_DIR}/${JVMS[$i]}/Contents/Info.plist" "${JVMS_DIR}/${JVMS[$i]}/Contents/Info.plist.disable"
+		if [[ "${JVMS[i]}" != "${DEFAULT_JVM_DIR}" && -f "${JVMS[i]}/Contents/Info.plist" ]]; then
+			sudo mv "${JVMS[i]}/Contents/Info.plist" "${JVMS[i]}/Contents/Info.plist.disable"
 		fi
 	done
 
 	# Enable default jdk
 	if [[ -f "${DEFAULT_JVM_DIR}/Contents/Info.plist.disable" ]]; then
-    sudo mv "${DEFAULT_JVM_DIR}/Contents/Info.plist.disable" "${DEFAULT_JVM_DIR}/Contents/Info.plist"
-    echo "Enabled ${DEFAULT_JVM} as default JVM"
+		sudo mv -vn "${DEFAULT_JVM_DIR}/Contents/Info.plist.disable" "${DEFAULT_JVM_DIR}/Contents/Info.plist" \
+			&& echo "Enabled ${DEFAULT_JVM} as default JVM"
 	fi
 }
-
-# Make this backwards compatible
-alias pcurl='prevcurl'