dotfiles script v0.4.0

- add 'linkstatus' command

bin/dotfiles

@@ -2,7 +2,7 @@
 
 ##
 ## binaryDiv's dotfiles management script
-## Version 0.3.1
+## Version 0.4.0
 ##
 
 usage() {
@@ -18,10 +18,12 @@ usage() {
 	                (this will NOT create links for all dotfiles, though)
 
 	Dotfile management:
-	  ls [DIR]      list contents of .dotfiles directory (or DIR relative to it)
-	  diff FILE     use vimdiff to compare ~/FILE to ~/.dotfiles/FILE
-	  link FILE...  create a symlink from ~/FILE to ~/.dotfiles/FILE (multiple files possible)
-	                (-q: be quiet, only print something if an error occurs)
+	  ls [DIR]          list contents of .dotfiles directory (or DIR relative to it)
+	  diff FILE         use vimdiff to compare ~/FILE to ~/.dotfiles/FILE
+	  link FILE...      create a symlink from ~/FILE to ~/.dotfiles/FILE (multiple files possible)
+	                    (-q: be quiet, only print something if an error occurs)
+	  linkstatus [DIR]  list contents of .dotfiles with information about whether there are links to
+	                    them in ~/, whether they differ, etc...
 
 	Synchronization:
 	  git ARGS...   wrapper for git (all arguments are passed on to git)
@@ -89,7 +91,57 @@ case "$cmd" in
 		ls -lAh --color=auto "$lsdir"
 	;;
 
-	# TODO: Command 'status' or 'linkstatus' to show which files are linked and which are not
+	linkstatus)
+		subdir=""
+		if [[ -n $1 ]]; then
+			subdir="${1%/}"
+			[[ -e $subdir ]] || { echo "$dotfilesdir/$subdir does not exist"; exit 1; }
+			[[ -d $subdir ]] && subdir="$subdir/"
+		fi
+
+		shopt -s nullglob dotglob
+		cd $dotfilesdir
+		dotdirs=()
+
+		for file in $subdir*; do
+			[[ -e $file ]] || continue
+			[[ $file = ".git" ]] && continue
+
+			file_home="$homedir/$file"
+			file_dotfiles="$dotfilesdir/$file"
+
+			if [[ -e $file_home ]]; then
+				if [[ "$(realpath "$file_home")" -ef "$file_dotfiles" ]]; then
+					file_status="    LINKED  "
+				elif [[ -d $file_home ]]; then
+					dotdirs+=($file)
+					continue
+				elif [[ -f $file_home ]] && cmp --silent "$file_home" "$file_dotfiles"; then
+					file_status="==  EQUAL   "
+				else
+					file_status="<>  DIFFERS "
+				fi
+			else
+				if [[ -d $file_dotfiles ]]; then
+					file_status="++  NEW DIR "
+				else
+					file_status="++  NEW FILE"
+				fi
+			fi
+
+			[[ -d $file_dotfiles ]] && file="$file/"
+			echo "$file_status    $file"
+		done
+
+		if [[ $dotdirs ]]; then
+			echo
+			for dir in ${dotdirs[@]}; do
+				echo "[$dir]"
+				dotfiles linkstatus "$dir" | grep '\(LINKED\|EQUAL\|DIFFERS\|NEW\)'
+				echo
+			done
+		fi
+	;;
 
 	diff)
 		[[ -n $1 ]] || { echo "$(basename $0) $cmd: Missing argument."; exit 1; }
@@ -148,7 +200,7 @@ case "$cmd" in
 		_dotfiles() {
 			COMPREPLY=()
 			local cur="${COMP_WORDS[COMP_CWORD]}"
-			local commands="help install ls diff link git pull"
+			local commands="help install ls diff link linkstatus git pull"
 			local gitcommands="add commit diff fetch log pull push rebase status"
 
 			if [[ $COMP_CWORD -eq 1 ]]; then
@@ -159,7 +211,7 @@ case "$cmd" in
 						[[ $COMP_CWORD -eq 2 ]] && _dotfiles_filenames
 					;;
 
-					link)
+					link|linkstatus)
 						_dotfiles_filenames
 					;;