create_symlinks

#!/bin/env zsh

dir=~/dotfiles

# List all files in target dotfiles directory (excluding .git, this script, and the readme)
function list_candidates () find $dir \( \
	 -path $dir/.git -o \
	 -path $dir/create_symlinks -o \
	 -path $dir/README.md \) \
	 -prune -o -type f -print \

#create any missing subdirectories
list_candidates | awk 'BEGIN{FS=OFS="/"}{NF--; print}' | sort | uniq | xargs mkdir -pv

# create any missing symlinks, prompting if file already exists
for df in $(list_candidates | sed -En "s/.*dotfiles\///p") ; do
    # file does not exist: create link
    if ! test -e ~/$df; then
	echo CREATING SYMLINK: $HOME/$df -\> $dir/$df
	ln -s $dir/$df ~/$df ;
    # link already exists: skip
    elif test -L ~/$df; then ;
    # non-link file exists: prompt user to confirm overwrite
    elif test -f ~/$df; then
	echo Overwrite file ~/$df with a symlink into $dir\? \[y/N\]
	read overwrite
	if [ "$overwrite" = "y" ] ; then
	    rm ~/$df ;
	    ln -s $dir/$df ~/$df ;
	fi
	;
    else
	echo WARNING: unexpected file type: ~/$df
    fi
done