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#!/bin/bash
# Simple dotfile linking script.
# Partly inspired by dotsync (https://github.com/dotphiles/dotsync).
#
# This script takes files in a version-controllable "dotdir" directory
# and creates corresponding symlinks in the user's home directory.
# Any existing files in the home directory are backed up before being
# replaced with a symlink.
# Root directory of dotfiles project
BASEDIR=$(dirname "$(readlink -f "$0")")
# Directory containing all dotfiles that will be linked to $HOMEDIR
DOTDIR=${BASEDIR}/home
# Directory into which files will be linked
HOMEDIR=${HOME}
# Directory into which any pre-existing dotfiles will be copied
BACKUPDIR=${HOMEDIR}/.updatedots-backup
# Dotfiles relative to $DOTDIR
RDOTFILES=$(find ${DOTDIR} -type f -print | sed "s|^${DOTDIR}/||g")
# Command used to create symbolic links
LINK="ln --symbolic --relative"
# Publish dotfiles to home directory, backing up any collisions
create_links() {
if [ ! -e "$BACKUPDIR" ]; then
mkdir "$BACKUPDIR"
fi
if [ -n "$(ls -A $BACKUPDIR)" ]; then
echo "Backup directory $BACKUPDIR is not empty. Local files could be lost. Aborting." >&2
exit 1
fi
local moved=0
echo "*** Linking dotfiles from $(realpath $DOTDIR) to $HOMEDIR ***"
for relative in $RDOTFILES; do
local src=$DOTDIR/$relative
local dest=$HOMEDIR/$relative
echo -n "$dest: "
mkdir -p $(dirname "$dest")
if [ -e "$dest" ] && [ $(readlink -f "$dest") = $(readlink -f "$src") ]; then
echo "nothing to be done"
else
if [ -e "$dest" ]; then
mv "$dest" "$BACKUPDIR/$file"
moved=1
echo -n "saved original, "
fi
$LINK "$src" "$dest"
echo "linked"
fi
done
echo "*** Finished linking dotfiles ***"
echo
if [ "$moved" -gt 0 ]; then
echo "WARNING: some local files were moved to $BACKUPDIR" >&2
fi
}
create_links
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