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136 lines
4.1 KiB
136 lines
4.1 KiB
#!/usr/bin/env bash
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#
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# A script to convert the local system to use my dotfiles my local dotfiles over
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# the provided ones already on the system. This script will backup any of the
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# existing dot files, before linking to the ones in this repository.
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#
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# Helper Functions
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# Make a backup of the existing file if it exists
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# Then link to our supplied dotfile
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link() {
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# Only make a backup if an existing file is there and is not a link
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if [ -f "$1/$2" ] && [ ! -L "$1/$2" ]; then
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cp "$1/$2" "$1/$2.old"
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echo "Backed up original $2 to $1/$2.old"
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fi
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ln -sf "$3" "$1/$2"
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}
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link_dir() {
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# Only make a backup if an existing directory is there and is not a link
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if [ -d "$1/$2" ] && [ ! -L "$1/$2" ]; then
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mv "$1/$2" "$1/$2.old"
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echo "Backed up original $2 to $1/$2.old"
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fi
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# Don't overwrite links
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if [ ! -L "$1/$2" ]; then
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echo "ln -sf $3 $1/$2"
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ln -sf "$3" "$1/$2"
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fi
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}
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# Escape the path so we can use it in sed
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escape_path() {
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local safe="$(echo $1 | sed 's/\//\\\//g')"
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echo $safe
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}
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set -x
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set -e
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# Need to get the source for the script
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SOURCE="${BASH_SOURCE[0]}"
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while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
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TARGET="$(readlink "$SOURCE")"
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if [[ $TARGET == /* ]]; then
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echo "SOURCE '$SOURCE' is an absolute symlink to '$TARGET'"
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SOURCE="$TARGET"
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else
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DIR="$( dirname "$SOURCE" )"
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echo "SOURCE '$SOURCE' is a relative symlink to '$TARGET' (relative to '$DIR')"
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SOURCE="$DIR/$TARGET" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
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fi
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done
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echo "SOURCE is '$SOURCE'"
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RDIR="$( dirname "$SOURCE" )"
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DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
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if [ "$DIR" != "$RDIR" ]; then
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echo "DIR '$RDIR' resolves to '$DIR'"
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fi
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echo "DIR is '$DIR'"
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# Step into the directory where thes script is
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cd $DIR
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# Store the path to the root directory and the reference home directory
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GIT_DIR="$(echo `git rev-parse --show-toplevel`)"
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cd $GIT_DIR
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# Home directory in the git directory
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DOTFILES_DIR="$GIT_DIR"
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DOTFILES_HOME="$DOTFILES_DIR/home"
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# Configure .vimrc
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link "$HOME" ".vimrc" "$DOTFILES_HOME/.vimrc"
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# Download pathogen if it doesn't exist already
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VIM_AUTOLOAD=$HOME/.vim/autoload
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mkdir -p $VIM_AUTOLOAD
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if [ ! -f "$VIM_AUTOLOAD/pathogen.vim" ]; then
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curl -LSso $VIM_AUTOLOAD/pathogen.vim https://tpo.pe/pathogen.vim
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fi
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# Configure Pathogen Plugins
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VIM_BUNDLE=$HOME/.vim/bundle
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# Make the bundle directory and it's parents if they don't exist
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mkdir -p $VIM_BUNDLE
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# A list of vim plugins that are submodules
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plugins=($(ls -d $DOTFILES_HOME/.vim/bundle/* | tr -s ' '))
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#echo "${plugins[@]}"
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# Loop through all of the plugins and install them as links in the bundle directory
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for plugin in ${plugins[@]}; do
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parts=($(echo "$plugin" | tr '/' ' '))
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plugin_name=${parts[-1]}
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#echo "$VIM_BUNDLE $plugin_name $plugin"
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link_dir $VIM_BUNDLE $plugin_name $plugin
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done
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# Configure .gitconfig
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link "$HOME" ".gitconfig" "$DOTFILES_HOME/.gitconfig"
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# Configure .zshrc
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link "$HOME" ".zshrc" "$DOTFILES_HOME/.zshrc"
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cd $GIT_DIR
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# Create an auto updater for the dotfiles
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SOURCE_MD5="$(md5sum scripts/.update_dotfiles.sh | tr -s ' ' | cut -d ' ' -f 1)"
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WRITE_NEW_UPDATER=false
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# If it doesn't exist, we need to create it
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if [ ! -f "$HOME/.update_dotfiles.sh" ]; then
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WRITE_NEW_UPDATER=true
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else
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# Now we need to check if the md5's don't match
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CURRENT_MD5="$(cat $HOME/.update_dotfiles.sh | tail -n 1 | tr -s ' ' | cut -d ' ' -f 2)"
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# No hash, we need to update the file
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if [ -z "$CURRENT_MD5" ]; then
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WRITE_NEW_UPDATER=true
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else
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# need to compare the hashes, if they don't match we need to update
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if [ "$CURRENT_MD5" != "$SOURCE_MD5" ]; then
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WRITE_NEW_UPDATER=true
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fi
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fi
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fi
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if $WRITE_NEW_UPDATER; then
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SAFE_PATH="$(escape_path $GIT_DIR)"
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cat "scripts/.update_dotfiles.sh" | sed "s/@GIT_DIR@/$SAFE_PATH/" > $HOME/.update_dotfiles.sh
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echo "# $SOURCE_MD5" >> $HOME/.update_dotfiles.sh
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chmod +x $HOME/.update_dotfiles.sh
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fi
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