96 lines
2.7 KiB
Bash
Executable File
96 lines
2.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Possible options:
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# --dry-run -n : only show what would be done without doing anything
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# config directory
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config_dir="$HOME/dotfiles/"
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mapping_file="$config_dir/MAPPING"
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skel_dir="$config_dir/skel/"
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# backup directory, files that would otherwise be overwritten go there
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backup_dir="$HOME/.dotfiles.bak/"
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# these folders inside $config_dir will be ignored
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ignore_folders=('scripts' 'skel')
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MAPPING_SEPARATOR='::'
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dryrun=0
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while [[ $# -gt 0 ]] ; do
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case "$1" in
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-n|--dry-run)
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echo "dry run"
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dryrun=1
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;;
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*)
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echo "invalid parameters"
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exit 1
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;;
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esac
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shift
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done
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path_combine()
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{
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echo "$(dirname "$1")/$(basename "$1")/$2"
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}
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DEFAULT_ROOT="$HOME"
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# returns "" if no mapping necessary
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# format of the MAPPING file:
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# folder::root
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get_mapping()
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{
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entry="$(grep -E "^$1$MAPPING_SEPARATOR.+$" "$mapping_file" | head -n1 | grep -Eo "$MAPPING_SEPARATOR.+$" | cut -c 3-)"
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echo "$entry"
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}
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backup_dir="$backup_dir/$(date +%Y-%m-%dT%H:%M:%S)"
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# backup the old config files, symlinks will be skipped
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# then symlink the files in $config_dir into the home directory
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while IFS= read -d $'\0' -r folder ; do
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folder="$(basename "$folder")"
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ignored=0
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for ignore in "${ignore_folders[@]}" ; do
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if [[ "$ignore" == "$folder" ]] ; then
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ignored=1
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fi
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done
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if (( "$ignored" )) ; then
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continue
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fi
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mapping="$(get_mapping "$folder")"
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source_folder="$(path_combine "$config_dir" "$folder")"
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[[ "$(ls "$source_folder")" ]] || continue
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for file in "$source_folder"/* ; do
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if [[ -z "$mapping" ]]; then
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destination="$(path_combine "$DEFAULT_ROOT" ".$(basename "$file")")"
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else
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destination="$(path_combine "$(path_combine "$HOME" "$mapping")" "$(basename "$file")")"
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fi
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if [[ -L "$destination" ]]; then
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continue
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elif [[ -e "$destination" ]]; then
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backup_destination="$(path_combine "$backup_dir" "$(basename "$destination")")"
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if ! [[ -d "$backup_dir" ]] ; then
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echo "mkdir -p \"$backup_dir\""
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(( $dryrun )) || mkdir -p "$backup_dir"
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fi
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echo "mv \"$destination\" -> \"$backup_destination\""
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(( $dryrun )) || mv "$destination" "$backup_destination"
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fi
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[[ -e "$destination" ]] && [[ "$(readlink "$destination")" == "$file" ]] && continue
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echo "ln -sf \"$file\" -> \"$destination\""
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(( $dryrun )) || ln -sf "$file" "$destination"
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done
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done < <(find "$config_dir"/* -maxdepth 0 -mindepth 0 -type d -print0)
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(( $dryrun )) || rsync --archive --verbose --ignore-existing "$skel_dir/" "$HOME"
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