install.sh: Refactor install script, Add new flags
Giving either --install or --update flag is neccessary for the script to proceed
-i | --install => Install the config.
-u | --update => Update the existing config without removing existing stuff.
-b | --backup 'path' => Custom config backup path.
-nb | --no-backup => Don't take existing config backup. Use with caution.
Update formatting using following command
shfmt -i 2 -sr -p -bn -ci -w install.sh
This commit is contained in:
Akianonymus
parent
a75d59a2bf
commit
e71b9bbece
178
install.sh
178
install.sh
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@ -1,74 +1,200 @@
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#!/bin/sh
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# check if git command is installed
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command -v git > /dev/null || {
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printf "Install git before proceeding\n"
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exit 1
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_usage() {
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printf "%s" \
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"Usage: sh ${0##*/} [ options ]
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-h | --help => Show this help.
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-i | --install => Install the config.
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-u | --update => Update the existing config without removing existing stuff.
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-b | --backup 'path' => Custom config backup path.
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-nb | --no-backup => Don't take existing config backup. Use with caution.
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"
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exit 0
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}
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printf "%s\n" "Installing packer"
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_check_install_dependencies() {
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_error_dependencies() {
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printf "%s\n" "Error: Install ${1} before proceeding."
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exit 1
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}
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_GIT="$(command -v git)" || _error_dependencies git
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_SED="$(command -v sed)" || _error_dependencies sed
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return 0
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}
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if [ -d ~/.local/share/nvim/site/pack/packer ]; then
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printf "%s\n" "Clearning previous packer installs"
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rm -rf ~/.local/share/nvim/site/pack
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fi
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_check_nvim_version() {
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version_string="$(nvim --version | grep -Eo 'NVIM.*v[0-9.]+' -m 1 | grep -Eo '[0-9.]+')" || return 1
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printf "%s\n" "${version_string}" | while IFS=. read -r num1 num2 num3; do
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{ [ "${num1}" -ge 0 ] && [ "${num2}" -ge 5 ] && [ "${num3}" -ge 0 ]; } || return 1
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done
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}
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_setup_packer() {
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_clone_packer() {
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[ -d "${_PACKER_PATH}" ] && rm -rf "${_PACKER_PATH}"
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printf "\n%s\n" "=> Cloning packer.."
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if git clone https://github.com/wbthomason/packer.nvim \
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~/.local/share/nvim/site/pack/packer/start/packer.nvim; then
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printf "%s\n" "=> Packer installed!"
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if "${_GIT}" clone "${_PACKER_REPO_URL}" \
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"${_PACKER_PATH}"; then
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printf "%s\n" "=> Packer Installed!"
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else
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printf "Error: Couldn't clone packer\n"
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exit 1
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fi
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}
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if [ "${_UPDATE}" = "true" ]; then
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printf "%s\n" "Updating packer"
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{ [ -d "${_PACKER_PATH}" ] \
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&& "${_GIT}" -C "${_PACKER_PATH}" pull "${_PACKER_REPO_URL}"; } || _clone_packer
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else
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printf "%s\n" "Installing packer"
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if [ -d ~/.local/share/nvim/site/pack/packer ]; then
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printf "%s\n" "Clearning previous packer installs"
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rm -rf ~/.local/share/nvim/site/pack
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fi
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_clone_packer
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fi
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printf "\n"
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return 0
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}
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_copy_config() {
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printf "%s\n" "Linking config"
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printf "%s\n" "Old nvim config will be changed to nvim.bak if exists! :0"
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# copying config
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if [ -d ~/.config/nvim ]; then
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if [ -d "${_CONFIG_PATH}" ]; then
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printf "%s\n" "Nvim Directory exists"
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printf "%s\n" "Changing nvim to nvim.bak"
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mv ~/.config/nvim/ ~/.config/nvim.bak/
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if [ "${_NO_BACKUP}" = "true" ]; then
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printf "%s\n" "Skipping backup as --no-backup flag was passed.."
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else
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printf "%s\n" "Taking backup of existing config.."
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mv "${_CONFIG_PATH}" "${_BACKUP_PATH}" || {
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printf "\n%s\n" "Error: Cannot move ${_CONFIG_PATH} to ${_BACKUP_PATH}"
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printf "\n%s\n" "Take backup manually or use -b/--backup to provide non-empty path or use -nb/--no-backup to skip backup."
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exit 1
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}
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fi
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printf "%s\n" "Creating new nvim directory"
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mkdir -p ~/.config/nvim
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else
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printf "%s\n" "Nvim Config doesn't exist so creating one"
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mkdir -p ~/.config/nvim/
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fi
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{ cp -r init.lua ~/.config/nvim/ && cp -r lua ~/.config/nvim/ ;} || {
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printf "Error: Couldn't copy nvim config\n"
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mkdir -p "${_CONFIG_PATH}" || {
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printf "%s\n" "Error: Cannot create folder ${_CONFIG_PATH}"
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exit 1
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}
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# change shell in nvim config
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_CURRENT_SHELL="${SHELL##*/}"
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{ cp -r init.lua lua "${_CONFIG_PATH}"/; } || {
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printf "Error: Couldn't copy nvim config\n"
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exit 1
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}
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return 0
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}
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_setup_terminal_shell() {
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_mappings_file="${_CONFIG_PATH}/lua/mappings.lua"
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# only ask for shellname if running in terminal
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if [ -t 1 ]; then
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printf "%s\n: " "Which shell do you want to use ? [ Enter nothing for current shell ( $_CURRENT_SHELL ) ]"
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read -r shellname
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fi
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shellname="${shellname:-${_CURRENT_SHELL}}"
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printf "%s\n" "$shellname"
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# don't try to do any changes if given shellname is same as bash
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if ! [ bash = "$shellname" ]; then
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# Reference: https://stackoverflow.com/a/4247319
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if "$(command -v sed)" -i'.bak' -e "s/bash/$shellname/g" ~/.config/nvim/lua/mappings.lua; then
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if "${_SED}" -i'.bak' -e "s/bash/$shellname/g" "${_mappings_file}"; then
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printf "\n%s\n" "=> Shell changed to $shellname on nvim successfully!"
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else
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printf "\n%s\n" "Cannot edit with sed, edit ~/.config/nvim/lua/mappings.lua manually to replace bash with $shellname."
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printf "\n%s\n" "Cannot edit with sed, edit ${_mappings_file} manually to replace bash with $shellname."
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fi
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rm -f ~/.config/nvim/lua/mappings.lua.bak # delete backup file created by sed
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rm -f "${_mappings_file}".bak # delete backup file created by sed
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else
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printf "\n%s\n" "=> Shell changed to $shellname on nvim successfully!"
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fi
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return 0
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}
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printf "\n%s\n" "=> Neovim will open with some errors, just press enter" && sleep 1
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_setup_arguments() {
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# default variables to be used
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_PACKER_PATH="${HOME}/.local/share/nvim/site/pack/packer/start/packer.nvim"
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_PACKER_REPO_URL="https://github.com/wbthomason/packer.nvim"
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_CONFIG_PATH="${HOME}/.config/nvim"
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_UPDATE=""
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_BACKUP_PATH="${_CONFIG_PATH}.bak"
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_NO_BACKUP="false"
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_CURRENT_SHELL="${SHELL##*/}"
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_check_longoptions() {
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[ -z "${2}" ] \
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&& printf '%s: %s: option requires an argument\nTry '"%s -h/--help"' for more information.\n' "${0##*/}" "${1}" "${0##*/}" \
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&& exit 1
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return 0
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}
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while [ $# -gt 0 ]; do
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case "${1}" in
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-h | --help) _usage ;;
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-i | --install) _UPDATE="false" ;;
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-u | --update) _UPDATE="true" ;;
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-b | --backup)
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_check_longoptions "${1}" "${2}"
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_BACKUP_PATH="${2}" && shift
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;;
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-nb | --nobackup) _NO_BACKUP="true" ;;
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esac
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shift
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done
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[ -z "${_UPDATE}" ] && {
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printf "%s\n" "Error: Either -i/--install or -u/--update flag must be used."
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printf "%s\n" "See -h/--help for more info."
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exit 1
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}
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printf "%s\n" \
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"CONFIG PATH: ${_CONFIG_PATH}
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$(if [ "${_NO_BACKUP}" = "true" ]; then
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printf "SKIPPING CONFIG BACKUP !\n"
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else
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printf "%s\n" "CONFIG BACKUP PATH: ${_BACKUP_PATH}"
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fi)
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CURRENT SHELL: ${_CURRENT_SHELL}
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"
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return 0
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}
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main() {
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[ $# = 0 ] && _usage
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_check_install_dependencies
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_setup_arguments "${@}"
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_setup_packer
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_copy_config
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_setup_terminal_shell
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# install all plugins + compile them
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if _NVIM="$(command -v nvim)"; then
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if _check_nvim_version; then
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printf "\n%s\n" "=> Neovim will open with some errors, just press enter" && sleep 1
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"${_NVIM}" +PackerSync
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else
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printf "Error: Neovim is installed, but version is lower than 0.5.x, install Neovim >= 5.x and then run the below command.\n"
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printf " nvim +PackerSync\n"
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fi
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else
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printf "Error: Neovim is not installed, install Neovim >= 5.x and then run the below command\n"
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printf " nvim +PackerSync\n"
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exit 1
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fi
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}
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main "${@}"
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