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Customizing the shell prompt to display the current Node.js version #3426

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Customizing the shell prompt to display the current Node.js version #3426

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28e72a8
Update install.sh
srinivas365 Sep 16, 2024
a5cf57a
Update install.sh
srinivas365 Sep 16, 2024
2333878
Update install.sh
srinivas365 Sep 16, 2024
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Update install.sh
srinivas365 Sep 16, 2024
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Update install.sh
srinivas365 Sep 16, 2024
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Update install.sh
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Update install.sh
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Update install.sh
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132 changes: 98 additions & 34 deletions install.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -366,115 +366,179 @@ nvm_check_global_modules() {
fi
}

# Function to append code to the specified file
append_to_file() {
local file=$1
local code=$2
echo "$code" >> "$file"
echo "code added to the file"
}

nvm_do_install() {
if [ -n "${NVM_DIR-}" ] && ! [ -d "${NVM_DIR}" ]; then
if [ -e "${NVM_DIR}" ]; then
nvm_echo >&2 "File \"${NVM_DIR}\" has the same name as installation directory."
echo >&2 "File \"${NVM_DIR}\" has the same name as installation directory."
exit 1
fi

if [ "${NVM_DIR}" = "$(nvm_default_install_dir)" ]; then
mkdir "${NVM_DIR}"
else
nvm_echo >&2 "You have \$NVM_DIR set to \"${NVM_DIR}\", but that directory does not exist. Check your profile files and environment."
echo >&2 "You have \$NVM_DIR set to \"${NVM_DIR}\", but that directory does not exist. Check your profile files and environment."
exit 1
fi
fi

# Disable the optional which check, https://www.shellcheck.net/wiki/SC2230
# shellcheck disable=SC2230
if nvm_has xcode-select && [ "$(xcode-select -p >/dev/null 2>/dev/null ; echo $?)" = '2' ] && [ "$(which git)" = '/usr/bin/git' ] && [ "$(which curl)" = '/usr/bin/curl' ]; then
nvm_echo >&2 'You may be on a Mac, and need to install the Xcode Command Line Developer Tools.'
if command -v xcode-select >/dev/null 2>&1 && [ "$(xcode-select -p >/dev/null 2>/dev/null ; echo $?)" = '2' ] && [ "$(command -v git)" = '/usr/bin/git' ] && [ "$(command -v curl)" = '/usr/bin/curl' ]; then
echo >&2 'You may be on a Mac, and need to install the Xcode Command Line Developer Tools.'
# shellcheck disable=SC2016
nvm_echo >&2 'If so, run `xcode-select --install` and try again. If not, please report this!'
echo >&2 'If so, run `xcode-select --install` and try again. If not, please report this!'
exit 1
fi

if [ -z "${METHOD}" ]; then
# Autodetect install method
if nvm_has git; then
if command -v git >/dev/null 2>&1; then
install_nvm_from_git
elif nvm_has curl || nvm_has wget; then
elif command -v curl >/dev/null 2>&1 || command -v wget >/dev/null 2>&1; then
install_nvm_as_script
else
nvm_echo >&2 'You need git, curl, or wget to install nvm'
echo >&2 'You need git, curl, or wget to install nvm'
exit 1
fi
elif [ "${METHOD}" = 'git' ]; then
if ! nvm_has git; then
nvm_echo >&2 "You need git to install nvm"
if ! command -v git >/dev/null 2>&1; then
echo >&2 "You need git to install nvm"
exit 1
fi
install_nvm_from_git
elif [ "${METHOD}" = 'script' ]; then
if ! nvm_has curl && ! nvm_has wget; then
nvm_echo >&2 "You need curl or wget to install nvm"
if ! command -v curl >/dev/null 2>&1 && ! command -v wget >/dev/null 2>&1; then
echo >&2 "You need curl or wget to install nvm"
exit 1
fi
install_nvm_as_script
else
nvm_echo >&2 "The environment variable \$METHOD is set to \"${METHOD}\", which is not recognized as a valid installation method."
echo >&2 "The environment variable \$METHOD is set to \"${METHOD}\", which is not recognized as a valid installation method."
exit 1
fi

nvm_echo
echo

local NVM_PROFILE
NVM_PROFILE="$(nvm_detect_profile)"
local PROFILE_INSTALL_DIR
PROFILE_INSTALL_DIR="$(nvm_install_dir | command sed "s:^$HOME:\$HOME:")"
PROFILE_INSTALL_DIR="$(nvm_install_dir | sed "s:^$HOME:\$HOME:")"

SOURCE_STR="\\nexport NVM_DIR=\"${PROFILE_INSTALL_DIR}\"\\n[ -s \"\$NVM_DIR/nvm.sh\" ] && \\. \"\$NVM_DIR/nvm.sh\" # This loads nvm\\n"

# shellcheck disable=SC2016
COMPLETION_STR='[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" # This loads nvm bash_completion\n'
BASH_OR_ZSH=false

if [ -z "${NVM_PROFILE-}" ] ; then
if [ -z "${NVM_PROFILE-}" ]; then
local TRIED_PROFILE
if [ -n "${PROFILE}" ]; then
TRIED_PROFILE="${NVM_PROFILE} (as defined in \$PROFILE), "
fi
nvm_echo "=> Profile not found. Tried ${TRIED_PROFILE-}~/.bashrc, ~/.bash_profile, ~/.zprofile, ~/.zshrc, and ~/.profile."
nvm_echo "=> Create one of them and run this script again"
nvm_echo " OR"
nvm_echo "=> Append the following lines to the correct file yourself:"
echo "=> Profile not found. Tried ${TRIED_PROFILE-}~/.bashrc, ~/.bash_profile, ~/.zprofile, ~/.zshrc, and ~/.profile."
echo "=> Create one of them and run this script again"
echo " OR"
echo "=> Append the following lines to the correct file yourself:"
command printf "${SOURCE_STR}"
nvm_echo
echo
else
if nvm_profile_is_bash_or_zsh "${NVM_PROFILE-}"; then
BASH_OR_ZSH=true
fi
if ! command grep -qc '/nvm.sh' "$NVM_PROFILE"; then
nvm_echo "=> Appending nvm source string to $NVM_PROFILE"
if ! grep -qc '/nvm.sh' "$NVM_PROFILE"; then
echo "=> Appending nvm source string to $NVM_PROFILE"
command printf "${SOURCE_STR}" >> "$NVM_PROFILE"
else
nvm_echo "=> nvm source string already in ${NVM_PROFILE}"
echo "=> nvm source string already in ${NVM_PROFILE}"
fi
# shellcheck disable=SC2016
if ${BASH_OR_ZSH} && ! command grep -qc '$NVM_DIR/bash_completion' "$NVM_PROFILE"; then
nvm_echo "=> Appending bash_completion source string to $NVM_PROFILE"
if ${BASH_OR_ZSH} && ! grep -qc '$NVM_DIR/bash_completion' "$NVM_PROFILE"; then
echo "=> Appending bash_completion source string to $NVM_PROFILE"
command printf "$COMPLETION_STR" >> "$NVM_PROFILE"
else
nvm_echo "=> bash_completion source string already in ${NVM_PROFILE}"
echo "=> bash_completion source string already in ${NVM_PROFILE}"
fi
fi
if ${BASH_OR_ZSH} && [ -z "${NVM_PROFILE-}" ] ; then
nvm_echo "=> Please also append the following lines to the if you are using bash/zsh shell:"

if ${BASH_OR_ZSH} && [ -z "${NVM_PROFILE-}" ]; then
echo "=> Please also append the following lines to the if you are using bash/zsh shell:"
command printf "${COMPLETION_STR}"
fi

# Define the code to add to the shell configuration file
CODE=$(cat <<'EOF'
# Function to get current node version
get_node_version() {
if command -v node >/dev/null 2>&1; then
echo "(node $(node -v))"
fi
}

# Update prompt based on the shell (bash or zsh)
if [ "$SHELL" = "/bin/bash" ] || [ "$SHELL" = "/usr/bin/bash" ]; then
# For bash
echo "Setting up for bash..."

# Add dynamic prompt setup for bash
PROMPT_COMMAND='PS1="\u@\h \w \$(get_node_version)$ "'
export PROMPT_COMMAND

elif [ "$SHELL" = "/bin/zsh" ] || [ "$SHELL" = "/usr/bin/zsh" ]; then
# For zsh
echo "Setting up for zsh..."

# Set the prompt dynamically in zsh
precmd() {
PS1='%n@%m %~ $(get_node_version)$ '
}
export -f precmd

# Enable prompt substitution in zsh
setopt promptsubst
fi
EOF
)

# Determine the shell configuration file based on the current shell
case "$SHELL" in
*/bash)
CONFIG_FILE="$HOME/.bashrc"
BASH_OR_ZSH=true
append_to_file "$CONFIG_FILE" "$CODE"
;;
*/zsh)
CONFIG_FILE="$HOME/.zshrc"
BASH_OR_ZSH=true
append_to_file "$CONFIG_FILE" "$CODE"
;;
*/ash)
CONFIG_FILE="$HOME/.profile" # or another appropriate file for ash
append_to_file "$CONFIG_FILE" "$CODE"
;;
*)
echo "Unsupported shell to add node version to the shell: $SHELL"
;;
esac

# Source nvm
# shellcheck source=/dev/null
\. "$(nvm_install_dir)/nvm.sh"
. "$(nvm_install_dir)/nvm.sh"

nvm_check_global_modules

nvm_install_node

nvm_reset

nvm_echo "=> Close and reopen your terminal to start using nvm or run the following to use it now:"
echo "=> Close and reopen your terminal to start using nvm or run the following to use it now:"
command printf "${SOURCE_STR}"
if ${BASH_OR_ZSH} ; then
if ${BASH_OR_ZSH}; then
command printf "${COMPLETION_STR}"
fi
}
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