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refactor(webinstall): Reprompt after invalid input instead of exiting
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Signed-off-by: Hendrik Hübner  <117831077+HendrikHuebner@users.noreply.github.com>
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@HendrikHuebner
HendrikHuebner committed Apr 23, 2024
1 parent 3da3f85 commit 10ab637
Showing 1 changed file with 75 additions and 108 deletions.
183 changes: 75 additions & 108 deletions tools/webinstall/install.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -199,6 +199,27 @@ get_user_response() {
_RETVAL="$_gur_read_answer"
}

# prompt_user_yes_no asks the user a question which must be answered with yes or no. Returns a boolean value.
# $1: question
# $2: default answer
# Returns:
# _RETVAL: true for "yes", false for "no"
prompt_user_yes_no() {
while true;
do
get_user_response "$1" "$2"
_answer="$_RETVAL"

if printf "%s" "$_answer" | "$GREP" -q -E "$_NO_ANS"; then
return 1
elif printf "%s" "$_answer" | "$GREP" -q -E "$_YES_ANS"; then
return 0
else
printf "Invalid input. Please try again or exit with Ctrl+C\n"
fi
done
}

# do_cmd runs a command and asks the user if they want to retry with root
# if it fails
# $@: command
Expand All @@ -217,16 +238,9 @@ do_cmd() {
# Inform the user that the command failed
say "command failed: $*"

# Ask the user if they want to retry with root
get_user_response "do you want to retry with root? [y/N]: " "n"
_answer="$_RETVAL"

# Retry with root if the user wants to, otherwise exit
# with the return value of the command
if printf "%s" "$_answer" | "$GREP" -q -E "$_NO_ANS"; then
exit "$_cmd_retval"
elif printf "%s" "$_answer" | "$GREP" -q -E "$_YES_ANS"; then

if prompt_user_yes_no "do you want to retry with root? [y/N]: " "n"; then
# Check if we have a tty and run with it if we do,
# otherwise exit with an error
# This is because sudo requires a tty to input the password
Expand All @@ -237,7 +251,7 @@ do_cmd() {
err "fatal: cannot retry with root without a tty."
fi
else
err "error: choose either yes or no."
exit "$_cmd_retval"
fi
fi
}
Expand Down Expand Up @@ -1050,16 +1064,13 @@ install_linux_gnu() {
"tee /etc/apt/sources.list.d/kraftkit.list" \
)

get_user_response "install recommended dependencies? [y/N]: " "n"
_idd_answer="$_RETVAL"

_idd_recommended=""
if printf "%s" "$_idd_answer" | "$GREP" -q -E "$_NO_ANS_DEFAULT"; then
_idd_recommended="--install-recommends"
elif printf "%s" "$_idd_answer" | "$GREP" -q -E "$_YES_ANS"; then

if prompt_user_yes_no "install recommended dependencies? [y/N]: " "n"; then
_idd_recommended="--no-install-recommends"
else
err "fatal: choose either yes or no."
_idd_recommended="--install-recommends"
fi

do_cmd "$_ilg_deb_cmd"
Expand Down Expand Up @@ -1173,39 +1184,23 @@ install_linux_manual() {
"[y/N]: " \
)

get_user_response "$_ill_prompt_msg" "n"
_ill_answer="$_RETVAL"

if printf "%s" "$_ill_answer" | "$GREP" -q -E "$_NO_ANS_DEFAULT"; then
err "fatal: kraft binary already installed."
elif printf "%s" "$_ill_answer" | "$GREP" -q -E "$_YES_ANS"; then
if prompt_user_yes_no "$_ill_prompt_msg" "n"; then
PREFIX="$($DIRNAME "$_ill_kraft_path")"
else
err "fatal: choose either yes or no."
err "fatal: kraft binary already installed."
fi
else
get_user_response "change the install prefix? [$PREFIX] [y/N]: " "n"
_ill_answer="$_RETVAL"

if printf "%s" "$_ill_answer" | "$GREP" -q -E "$_NO_ANS_DEFAULT"; then
:
elif printf "%s" "$_ill_answer" | "$GREP" -q -E "$_YES_ANS"; then
if prompt_user_yes_no "change the install prefix? [$PREFIX] [y/N]: " "n"; then
get_user_response "what should the prefix be? [$PREFIX]: " "$PREFIX"
PREFIX="$_RETVAL"
else
err "fatal: choose either yes or no."
fi

if [ ! -d "$PREFIX" ]; then
get_user_response "prefix does not exist, create? [y/N]: " "n"
_ill_answer="$_RETVAL"

if printf "%s" "$_ill_answer" | "$GREP" -q -E "$_NO_ANS_DEFAULT"; then
err "fatal: prefix does not exist."
elif printf "%s" "$_ill_answer" | "$GREP" -q -E "$_YES_ANS"; then
if prompt_user_yes_no "prefix does not exist, create? [y/N]: " "n"; then
do_cmd "$MKDIR -p $PREFIX"
else
err "fatal: choose either yes or no."
err "fatal: prefix does not exist."
fi
fi
fi
Expand Down Expand Up @@ -1276,39 +1271,22 @@ install_darwin_manual() {
"[y/N]: " \
)

get_user_response "$_idr_prompt_msg" "n"
_idr_answer="$_RETVAL"

if printf "%s" "$_idr_answer" | "$GREP" -q -E "$_NO_ANS_DEFAULT"; then
err "fatal: kraft binary already installed."
elif printf "%s" "$_idr_answer" | "$GREP" -q -E "$_YES_ANS"; then
if prompt_user_yes_no "$_idr_prompt_msg" "n"; then
PREFIX="$($DIRNAME "$_idr_kraft_path")"
else
err "fatal: choose either yes or no."
err "fatal: kraft binary already installed."
fi
else
get_user_response "change the install prefix? [$PREFIX] [y/N]: " "n"
_idr_answer="$_RETVAL"

if printf "%s" "$_idr_answer" | "$GREP" -q -E "$_NO_ANS_DEFAULT"; then
:
elif printf "%s" "$_idr_answer" | "$GREP" -q -E "$_YES_ANS"; then
if prompt_user_yes_no "change the install prefix? [$PREFIX] [y/N]: " "n"; then
get_user_response "what should the prefix be? [$PREFIX]: " "$PREFIX"
PREFIX="$_RETVAL"
else
err "fatal: choose either yes or no."
fi

if [ ! -d "$PREFIX" ]; then
get_user_response "prefix does not exist, create? [y/N]: " "n"
_idr_answer="$_RETVAL"

if printf "%s" "$_idr_answer" | "$GREP" -q -E "$_NO_ANS_DEFAULT"; then
err "fatal: prefix does not exist."
elif printf "%s" "$_idr_answer" | "$GREP" -q -E "$_YES_ANS"; then
if prompt_user_yes_no "prefix does not exist, create? [y/N]: " "n"; then
do_cmd "$MKDIR -p $PREFIX"
else
err "fatal: choose either yes or no."
err "fatal: prefix does not exist."
fi
fi
fi
Expand Down Expand Up @@ -1446,16 +1424,13 @@ install_dependencies_gnu() {
do_cmd "$APT --allow-unauthenticated update"

say_debug "Installing dependencies: $_idd_list"
get_user_response "install recommended dependencies? [y/N]: " "n"
_idd_answer="$_RETVAL"

_idd_recommended=""
if printf "%s" "$_idd_answer" | "$GREP" -q -E "$_NO_ANS_DEFAULT"; then
_idd_recommended="--install-recommends"
elif printf "%s" "$_idd_answer" | "$GREP" -q -E "$_YES_ANS"; then
if prompt_user_yes_no "install recommended dependencies? [y/N]: " "n"; then
_idd_recommended="--no-install-recommends"
else
err "fatal: choose either yes or no."
_idd_recommended="--install-recommends"

fi

do_cmd "$APT install $_idd_recommended -y $_idd_list"
Expand Down Expand Up @@ -1539,52 +1514,49 @@ install_completions() {

_inc_arch="$1"

get_user_response "Do you want to install command completions? [Y/n]: " "y"
_inc_answer="$_RETVAL"

if printf "%s" "$_inc_answer" | "$GREP" -q -E "$_NO_ANS"; then
if ! prompt_user_yes_no "Do you want to install command completions? [Y/n]: " "y"; then
return 0
elif printf "%s" "$_inc_answer" | "$GREP" -q -E "$_YES_ANS_DEFAULT"; then
:
else
err "fatal: choose either yes or no."
fi

get_user_response "What shell are you using? [bash/zsh/fish]: " ""
_inc_answer=$(printf "%s" "$_RETVAL" | "$TR" '[:upper:]' '[:lower:]')

# Check if the shell is supported
_inc_shell=""
_inc_config_file=""
_inc_kraft_config_file=""
if printf "%s" "$_inc_answer" | "$GREP" -q -E "bash"; then
_inc_shell="bash"
_inc_config_file="$HOME/.bashrc"
_inc_kraft_config_file="$HOME/.bash_kraft_completion"
elif printf "%s" "$_inc_answer" | "$GREP" -q -E "zsh"; then
_inc_shell="zsh"
_inc_config_file="$HOME/.zshrc"
_inc_kraft_config_file="$HOME/.zsh_kraft_completion"
elif printf "%s" "$_inc_answer" | "$GREP" -q -E "fish"; then
_inc_shell="fish"
_inc_config_file="$HOME/.config/fish/config.fish"
_inc_kraft_config_file="$HOME/.config/fish/kraft_completion.fish"
elif [ -z "$_inc_answer" ]; then
err "fatal: no shell provided."
else
err "fatal: unsupported shell: $_inc_answer"
fi

if [ -f "$_inc_kraft_config_file" ]; then
get_user_response "kraft completions already exist, overwrite? [Y/n]: " "y"
_inc_answer="$_RETVAL"
# Prompt user until they provide a valid answer or exit
while true;
do
get_user_response "What shell are you using? [bash/zsh/fish]: " ""
_inc_answer=$(printf "%s" "$_RETVAL" | "$TR" '[:upper:]' '[:lower:]')

if printf "%s" "$_inc_answer" | "$GREP" -q -E "bash"; then
_inc_shell="bash"
_inc_config_file="$HOME/.bashrc"
_inc_kraft_config_file="$HOME/.bash_kraft_completion"
break

elif printf "%s" "$_inc_answer" | "$GREP" -q -E "zsh"; then
_inc_shell="zsh"
_inc_config_file="$HOME/.zshrc"
_inc_kraft_config_file="$HOME/.zsh_kraft_completion"
break

elif printf "%s" "$_inc_answer" | "$GREP" -q -E "fish"; then
_inc_shell="fish"
_inc_config_file="$HOME/.config/fish/config.fish"
_inc_kraft_config_file="$HOME/.config/fish/kraft_completion.fish"
break

elif [ -z "$_inc_answer" ]; then
printf "No shell provided. Please try again or exit with Ctrl+C\n"
else
printf "Shell %s not supported. Please try again or exit with Ctrl+C\n" "$_inc_answer"
fi
done

if printf "%s" "$_inc_answer" | "$GREP" -q -E "$_YES_ANS_DEFAULT"; then
:
elif printf "%s" "$_inc_answer" | "$GREP" -q -E "$_NO_ANS"; then
if [ -f "$_inc_kraft_config_file" ]; then
if ! prompt_user_yes_no "kraft completions already exist, overwrite? [Y/n]: " "y"; then
return 0
else
err "fatal: choose either yes or no."
fi
fi

Expand Down Expand Up @@ -1655,17 +1627,12 @@ arg_parse() {
# Returns:
# _RETVAL: whether to install automatically: n or empty
check_autoinstall() {
_cai_answer=""
get_user_response "install kraftkit using package manager? [Y/n]: " "y"
_cai_answer="$_RETVAL"

_cai_auto_install=""
if printf "%s" "$_cai_answer" | "$GREP" -q -E "$_NO_ANS"; then
_cai_auto_install="n"
elif printf "%s" "$_cai_answer" | "$GREP" -q -E "$_YES_ANS_DEFAULT"; then

if prompt_user_yes_no "install kraftkit using package manager? [Y/n]: " "y"; then
say "installing kraftkit via package manager..."
else
err "fatal: choose either yes or no."
_cai_auto_install="n"
fi

_RETVAL="$_cai_auto_install"
Expand Down

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