resh/scripts/install.sh

#!/usr/bin/env bash

set -euo pipefail

echo
echo "Checking your system ..."

# /usr/bin/zsh -> zsh
login_shell=$(echo "$SHELL" | rev | cut -d'/' -f1 | rev)

if [ "$login_shell" != bash ] && [ "$login_shell" != zsh ]; then
    echo "ERROR: Unsupported/unknown login shell: $login_shell"
    exit 1
fi
echo " * Login shell: $login_shell - OK"


# check like we are not running bash
bash_version=$(bash -c 'echo ${BASH_VERSION}')
bash_version_major=$(bash -c 'echo ${BASH_VERSINFO[0]}')
bash_version_minor=$(bash -c 'echo ${BASH_VERSINFO[1]}')
bash_too_old=""
if [ "$bash_version_major" -lt 3 ]; then 
    bash_too_old=true
elif [ "$bash_version_major" -eq 4 ] && [ "$bash_version_minor" -lt 3 ]; then 
    bash_too_old=true
fi

if [ "$bash_too_old" = true ]; then
    echo " * Bash version: $bash_version - UNSUPPORTED!"
    if [ "$login_shell" = bash ]; then
        echo "   > Your bash version is old."
        echo "   > Bash is also your login shell."
        echo "   > Updating to bash 4.3+ is strongly RECOMMENDED!"
    else
        echo "   > Your bash version is old"
        echo "   > Bash is not your login shell so it should not be an issue."
        echo "   > Updating to bash 4.3+ is recommended."
    fi
else
    echo " * Bash version: $bash_version - OK"
fi


if ! zsh --version >/dev/null 2>&1; then
    echo " * Zsh version: ? - not installed!"
else
    zsh_version=$(zsh -c 'echo ${ZSH_VERSION}')
    zsh_version_major=$(echo "$zsh_version" | cut -d'.' -f1)
    if [ "$zsh_version_major" -lt 5 ]; then 
        echo " * Zsh version: $zsh_version - UNSUPPORTED!"
        if [ "$login_shell" = zsh ]; then
            echo "   > Your zsh version is old."
            echo "   > Zsh is also your login shell."
            echo "   > Updating to Zsh 5.0+ is strongly RECOMMENDED!"
        else
            echo "   > Your zsh version is old"
            echo "   > Zsh is not your login shell so it should not be an issue."
            echo "   > Updating to zsh 5.0+ is recommended."
        fi
    else
        echo " * Zsh version: $zsh_version - OK"
    fi
fi


# echo 
# echo "Continue with installation? (Any key to CONTINUE / Ctrl+C to ABORT)"
# # shellcheck disable=2034
# read -r x

echo 
echo "Creating directories ..."

mkdir_if_not_exists() {
    if [ ! -d "$1" ]; then
        mkdir "$1" 
    fi
}

mkdir_if_not_exists ~/.resh
mkdir_if_not_exists ~/.resh/bin
mkdir_if_not_exists ~/.resh/bash_completion.d
mkdir_if_not_exists ~/.resh/zsh_completion.d
mkdir_if_not_exists ~/.config

echo "Copying files ..."
cp -f submodules/bash-preexec/bash-preexec.sh ~/.bash-preexec.sh
cp -f submodules/bash-zsh-compat-widgets/bindfunc.sh ~/.resh/bindfunc.sh

cp -f conf/config.toml ~/.config/resh.toml

cp -f scripts/shellrc.sh ~/.resh/shellrc
cp -f scripts/reshctl.sh scripts/widgets.sh scripts/hooks.sh scripts/util.sh ~/.resh/

echo "Generating completions ..."
bin/resh-control completion bash > ~/.resh/bash_completion.d/_reshctl
bin/resh-control completion zsh > ~/.resh/zsh_completion.d/_reshctl

echo "Copying more files ..."
cp -f scripts/uuid.sh ~/.resh/bin/resh-uuid
cp -f bin/* ~/.resh/bin/
cp -f scripts/resh-evaluate-plot.py ~/.resh/bin/
cp -fr data/sanitizer ~/.resh/sanitizer_data

# backward compatibility: We have a new location for resh history file 
[ ! -f ~/.resh/history.json ] || mv ~/.resh/history.json ~/.resh_history.json 

echo "Finishing up ..."
# Adding resh shellrc to .bashrc ...
if [ ! -f ~/.bashrc ]; then
    touch ~/.bashrc
fi
grep -q '[[ -f ~/.resh/shellrc ]] && source ~/.resh/shellrc' ~/.bashrc ||\
	echo -e '\n[[ -f ~/.resh/shellrc ]] && source ~/.resh/shellrc' >> ~/.bashrc
# Adding bash-preexec to .bashrc ...
grep -q '[[ -f ~/.bash-preexec.sh ]] && source ~/.bash-preexec.sh' ~/.bashrc ||\
	echo -e '\n[[ -f ~/.bash-preexec.sh ]] && source ~/.bash-preexec.sh' >> ~/.bashrc
# Adding resh shellrc to .zshrc ...
if [ -f ~/.zshrc ]; then
    grep -q '[ -f ~/.resh/shellrc ] && source ~/.resh/shellrc' ~/.zshrc ||\
        echo -e '\n[ -f ~/.resh/shellrc ] && source ~/.resh/shellrc' >> ~/.zshrc
fi

# Deleting zsh completion cache - for future use
# [ ! -e ~/.zcompdump ] || rm ~/.zcompdump

# Final touch
touch ~/.resh_history.json

# Restarting resh daemon ...
if [ -f ~/.resh/resh.pid ]; then
    kill -SIGTERM "$(cat ~/.resh/resh.pid)" || true
    rm ~/.resh/resh.pid
else
    pkill -SIGTERM "resh-daemon" || true
fi
nohup resh-daemon >/dev/null 2>&1 & disown

# Generating resh-uuid ...
[ -e ~/.resh/resh-uuid ] \
	|| cat /proc/sys/kernel/random/uuid > ~/.resh/resh-uuid 2>/dev/null \
	|| scripts/uuid.sh > ~/.resh/resh-uuid 2>/dev/null 

echo " 
##########################################################
#                                                        #
#    SUCCESS - thank you for trying out this project!    #
#                                                        #
##########################################################

 WARNING 
    It's recommended to RESTART ALL OPEN TERMINAL WINDOWS (or reload your rc files)
 
 HISTORY
    Your resh history will be recorded to '~/.resh_history.json'
    You can look at it using e.g. 'tail -f ~/.resh_history.json | jq' (you might need to install jq)
 
 SANITIZATION
    History can be sanitized by running '... to be included'
    This will create sanitized version of your history

 GRAPHS
    You can get some graphs of your history by running '... to be included'
 
 ISSUES
    Please report issues to: https://github.com/curusarn/resh/issues
 
 UNINSTALL
     You can uninstall this at any time by running 'rm -rf ~/.resh/'
     You won't lose any collected history by removing '~/.resh/' directory

"
#    CONTACT
#        Please give me some contact info using this form: https://forms.gle/227SoyJ5c2iteKt98