1779513677

References/Quick-and-Dirty-Methods-Bash.md

@@ -12,6 +12,65 @@ RESET='\033[0m' # No Color (RESET)
 # usage echo -e "$PINKpinktext here$RESET"
 ```
 
+standard peak safety with error handling for shell scripts
+    shell script header to exit on error, failed piping, or unset variable while allowing err trap and custom trapping for error
+```bash
+#!/bin/bash
+# set safety optinonz
+set -o errexit # fail on error
+set -o errtrace # run trace on error
+set -o pipefail # fail on pipe fail
+set -o nounset # fail on unset var
+
+# save here to use in error_handle function
+num_of_args="$#"
+all_args="$@"
+
+# Define the cleanup function
+error_handle() {
+    # CRITICAL: Capture the exit status code before ANY other command runs
+    local exit_code=$?
+    local script_path="$(realpath $0)"
+    local hr='===================================================='
+    echo
+    echo $hr
+    echo -e "🚨 \033[0;31m FATAL ERROR DETECTED \033[0m"
+    echo $hr
+    echo "-> Script            : $0"
+    echo "-> Num Script Args   : $num_of_args"
+    echo "-> Script Args       : $all_args"
+    echo "-> Shell             : $SHELL"
+    echo "-> Script Path       : $script_path"
+    echo "-> Script (full)     : $SHELL $script_path $all_args"
+    echo "-> User              : $USER"
+    echo "-> Working Directory : $PWD"
+    echo "-> Failed Command    : $BASH_COMMAND"
+    echo "-> Line Number       : $LINENO"
+    echo "-> Exit Status       : $exit_code"
+    echo "-> Seconds Elapsed   : $SECONDS"
+    echo "-> Date Failed       : $(date)"
+    # Generate a professional, clean stack traceback
+    echo "-> Stack Trace"
+    printf "\t" # to intent da stack trace
+    local frame=0
+        # Loop backwards through the function execution stack array
+    while caller $frame; do
+        printf "\t" # to indenet da stack trace
+        frame=$((frame + 1))
+    done
+
+    # closing niceties
+    echo
+    echo $hr
+    echo
+
+    # exit with last failcode
+    exit "$exit_code"
+}
+
+trap error_handle ERR
+```
+
 show every set variale and its value (one liner)
 ```bash
 for v in $(compgen -v); do echo "$v:$$v"; done

customscripts/debian-setup.sh

@@ -0,0 +1,77 @@
+#!/bin/bash
+set -euo pipefall
+
+# to give pass/fail output from da commmands
+## usage like checkcode $?
+checkcode () {
+    if [ -z "$1" ]; then
+        echo -e "\n\e[31mERROR!\033[0m chkcode missing return code paramater\n"
+        exit 1
+    else
+        retcode=$1
+    fi
+
+    if [ $retcode -ne 0 ]; then
+        echo -e "\t\e[31mERROR!\033[0m Response Code: $retcode"
+    else
+        echo -e "\t\e[1;32mOK!\e[0m"
+    fi
+}
+
+echo "apt: START"
+echo "apt: updating"
+sudo apt update &> /dev/null
+checkcode $?
+echo "apt: running dist-upgrade"
+sudo apt dist-upgrade -y &> /dev/null
+checkcode $?
+echo "apt: install packages"
+sudo apt install -y gawk curl wget git gh build-essential scrypt openssl argon2 qbittorrent xfce4 apache2 php php-cli php-bz2 php-crypt-gpg php-curl php-date php-db php-decimal php-doc php-email-validator php-enum php-facedetect &> /dev/null
+checkcode $?
+echo "apt: autoremoving"   
+sudo apt autoremove -y &> /dev/null
+checkcode $?
+echo "apt: FINISHED"
+
+echo "pyenv: START"
+echo "pyenv: installin"
+curl -fsSL https://pyenv.run | bash &> /dev/null
+checkcode $?
+echo "pyenv: adding exports to ~/.bashrc" 
+echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
+checkcode $?
+echo '[[ -d $PYENV_ROOT/bin ]] && export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
+checkcode $?
+echo 'eval "$(pyenv init - bash)"' >> ~/.bashrc
+checkcode $?
+echo "pyenv: sourcing to ~/.bashrc"
+source ~/.bashrc
+checkcode $?
+echo "pyenv: installing latest python3"
+pyenv install 3:latest &> /dev/null
+checkcode $?
+echo "pyenv: setting latest python3 as global"
+pyenv global 3:latest &> /dev/null
+checkcode $?
+echo "pyenv: FINISHED"
+
+echo "ble.sh: START"
+echo "ble.sh: changing directory to /tmp"
+cd /tmp
+checkcode $?
+echo "ble.sh: downloading"
+git clone --recursive --depth 1 --shallow-submodules --single-branch -b master https://github.com/akinomyoga/ble.sh.git &> /dev/null
+checkcode $?
+echo "ble.sh: building and installing"
+make -C ble.sh install PREFIX=~/.local &> /dev/null
+checkcode $?
+echo "ble.sh: setting up ~/.bashrc file"
+echo '# ble.sh' >> ~/.bashrc
+checkcode $?
+echo 'source -- ~/.local/share/blesh/ble.sh' >> ~/.bashrc
+checkcode $?
+echo 'ble.sh: sourcing ~/.bashrc'
+checkcode $?
+source ~/.bashrc
+checkcode $?
+echo "ble.sh: FINISH"