bin: track bunch of scripts

1 files changed, 100 insertions, 0 deletions

diff --git a/.local/bin/template.sh b/.local/bin/template.sh
new file mode 100644
index 0000000..4afcb5f
--- /dev/null
+++ b/.local/bin/template.sh
@@ -0,0 +1,100 @@
+#!/usr/bin/env bash
+# https://betterdev.blog/minimal-safe-bash-script-template/
+
+set -Eeuo pipefail
+
+cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1
+
+trap cleanup SIGINT SIGTERM ERR EXIT
+
+usage() {
+  cat <<EOF
+Usage: $(basename "$0") [-h] [-v] [-f] -p param_value arg1 [arg2...]
+
+Script description here.
+
+Available options:
+
+-h, --help      Print this help and exit
+-v, --verbose   Print script debug info
+-f, --flag      Some flag description
+-p, --param     Some param description
+EOF
+  exit
+}
+
+cleanup() {
+  trap - SIGINT SIGTERM ERR EXIT
+  # script cleanup here
+}
+
+setup_colors() {
+  if [[ -t 2 ]] && [[ -z "${NO_COLOR-}" ]] && [[ "${TERM-}" != "dumb" ]]; then
+    NOCOLOR='\033[0m' RED='\033[0;31m' GREEN='\033[0;32m' ORANGE='\033[0;33m' BLUE='\033[0;34m' PURPLE='\033[0;35m' CYAN='\033[0;36m' YELLOW='\033[1;33m'
+  else
+    NOCOLOR='' RED='' GREEN='' ORANGE='' BLUE='' PURPLE='' CYAN='' YELLOW=''
+  fi
+}
+
+msg() {
+  echo >&2 -e "${1-}"
+}
+
+die() {
+  local msg=$1
+  local code=${2-1} # default exit status 1
+  msg "$msg"
+  exit "$code"
+}
+
+parse_params() {
+  # default values of variables set from params
+  flag=0
+  param=''
+
+  while :; do
+    case "${1-}" in
+    -h | --help)
+      usage
+      ;;
+    -v | --verbose)
+      set -x
+      ;;
+    --no-color)
+      NO_COLOR=1
+      ;;
+    -f | --flag) # example flag
+      flag=1
+      ;;
+    -p | --param) # example named parameter
+      param="${2-}"
+      shift
+      ;;
+    -?*)
+      die "Unknown option: $1"
+      ;;
+    *)
+      break
+      ;;
+    esac
+    shift
+  done
+
+  args=("$@")
+
+  # check required params and arguments
+  [[ -z "${param-}" ]] && die "Missing required parameter: param"
+  [[ ${#args[@]} -eq 0 ]] && die "Missing script arguments"
+
+  return 0
+}
+
+parse_params "$@"
+setup_colors
+
+# script logic here
+
+msg "${RED}Read parameters:${NOCOLOR}"
+msg "- flag: ${flag}"
+msg "- param: ${param}"
+msg "- arguments: ${args[*]-}"