1 files changed, 98 insertions, 0 deletions

diff --git a/bash-lib.sh b/bash-lib.sh
new file mode 100644
index 0000000..83819df
--- /dev/null
+++ b/bash-lib.sh
@@ -0,0 +1,98 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+IFS=$'\n\t'
+
+shopt -s nullglob
+
+tput() {
+        # If tput fails, it just means less colors
+        command tput "$@" 2> /dev/null || true
+}
+
+NORMAL="$(tput sgr0)"
+readonly NORMAL
+BOLD="$(tput bold)"
+readonly BOLD
+
+RED="$(tput setaf 1)"
+readonly RED
+GREEN="$(tput setaf 2)"
+readonly GREEN
+YELLOW="$(tput setaf 3)"
+readonly YELLOW
+BLUE="$(tput setaf 4)"
+readonly BLUE
+PURPLE="$(tput setaf 5)"
+readonly PURPLE
+CYAN="$(tput setaf 6)"
+readonly CYAN
+WHITE="$(tput setaf 7)"
+readonly WHITE
+
+readonly BASH_LIB_DEBUG_VAR="${BASH_LIB_NAME:-BASH}_DEBUG"
+
+is_debug() {
+        [ "${!BASH_LIB_DEBUG_VAR:-0}" -ge 1 ]
+}
+
+is_trace() {
+        [ "${!BASH_LIB_DEBUG_VAR:-0}" -ge 2 ]
+}
+
+declare -a VERBOSE_ARG
+if is_debug; then
+        VERBOSE_ARG=("--verbose")
+else
+        VERBOSE_ARG=()
+fi
+readonly VERBOSE_ARG
+
+echoe() {
+        IFS=" " echo "$@" >&2
+}
+
+log() {
+        local level="$1"
+        local color="$2"
+        local message="$3"
+        shift 3
+        local rest="$@"
+
+        echoe "${BOLD}${color}${level} ${WHITE}${message}${NORMAL}" "${rest[@]}"
+}
+
+trace() {
+        if is_trace; then
+                log "Trace:  " "${PURPLE}" "$@"
+        fi
+}
+
+debug() {
+        if is_debug; then
+                log "Debug:  " "${GREEN}" "$@"
+        fi
+}
+
+info() {
+        log "Info:   " "${CYAN}" "$@"
+}
+
+warn() {
+        log "Warning:" "${YELLOW}" "$@"
+}
+
+error() {
+        log "Error:  " "${RED}" "$@"
+}
+
+critical() {
+        error "$@"
+        # Useful for triggering the error trap system
+        false
+}
+
+fatal() {
+        error "$@"
+        exit 1
+}