bashmsg: prompt support

bashcols.inc

@@ -1,6 +1,15 @@
-#!/bin/bash
+# vim: syntax=bash:
+
+reset_esc='\e[0m'
+
+# bgcol <color> <command>
+# Use the specified color as background
+function bgcol {
+	_bashcols_bgcol_conditionalsuffix=bg
+	"$@"
+	_bashcols_bgcol_conditionalsuffix=
+}
 
-eval "reset_esc=\"\\e[0m\""
 
 # applies the given color id, executes the command, then resets the color
 function colout() {
@@ -9,9 +18,13 @@ function colout() {
 		return
 	fi
 
-	local color=$1
+	local color="$1"
 	shift
-	tput setaf $color
+	if [[ -z $_bashcols_bgcol_conditionalsuffix ]]; then
+		tput setaf "$color"
+	else
+		tput setab "$color"
+	fi
 	"$@"
 	tput sgr0
 }
@@ -37,10 +50,10 @@ function defcol() {
 function dispcollist() {
 	local width=${1:-16}
 	local idx=0
-	for colid in `seq 1 256`; do
+	for colid in {1..256}; do
 		colout $colid printf "%3s " $colid
-		idx=$(($idx+1))	
+		let "idx++" || true
-		if [[ $(($idx % $width)) -eq 0 ]]; then
+		if ! (( $idx % $width )); then
 			printf "\n"
 		fi
 	done
@@ -49,24 +62,26 @@ function dispcollist() {
 function colthis {
 	local name="$1"
 	shift
-	eval "printf \"\${${name}_esc}$@$reset_esc\""
+	eval "printf \"%s\" \"\${${name}_esc${_bashcols_bgcol_conditionalsuffix}}$@$reset_esc\""
 }
 
 # default colors
-defcol red	1
+defcol red      1
-defcol green	2
+defcol green    2
-defcol brown	3
+defcol brown    3
-defcol blue	4
+defcol blue     4
-defcol magenta	5
+defcol magenta  5
-defcol cyan	6
+defcol cyan     6
-defcol white	7
+defcol white    7
-defcol grey	8
+defcol grey     8
-defcol redl	9
+defcol redl     9
-defcol greenl	10
+defcol greenl   10
-defcol yellow	11
+defcol yellow   11
-defcol bluel	12
+defcol bluel    12
-defcol magenta	13
+defcol magenta  13
-defcol cyanl	14
+defcol cyanl    14
-defcol whitel	15
+defcol whitel   15
-defcol black	16
+defcol black    16
+
+_bashlib_bashcols=1
 

bashmsg.inc

@@ -0,0 +1,150 @@
+#!/hint/bash
+
+# defcolor <color name> <function>
+function _bashmsg.defcolor {
+	local col=$1
+	local fn=$2
+	eval "function _bashmsg.${col} { ${fn} \${@}; }"
+}
+
+# dyncolor <type> <command>
+function _bashmsg.dyncolor {
+	local typevar="_bashmsg_col_${1}"
+	local col=${!typevar}
+	shift
+	_bashmsg.${col} "$@"
+}
+
+# def_bashcols_color <color name> <color id>
+function _bashmsg.def_bashcols_color {
+	if [[ -n $_bashlib_bashcols ]]; then
+		defcol "$1" "$2"
+		_bashmsg.defcolor "$1" "$1"
+	else
+		msg_error "${FUNCNAME}: bashcols is not loaded, color support unavailable"
+		return 1
+	fi
+}
+
+function _bashmsg.is_color_defined {
+	PATH= command -v _bashmsg.${1} >/dev/null
+}
+
+# prompt_generic <ydefault/ndefault> <prefix> <name> <message>
+function _bashmsg.prompt_generic {
+	local mode=$1
+	local pref=$2
+	local name=$3
+	local msg=$4
+
+	local msg_w_pref=$(printf '%s %s' "$(_bashmsg.dyncolor "_p_${name}" echo -n "${pref}")" "${msg}")
+	case "$mode" in
+		ydefault)
+			if [[ -n $ZSH_VERSION ]]; then
+				read -r "?${msg_w_pref} [Y/n] " CHOICE
+			else
+				read -r -p "${msg_w_pref} [Y/n] " CHOICE
+			fi
+			[[ -z $CHOICE || $CHOICE =~ ^[yY]$ ]]
+			;;
+		ndefault)
+			if [[ -n $ZSH_VERSION ]]; then
+				read -r "?${msg_w_pref} [y/N] " CHOICE
+			else
+				read -r -p "${msg_w_pref} [y/N] " CHOICE
+			fi
+			[[ $CHOICE =~ ^[yY]$ ]]
+			;;
+		*)
+			msg_error "Unknown prompt mode: ${mode}"
+			return 1
+			;;
+	esac
+}
+
+################# INITIALIZATION ################
+
+if [[ -z $_bashlib_bashcols ]]; then
+	function _bashmsg.nocolor { "$@"; }
+	_bashmsg.defcolor red      _bashmsg.nocolor
+	_bashmsg.defcolor green    _bashmsg.nocolor
+	_bashmsg.defcolor brown    _bashmsg.nocolor
+	_bashmsg.defcolor blue     _bashmsg.nocolor
+	_bashmsg.defcolor magenta  _bashmsg.nocolor
+	_bashmsg.defcolor cyan     _bashmsg.nocolor
+	_bashmsg.defcolor white    _bashmsg.nocolor
+	_bashmsg.defcolor grey     _bashmsg.nocolor
+	_bashmsg.defcolor redl     _bashmsg.nocolor
+	_bashmsg.defcolor greenl   _bashmsg.nocolor
+	_bashmsg.defcolor yellow   _bashmsg.nocolor
+	_bashmsg.defcolor bluel    _bashmsg.nocolor
+	_bashmsg.defcolor magenta  _bashmsg.nocolor
+	_bashmsg.defcolor cyanl    _bashmsg.nocolor
+	_bashmsg.defcolor whitel   _bashmsg.nocolor
+	_bashmsg.defcolor black    _bashmsg.nocolor
+else
+	_bashmsg.defcolor red      red
+	_bashmsg.defcolor green    green
+	_bashmsg.defcolor brown    brown
+	_bashmsg.defcolor blue     blue
+	_bashmsg.defcolor magenta  magenta
+	_bashmsg.defcolor cyan     cyan
+	_bashmsg.defcolor white    white
+	_bashmsg.defcolor grey     grey
+	_bashmsg.defcolor redl     redl
+	_bashmsg.defcolor greenl   greenl
+	_bashmsg.defcolor yellow   yellow
+	_bashmsg.defcolor bluel    bluel
+	_bashmsg.defcolor magenta  magenta
+	_bashmsg.defcolor cyanl    cyanl
+	_bashmsg.defcolor whitel   whitel
+	_bashmsg.defcolor black    black
+	_bashmsg.def_bashcols_color orange 202
+fi
+
+
+_bashmsg_col_info=grey
+_bashmsg_col_warn=orange
+_bashmsg_col_error=red
+
+function bashmsg.def_color {
+	_bashmsg.def_bashcols_color "$1" "$2"
+}
+
+# set_color type=<info|warn|error|...> <col>
+function bashmsg.set_color {
+	local colvar="_bashmsg_col_${1}"
+	if [[ -z ${!colvar} ]]; then
+		msg_error "${FUNCNAME}: unknown message type '${1}'"
+		return 1
+	fi
+	if ! _bashmsg.is_color_defined ${2}; then
+		msg_error "${FUNCNAME}: unknown color '${2}'"
+		return 1
+	fi
+	declare -g "${colvar}"=${2}
+}
+
+# def_type <name> <prefix> <default color>
+function bashmsg.def_type {
+	declare -g _bashmsg_col_${1}=${3}
+	eval "function msg_${1} { printf '%s %s\n' \"\$(_bashmsg.dyncolor ${1} echo -n \"${2}\")\" \"\${*}\" ; }"
+}
+
+# def_prompt_type <name> <prefix> <default color> [<ydefault/ndefault>]
+function bashmsg.def_prompt_type {
+	declare -g _bashmsg_col__p_${1}=${3}
+	if [[ -z $4 ]]; then
+		eval "function prompt_${1} { _bashmsg.prompt_generic \"\${1}\" \"${2}\" \"${1}\" \"\${2}\" ; }"
+	else
+		eval "function prompt_${1} { _bashmsg.prompt_generic \"${4}\" \"${2}\" \"${1}\" \"\${1}\" ; }"
+	fi
+}
+
+# Default types
+bashmsg.def_type info '[info]' grey
+bashmsg.def_type warn '[warn]' orange
+bashmsg.def_type error '[error]' red
+
+_bashlib_bashmsg=1
+

bashparam.inc

@@ -0,0 +1,23 @@
+#!/hint/bash
+
+declare -A __params
+
+function has_param {
+	[[ -z ${__params[$1]} ]]
+}
+
+function get_param {
+	echo "${__params[$1]}"
+}
+
+# set_param <longname> <value>
+function set_param {
+	if [[ -z $2 ]]; then
+		>&2 echo "${FUNCNAME}: non-zero value expected"
+		return 1
+	fi
+	$__params[${1:2}]=${2}
+}
+
+
+_bashlib_bashparam=1

bashutils.inc

@@ -0,0 +1,16 @@
+#!/hint/bash
+
+function shasum {
+	command sha256sum <<<"$1" | awk '{ print $1 }'
+}
+
+# once <command>
+function once {
+	local flagname="__onceflag_$(shasum "$*")"
+	if [[ -z ${!flagname} ]]; then
+		declare -g "${flagname}"=1
+		"$@"
+	fi
+}
+
+