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manuel
72 lines
3.1 KiB
Bash
Executable File
72 lines
3.1 KiB
Bash
Executable File
#!/bin/bash
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EosColor() {
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local color="$1" # one of the foreground color strings below, or a reserved word below
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local std="$2" # optional; stdout (=default) or stderr or 2
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local progname=${0##*/}
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# shellcheck disable=1090
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source "/etc/$progname.conf"
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case "$color" in
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-h | --help) Help 0 ;;
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$'\e['*) ;; # "$RED"|"$GREEN"|"$YELLOW"|"$BLUE"|"$MAGENTA"|"$CYAN") ;;
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*)
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# allow some case insensitive reserved words
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local color2="${color,,}"
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case "$color2" in
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"") color="${COLORS[reset]}" ;;
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reset|error|fail|warning|info|tip|ok) color="${COLORS[$color2]}" ;;
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red|green|yellow|blue|magenta|cyan) color="${COLORS[$color2]}" ;;
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*) WARN "color-def '$color' not supported" 1 ;;
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esac
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;;
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esac
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case "$std" in
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stderr | 2) echo -n "$color" >&2 ;;
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*) echo -n "$color" ;;
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esac
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}
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Help() {
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local -r progname=${0##*/}
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cat <<EOF
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Usage: $progname [Options] Color-def [Target-def]
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Options: -h, --help This help. Optional.
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Color-def: Color variables and reserved words defined in /etc/$progname.conf. Required.
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Special values:
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error, fail For errors messages (red).
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warning For warning messages (yellow).
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info For info messages (green).
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tip, ok For tips and OK messages (cyan).
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"", reset Back to "normal" colors.
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red, green, yellow, These supported reserved words (case insensitive!) represent the respective
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blue, magenta, cyan, colors; certain variables (i.e. from "$RED" to "$CYAN") are supported too.
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Target-def: Sets the file descriptor (fd) for the output. Optional.
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Values:
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2, stderr Output to fd 2.
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Any other value Output to fd 1.
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Examples:
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eos-color error stderr Sets the color of future outputs to "error" (red).
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Output goes to fd 2.
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eos-color \$RED 2 Same as above, using a variable from /etc/$progname.conf.
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eos-colot red Same as above, using a reserved word from /etc/$progname.conf.
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eos-color tip Sets the color for future tips (for fd 1).
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eos-color reset 2 Sets future outputs to "normal" colors (for fd 2).
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eos-color Sets future outputs to "normal" colors (for fd 1).
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eos-color "" 2 Sets future outputs to "normal" colors (for fd 2).
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EOF
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[ "$1" ] && exit "$1"
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}
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WARN() {
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local message="$1"
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local exitcode="$2" # optional
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local -r errlog="/tmp/$progname.errlog"
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echo -e "==> $progname: warning: $message" >> "$errlog"
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[ "$exitcode" ] && exit "$exitcode"
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}
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EosColor "$@"
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