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Man Pages


Manual Reference Pages  -  SHTK_CONFIG_OVERRIDE (3)

NAME

shtk_config_override - Records an override to be applied to the configuration

CONTENTS

Library
Synopsis
Description
Examples
See Also
History

LIBRARY

shtk_import config

SYNOPSIS

shtk_config_override override

DESCRIPTION

The shtk_config_override function records the override given in override, which must have the form 'variable=value'.

Overrides are values given to configuration variables that can be set before the configuration file is loaded with shtk_config_load(3). This feature is useful to support parsing all command line flags before attempting to load the configuration file, as the script should first validate all user input before performing any action.

EXAMPLES

This code snippet illustrates a program with a configuration file that supports a VERBOSE variable and that, for convenience reasons, can be overriden via the command line using the -v flag:
shtk_config_init VERBOSE

local OPTIND while getopts ’:v’ arg "${@}"; do case "${arg}" in v) # Enable verbose mode. shtk_config_override VERBOSE=yes ;; \?) shtk_cli_usage_error "Unknown option -${OPTARG}" ;; esac done shift $((${OPTIND} - 1))

shtk_config_set VERBOSE no # Set the default value. shtk_config_load "/etc/my_program.conf"

SEE ALSO

shtk(3), shtk_config(3)

HISTORY

shtk_config_override first appeared in shtk 1.0.
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