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# Functions for printing messages
#
# Copyright (C) 2012, 2018, 2019 Patrick McDermott
#
# This file is part of opkbuild.
#
# opkbuild is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# opkbuild is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with opkbuild. If not, see <http://www.gnu.org/licenses/>.
## @brief Print an error message and exit
## @details \fBob_error\fP prints \fIarguments\fP according to \fIformat\fP and
## then exits the application.
## @operand format req The format string. See \fBprintf\fP(1) for the syntax
## of \fIformat\fP.
## @operand arguments opt Arguments to be printed, as referenced by
## \fIformat\fP.
## @return This function does not return. It causes the application to exit
## with an exit status of 1.
## @stderr This function prints the formatted message, preceded by the program
## name and "Error:", to stderr.
## @pure no This function causes the current shell to exit.
ob_error()
{
printf '%s: Error: ' "${0##*/}" >&2
printf "${@}" >&2
printf '\n' >&2
exit 1
}
## @brief Print a warning message
## @details \fBob_warn\fP prints \fIarguments\fP according to \fIformat\fP.
## @operand format req The format string. See \fBprintf\fP(1) for the syntax
## of \fIformat\fP.
## @operand arguments opt Arguments to be printed, as referenced by
## \fIformat\fP.
## @return Returns 0 on success or 125 if \fIformat\fP is missing.
## @stderr This function prints the formatted message, preceded by the program
## name and "Warning:", to stderr.
## @pure yes This function has no side effects.
ob_warn()
{
if [ ${#} -eq 0 ]; then
return 125
fi
printf '%s: Warning: ' "${0##*/}" >&2
printf "${@}" >&2
printf '\n' >&2
return 0
}
## @brief Print an informational message
## @details \fBob_warn\fP prints \fIarguments\fP according to \fIformat\fP.
## @operand format req The format string. See \fBprintf\fP(1) for the syntax
## of \fIformat\fP.
## @operand arguments opt Arguments to be printed, as referenced by
## \fIformat\fP.
## @return Returns 0 on success or 125 if \fIformat\fP is missing.
## @stderr This function prints the formatted message, preceded by the program
## name, to stderr.
## @pure yes This function has no side effects.
ob_info()
{
if [ ${#} -eq 0 ]; then
return 125
fi
printf '%s: ' "${0##*/}" >&2
printf "${@}" >&2
printf '\n' >&2
return 0
}
_ob_error_msg()
{
local msgid="${1}"
shift 1
ob_error "$(_ob_get_msg "${msgid}")" "${@}"
return 0
}
_ob_warn_msg()
{
local msgid="${1}"
shift 1
ob_warn "$(_ob_get_msg "${msgid}")" "${@}"
return 0
}
_ob_info_msg()
{
local msgid="${1}"
shift 1
ob_info "$(_ob_get_msg "${msgid}")" "${@}"
return 0
}
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