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#!/bin/bash
#
# **inc/ini-config** - Configuration/INI functions
#
# Support for manipulating INI-style configuration files
#
# These functions have no external dependencies and no side-effects
# Save trace setting
INC_CONF_TRACE=$(set +o | grep xtrace)
set +o xtrace
# Config Functions
# ================
# Append a new option in an ini file without replacing the old value |
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# iniadd [-sudo] config-file section option value1 value2 value3 ... |
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function iniadd { |
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local xtrace
xtrace=$(set +o | grep xtrace) |
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set +o xtrace |
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local sudo=""
if [ $1 == "-sudo" ]; then
sudo="-sudo "
shift
fi |
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local file=$1
local section=$2
local option=$3
shift 3
local values="$(iniget_multiline $file $section $option) $@" |
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iniset_multiline $sudo $file $section $option $values |
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$xtrace
}
# Comment an option in an INI file |
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# inicomment [-sudo] config-file section option |
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function inicomment { |
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local xtrace
xtrace=$(set +o | grep xtrace) |
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set +o xtrace |
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local sudo=""
if [ $1 == "-sudo" ]; then
sudo="sudo "
shift
fi |
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local file=$1
local section=$2
local option=$3
|
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$sudo sed -i -e "/^\[$section\]/,/^\[.*\]/ s|^\($option[ \t]*=.*$\)|#\1|" "$file" |
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$xtrace
}
# Get an option from an INI file
# iniget config-file section option
function iniget { |
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local xtrace
xtrace=$(set +o | grep xtrace) |
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set +o xtrace
local file=$1
local section=$2
local option=$3
local line
line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" "$file")
echo ${line#*=}
$xtrace
}
# Get a multiple line option from an INI file
# iniget_multiline config-file section option
function iniget_multiline { |
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local xtrace
xtrace=$(set +o | grep xtrace) |
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set +o xtrace
local file=$1
local section=$2
local option=$3
local values
values=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { s/^$option[ \t]*=[ \t]*//gp; }" "$file")
echo ${values}
$xtrace
}
# Determinate is the given option present in the INI file
# ini_has_option config-file section option
function ini_has_option { |
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local xtrace
xtrace=$(set +o | grep xtrace) |
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set +o xtrace
local file=$1
local section=$2
local option=$3
local line
line=$(sed -ne "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ p; }" "$file")
$xtrace
[ -n "$line" ]
}
# Add another config line for a multi-line option.
# It's normally called after iniset of the same option and assumes
# that the section already exists.
#
# Note that iniset_multiline requires all the 'lines' to be supplied
# in the argument list. Doing that will cause incorrect configuration
# if spaces are used in the config values.
# |
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# iniadd_literal [-sudo] config-file section option value |
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function iniadd_literal { |
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local xtrace
xtrace=$(set +o | grep xtrace) |
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set +o xtrace |
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local sudo=""
if [ $1 == "-sudo" ]; then
sudo="sudo "
shift
fi |
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local file=$1
local section=$2
local option=$3
local value=$4
|
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if [[ -z $section || -z $option ]]; then
$xtrace
return
fi |
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# Add it |
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$sudo sed -i -e "/^\[$section\]/ a\\ |
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$option = $value
" "$file"
$xtrace
}
# Remove an option from an INI file |
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# inidelete [-sudo] config-file section option |
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function inidelete { |
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local xtrace
xtrace=$(set +o | grep xtrace) |
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set +o xtrace |
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local sudo=""
if [ $1 == "-sudo" ]; then
sudo="sudo "
shift
fi |
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local file=$1
local section=$2
local option=$3
|
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if [[ -z $section || -z $option ]]; then
$xtrace
return
fi |
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# Remove old values |
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$sudo sed -i -e "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ d; }" "$file" |
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$xtrace
}
# Set an option in an INI file |
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# iniset [-sudo] config-file section option value |
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# - if the file does not exist, it is created |
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function iniset { |
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local xtrace
xtrace=$(set +o | grep xtrace) |
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set +o xtrace |
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local sudo=""
if [ $1 == "-sudo" ]; then
sudo="sudo "
shift
fi |
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local file=$1
local section=$2
local option=$3
local value=$4
|
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if [[ -z $section || -z $option ]]; then
$xtrace
return
fi |
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if ! grep -q "^\[$section\]" "$file" 2>/dev/null; then
# Add section at the end |
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echo -e "\n[$section]" | $sudo tee --append "$file" > /dev/null |
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fi
if ! ini_has_option "$file" "$section" "$option"; then
# Add it |
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$sudo sed -i -e "/^\[$section\]/ a\\ |
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$option = $value
" "$file"
else
local sep=$(echo -ne "\x01")
# Replace it |
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$sudo sed -i -e '/^\['${section}'\]/,/^\[.*\]/ s'${sep}'^\('${option}'[ \t]*=[ \t]*\).*$'${sep}'\1'"${value}"${sep} "$file" |
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fi
$xtrace
}
# Set a multiple line option in an INI file |
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# iniset_multiline [-sudo] config-file section option value1 value2 valu3 ... |
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function iniset_multiline { |
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local xtrace
xtrace=$(set +o | grep xtrace) |
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set +o xtrace |
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local sudo=""
if [ $1 == "-sudo" ]; then
sudo="sudo "
shift
fi |
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local file=$1
local section=$2
local option=$3
shift 3
local values
for v in $@; do
# The later sed command inserts each new value in the line next to
# the section identifier, which causes the values to be inserted in
# the reverse order. Do a reverse here to keep the original order.
values="$v ${values}"
done
if ! grep -q "^\[$section\]" "$file"; then
# Add section at the end |
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echo -e "\n[$section]" | $sudo tee --append "$file" > /dev/null |
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else
# Remove old values |
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$sudo sed -i -e "/^\[$section\]/,/^\[.*\]/ { /^$option[ \t]*=/ d; }" "$file" |
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fi
# Add new ones
for v in $values; do |
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$sudo sed -i -e "/^\[$section\]/ a\\ |
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$option = $v
" "$file"
done
$xtrace
}
# Uncomment an option in an INI file
# iniuncomment config-file section option
function iniuncomment { |
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local xtrace
xtrace=$(set +o | grep xtrace) |
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set +o xtrace |
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local sudo=""
if [ $1 == "-sudo" ]; then
sudo="sudo "
shift
fi |
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local file=$1
local section=$2
local option=$3 |
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$sudo sed -i -e "/^\[$section\]/,/^\[.*\]/ s|[^ \t]*#[ \t]*\($option[ \t]*=.*$\)|\1|" "$file" |
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$xtrace
}
# Restore xtrace
$INC_CONF_TRACE
# Local variables:
# mode: shell-script
# End: |