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I tried to do too many things in one function, vastly overcomplicating what should have been _this_ all along

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Signed-off-by: Adam Warner <me@adamwarner.co.uk>
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Adam Warner 2022-04-14 22:53:38 +01:00
parent 9356d7bbb1
commit db116971ce
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GPG key ID: 872950F3ECF2B173
3 changed files with 28 additions and 22 deletions
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42
advanced/Scripts/utils.sh
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@ -17,43 +17,49 @@
# - New functions must have a test added for them in test/test_any_utils.py
#######################
# Takes either
# - Three arguments: file, key, and value.
# - Two arguments: file, and key.
# Takes Three arguments: file, key, and value.
#
# Checks the target file for the existence of the key
# - If it exists, it changes the value
# - If it does not exist, it adds the value
#
# Example usage:
# addOrEditKeyValuePair "/etc/pihole/setupVars.conf" "BLOCKING_ENABLED" "true"
# addOrEditKeyValPair "/etc/pihole/setupVars.conf" "BLOCKING_ENABLED" "true"
#######################
addOrEditKeyValPair() {
local file="${1}"
local key="${2}"
local value="${3}"
if [ "${value}" != "" ]; then
# value has a value, so it is a key-value pair
if grep -q "^${key}=" "${file}"; then
if grep -q "^${key}=" "${file}"; then
# Key already exists in file, modify the value
sed -i "/^${key}=/c\\${key}=${value}" "${file}"
else
# Key does not already exist, add it and it's value
echo "${key}=${value}" >> "${file}"
fi
else
# value has no value, so it is just a key. Add it if it does not already exist
if ! grep -q "^${key}" "${file}"; then
# Key does not exist, add it.
echo "${key}" >> "${file}"
fi
# Key does not already exist, add it and it's value
echo "${key}=${value}" >> "${file}"
fi
}
#######################
# Takes two arguments file, and key.
# Deletes a key from target file
# Takes two arguments: file, and key.
# Adds a key to target file
#
# Example usage:
# addKey "/etc/dnsmasq.d/01-pihole.conf" "log-queries"
#######################
addKey(){
local file="${1}"
local key="${2}"
if ! grep -q "^${key}" "${file}"; then
# Key does not exist, add it.
echo "${key}" >> "${file}"
fi
}
#######################
# Takes two arguments: file, and key.
# Deletes a key or key/value pair from target file
#
# Example usage:
# removeKey "/etc/pihole/setupVars.conf" "PIHOLE_DNS_1"