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Code Issues Releases Activity

removal: configomat (submodule) (#3045)

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This commit is contained in:
Georg Lauterbach
2023-02-05 12:39:05 +01:00
committed by GitHub
parent 9df71c27a0
commit 00b1d88ed7
11 changed files with 114 additions and 17 deletions
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51
target/scripts/helpers/utils.sh
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@ -63,3 +63,54 @@ function _reload_postfix
_adjust_mtime_for_postfix_maincf
postfix reload
}
# Replaces values in configuration files given a set of specific environment
# variables. The environment variables follow a naming pattern, whereby every
# variable that is taken into account has a given prefix. The new value in the
# configuration will be the one the environment variable had at the time of
# calling this function.
#
# @option --shutdown-on-error = shutdown in case an error is detected
# @param ${1} = prefix for environment variables
# @param ${2} = file in which substitutions should take place
#
# ## Example
#
# If you want to set a new value for `readme_directory` in Postfix's `main.cf`,
# you can set the environment variable `POSTFIX_README_DIRECTORY='/new/dir/'`
# (`POSTFIX_` is an arbitrary prefix, you can choose the one you like),
# and then call this function:
# `_replace_by_env_in_file 'POSTFIX_' 'PATH TO POSTFIX's main.cf>`
#
# ## Panics
#
# This function will panic, i.e. shut down the whole container, if:
#
# 1. No first and second argument is supplied
# 2. The second argument is a path to a file that does not exist
function _replace_by_env_in_file
{
if [[ -z ${1+set} ]]
then
dms_panic__invalid_value 'first argument unset' 'utils.sh:_replace_by_env_in_file'
elif [[ -z ${2+set} ]]
then
dms_panic__invalid_value 'second argument unset' 'utils.sh:_replace_by_env_in_file'
elif [[ ! -f ${2} ]]
then
dms_panic__invalid_value "file '${2}' does not exist" 'utils.sh:_replace_by_env_in_file'
fi
local ENV_PREFIX=${1} CONFIG_FILE=${2}
local ESCAPED_VALUE ESCAPED_KEY
while IFS='=' read -r KEY VALUE
do
KEY=${KEY#"${ENV_PREFIX}"} # strip prefix
ESCAPED_KEY=$(sed -E 's#([\=\&\|\$\.\*\/\[\\^]|\])#\\\1#g' <<< "${KEY,,}")
ESCAPED_VALUE=$(sed -E 's#([\=\&\|\$\.\*\/\[\\^]|\])#\\\1#g' <<< "${VALUE}")
[[ -n ${ESCAPED_VALUE} ]] && ESCAPED_VALUE=" ${ESCAPED_VALUE}"
_log 'trace' "Setting value of '${KEY}' in '${CONFIG_FILE}' to '${VALUE}'"
sed -i -E "s#^${ESCAPED_KEY}[[:space:]]*=.*#${ESCAPED_KEY} =${ESCAPED_VALUE}#g" "${CONFIG_FILE}"
done < <(env | grep "^${ENV_PREFIX}")
}