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entrypoint.sh
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entrypoint.sh
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#!/bin/bash
set -eo pipefail
# exec container argument as command
if [ $# -ne 0 ]; then
if [ "$1" == "help" ]; then
print_line=false
while IFS= read -r line; do
if [ "$(grep -wc '\-\-config FILE' <<< "${line}")" -eq 1 ]; then
print_line=true
fi
if [ "$(grep -wc '\-\-port' <<< "${line}")" -eq 1 ]; then
print_line=false
fi
if [ "${print_line}" == "true" ]; then
echo "$line"
fi
done <<< "$(java -cp languagetool-server.jar org.languagetool.server.HTTPServer --help)"
exit 0
else
exec "$@"
fi
fi
# enabled debug for entrypoint script
if [ -n "${DEBUG_ENTRYPOINT}" ] && [ "${DEBUG_ENTRYPOINT}" == "true" ]; then
set -x
fi
fix_dir_owner(){
local _PATH
_PATH="${1}"
find "${_PATH}" ! \( -user languagetool -group languagetool \) -exec chown languagetool:languagetool {} \;
}
# download ngrams
declare -A ngrams_filesnames
ngrams_filesnames[en]=ngrams-en-20150817.zip
ngrams_filesnames[de]=ngrams-de-20150819.zip
ngrams_filesnames[es]=ngrams-es-20150915.zip
ngrams_filesnames[fr]=ngrams-fr-20150913.zip
ngrams_filesnames[nl]=ngrams-nl-20181229.zip
download_and_extract_ngrams(){
local _LANG
_LANG="${1}"
local _BASE_URL
_BASE_URL="https://languagetool.org/download/ngram-data"
if [ ! -d "${langtool_languageModel}/${_LANG}" ]; then
if [ ! -e "${langtool_languageModel}/ngrams-${_LANG}.zip" ]; then
echo "INFO: Downloading \"${_LANG}\" ngrams."
su -s /bin/bash languagetool -c "wget -O \"${langtool_languageModel}/ngrams-${_LANG}.zip\" \"${_BASE_URL}/${ngrams_filesnames[${_LANG}]}\""
fi
if [ -e "${langtool_languageModel}/ngrams-${_LANG}.zip" ]; then
echo "INFO: Extracting \"${_LANG}\" ngrams."
su -s /bin/bash languagetool -c "unzip \"${langtool_languageModel}/ngrams-${_LANG}.zip\" -d \"${langtool_languageModel}\""
su -s /bin/bash languagetool -c "rm \"${langtool_languageModel}/ngrams-${_LANG}.zip\""
fi
else
echo "INFO: Skipping download of ngrams model for language ${_LANG}: already exists."
fi
#if [ -n "${langtool_languageModel}" ]; then
# fix_dir_owner "${langtool_languageModel}/${_LANG}/"
#fi
}
handle_ngrams(){
if [ -n "${langtool_languageModel}" ]; then
if [ -n "${download_ngrams_for_langs}" ] && [ -n "${langtool_languageModel}" ] ; then
IFS=',' read -ra langs <<< "${download_ngrams_for_langs}"
for lang in "${langs[@]}"; do
case "${lang}" in
en|de|es|fr|nl)
download_and_extract_ngrams "${lang}"
;;
none)
;;
*)
echo "ERROR: Unknown ngrams language. Supported languages are \"en\", \"de\", \"es\", \"fr\" and \"nl\"."
exit 1
esac
done
fi
else
if [ -n "${download_ngrams_for_langs}" ]; then
echo "WARNING: No base path for ngram language modules provided, skipping download of ${download_ngrams_for_langs}."
else
echo "WARNING: No base path for ngram language modules provided."
fi
fi
}
download_fasttext_mode(){
if [ -n "${langtool_fasttextModel}" ];then
if [ ! -e "${langtool_fasttextModel}" ]; then
echo "INFO: Downloading fasttext model."
su -s /bin/bash languagetool -c "wget -O \"${langtool_fasttextModel}\" \"https://dl.fbaipublicfiles.com/fasttext/supervised-models/lid.176.bin\""
fix_dir_owner "${langtool_fasttextModel}"
else
echo "INFO: Skipping download of fasttext model: already exists."
fi
else
echo "INFO: \"langtool_fasttextModel\" not specified. Skipping download of fasttext model."
unset langtool_fasttextModel
fi
}
fix_ownership(){
if [ -n "${langtool_languageModel}" ]; then
echo "INFO: Fixing ownership for ngrams base folder if necessary."
fix_dir_owner "${langtool_languageModel}"
fi
if [ -n "${langtool_fasttextModel}" ]; then
echo "INFO: Fixing ownership for fasttext model file if necessary."
fix_dir_owner "$(dirname "${langtool_fasttextModel}")"
fi
}
create_config(){
echo "INFO: Creating new LanguageTool config file."
if [ -e config.properties ]; then
rm config.properties
touch config.properties
fi
for varname in ${!langtool_*}; do
config_injected=true
echo "${varname#'langtool_'}=${!varname}" >> config.properties
done
}
user_map(){
if [ -n "${MAP_UID}" ]; then
CURRENT_UID="$(id languagetool -u)"
if [ "${MAP_UID}" == "${CURRENT_UID}" ]; then
echo "INFO: User \"languagetool\" alread has has uid ${CURRENT_UID}."
else
echo "INFO: Setting uid for user \"languagetool\" to ${MAP_UID}."
usermod -u "${MAP_UID}" languagetool
fi
fi
if [ -n "${MAP_GID}" ]; then
CURRENT_GID="$(id languagetool -g)"
if [ "${MAP_GID}" == "${CURRENT_GID}" ]; then
echo "INFO: Group \"languagetool\" already has gid ${CURRENT_UID}."
else
echo "INFO: Setting gid for group \"languagetool\" to ${MAP_GID}."
groupmod -g "${MAP_GID}" languagetool
fi
fi
}
print_info(){
echo "INFO: Version Informations:"
local _ALPINE_VERSION
_ALPINE_VERSION=$(grep "VERSION_ID=" /etc/os-release | cut -d'=' -f2)
echo "Alpine Linux v${_ALPINE_VERSION}" | indent
java --version | indent
}
indent() { sed 's/^/ /'; }
user_map
fix_ownership
handle_ngrams
download_fasttext_mode
create_config
print_info
# show current languagetool config
if [ "$config_injected" = true ] ; then
echo 'INFO: Using following LanguageTool configuration:'
indent < config.properties
fi
# set default JAVA_OPTS with default memory limits and garbage collector
if [ -z "${JAVA_OPTS}" ]; then
JAVA_GC="${JAVA_GC:-SerialGC}"
for gc in SerialGC ParallelGC ParNewGC G1GC ZGC; do
if [ "${JAVA_GC}" == "${gc}" ]; then
JAVA_GC_OPT="-XX:+Use${JAVA_GC}"
if [ "${JAVA_GC}" == "G1GC" ]; then
JAVA_GC_OPT+=" -XX:+UseStringDeduplication"
fi;
break
fi
done
JAVA_OPTS="-Xms${JAVA_XMS:-256m} -Xmx${JAVA_XMX:-1024m} ${JAVA_GC_OPT}"
echo "INFO: Using JAVA_OPTS=${JAVA_OPTS}"
else
echo "JAVA_OPTS environment variables detected."
echo "INFO: Using JAVA_OPTS=${JAVA_OPTS}"
fi
read -ra FINAL_JAVA_OPTS <<< "${JAVA_OPTS}"
#setloglevel
xml edit --inplace --update "/configuration/logger[@name='org.languagetool']/@level" --value ${LOG_LEVEL} logback.xml
# start languagetool
exec su-exec languagetool:languagetool \
java "${FINAL_JAVA_OPTS[@]}" -Dlogback.configurationFile="${LOGBACK_CONFIG}" -cp languagetool-server.jar org.languagetool.server.HTTPServer \
--port "${LISTEPORT:-8010}" \
--public \
--allow-origin "*" \
--config config.properties