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#!/usr/bin/env bash
function parse_yaml {
local prefix=$2
local s='[[:space:]]*' w='[a-zA-Z0-9_]*' fs=$(echo @|tr @ '\034')
sed -ne "s|^\($s\):|\1|" \
-e "s|^\($s\)\($w\)$s:$s[\"']\(.*\)[\"']$s\$|\1$fs\2$fs\3|p" \
-e "s|^\($s\)\($w\)$s:$s\(.*\)$s\$|\1$fs\2$fs\3|p" $1 |
awk -F$fs '{
indent = length($1)/2;
vname[indent] = $2;
for (i in vname) {if (i > indent) {delete vname[i]}}
if (length($3) > 0) {
vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")}
printf("%s%s%s=\"%s\"\n", "'$prefix'",vn, $2, $3);
}
}'
}
main_config_yml=$1
local_root=$2
if [[ ${main_config_yml} == "hdfs://"* ]]; then
config_filename=`basename ${main_config_yml}`
echo 'download config from ${main_config_yml}...'
local_config="${local_root}/config" && mkdir -p ${local_config}
hadoop fs -get ${main_config_yml} ${local_config}/
echo 'finish download config from ${main_config_yml}...'
main_config_yml=${local_config}/${config_filename}
fi
compgen -A variable > ~/.env-vars
eval $(parse_yaml ${main_config_yml})
# set option flags
options=""
for var in `compgen -A variable | grep -Fxvf ~/.env-vars`
do
if [[ ${var} == "model_"* || ${var} == "data_"* || ${var} == "options" ]]; then
continue
fi
if [[ ${!var} == "true" ]]; then
varname=`echo ${var} | sed 's/\_/\-/g'`
options=${options}" --${varname}"
else
varname=`echo ${var} | sed 's/\_/\-/g'`
options=${options}" --${varname} ${!var}"
fi
done
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