eccodes/tests/utils.sh

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#!/bin/sh
# (C) Copyright 2005- ECMWF.
#
# This software is licensed under the terms of the Apache Licence Version 2.0
# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
#
# In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
# virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
#
set -ea
#
# Utility functions for testing
#
# Check the key(s) in the given grib file have the expected value(s)
# Assumes the file has only ONE message otherwise output goes on to
# several lines
grib_check_key_equals()
{
a_file=$1
a_key=$2
a_expected=$3
a_result=`${tools_dir}/grib_get -p $a_key $a_file`
if [ "$a_result" != "$a_expected" ]; then
echo "File: '$a_file'"
echo "Key(s): '$a_key'"
echo "Expected: '$a_expected'"
echo "Result: '$a_result'"
exit 1
fi
}
grib_check_key_exists()
{
a_file=$1
a_key=$2
# grib_get will fail if the key is not found
$tools_dir/grib_get -p $a_key $a_file >/dev/null
}
# This is useful in situations where we intend a key to have
# a single value (size=1). For example when we redefine a transient
grib_check_key_is_scalar()
{
a_file=$1
a_key=$2
a_val=$3
result=$(echo "print '|[$a_key]|';" | ${tools_dir}/grib_filter - $a_file)
[ "$result" = "|$a_val|" ]
}
# This ensures setting the keys via grib_filter (similar to the API, one key at a time)
# works the same way as grib_set. The resultant GRIB outputs are compared
# E.g.,
# grib_encode_via_set_and_filter $label key1=val1,key2=val2,key3=val3 $ECCODES_SAMPLES_PATH/GRIB2.tmpl
#
grib_encode_via_set_and_filter()
{
_label=$1 # For generating temp files
_kvals=$2 # key1=val1,key2=val2
_input=$3 # Must be a GRIB file
temp_encode_filt=temp.encode.$_label.filt
temp_encode_gribA=temp.encode.$_label.A.grib
temp_encode_gribB=temp.encode.$_label.B.grib
for kv in $(echo $_kvals | tr ',' ' '); do
k=$(echo $kv | awk -F= '{print $1}')
v=$(echo $kv | awk -F= '{print $2}')
if [[ "$v" =~ ^[A-z] ]]; then
echo "set $k = \"$v\" ;" >> $temp_encode_filt
else
echo "set $k = $v ;" >> $temp_encode_filt
fi
done
echo "write;" >> $temp_encode_filt
# cat $temp_encode_filt
${tools_dir}/grib_filter -o $temp_encode_gribA $temp_encode_filt $_input
${tools_dir}/grib_set -s $_kvals $_input $temp_encode_gribB
${tools_dir}/grib_compare $temp_encode_gribA $temp_encode_gribB
rm -f $temp_encode_filt $temp_encode_gribB $temp_encode_gribA
}