eccodes/definitions/check_grib_defs.pl

317 lines
10 KiB
Perl
Executable File

#!/usr/bin/env perl
#
# Copyright 2005-2016 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.
#
#########################################################################################
# Load in the definition files for GRIB "concepts" and check:
# 1. They have the same number of parameters
# 2. The params occur in the same order
# 3. Each parameter has same keys and values
# 4. Some basic rules are adhered to
#
# URLs:
# http://perldoc.perl.org/perldsc.html#MORE-ELABORATE-RECORDS
#########################################################################################
$|=1;
#use strict;
use Test::More;
use Data::Dumper;
use Cwd;
my $GRIB1_MAX_TABLE2VERSION = 3; # The maximum allowable value for WMO GRIB1 table2Version
$extra_info= 0; # Do we print more info?
$debug = 0;
$check_duplicate_paramIDs = 0; # We tolerate this but maybe not for new data
$errmsg = "";
my $key;
my $pwd = getcwd;
$localConcept = 0;
# Determine if the parameters we are checking are LOCAL CONCEPTS or WMO ones
if ($pwd =~ /\/localConcepts\//) {
print "It's local concepts\n";
$localConcept = 1;
}
@files = qw(name.def paramId.def shortName.def units.def);
foreach my $f (@files) {
die "Where is $f?\nI expected to find: @files\n" unless -f $f;
}
while (my $arg = shift @ARGV){
if ($arg =~ /-D(\w+)=(\w+)/) {
$var_name = $1; $value = $2;
$$var_name = $value;
#$$1 = $2; same as above but more compact
}
}
my %name_map = process("name.def");
my $count = scalar(keys %name_map);
ok($count > 0, "Check some params found");
die "No params found" if ($count eq 0);
my %paramId_map = process("paramId.def");
print Data::Dumper->Dump([\%paramId_map], ["paramId_map"]), $/ if ($debug);
if ($extra_info) {
# Define an array of all hashes: key -> hash
my @all_maps = ();
print "paramId.def: Num parameters = " . $count . " \n";
print "paramId.def: Scanning for duplicate definitions...\n";
my $num_duplicates = 0;
for $key (keys %paramId_map) {
@hashes = @{ $paramId_map{$key} };
#if (@hashes > 1) {
#print "\t$key: @{ $name_map{$key} }\n";
# print Data::Dumper->Dump([\$name_map{$key}], ["Map for $key"]);
# ++$num_duplicates;
#}
# Iterate through the hashes array. Each entry in @hashes is a hash
foreach $ahash (@hashes) {
# See if our little map exists in the pool of all maps seen so far
#print Data::Dumper->Dump([\$ahash], ["Map for ahash"]);
for $m1 (@all_maps) {
#print "\t", Data::Dumper->Dump([\$m1], ["Map for m1"]);
#my $same = is_deeply(\$m1, \$ahash);
my $same = eq_hash(\$m1, \$ahash);
if ($same) {
print "\nThe following mapping occurs somewhere else!!\n";
print "Key=$key,\t", Data::Dumper->Dump([\$ahash], [" "]);
#exit 2;
}
}
push(@all_maps, $ahash);
}
}
#print "DONE\n";
}
my %shortName_map = process("shortName.def");
my %units_map = process("units.def");
# Check maps are the same
is_deeply(\%name_map, \%paramId_map, 'Check name and paramId are the same');
is_deeply(\%name_map, \%shortName_map, 'Check name and shortName are the same');
is_deeply(\%name_map, \%units_map, 'Check name and units are the same');
if (-f "cfVarName.def") {
my %cfVar_map = process("cfVarName.def");
is_deeply(\%name_map, \%cfVar_map, 'Check name and cfVarName are the same');
} else {
print "\n\tWARNING: Did not find a cfVarName.def file!!!\n\n";
}
done_testing();
check_paramIDs("paramId.def");
# -------------------------------------------------------------------------
# Function to return a hash:
# key = parameter long name
# value = an array holding 1 or more hashes
#
# E.g.
# hash = {
# 'Reactive tracer 10 mass mixing ratio' => [
# {
# 'parameterCategory' => '210',
# 'parameterNumber' => '149',
# 'discipline' => '192'
# },
# {
# 'parameterCategory' => '211',
# 'parameterNumber' => '149',
# 'discipline' => '192'
# }
# ],
# 'downward shortwave radiant flux density' => [
# {
# 'parameterCategory' => '201',
# 'parameterNumber' => '1',
# 'discipline' => '192'
# }
# ],
# .... etc
#
# -------------------------------------------------------------------------
sub process {
my ($filename) = @_;
open FILE, $filename or die "Tried to open $filename\n$!";
my @lines = <FILE>;
close(FILE);
my $error = 0; # boolean: 1 if at least one error encountered
my %map1 = ();
my %map2 = (); # inner map
my $lineNum = 0;
my $desc = "";
my $concept = "";
my $this; # a line in file
foreach $this (@lines) {
$lineNum++;
chomp $this;
if ($lineNum == 1 && $this !~ /^#/ ) {
die "File: $filename, first line should be a comment!";
}
# Description line
if ($this =~ /^\s*#\s*(.*)\s*/) {
$desc = $1;
$desc =~ s/^\s+//; #remove leading spaces
$desc =~ s/\s+$//; #remove trailing spaces
die "File: $filename, line: $lineNum: Empty description" if ($desc eq "");
}
# key = value
elsif ($this =~ /(\w+)\s*=\s*([^ ]+)\s*;/ && $desc) {
$key = $1;
$val = $2;
if (!is_valid_keyval($key, $val, $localConcept)) {
$error = 1;
print "File: $filename, line: $lineNum: $errmsg (name=$desc)\n";
}
# Users will set parameters by shortname or ID
if ($filename eq 'paramId.def' || $filename eq 'shortName.def') {
# The 'typeOfSecondFixedSurface' key has side effects and can change the scale values/factors!
# So make sure it comes BEFORE the scale keys! So if we come across this key ensure none of
# scale keys came before it
if ( $key =~ /typeOfSecondFixedSurface/ &&
(exists($map2{'scaleFactorOfFirstFixedSurface'}) ||
exists($map2{'scaledValueOfFirstFixedSurface'}) ||
exists($map2{'scaleFactorOfSecondFixedSurface'}) ||
exists($map2{'scaledValueOfSecondFixedSurface'})) )
{
print "File: $filename, line: $lineNum: TypeOfSurface problem (GRIB-229): Please check: $desc\n";
#print "DUMP,\t", Data::Dumper->Dump([\%map2], [" "]);
$error = 1;
}
}
$map2{$key} = $val;
}
elsif ($this =~ /'(.*)'.*=/) {
$concept = $1;
if ($filename eq 'cfVarName.def') {
#if ($concept =~ /^[0-9]/) {
# Check CF naming convention. Do not allow numeric initial char or ~
if ($concept !~ /^[A-z]/) {
$error = 1;
die "File: $filename, line: $lineNum: Invalid netcdf variable name: $concept";
}
}
}
# Hit the end brace
elsif ($this =~ /^\s*}\s*$/) {
my %map2_copy = %map2; # copy inner hash
# Store this inner hash in our array
push @{ $map1{$desc} }, \%map2_copy;
%map2 = (); # Empty inner map for next param
}
}
exit 1 if $error;
return (%map1);
}
###################################
sub is_valid_keyval {
my $key = shift;
my $val = shift;
my $local = shift;
return 0 if (!is_valid_octet($key,$val));
return 0 if (!is_valid_table2Version($key,$val,$local));
return 0 if (!is_goodval($key,$val));
return 1;
}
sub is_valid_octet {
my $key = shift;
my $val = shift;
# Rule: Some keys are are only 1 octet so can only be 0->255
if ($val > 255 || $val < 0) {
if ($key eq 'discipline' || $key eq 'parameterCategory' || $key eq 'parameterNumber' ||
$key eq 'indicatorOfParameter' || $key eq 'table2Version')
{
$errmsg = "Bad $key: \"$val\". Can only be 0->255";
return 0;
}
}
return 1;
}
sub is_valid_table2Version {
my $key = shift;
my $val = shift;
my $is_local = shift;
if (!$is_local && $key eq 'table2Version') {
# GRIB edition 1 rule: in the WMO dir, table2Version <= 3
if ($val > $GRIB1_MAX_TABLE2VERSION) {
$errmsg = "Bad table2Version: \"$val\". Is this a local concept?";
return 0;
}
}
return 1;
}
sub is_goodval {
my $key = shift;
my $val = shift;
if ($key eq 'discipline' || $key eq 'parameterCategory' || $key eq 'parameterNumber' ||
$key eq 'indicatorOfParameter' || $key eq 'table2Version')
{
if (!is_integer($val)) {
$errmsg = "Invalid value for $key: \"$val\". Expected a number!";
return 0;
}
}
return 1;
}
sub is_integer {
my $val = shift;
return ($val =~ /^\d+$/);
}
################
sub check_paramIDs {
my ($filename) = @_;
open FILE, $filename or die "Tried to open $filename\n$!";
my @lines = <FILE>;
close(FILE);
my $warnings = 0; # count of the number of warnings
my %id_map = ();
my $lineNum = 0;
my $a_pid; # a parameter ID
my $this; # a line in file
foreach $this (@lines) {
$lineNum++;
chomp $this;
# a parameter ID
if ($this =~ /^\s*'(.*)'\s*/) {
$a_pid = $1;
die "File: $filename, line: $lineNum: paramID \"$a_pid\" is not an integer!" if (!is_integer($a_pid));
if ($check_duplicate_paramIDs) {
if (exists $id_map{$a_pid}) {
print "WARNING: File: $filename, line: $lineNum: Duplicate paramID found: $a_pid\n";
$warnings++;
} else {
$id_map{$a_pid} = 1;
}
}
}
}
print "**\n* Duplicate paramIDs: Encountered $warnings warning(s)\n**\n" if ($warnings>0);
}