ECC-1030: grib_get: Add '-B' option for ordering

tests/CMakeLists.txt

@@ -118,6 +118,7 @@ list( APPEND tests_data_reqd
     grib_ecc-984
     grib_ecc-1000
     grib_ecc-1001
+    grib_ecc-1030
     bufr_ecc-556
     gts_get
     gts_ls

tests/grib_ecc-1030.sh

@@ -0,0 +1,51 @@
+#!/bin/sh
+# Copyright 2005-2019 ECMWF.
+#
+# This software is licensed under the terms of the Apache Licence Version 2.0
+# which can be obtained at https://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.
+#
+
+. ./include.sh
+set -u
+# ---------------------------------------------------------
+# This is the test for the JIRA issue ECC-1030
+# grib_get with the ordering option '-B'
+# ---------------------------------------------------------
+label="grib_ecc-1030-test"
+tempRef=temp.${label}.ref
+tempOut=temp.${label}.out
+
+# Test 1
+# ------
+input=${data_dir}/pad.grib
+${tools_dir}/grib_get -p count,level -B'level:i' $input > $tempOut
+cat > $tempRef <<EOF
+1 0
+2 0
+3 0
+4 1
+5 1000
+6 1000
+EOF
+diff -w $tempRef $tempOut
+
+# Test 2
+# ------
+input=${data_dir}/pad.grib
+${tools_dir}/grib_get -p count,level -B'level:i desc' $input > $tempOut
+cat > $tempRef <<EOF
+1 1000
+2 1000
+3 1
+4 0
+5 0
+6 0
+EOF
+diff -w $tempRef $tempOut
+
+
+# Clean up
+rm -f $tempRef $tempOut

tools/grib_get.c

@@ -8,18 +8,14 @@
  * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
  */
 
-/*
- * C Implementation: grib_get
- *
- */
-
 #include "grib_tools.h"
 
 grib_option grib_options[]={
         /*  {id, args, help}, on, command_line, value*/
         {"f",0,0,0,1,0},
         {"p:",0,0,0,1,0},
         {"F:",0,0,1,1,"%g"},
+        {"B:",0,0,0,1,0},
         {"l:",0,0,0,1,0},
         {"P:",0,0,0,1,0},
         {"w:",0,0,0,1,0},

tools/grib_options.c

@@ -29,9 +29,9 @@ static grib_options_help grib_options_help_list[] ={
   {"a",0,"Dump aliases.\n"},
   {"b:","key,key,...",
      "\n\t\tAll the keys in this list are skipped in the comparison. Bit-by-bit compare on.\n"},
-  {"B:","order by directive",
-     "\n\t\tOrder by. The output will be ordered according to the order by directive."
-     "\n\t\tOrder by example: \"step:i asc, centre desc\" (step numeric ascending and centre descending)\n"},
+  {"B:","'order by' directive",
+     "\n\t\tOrder by. The output will be ordered according to the 'order by' directive."
+     "\n\t\tExample: \"step:i asc, centre desc\" (step numeric ascending and centre descending)\n"},
      {"c:","key[:i|d|s|n],key[:i|d|s|n],...",
    "\n\t\tOnly the listed keys or namespaces (:n) are compared. The optional letter after the colon is used "
    "\n\t\tto force the type in the comparison: i->integer, d->float, s->string, n->namespace."