version from codemeta

CMakeLists.txt

@@ -1,8 +1,11 @@
-cmake_minimum_required(VERSION 3.14...3.22)
+cmake_minimum_required(VERSION 3.19...3.22)
+
+file(READ ${CMAKE_CURRENT_LIST_DIR}/codemeta.json _j)
+string(JSON PROJECT_VERSION GET ${_j} version)
 
 project(RPNcalc
 LANGUAGES Fortran
-VERSION 1.2.1
+VERSION ${PROJECT_VERSION}
 HOMEPAGE_URL https://github.com/scivision/rpn-calc-fortran)
 
 include(CTest)

codemeta.json

@@ -0,0 +1,30 @@
+{
+    "@context": "https://doi.org/10.5063/schema/codemeta-2.0",
+    "@type": "SoftwareSourceCode",
+    "codeRepository": "https://github.com/scivision/rpn-calc-fortran",
+    "contIntegration": "https://github.com/scivision/rpn-calc-fortran/actions",
+    "dateModified": "2021-12-22",
+    "downloadUrl": "https://github.com/scivision/rpn-calc-fortran/releases",
+    "issueTracker": "https://github.com/scivision/rpn-calc-fortran/issues",
+    "name": "RPN Calculator",
+    "version": "1.3.0",
+    "identifier": "",
+    "description": "Reverse Polish Notation (RPN) calculator. Over 100 functions not in standard Fortran",
+    "applicationCategory": "calculator",
+    "developmentStatus": "active",
+    "keywords": [
+        "RPN",
+        "calculator"
+    ],
+    "programmingLanguage": [
+        "Fortran"
+    ],
+    "author": [
+        {
+            "@type": "Person",
+            "@id": "https://orcid.org/0000-0002-1637-6526",
+            "givenName": "Michael",
+            "familyName": "Hirsch"
+        }
+    ]
+}

meson.build

@@ -1,7 +1,6 @@
 project('RPNcalc', 'fortran',
   default_options : ['default_library=static', 'warning_level=1', 'buildtype=release'],
-  meson_version: '>=0.51',
-  version: '1.2.1')
+  meson_version: '>=0.51')
 
 fc = meson.get_compiler('fortran')
 if fc.get_id() == 'gcc'
@@ -15,4 +14,4 @@ rpncalc_exe = executable('rpncalc', rpncalc_src,
   install : true)
 
 # tests
-subdir('src/tests')
+subdir('src/tests')