Added semantic versioning comparison method to strings.

2 files changed, 19 insertions, 0 deletions

diff --git a/mesonbuild/interpreter.py b/mesonbuild/interpreter.py
index c785e88..aac021a 100644
--- a/mesonbuild/interpreter.py
+++ b/mesonbuild/interpreter.py
@@ -2159,6 +2159,13 @@ class Interpreter():
             strlist = posargs[0]
             check_stringlist(strlist)
             return obj.join(strlist)
+        elif method_name == 'version_compare':
+            if len(posargs) != 1:
+                raise InterpreterException('Version_compare() takes exactly one argument.')
+            cmpr = posargs[0]
+            if not isinstance(cmpr, str):
+                raise InterpreterException('Version_compare() argument must be a string.')
+            return mesonlib.version_compare(obj, cmpr)
         raise InterpreterException('Unknown method "%s" for a string.' % method_name)
 
     def to_native(self, arg):
diff --git a/test cases/common/42 string formatting/meson.build b/test cases/common/42 string operations/meson.build
index 0d17448..5d7a73d 100644
--- a/test cases/common/42 string formatting/meson.build
+++ b/test cases/common/42 string operations/meson.build
@@ -55,3 +55,15 @@ assert('@0@'.format(true) == 'true', 'bool string formatting failed')
 assert(' '.join(['a', 'b', 'c']) == 'a b c', 'join() array broken')
 assert(''.join(['a', 'b', 'c']) == 'abc', 'empty join() broken')
 assert(' '.join(['a']) == 'a', 'single join broken')
+
+version_number = '1.2.8'
+
+assert(version_number.version_compare('>=1.2.8'), 'Version_compare gt broken')
+assert(not version_number.version_compare('>1.2.8'), 'Version_compare greater broken')
+assert(not version_number.version_compare('<1.2.8'), 'Version_compare less broken')
+assert(version_number.version_compare('<=1.2.8'), 'Version_compare le broken')
+assert(version_number.version_compare('==1.2.8'), 'Version_compare eq broken')
+assert(not version_number.version_compare('!=1.2.8'), 'Version_compare neq broken')
+
+assert(version_number.version_compare('<2.0'), 'Version_compare major less broken')
+assert(version_number.version_compare('>0.9'), 'Version_compare major greater broken')