coredata: CmdLineFileParser no longer interpolates strings.

Previously if a user tried to pass a command line build
option that contained a '%' character the command line
parser assumed that there was string interpolation to be
done. As there is no sense in such a scenario no code
provides any input for the interpolation. This then leads to
a failure.

In this commit we specifically override the defaults in
ConfigParser and set interpolation to None, which disables
command line build option interpolation.

Fixes #6157

1 files changed, 5 insertions, 0 deletions

diff --git a/run_unittests.py b/run_unittests.py
index 1105a8f..a97aac6 100755
--- a/run_unittests.py
+++ b/run_unittests.py
@@ -3382,6 +3382,11 @@ recommended as it is not supported on some platforms''')
         self.assertEqual(obj.compiler_options.host['c_args'].value, ['foo bar', 'one', 'two'])
         self.wipe()
 
+        self.init(testdir, extra_args=['-Dset_percent_opt=myoption%'])
+        obj = mesonbuild.coredata.load(self.builddir)
+        self.assertEqual(obj.user_options['set_percent_opt'].value, 'myoption%')
+        self.wipe()
+
         # Setting a 2nd time the same option should override the first value
         try:
             self.init(testdir, extra_args=['--bindir=foo', '--bindir=bar',