Use shell startup setting to enable warnings or errors

Signed-off-by: javrin <[email protected]>

Author: Jawabiscuit

src/rez/rezconfig.py

@@ -709,7 +709,8 @@
 # If true, print warnings associated with shell startup sequence, when using
 # tools such as rez-env. For example, if the target shell type is "sh", and
 # the "rcfile" param is used, you would get a warning, because the sh shell
-# does not support rcfile.
+# does not support rcfile. Also recieve warnings or errors if incompatible shell
+# settings are used.
 warn_shell_startup = False
 
 # If true, print a warning when an untimestamped package is found.

src/rezplugins/shell/gitbash.py

@@ -109,6 +109,10 @@ def get_syspaths(cls):
         return cls.syspaths
 
     def validate_env_sep_map(self):
+        # Return early if validation is disabled.
+        if not config.warn("shell_startup"):
+            return
+
         env_var_seps = self.env_sep_map
         shell = self.name()
         shell_setting = self.shell_env_sep_map_setting