rules: use symlinks to resolve mismatches between option names and files

Use in-repository-only symlinks between symbols files that help us to
resolve option mismatches, e.g. where we need to map caps:foo to
capslock(foo).

This effectively reverts
   symbols: symlink the special rules prefixes to our symbols files

1 files changed, 10 insertions, 2 deletions

diff --git a/rules/generate-options-symbols.py b/rules/generate-options-symbols.py
index fcd3906a..d4eee5da 100755
--- a/rules/generate-options-symbols.py
+++ b/rules/generate-options-symbols.py
@@ -162,12 +162,20 @@ def resolve_option(option: Option) -> DirectiveSet:
             else:
                 continue
 
+        if (subdir / filename).is_symlink():
+            resolved_filename = (subdir / filename).resolve().name
+            assert (subdir / filename).exists()
+        else:
+            resolved_filename = filename
+
         # Now check if the target file actually has that section
-        f = subdir / filename
+        f = subdir / resolved_filename
         with open(f) as fd:
             found = any(f'{section_header} "{section}"' in line for line in fd)
             if found:
-                directives[section_header] = Directive(option, filename, section)
+                directives[section_header] = Directive(
+                    option, resolved_filename, section
+                )
 
     return DirectiveSet(
         option=option,