[Added][Worksheet] Support for relative paths

Making them relative to the project file.
When missing we use the PCB/SCH path

Closes #879

Author: set-soft

CHANGELOG.md

@@ -31,6 +31,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Export_3D: `center` option to `origin` (#871)
 - Compress/Copy Files: Now `dest` also expands %X patterns (can be disabled)
   (#873)
+- Worksheet: Support for paths relative to the project (#879)
 
 ### Fixed
 - User.N layer numbering. I.e. pcb_print issues with their numbering (#808)

docs/source/Changelog.rst

@@ -55,6 +55,7 @@ Added
 -  Export_3D: ``center`` option to ``origin`` (#871)
 -  Compress/Copy Files: Now ``dest`` also expands %X patterns (can be
    disabled) (#873)
+-  Worksheet: Support for paths relative to the project (#879)
 
 Fixed
 ~~~~~

kibot/kicad/config.py

@@ -665,7 +665,7 @@ def fix_page_layout_k6_key(key, data, dest_dir, forced, no_copy_embedded, is_pcb
                             logger.debug("** Not patching the SCH worksheet because we don't have a SCH")
                             return pl
                 else:
-                    fname = fix_windows(KiConf.expand_env(pl))
+                    fname = fix_windows(KiConf.expand_env(pl, ref_dir=GS.pro_dir or (GS.pcb_dir if is_pcb else GS.sch_dir)))
                 if os.path.isfile(fname):
                     dest = os.path.join(dest_dir, key+'.kicad_wks')
                     logger.debug(f'Copying {fname} -> {dest}')