NOTE: Only supports Slic3r, Simplify3D, and Cura currently; suggest more in issues; contributions welcome!

Analyses gcode for slicer settings comments and adds additional metadata of such settings. Useless without plugin(s) to use the metadata.

Install via the bundled Plugin Manager or manually using this URL:

https://github.com/larsjuhw/OctoPrint-SlicerSettingsParser/archive/master.zip

Cura doesn't natively support injecting the slicer settings into the gcode, so you must add this to your start/end gcode. Preferably add it to the start gcode, so that you can configure this plugin to stop parsing when it sees the first extrusion command.

Cura

If you use the start/end gcode provided above, use this regex:

^;\s*(?P<key>\w+[\w\s]*) : (?P<val>.*)

Slic3r

^; (?P<key>[^,]*?) = (?P<val>.*)

Simplify3D

^;   (?P<key>.*?),(?P<val>.*)

Other

This plugin uses python regexes to parse the gcode. Syntax can be easily found on the web. There should be two named capturing groups, key and val. Multiple regexes should be listed on seperate lines, ordered by precedence. Any chars are allowed in the groups; \n will be replaced by newlines.

If you can not figure it out yourself, open an issue and I can take a look.