Deprecate date IDs and use regular link style

[srid]

This resolves #148, as well as simplifies things a bit.

1. Switch to using short random hash (eg: b6f044c8) as the default zettel filename. This is same as the current custom ID type (arbitrary length of alpha numeric letters with hyphens and underscores). Date ID will be supported, but won't be the default in neuron new.

   • Add random hash support
   • Make random hash the default
   • Migrate neuron.zettel.page IDs to be consistent? (cancelled; not to break URLs)

2. Add an (optional) "date" metadata field to the zettels to indicate the creation date of the Zettel (populated by neuron new).

3. Switch zettel link style to be like regular links, i.e, instead of the ID put the title as the link text (with ID not appearing at all, but only as hover text). It will look like this:

Since custom IDs can be of arbitrary length it makes little sense to try to visually emphasize them in the UI, hence no. 3.

[felko]

Here is a python script that might help the migration https://gist.github.com/felko/f71582747ea9bab8ef2f38e7730991b6. It replaces file names and links to zettels with date IDs with generated hashes, and adds a date field in the metadata of each zettel. Usage: python3.8 migrate.py source_zettelkasten_dir target_zettelkasten_dir

[srid]

I've adapted this script with a few changes:

• Limit the script to zettels created with date ID only (so existing zettels using custom or hash ID are left alone)
• Use creation date encoded in the date ID instead of filesystem stat (which would be inaccurate in git checkouts)
• Delete original zettel as soon as the new one is successfully written. You can do a git add . afterwards and do a git status to see what's changed.

https://gist.github.com/srid/a1321d559fd1a5fe464bb20c1a536107

[srid]

All done.