Notes

Notes to refer back to at a later date.

git

• After doing a large rebase check you only changed what you intended with no surprises using git diff origin/branchname HEAD -- filename before pushing back to origin.

• Before a history rewrite (squash, rebase, reset --hard, …) drop a safety tag on HEAD:

  1 2 3

  git tag backup-refs HEAD # do the thing git tag -d backup-refs # once happy it worked

  To recover if things go wrong:

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  git log backup-refs # inspect the old state git diff HEAD backup-refs # compare against the new state git reset --hard backup-refs # restore the old state

  The tag keeps the old history reachable (reflog entries expire) and is trivially deleted. For a dated backup tag use git tag backup-$(date +%Y%m%d) HEAD.

helix

• Multiline Cursors
  • On instances of a word
    Add word to search buffer with /<word> or *, select it with visual mode V and press n to select the instances you want. Then enter insert mode with multiple cursors!

Librewolf

• When installing via homebrew on mac it raises an issue due to removal of the --no-quarantine flag by brew. To get around this install as normal, but then run:

  1	sudo xattr -r -d com.apple.quarantine /Applications/LibreWolf.app

  Librewolf codeberg source

pFUnit

• There is an implicit limit on test names of 36 characters. The @test macro expands names to:

  1	call suite%addTest(makeCustomTest('<name>', <name>, testParameter))

  and Fortran lines are limited to 132 characters. The 2023 standard raises the limit to 10,000 characters, and there exist compiler flags to adjust it.

Quarto

• To get a pdf of a quarto presentation from a browser use decktape .
  • To preserve animations (somewhat) use:

    1	npx decktape reveal <slides URL> <output file>.pdf --pause 500 --fragments --progress