[psadauskas]

I have this one in mine: https://github.com/paul/dotfiles/blob/master/git/.gitconfig#...

    # make a fixup commit for the last time the file was modified
    cff   = "!f() { [ -n $@ ] && git add $@ && git commit --fixup $(git last-sha $@); }; f"
    # Get latest sha for file(s)
    last-sha = log -n1 --pretty=format:%h --grep 'fixup!' --invert-grep

Given a file like `git cff path/to/file.rb`, It'll find the last commit that touched that file, and make a fixup commit for it. Its great for the try-this-change-on-CI cycle: Change the Dockerfile, git cff Dockerfile, push, repeat, without it screwing up because you changed a different file while you were working on it.

[mdaniel]

It won't matter until it does, but $@ expands arguments into separate words but those expansions are themselves only word-preserved if the $@ is itself quoted. The [ will probably get away with what you want, but its use in $(git add) and $(git last-sha) almost certainly will not

  $ cat > tmp.sh <<'FOO'
  for a in $@;   do echo "a=$a"; done
  echo
  for b in "$@"; do echo "b=$b"; done
  echo
  for c in $*;   do echo "c=$c"; done
  echo
  for d in "$*"; do echo "d=$d"; done
  echo
  FOO

  $ bash tmp.sh 'alpha beta' $'charlie\ndelta'
  a=alpha
  a=beta
  a=charlie
  a=delta

  b=alpha beta
  b=charlie
  delta

  c=alpha
  c=beta
  c=charlie
  c=delta

  d=alpha beta charlie
  delta

[psadauskas]

Yeah, you're probably right. I guess I haven't run it on any files with spaces in the 6 years since I added it to my dotfiles.