fish function that prepares a git commit command with message containing the jira ticket number

commit.fish

# save as ~/.config/fish/functions/commit.fish
# Use:
#   Assuming you are in a git repository of a bitbucket / jira branch using the atlassian jira git flow conventions
#   example "feature/EXP-1337-cool-new-feature
#
#   MAC USERS CHANGE "sed -r" to "sed -E"
#
#   > commit
#     will expand to
#   > git commit -m 'EXP-1337: '
#     resting the cursor just before the last quote
#   
set _ticket (git rev-parse --abbrev-ref HEAD 2>/dev/null | \
                sed -r 's#^(feature|hotfix|bugfix|experiment)/?([[:alpha:]]+-[[:digit:]]+).*$#\2#')
  commandline -r "git commit -m '$_ticket: '"
  commandline -C (expr (commandline -C) - 1)
end

Please also see https://gist.github.com/MaZderMind/1c79bf1be1a5bf92c3a10608e8710c3c#file-commit-fish