Bash script to define useful functions and aliases for easier git operations

.git-aliases.sh

# Git helpers

alias gadd='git add'
alias gci='git commit'
alias gco='git checkout'
alias gdiff='git diff'
alias gpull='git pull'
alias gpush='git push'
alias grba='git rebase --abort'
alias grbc='git rebase --continue'
alias grbs='git rebase --skip'
alias gsf='git showfiles'
alias gst='git status -s'
alias gsta='git status'

alias ghelp="git_aliases | format_aliases"

# These are aliases to long-name functions, making them self-documenting

alias gscf='git_show_changed_files'
alias gsnmf='git_show_new_modified_files'
alias gscrsf='git_show_changed_rspec_files'
alias gscrbf='git_show_changed_ruby_files'
alias gscerbf='git_show_changed_erb_files'
alias gscjsf='git_show_changed_js_files'
alias gsccssf='git_show_changed_css_files'
alias gscwebf='git_show_changed_web_files'
alias grspec='git_show_changed_ruby_files | pass_as_args_to_rspec'
alias grucop='git_show_changed_ruby_files | pass_as_args_to_rubocop'

git_show_changed_files() {
  if [[ -d .git ]]; then
    git diff --name-status master..
  else
    echo 1>&2 "Not a git repo: $PWD"
  fi
}

git_show_new_modified_files() {
  git_show_changed_files | filter_non_deleted_git_files
}

git_show_changed_rspec_files() {
  git_show_new_modified_files | filter_rspec_files
}

git_show_changed_ruby_files() {
  git_show_new_modified_files | filter_ruby_files
}

git_show_changed_erb_files() {
  git_show_new_modified_files | filter_erb_files
}

git_show_changed_js_files() {
  git_show_new_modified_files | filter_js_files
}

git_show_changed_css_files() {
  git_show_new_modified_files | filter_css_files
}

git_show_changed_web_files() {
  git_show_new_modified_files | filter_web_files
}

pass_as_args_to_rubocop() {
  pass_as_args_to_bundle_cmd 'rubocop'
}

pass_as_args_to_rspec() {
  pass_as_args_to_bundle_cmd 'rspec'
}

pass_as_args_to_bundle_cmd() {
  xargs bundle exec $1
}

filter_non_deleted_git_files() {
  awk '/^[^D]/ {print $2}'
}

filter_rspec_files() {
  egrep '^spec/.*_spec.rb'
}

filter_ruby_files() {
  egrep '[.]rb$'
}

filter_erb_files() {
  egrep '[.]erb$'
}

filter_css_files() {
  egrep '[.](s?css\.erb|s?css)$'
}

filter_web_files() {
  egrep '[.](html|s?css|html\.erb|s?css\.erb)'
}

filter_js_files() {
  egrep '[.][jt]s$' # include typescript also
}

git_aliases() {
 grep_aliases 'git|gscf|gsnmf|gsrsf|gsrbf'
}

format_aliases() {
  ruby -p -e "\$_ = format('%8s = %s', *(\$_.split('=', 2)))"
}

grep_aliases() {
  sorted_aliases | egrep "$1"
}

sorted_aliases() {
  alias | sort_aliases
}

sort_aliases() {
  sed -e 's/^alias //' | sort -t= -k1
}

unmerged_git_files() {
  git ls-files -u | awk '{print $4}' | sort -u
}

alias vimum='vim `unmerged_git_files`'
alias gaddum='git add `unmerged_git_files`'