Git grep tricks for CMSSW

filetypeless.sh

#!/bin/sh
# Shell script to start Vim with less.vim.
# Read stdin if no arguments were given and stdin was redirected.

## modified by Pieter David, June 2017: take a filename-like argument to deduct the filetype from, but always read from stdin
## suggested git alias: view = "!v() { git show $1 | ~/.vim/macros/filetypeless.sh $1; }; v"

if test -t 1; then
  if test $# = 0; then
    echo "Missing filename" 1>&2
    exit
  else
    ftcmd=$(vim -es --cmd "filetype on" "${1}" -c ':exec ":set filetype?" | exec ":q!"')
    vim -R --cmd 'let no_plugin_maps = 1' -c "set ${ftcmd}" -c 'runtime! macros/less.vim' -
  fi
else
  # Output is not a terminal, cat arguments or stdin
  if test $# = 0; then
    if test -t 0; then
      echo "Missing filename" 1>&2
      exit
    fi
    cat
  else
    cat "$@"
  fi
fi