generate-github-references

#!/bin/bash
#
# generate-github-references
#
[[ ! -d '.git' ]] && { echo 'not in a git directory' >&2; exit 1; }

term="$term"
name="$name"
username="$username"
organization="$organization"

[[ -z "$name" ]] && name="$(git config --local repository.name)"
[[ -z "$name" ]] && name="$(basename "$PWD")"
[[ -z "$username" ]] && username="$(git config github.username)"
[[ -z "$organization" ]] && organization="$(git config github.organziation)"

[[ -z "$term" ]] && { echo 'no $term provided' >&2; exit 1; }
[[ -z "$username" ]] && { echo 'no github $username provided' >&2; exit 1; }

commit="$(git rev-parse 'HEAD')"

urlbase="https://github.com/$username/$name/blob/$commit"
[[ ! -z "$organization" ]] && urlbase="/https://github.com/$organization/$name/blob/$commit"

grep -n "$term" ** | while read -r line
do
  filename="${line%%:*}"
  extname="${filename##*.}"
  [[ "$extname" = "$filename" ]] && extname=''

  line="${line#$filename}"
  line="${line#:*}"

  linenumber="${line%%:*}"

  line="${line#$linenumber}"
  line="${line#:*}"

  text="$line"

  url="$urlbase/$filename#L$linenumber"
  [[ "$extname" == 'md' ]] && url="$urlbase/$filename?plain=1#L$linenumber"

  reftext="[$filename:$linenumber]($url)"

  echo "$reftext"
done