useful bash scripts for finding files/changed files/running specs etc

current-branch

#!/usr/bin/env bash
git rev-parse --abbrev-ref HEAD | tail -2

directory-from-file

#!/usr/bin/env bash
while read line
do
  dirname $line
done

exists

#!/usr/bin/env bash
while read line
do
if [ -e $line ]
then
  echo $line
fi
done < "${1:-/dev/stdin}"

is-directory

#!/usr/bin/env bash
while read line
do
if [ -d "$line" ]
then
  echo "$line"
fi
done < "${1:-/dev/stdin}"

pre-push

#!/usr/bin/env bash
if [ ! -e .base-branch ]; then
  branch=master
else
  branch=$(cat .base-branch)
fi
set -o verbose

show-changed-files $branch | grep "\.rb$"  | exists | xargs rubocop -a | grep "no offenses detected" || (echo "rubocop failed" && exit 1)

run-matching

#!/usr/bin/env bash
ls spec/**/*_spec.rb | grep $1 | xargs zeus rspec

show-changed-directories

#!/usr/bin/env bash
show-changed-files | directory-from-file | sort | uniq

show-changed-files

#!/usr/bin/env bash
main=${1:-master}
git diff --name-only $(current-branch)  $(git merge-base $(current-branch) $main) | exists