git commands for quickly iterating on code locally

git-checkpoint

#!/bin/sh

# Put this script in your path and execute it like so:
# `git checkpoint`
# or
# `git checkpoint lib/foo/foo_thing.ex`


# Bail as soon as an error happens
set -e

function exit_cleanup {
  popd >& /dev/null
}

function add_files {
  while [ "$#" != "0" ];
  do
    git add $1
    echo "Added $1 to checkpoint"
    shift
  done
}

# Push working dir so we don't confuse the user later
pushd . >& /dev/null

# Pop previously pushed working dir when we're done
trap "exit_cleanup" SIGHUP
trap "exit_cleanup" SIGINT
trap "exit_cleanup" SIGTERM

# Get last commit
last_commit=`git reflog -n 1`

# Is checkpoint commit?
# A checkpoint commit is a commit when the word
# "CHECKPOINT" appears verbatim in the comments.
is_ckpt=`echo ${last_commit} | grep CHECKPOINT | wc -l | sed -e 's/^[ \t]*//'`

# Get root of git repo
git_root=`git rev-parse --show-toplevel`

# args to use when commit
commit_args="-m \"CHECKPOINT\""

# If comment for last commit is "WIP" or "CHECKPOINT"
# then amend previous commit since it's local only.
if [ "${is_ckpt}" == "1" ]; then
  commit_args="${commit_args} --amend"
fi

# Explicitly add any files mentioned by the user
add_files $@

# Run the git commit
cd ${git_root} && git commit ${commit_args}

git-is-checkpoint

#!/bin/sh

# Put this script in your path and call it like so:
# `git is-checkpoint`

# Get last commit
last_commit=`git reflog -n 1`

# Was last commit a checkpoint commit?
is_ckpt=`echo ${last_commit} | grep CHECKPOINT | wc -l | sed -e 's/^[ \t]*//'`

# Get root of git repo
git_root=`git rev-parse --show-toplevel`

# args to use when commit
commit_args="-m \"CHECKPOINT\""

if [ "${is_ckpt}" == "1" ]; then
  # if last commit was a checkpoint commit then
  # print "yes" on stdout and exit w/status 0.
  echo "yes"
  exit 0
else
  # if last commit wasn't a checkpoint commit then
  # print "no" on stdout and exit with w/status 1.
  echo "no"
  exit 1
fi