git-edit-modified

#!/usr/bin/env bash

# Script to open files that have been modified in git.  Uses bash instead of
# zsh because the version of zsh available to me does not support pipefail.
#
# Runs FZF in multi-select mode. Any parameters passed to this script will be
# passed as an argument to git diff.

set -o pipefail
set -e

find_modified() {
    git_root=$(git rev-parse --show-toplevel)
    git --no-pager diff --diff-filter=ACMRTU                                   \
                        --name-only                                            \
                        --line-prefix="${git_root}/" $GIT_OPTIONS
}

filter() {
    fzf --prompt="[File] > "                                                   \
        --preview-window="right:70%"                                           \
        --preview="git diff $GIT_OPTIONS {}"                                   \
        --bind="ctrl-d:preview-page-down"                                      \
        --bind="ctrl-u:preview-page-up"                                        \
        --bind="ctrl-j:preview-down"                                           \
        --bind="ctrl-k:preview-up"                                             \
        --reverse                                                              \
        --multi                                                                \
        --exit-0                                                               \
        --select-1
}

# Stash away the options to the script. These will be passed as an argument to
# git diff. This is mostly useful for passing in --cached.
GIT_OPTIONS=$1

files=$(find_modified | filter | xargs)
$EDITOR $files