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git-restore-with-filter-ui

Script to restore files from the stage area by filtering extensions.

Dependencies

brew install dialog

How to use it

You can pass whatever extension in order to filter the group of files you want to restore from the stage area.

./git-restore-with-filter-ui.sh txt

./git-restore-with-filter-ui.sh java

./git-restore-with-filter-ui.sh sh

Code

#!/usr/bin/env bash
#
# git-restore-with-extension-ui.sh restore files from stage area by extension file

extension=${1:?"Error: First parameter should be an extension file."}

readonly TITLE_MSG="Tracked files to unstaged with extension (${extension}):"
readonly ERROR_MSG="Tracked files with extension: ${extension} don't exist"
readonly ERROR_REPO="Current directory is not a git repository"
readonly WARN_MSG="You did not select any file to restore with ${extension} extension"
readonly SUCCESS_MSG="🟢 Selected files were unstaged"

#######################################
# A function to print out error messages 
# Globals:
#   
# Arguments:
#   None
#######################################
error() {
  echo "[🔴 $(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
}

#######################################
# A function to print out warning messages 
# Globals:
#   
# Arguments:
#   None
#######################################
warning() {
  echo "[🟡 $(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
}

git rev-parse --is-inside-work-tree >/dev/null 2>&1 || { error ${ERROR_REPO}; return 1; }

staged_files=$(git --no-pager diff --name-only --cached --diff-filter=AM \
  | grep ".*.${extension}$")

if [[ -n ${staged_files} ]]; then
  let counter=0
  line=$(echo "${staged_files}" | grep ".*.${extension}$" \
    | while read staged_file; do
        let "counter+=1"
        echo "\"${staged_file}\" \"${counter}\" off"
      done)
  selected_files=$(echo ${line} | xargs dialog --stdout --checklist ${TITLE_MSG} 0 0 0)
  [[ -n "${selected_files}" ]] \
    && echo "${selected_files}" | xargs git restore --staged \
    && echo "${SUCCESS_MSG}" \
    || warning ${WARN_MSG}
else
  error ${ERROR_MSG}
  return 1
fi