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dotbare/scripts/fcheckout

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#!/bin/bash
#
# checkout files/commits/branches using fzf
#
# @params
# Globals
# ${mydir}: current directory of the script, used for imports
# ${all_files}: search all tracked files instead of just the modified files
# ${branch}: checkout branch
# ${selected_branch}: selected_branch to switch
# ${selected_files}: selected_files to checkout to the version in HEAD
# Arguments
# -h: show help message
# -a: search all files instead of just the modified files
# -b: search branch and checkout branch
# -c: search commits and checkout commits
set -e
mydir="${0%/*}"
source "${mydir}"/../helper/set_variable.sh
source "${mydir}"/../helper/get_confirmation.sh
source "${mydir}"/../helper/git_query.sh
function usage() {
echo -e "Usage: dotbare fcheckout [-h] [-a] [-b] [-c] ...\n"
echo -e "Checkout files/commits/branch using fzf"
echo -e "By default: checkout files back to HEAD (Reset changes back to HEAD)\n"
echo -e "optional arguments:"
echo -e " -h\t\tshow this help message and exit"
echo -e " -a\t\tsearch all files and select a commit to checkout for selected files"
echo -e " -b\t\tcheckout branch"
echo -e " -c\t\tcheckout commit"
}
all_files=""
branch=""
commits=""
while getopts ":habcC" opt
do
case "$opt" in
a)
all_files='true'
break
;;
b)
branch='true'
break
;;
c)
commits='true'
break
;;
h)
usage
exit 0
;;
*)
echo "Invalid option: ${OPTARG}" >&2
usage
exit 1
;;
esac
done
if [[ -n "${branch}" ]]; then
# checkout branch
selected_branch=$(get_branch 'Select a branch to checkout')
[[ -z "${selected_branch}" ]] && exit 0
/usr/bin/git --git-dir="${DOTBARE_DIR}" --work-tree="${DOTBARE_TREE}" checkout "${selected_branch}"
exit 0
elif [[ -n "${commits}" ]]; then
# checkout commits
selected_commits=$(get_commit 'Select a commit to checkout')
[[ -z "${selected_commits}" ]] && exit 0
/usr/bin/git --git-dir="${DOTBARE_DIR}" --work-tree="${DOTBARE_TREE}" checkout "${selected_commits}"
exit 0
else
# checkout files (reset file changes back to HEAD)
if [[ -z "${all_files}" ]]; then
selected_files=$(get_modified_file 'select a file to checkout version in HEAD' | tr '\n' ' ')
[[ -z "${selected_files}" ]] && exit 0
echo "(dryrun) dotbare checkout -- ${selected_files}"
confirm=$(get_confirmation "Confirm?")
[[ "${confirm}" != 'y' ]] && exit 0
/usr/bin/git --git-dir="${DOTBARE_DIR}" --work-tree="${DOTBARE_TREE}" checkout -- ${selected_files}
else
selected_files=$(get_git_file 'select a file to checkout' | tr '\n' ' ')
echo "${selected_files}"
[[ -z "${selected_files}" ]] && exit 0
# continue select a commit and then checkout the file back to the selected commit
selected_commits=$(/usr/bin/git --git-dir="${DOTBARE_DIR}" --work-tree="${DOTBARE_TREE}" \
log --oneline --color=always --decorate=short \
| fzf --no-multi --header="${header}" --preview "echo {} \
| awk '{print \$1}' \
| xargs -I __ /usr/bin/git --git-dir=${DOTBARE_DIR} --work-tree=${DOTBARE_TREE} \
diff --color=always __ $selected_files" \
| awk '{print $1}')
[[ -z "${selected_commits}" ]] && exit 0
echo "(dryrun) dotbare checkout ${selected_commits} -- ${selected_files}"
confirm=$(get_confirmation "Confirm?")
[[ "${confirm}" != 'y' ]] && exit 0
/usr/bin/git --git-dir="${DOTBARE_DIR}" --work-tree="${DOTBARE_TREE}" checkout "${selected_commits}" ${selected_files}
fi
fi