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dotbare/scripts/fcheckout
2020-05-19 17:51:13 +10:00

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#!/usr/bin/env bash
#
# checkout files/commit/branches using fzf
#
# @params
# Globals
# ${mydir}: current directory of the script, used for imports
# ${action_type}: what type of git commands to use, branch, commit files, modified files
# ${selected_branch}: selected_branch to switch
# ${selected_files}: selected_files to checkout to the version in HEAD
# ${selected_commit}: selected commit to checkout
# ${confirm}: confirm status of the user
# Arguments
# -h: show help message
# -a: search all files instead of just the modified files
# -b: search branch and checkout branch
# -c: search commit and checkout commit
set -e
set -f
mydir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
source "${mydir}"/../helper/set_variable.sh
source "${mydir}"/../helper/get_confirmation.sh
source "${mydir}"/../helper/git_query.sh
function usage() {
echo -e "Usage: dotbare fcheckout [-h] [-a] [-b] [-c] ...\n"
echo -e "Checkout files/commit/branch using fzf\n"
echo -e "Default: checkout files back to HEAD (Reset changes back to HEAD)\n"
echo -e "optional arguments:"
echo -e " -h\t\tshow this help message and exit"
echo -e " -a\t\tsearch all files and select a commit to checkout for selected files"
echo -e " -b\t\tlist all branch and checkout/switch the selected branch"
echo -e " -c\t\tlist all commits and checkout selected commit"
}
action_type="modified"
while getopts ":habcy" opt
do
case "$opt" in
a)
action_type="allfiles"
;;
b)
action_type="branch"
;;
c)
action_type="commit"
;;
y)
confirm="y"
;;
h)
usage
exit 0
;;
*)
echo "Invalid option: ${OPTARG}" >&2
usage
exit 1
;;
esac
done
if [[ "${action_type}" == "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 "${selected_branch}"
exit 0
elif [[ "${action_type}" == "commit" ]]; then
# checkout commit
selected_commit=$(get_commit 'Select a commit to checkout')
[[ -z "${selected_commit}" ]] && exit 0
/usr/bin/git --git-dir="${DOTBARE_DIR}" --work-tree="${DOTBARE_TREE}" checkout "${selected_commit}"
exit 0
else
# checkout files (reset file changes back to HEAD)
if [[ "${action_type}" == "modified" ]]; 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 -- ${selected_files}"
[[ -z "${confirm}" ]] && confirm=$(get_confirmation "Confirm?")
[[ "${confirm}" != 'y' ]] && exit 1
# shellcheck disable=SC2086
/usr/bin/git --git-dir="${DOTBARE_DIR}" --work-tree="${DOTBARE_TREE}" checkout -- ${selected_files}
elif [[ "${action_type}" == "allfiles" ]]; then
selected_files=$(get_git_file 'select a file to checkout' | tr '\n' ' ')
[[ -z "${selected_files}" ]] && exit 0
# continue select a commit and then checkout the file back to the selected commit
selected_commit=$(get_commit 'select the target commit' "${selected_files}")
[[ -z "${selected_commit}" ]] && exit 0
echo "(dryrun) dotbare checkout ${selected_commit} -- ${selected_files}"
[[ -z "${confirm}" ]] && confirm=$(get_confirmation "Confirm?")
[[ "${confirm}" != 'y' ]] && exit 0
# shellcheck disable=SC2086
/usr/bin/git --git-dir="${DOTBARE_DIR}" --work-tree="${DOTBARE_TREE}" checkout "${selected_commit}" ${selected_files}
fi
fi