brew/Library/Homebrew/cmd/update-reset.sh

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#: * `update-reset` [<repository> ...]
#:
#: Fetch and reset Homebrew and all tap repositories (or any specified <repository>) using `git`(1) to their latest `origin/HEAD`.
#:
#: *Note:* this will destroy all your uncommitted or committed changes.
# Replaces the function in Library/Homebrew/brew.sh to cache the Git executable to provide
# speedup when using Git repeatedly and prevent errors if the shim changes mid-update.
git() {
if [[ -z "${GIT_EXECUTABLE}" ]]
then
# HOMEBREW_LIBRARY is set by bin/brew
# shellcheck disable=SC2154
GIT_EXECUTABLE="$("${HOMEBREW_LIBRARY}/Homebrew/shims/shared/git" --homebrew=print-path)"
fi
"${GIT_EXECUTABLE}" "$@"
}
homebrew-update-reset() {
local option
local DIR
local -a REPOS=()
for option in "$@"
do
case "${option}" in
-\? | -h | --help | --usage)
brew help update-reset
exit $?
;;
--debug) HOMEBREW_DEBUG=1 ;;
-*)
[[ "${option}" == *d* ]] && HOMEBREW_DEBUG=1
;;
*)
REPOS+=("${option}")
;;
esac
done
if [[ -n "${HOMEBREW_DEBUG}" ]]
then
set -x
fi
if [[ -z "${REPOS[*]}" ]]
then
REPOS+=("${HOMEBREW_REPOSITORY}" "${HOMEBREW_LIBRARY}"/Taps/*/*)
fi
2018-10-04 09:31:37 +01:00
for DIR in "${REPOS[@]}"
do
[[ -d "${DIR}/.git" ]] || continue
if ! git -C "${DIR}" config --local --get remote.origin.url &>/dev/null
then
opoo "No remote 'origin' in ${DIR}, skipping update and reset!"
continue
fi
ohai "Fetching ${DIR}..."
git -C "${DIR}" fetch --force --tags origin
git -C "${DIR}" remote set-head origin --auto >/dev/null
echo
ohai "Resetting ${DIR}..."
head="$(git -C "${DIR}" symbolic-ref refs/remotes/origin/HEAD)"
head="${head#refs/remotes/origin/}"
git -C "${DIR}" checkout --force -B "${head}" origin/HEAD
echo
done
}