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#!/bin/sh
usage() {
echo "git-precheck [--quiet] [--ignore-dirty] [--ignore-untracked]"
echo ""
echo "If the current working directory is inside a git repository, examine"
echo "the repo for any abnormal state and return an exit code indicating"
echo "the status. If unclean, print a line of text describing each"
echo "condition found."
echo ""
echo " --quiet"
echo " Don't actually print anything."
echo ""
echo " --ignore-dirty"
echo " Don't consider the presence of uncommitted changes to tracked"
echo " files as an abnormal state."
echo ""
echo " --ignore-untracked"
echo " Don't consider the presence of untracked files as an abnormal"
echo " state."
echo ""
echo " Exit codes:"
echo " 0 If inside a repository and all checks return normal"
echo " 1 If untracked files detected"
echo " 2 If dirty/modified files detected"
echo " 3 If any ongoing git operation is in progress"
echo " 4 If not inside a git repository"
echo ""
echo " Exit any other value on error or if 'precheck' operation is"
echo " not completed, such as when viewing this help text."
exit 128
}
quiet=""
opt_dirty="true"
opt_untracked="true"
while true; do
case "$1" in
--quiet) quiet="true" ;;
--ignore-dirty) opt_dirty="" ;;
--ignore-untracked) opt_untracked="" ;;
--help) usage ;;
-h) usage ;;
*) break
esac
shift
done
if [ $# -ne 0 ]; then
printf 'git-precheck: Unrecognized option given: %s\n' "$1"
exit 128
fi
CS="\\033[0;31m"
CE="\\033[0m"
cond=""
dirty=""
untracked=""
# If outside repo, always exit immediately.
if ! [ "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = "true" ]; then
[ -z "$quiet" ] && printf '%bnot inside a git work tree%b\n' "$CS" "$CE"
exit 4
fi
# Otherwise, only exit immediately if --quiet was given.
# Keep running to report all potential conditions that apply.
check() {
if [ -e "$(git rev-parse --git-path "$1" 2>/dev/null)" ]; then
[ -n "$quiet" ] && exit 3
printf '%b%s in progress%b\n' "$CS" "$2" "$CE"
cond="true"
fi
}
check rebase-merge rebase
check rebase-apply rebase/am
check MERGE_HEAD merge
check REVERT_HEAD revert
check CHERRY_PICK_HEAD cherry-pick
check BISECT_START bisect
if [ -n "$opt_dirty" ] || [ -n "$opt_untracked" ]; then
git_status="$(git status --porcelain 2>/dev/null)"
if [ -n "$opt_dirty" ] && printf '%s' "$git_status" | grep -qvE '^\?\? '; then
[ -n "$quiet" ] && exit 2
printf '%bmodified files detected%b\n' "$CS" "$CE"
dirty="true"
fi
if [ -n "$opt_untracked" ] && printf '%s' "$git_status" | grep -qE '^\?\? '; then
[ -n "$quiet" ] && exit 1
printf '%buntracked files detected%b\n' "$CS" "$CE"
untracked="true"
fi
fi
# Still here? Return the highest applicable code based on what has been seen.
[ -n "$cond" ] && exit 3
[ -n "$dirty" ] && exit 2
[ -n "$untracked" ] && exit 1
exit 0
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