Git探測你需要的比特 diff-index
, rev-parse --verify
與ls-files --others
也許rev-parse --show-cdup
。
以下shell程序使用這些Git管道命令,具有可調整的未跟蹤/忽略處理,並且對所有可能的錯誤情況都非常小心。
#!/bin/sh
# warn-unclean: print a warning if the working tree and index are not clean
# For utmost strictness, set check_untracked=yes and check_ignored=yes.
# When both are 'yes', verify that working tree and index are identical to HEAD.
# When only check_untracked is yes, extra ignored files are allowed.
# When neither is yes, extra untracked files and ignored files are allowed.
check_untracked=yes
check_ignored=yes
warn() {
echo 'Warning: '"$*" \
'This output may not be reproducible.'
}
# Compare HEAD to index and/or working tree versions of tracked files
git diff-index --quiet HEAD
case $? in
0)
if test "$check_untracked" != yes; then
clean=yes
else
# Still need to check for untracked files
or_ignored=''
exclude=--exclude-standard
if test "$check_ignored" = yes; then
or_ignored=' or ignored'
exclude=''
fi
(
# Move to top level of working tree
if up="$(git rev-parse --show-cdup)"; then
test -n "$up" && cd "$up"
else
echo 'error running "git rev-parse --show-cdup"'
exit 129
fi
# Check for untracked files
git ls-files --others $exclude --error-unmatch . >/dev/null 2>&1
case $? in
0) # some untracked/ignored file is present
warn 'some untracked'"$or_ignored"' file is present.'
exit 1
;;
1) # no untracked files
exit 0
;;
*)
echo 'error running "git diff-index"!'
exit 129
;;
esac
)
case $? in
0) clean=yes ;;
1) clean=no ;;
*) exit $? ;;
esac
fi
test "$clean" = yes &&
if c="$(git rev-parse --verify HEAD)"; then
echo 'Current commit: '"$c"
else
echo 'error running "git rev-parse --verify"!'
fi
;;
1)
warn 'some tracked file has an uncommitted change.'
;;
*)
echo 'error running "git diff-index"!'
exit 129
;;
esac
你可能會在一些exit
■如果你想它的退出代碼在所有情況下有意義的撒。
如果你不喜歡所有的錯誤處理或未經跟蹤/忽略處理,然後一些短期可能就夠:
if git diff-index --quiet; then
printf 'Current commit: %s\n' "$(git rev-parse --verify HEAD)
else
echo 'Warning: …'
fi
您還可以檢查未跟蹤文件(可進行調整的忽略等)以簡潔的方式,無錯誤處理:
git ls-files --others --exclude-standard --error-unmatch \
"./$(git rev-parse --show-cdup)" >/dev/null 2>&1