I have the following bash script.
The problem I try to solve is really easy. When a commit in Git no starts with gh-1234 ... it should fail.
What is wrong with this bash script?
commit_regex='(gh-[0-9]+|merge)'
error_msg="Aborting commit. Your commit message is missing either a Github Issue ('gh-1111') or 'Merge'."
if ! grep -q "$commit_regex" <<< "$1"; then
echo "$error_msg" >&2
exit 1
fi
As mentioned in the comments, you need to do grep -E "$commit_regex"
From the man grep page-
-E, --extended- Interpret PATTERN as an extended regular expression (ERE, see below). (-E is specified by POSIX.)
That should solve your problem since it forces grep to expand the variable.
Also another way to achieve the same without grep :
if [[ $git_message=~ $commit_regex ]]
then
echo "$error_msg"
exit 1;
fi
Also : If the commit it "gh-1234" is mandated to be at the start of the message , you should add ^ in your regex.
gh-1234.I just took the error_msg as an example as it too had the "gh-1111" entry.
grep -E?