Note. This issue is from today’s work (2023.12.22).
We have run into issues related to special characters in git branch/tag names, which cause complications within the Linux/git shell environment and require escaping. To prevent these problems, we are revising the rules for branch/tag names to allow only alphanumeric characters (0-9, a-z, A-Z), dash (-), and underscore (_) characters.
Git hook script guidelines:
Hook pre-receive script:
#!/bin/bash
shopt -s nocasematch
while read oldrev newrev refname; do
if [[ $newrev == "0000000000000000000000000000000000000000" ]]; then
# Skip the name validation check for branch or tag deletion
continue
fi
if [[ $refname =~ ^refs/heads/.* ]]; then
branch_name=$(echo $refname | cut -d'/' -f3)
if ! [[ $branch_name =~ ^[0-9a-zA-Z_-]+$ ]]; then
echo "Error: Branch name $branch_name does not match the allowed characters [0-9a-zA-Z_-]"
exit 1
fi
elif [[ $refname =~ ^refs/tags/.* ]]; then
tag_name=$(echo $refname | cut -d'/' -f3)
if ! [[ $tag_name =~ ^[0-9a-zA-Z_-]+$ ]]; then
echo "Error: Tag name $tag_name does not match the allowed characters [0-9a-zA-Z_-]"
exit 1
fi
fi
done
exit 0
In this script, the condition [[ $newrev == "0000000000000000000000000000000000000000" ]] checks if the new revision is all zeros, which is the case for branch or tag deletion. Condition [[ $newrev =~ "000000000000000" ]] can be an approximate replacement.