.gitlab-ci-yml正则表达式检查变量

Question

这是.gitlab-ci.yml中的一个阶段：

check:
    stage: check
    script:
    - echo "Checking if commit tag is valid"
    - [[ $CI_COMMIT_TAG =~ ^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(-(0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(\.(0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*)?(\+[0-9a-zA-Z-]+(\.[0-9a-zA-Z-]+)*)?$ ]] && echo "Git commit tag valid" || echo "Git commit tag not valid" && exit 1
    only:
    - tags

当linting它时我得到错误：

Status: syntax is incorrect 

Error: (<unknown>): did not find expected alphabetic or numeric character while scanning an alias at line 16 column 107

第16行是正则表达式行。