GitLab CI/CD 在与其他变量值连接时将 $HOME 显示为 null

Question

我在.gitlab-ci.yaml脚本中定义了以下阶段和环境变量：

stages:
  - prepare
  - run-test

variables:
  MY_TEST_DIR: "$HOME/mytests"

prepare-scripts:
  stage: prepare
  before_script:
    - cd $HOME
    - pwd
  script:
    - echo "Your test directory is $MY_TEST_DIR"
    - cd $MY_TEST_DIR
    - pwd
  when: always
  tags:
    - ubuntutest

当我运行上述内容时，即使/home/gitlab-runner/mytests存在，我也会收到以下错误：

Running with gitlab-runner 15.2.1 (32fc1585)
  on Ubuntu20 sY8v5evy
Resolving secrets
Preparing the "shell" executor
Using Shell executor...
Preparing environment
Running on PCUbuntu...
Getting source from Git repository
Fetching changes with git depth set to 20...
Reinitialized existing Git repository in /home/gitlab-runner/tests/sY8v5evy/0/childless/tests/.git/
Checking out cbc73566 as test.1...
Skipping Git submodules setup
Executing "step_script" stage of the job script
$ cd $HOME
/home/gitlab-runner
$ echo "Your test directory is $MY_TEST_DIR"
SDK directory is /mytests
$ cd $MY_TEST_DIR
Cleaning up project directory and file based variables
ERROR: Job failed: exit status 1
       

我在这里做错了什么吗？ 为什么$HOME与其他变量一起使用时为空/NULL？

Answer 1

使用 gitlab-ci variables:指令设置变量时，$HOME 尚不可用，因为它未在 shell 中运行。
$HOME 在您启动script （或before_script ）部分时由您的 shell 设置。
如果您在script步骤中导出它，它应该是可用的，所以：

prepare-scripts:
  stage: prepare
  before_script:
    - cd $HOME
    - pwd
  script:
    - export MY_TEST_DIR="$HOME/mytests"
    - echo "Your test directory is $MY_TEST_DIR"
    - cd $MY_TEST_DIR
    - pwd
  when: always
  tags:
    - ubuntutest