Question

我正在使用travis-ci测试我的github存储库，发现在3到10分钟的时间里下载了deb软件包。它们只有127 MB大。

我检查了travis-ci/Caching Dependencies and Directories ，但不支持apt-get。

该怎么做？

Answer 1

可以通过将内容缓存在非root用户可以访问的另一个文件夹中并将其下的所有mv deb缓存到/var/cache/apt/archives/中来实现。安装后，cp将它们返回到该文件夹。

注意：

我建议您将YOUR_DIR_FOR_DEB_PACKAGES放在~下的某个地方。

# .travis.yml

sudo: required

cache:
  - directories:
    - $YOUR_DIR_FOR_DEB_PACKAGES # This must be accessible for non-root users

addons:
  apt:
    sources:
      # Whatever source you need

# Download the dependencies if it is not cached
# All the "echo" and "ls" in "before_script" can be remove since they are only used for debugging.
before_script:
  - echo "Print content of $YOUR_DIR_FOR_DEB_PACKAGES"
  - ls $YOUR_DIR_FOR_DEB_PACKAGES
  - echo "Check whether apt-get has no cache"
  - ls /var/cache/apt/archives
  -
  - echo "Start loading cache"
  - |
    exist() {
        [ -e "$1" ]
    }
  - |
    if exist ~/$YOUR_DIR_FOR_DEB_PACKAGES/*.deb
    then
        sudo mv ~/$YOUR_DIR_FOR_DEB_PACKAGES/*.deb /var/cache/apt/archives/
        ls /var/cache/apt/archives
    fi
  -
  - echo "Start to install software"
  - sudo apt-get update
  - sudo apt-get install -y --no-install-recommends --no-install-suggests $THE_PACKAGES_REQUIRED
  -
  - echo "Start updating the cache"
  - cp /var/cache/apt/archives/*deb ~/$YOUR_DIR_FOR_DEB_PACKAGES/

script:
  - # Do whatever you want here.

Answer 2

在我看来，这不是推荐的做法。根据{{3}}

快速安装但下载缓慢的大文件不会从缓存中受益，因为它们需要很长时间才能从缓存中下载来源：

Debian软件包

如何在travis中缓存apt-get的下载包？

2 个答案: