持续集成与持续部署（六）02-CircleCI——CircleCI配置Node.js应用之.circleciconfig.yml配置文件 & deploy.sh文件内容

持续集成与持续部署（六）02-CircleCI——CircleCI配置Node.js应用之.circleci/config.yml配置文件 & deploy.sh文件内容

配置Node.js应用

.circleci/config.yml配置文件

version: 2
jobs:
  build:
    docker:
      - image: circleci/node:10
    branches:
      only:
        - master
    steps:
      - add_ssh_keys:
          fingerprints:
            - "c5:20:8e:79:81:19:fd:c1:6c:c4:fb:41:58:92:9d:4f"
      - checkout
      - restore_cache:
          keys:
            # fallback to using the latest cache if no exact match is found
            - dependencies-
      - run:
          name: Install
          command: yarn install
      - save_cache:
          paths:
            - node_modules
          key: dependencies-
      - run:
          name: build github pages
          command: yarn build
      - run:
          name: Prepare shell commands
          command: chmod +x scripts/deploy.sh
      - run:
          name: Run deploy scripts
          command: ./scripts/deploy.sh

这里以发布到github page为示例：

deploy.sh文件的内容：

#!/bin/sh
# ideas used from https://gist.github.com/motemen/8595451

# Based on https://github.com/eldarlabs/ghpages-deploy-script/blob/master/scripts/deploy-ghpages.sh
# Used with their MIT license https://github.com/eldarlabs/ghpages-deploy-script/blob/master/LICENSE

# abort the script if there is a non-zero error
set -e

# show where we are on the machine
pwd
remote=$(git config remote.origin.url)

echo 'remote is: '$remote

# make a directory to put the gp-pages branch
mkdir gh-pages-branch
cd gh-pages-branch
# now lets setup a new repo so we can update the gh-pages branch
git config --global user.email "$GH_EMAIL" > /dev/null 2>&1
git config --global user.name "$GH_NAME" > /dev/null 2>&1
git init
git remote add --fetch origin "$remote"

echo 'email is: '$GH_EMAIL
echo 'name is: '$GH_NAME
echo 'sitesource is: '$siteSource

# switch into the the gh-pages branch
if git rev-parse --verify origin/gh-pages > /dev/null 2>&1
then
    git checkout gh-pages
    # delete any old site as we are going to replace it
    # Note: this explodes if there aren't any, so moving it here for now
    git rm -rf .
else
    git checkout --orphan gh-pages
fi

# copy over or recompile the new site
cp -a "../${siteSource}/." .

ls -la

# stage any changes and new files
git add -A
# now commit, ignoring branch gh-pages doesn't seem to work, so trying skip
git commit --allow-empty -m "Deploy to GitHub pages [ci skip]"
# and push, but send any output to /dev/null to hide anything sensitive
git push --force --quiet origin gh-pages
# go back to where we started and remove the gh-pages git repo we made and used
# for deployment
cd ..
rm -rf gh-pages-branch

echo "Finished Deployment!"

说明：

>/dev/null 2>&1的含义

文件描述符

当执行shell命令时，会默认打开3个文件，每个文件有对应的文件描述符来方便我们使用：

类型	文件描述符	默认情况	对应文件句柄位置
标准输入（standard input）	0	从键盘获得输入	/proc/slef/fd/0
标准输出（standard output）	1	输出到屏幕（即控制台）	/proc/slef/fd/1
错误输出（error output）	2	输出到屏幕（即控制台）	/proc/slef/fd/2

> 代表重定向到哪里?

例如：echo "123" > /home/123.txt
1 表示stdout标准输出，系统默认值是1，所以>/dev/null等同于1>/dev/null
2 表示stderr标准错误
& 表示等同于的意思，2>&1，表示2的输出重定向等同于1

参考资料：

Shell脚本———— /dev/null 2>&1详解

shell中>/dev/null 2>&1

Linux Shell 1>/dev/null 2>&1 含义