如果需要 npm 检查和更新包 [英] npm check and update package if needed
问题描述
我们需要将 Karma 测试运行器集成到 TeamCity 中，为此我想给系统工程师提供一个小脚本(powershell 或其他):
We need to integrate Karma test runner into TeamCity and for that I'd like to give sys-engineers small script (powershell or whatever) that would:
从一些配置文件中获取所需的版本号(我想我可以把它作为注释放在
karma.conf.js中)
检查定义的 karma runner 版本是否安装在 npm 的全局存储库中
check if the defined version of karma runner installed in npm's global repo
如果不是，或者安装的版本比预期的旧:选择并安装正确的版本
if it's not, or the installed version is older than desired: pick up and install right version
运行它:karma start .Scripts-Testskarma.conf.js --reporters teamcity --single-run
所以我真正的问题是:如果安装了所需版本的软件包，如何检查脚本?".你应该检查一下，还是每次都调用 npm -g install 是安全的?
So my real question is: "how can one check in a script, if desired version of package installed?". Should you do the check, or it's safe to just call npm -g install everytime?
我不想总是检查和安装最新的可用版本，因为其他配置值可能会变得不兼容
推荐答案
要检查项目中的任何模块是否旧":
To check if any module in a project is 'old':
npm outdated
'outdated' 将检查 package.json 并查看 NPM 注册表中是否有更新的版本.
'outdated' will check every module defined in package.json and see if there is a newer version in the NPM registry.
例如，假设 xml2js 0.2.6(位于当前项目的 node_modules 中)已过时，因为存在较新的版本 (0.2.7).你会看到:
For example, say xml2js 0.2.6 (located in node_modules in the current project) is outdated because a newer version exists (0.2.7). You would see:
xml2js@0.2.7 node_modules/xml2js current=0.2.6
更新所有依赖项，如果您确信这是可取的:
To update all dependencies, if you are confident this is desirable:
npm update
或者，更新单个依赖项，例如 xml2js:
Or, to update a single dependency such as xml2js:
npm update xml2js
这篇关于如果需要 npm 检查和更新包的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
