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备稿计划: Deno.run 的局限 #121

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iugo opened this issue Sep 9, 2022 · 0 comments
Open

备稿计划: Deno.run 的局限 #121

iugo opened this issue Sep 9, 2022 · 0 comments

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@iugo
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iugo commented Sep 9, 2022 •
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Deno.run 可以以子进程的方式调用系统应用, 但是也存在一些局限.

cmd 参数中不支持使用变量. 比如我们直接运行 echo $ABC 可以, 但通过 Deno.run({cmd: ['echo', '$ABC']}) 则无法得到预期结果. deno 对字符串进行了特殊处理, 比如实际执行的是 echo \$ABC.

cmd 参数中不支持设置变量. 比如我们常见的 export ABC=1, 在 Deno.run 中不支持. 解决方法是通过 env 参数来设置环境变量.

另外, 当前版本 1.25.1 中, Deno.run 与 Deno.test 还有不兼容的问题. 具体会单独建 gist. https://gist.github.com/iugo/66cf24ad826734d611e4b348f4308adf
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