我在哪里可以看到 deno 下载的包?

Where can I see deno downloaded packages?

我是 deno 的新手,目前正在探索 deno 中的最小可行项目。我想喜欢 npm,它将 npm 包下载到文件夹 node_modules 中,同样我想在目录中看到 deno 包 。在我当前的项目中,我没有看到任何下载的包。请建议我在哪里寻找 deno 包。如果我写 dep.ts 文件来提及所有 deno 包,我可以将相同的 deno 包用于其他一些项目吗?我的问题有点类似于 java 中 MavenGradle 处理的问题。这意味着我想知道 deno 是否在 OS 中维护一个文件夹,以便在许多项目中下载和使用所有包。我想检查 windows 10.

中包含 deno 包的目录

导入缓存在 $DENO_DIR

来自docs:

Deno caches remote imports in a special directory specified by the $DENO_DIR environmental variable. It defaults to the system's cache directory if $DENO_DIR is not specified. The next time you run the program, no downloads will be made. If the program hasn't changed, it won't be recompiled either. The default directory is:

  • On Linux/Redox: $XDG_CACHE_HOME/deno or $HOME/.cache/deno
  • On Windows: %LOCALAPPDATA%/deno (%LOCALAPPDATA% = FOLDERID_LocalAppData)
  • On macOS: $HOME/Library/Caches/deno If something fails, it falls back to $HOME/.deno

Relying on external servers is convenient for development but brittle in production. Production software should always bundle its dependencies. In Deno this is done by checking the $DENO_DIR into your source control system, and specifying that path as the $DENO_DIR environmental variable at runtime.


what is the deno command to install all the dependencies mentioned in dep.ts file

只安装 import dep.ts 在你的一个文件中 运行:

deno run index.js

您可以使用deno info获取远程模块的缓存目录。

样本输出(Windows 10):
> deno info
DENO_DIR location: "C:\Users\ford\AppData\Local\deno"
Remote modules cache: "C:\Users\ford\AppData\Local\deno\deps"
TypeScript compiler cache: "C:\Users\ford\AppData\Local\deno\gen"
要获取有关单个(远程)模块的信息:
deno info --unstable https://deno.land/std/fs/mod.ts # --unstable needed as of 1.0.3
示例输出:
local: C:\Users\ford\AppData\Local\deno\deps\https\deno.land4fe4a7...8f300799a073e0
type: TypeScript
compiled: C:\Users\ford\AppData\Local\deno\gen\https\deno.land\std\fs\mod.ts.js
map: C:\Users\ford\AppData\Local\deno\gen\https\deno.land\std\fs\mod.ts.js.map 
deps:
https://deno.land/std/fs/mod.ts
  ├─┬ https://deno.land/std/fs/empty_dir.ts
  ...

local:源文件本地路径(TS或JS)
compiled:编译源码的本地路径(.js,for TS only)
map:source map的本地路径(仅限TS)
deps: 源文件的依赖树