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denoland-deno/docs/tools/dependency_inspector.md
KrisChambers 1cd2267500
feat(info): Dependency count and sizes (#6786)
This commit changes "deno info" subcommand logic.

- Modules are no longer loaded into V8 isolate - analysis
  is done using ModuleGraph.
- Removed deno_core::Deps structure.
- Modules are no longer type-checked and transpiled - 
  "compiled" file is shown only if it is already available.
- Added number of unique dependencies for root module.
- Changed tree output:
  - file size is shown next to the dependency
  - repeated dependencies are marked with "*"
  - used less spaces in prefix to save terminal width
2020-09-07 15:59:47 +02:00

74 lines
4 KiB
Markdown

## Dependency Inspector
`deno info [URL]` will inspect ES module and all of its dependencies.
```shell
deno info https://deno.land/std@0.67.0/http/file_server.ts
Download https://deno.land/std@0.67.0/http/file_server.ts
...
local: /home/deno/.cache/deno/deps/https/deno.land/f57792e36f2dbf28b14a75e2372a479c6392780d4712d76698d5031f943c0020
type: TypeScript
compiled: /home/deno/.cache/deno/gen/https/deno.land/f57792e36f2dbf28b14a75e2372a479c6392780d4712d76698d5031f943c0020.js
deps: 23 unique (total 139.89KB)
https://deno.land/std@0.67.0/http/file_server.ts (10.49KB)
├─┬ https://deno.land/std@0.67.0/path/mod.ts (717B)
│ ├── https://deno.land/std@0.67.0/path/_constants.ts (2.35KB)
│ ├─┬ https://deno.land/std@0.67.0/path/win32.ts (27.36KB)
│ │ ├── https://deno.land/std@0.67.0/path/_interface.ts (657B)
│ │ ├── https://deno.land/std@0.67.0/path/_constants.ts *
│ │ ├─┬ https://deno.land/std@0.67.0/path/_util.ts (3.3KB)
│ │ │ ├── https://deno.land/std@0.67.0/path/_interface.ts *
│ │ │ └── https://deno.land/std@0.67.0/path/_constants.ts *
│ │ └── https://deno.land/std@0.67.0/_util/assert.ts (405B)
│ ├─┬ https://deno.land/std@0.67.0/path/posix.ts (12.67KB)
│ │ ├── https://deno.land/std@0.67.0/path/_interface.ts *
│ │ ├── https://deno.land/std@0.67.0/path/_constants.ts *
│ │ └── https://deno.land/std@0.67.0/path/_util.ts *
│ ├─┬ https://deno.land/std@0.67.0/path/common.ts (1.14KB)
│ │ └─┬ https://deno.land/std@0.67.0/path/separator.ts (264B)
│ │ └── https://deno.land/std@0.67.0/path/_constants.ts *
│ ├── https://deno.land/std@0.67.0/path/separator.ts *
│ ├── https://deno.land/std@0.67.0/path/_interface.ts *
│ └─┬ https://deno.land/std@0.67.0/path/glob.ts (8.12KB)
│ ├── https://deno.land/std@0.67.0/path/_constants.ts *
│ ├── https://deno.land/std@0.67.0/path/mod.ts *
│ └── https://deno.land/std@0.67.0/path/separator.ts *
├─┬ https://deno.land/std@0.67.0/http/server.ts (10.23KB)
│ ├── https://deno.land/std@0.67.0/encoding/utf8.ts (433B)
│ ├─┬ https://deno.land/std@0.67.0/io/bufio.ts (21.15KB)
│ │ ├── https://deno.land/std@0.67.0/bytes/mod.ts (4.34KB)
│ │ └── https://deno.land/std@0.67.0/_util/assert.ts *
│ ├── https://deno.land/std@0.67.0/_util/assert.ts *
│ ├─┬ https://deno.land/std@0.67.0/async/mod.ts (202B)
│ │ ├── https://deno.land/std@0.67.0/async/deferred.ts (1.03KB)
│ │ ├── https://deno.land/std@0.67.0/async/delay.ts (279B)
│ │ ├─┬ https://deno.land/std@0.67.0/async/mux_async_iterator.ts (1.98KB)
│ │ │ └── https://deno.land/std@0.67.0/async/deferred.ts *
│ │ └── https://deno.land/std@0.67.0/async/pool.ts (1.58KB)
│ └─┬ https://deno.land/std@0.67.0/http/_io.ts (11.25KB)
│ ├── https://deno.land/std@0.67.0/io/bufio.ts *
│ ├─┬ https://deno.land/std@0.67.0/textproto/mod.ts (4.52KB)
│ │ ├── https://deno.land/std@0.67.0/io/bufio.ts *
│ │ ├── https://deno.land/std@0.67.0/bytes/mod.ts *
│ │ └── https://deno.land/std@0.67.0/encoding/utf8.ts *
│ ├── https://deno.land/std@0.67.0/_util/assert.ts *
│ ├── https://deno.land/std@0.67.0/encoding/utf8.ts *
│ ├── https://deno.land/std@0.67.0/http/server.ts *
│ └── https://deno.land/std@0.67.0/http/http_status.ts (5.93KB)
├─┬ https://deno.land/std@0.67.0/flags/mod.ts (9.54KB)
│ └── https://deno.land/std@0.67.0/_util/assert.ts *
└── https://deno.land/std@0.67.0/_util/assert.ts *
```
Dependency inspector works with any local or remote ES modules.
## Cache location
`deno info` can be used to display information about cache location:
```shell
deno info
DENO_DIR location: "/Users/deno/Library/Caches/deno"
Remote modules cache: "/Users/deno/Library/Caches/deno/deps"
TypeScript compiler cache: "/Users/deno/Library/Caches/deno/gen"
```