fmt: respect prettierrc and prettierignore

[axetroy]

close #3276

Docs

https://prettier.io/docs/en/configuration.html

https://prettier.io/docs/en/ignore.html

Goal

• Respect prettierrc file by default
  • .prettierrc.json
  • .prettierrc.yaml
  • .prettierrc.yml
  • .prettierrc.js
  • .prettierrc.ts
  • prettier.config.js
  • prettier.config.ts
  • .prettierrc.toml
• Load the specified prettierrc file

./target/release/deno fmt *.ts --prettierrc=./path/to/.prettierrc.json

• Respect prettierignore file by default

./target/release/deno fmt *.ts --ignore-path=./path/to/.prettierignore

What's new?

1. add --prettierrc flag for deno fmt

with optional value: auto/disable/filepath.

auto: Auto detect prettier configuration file in current working dir.
disable: Disable load configuration file.
filepath: Load specified prettier configuration file. support .json/.toml/.js/.ts file

Defaults to auto

2. add --ignore-path flag for deno fmt

with optional value: auto/disable/filepath.

auto: Auto detect .pretierignore file in current working dir.
disable: Disable load .prettierignore file.
filepath: Load specified prettier ignore file.

Defaults to auto

Current deno fmt --help output

$ ./target/release/deno fmt --help
deno-fmt 
Auto-format JavaScript/TypeScript source code using Prettier

Automatically downloads Prettier dependencies on first run.

  deno fmt myfile1.ts myfile2.ts

USAGE:
    deno fmt [OPTIONS] <files>...

OPTIONS:
        --arrow-parens=<avoid|always>
            Include parentheses around a sole arrow function parameter. [possible values: avoid, always]

    -c, --config <FILE>                                  
            Load tsconfig.json configuration file

        --current-thread                                 
            Use tokio::runtime::current_thread

        --end-of-line=<auto|lf|crlf|cr>
            Which end of line characters to apply. [possible values: auto, lf, crlf, cr]

    -h, --help                                           
            Prints help information

        --ignore-path=<auto|disable|FILE>
            Path to a file containing patterns that describe files to ignore.
              auto: Auto detect .pretierignore file in current working dir.
              disable: Disable load .prettierignore file.
              FILE: Load specified prettier ignore file.
              [default: auto]
        --importmap <FILE>                               
            Load import map file
            Specification: https://wicg.github.io/import-maps/
            Examples: https://github.com/WICG/import-maps#the-import-map
        --jsx-bracket-same-line
            Put the > of a multi-line JSX element at the end of the last line
            instead of being alone on the next line (does not apply to self closing elements).
        --jsx-single-quote                               
            Use single quotes instead of double quotes in JSX.

        --lock <FILE>                                    
            Check the specified lock file

        --lock-write                                     
            Write lock file. Use with --lock.

    -L, --log-level <log-level>                          
            Set log level [possible values: debug, info]

        --no-bracket-spacing                             
            Print spaces between brackets in object literals.

        --no-semi                                        
            Print semicolons at the ends of statements.

        --prettierrc=<auto|disable|FILE>
            Specify the configuration file of the prettier.
              auto: Auto detect prettier configuration file in current working dir.
              disable: Disable load configuration file.
              FILE: Load specified prettier configuration file. support .json/.toml/.js/.ts file
              [default: auto]
        --print-width=<int>                              
            Specify the line length that the printer will wrap on.

        --prose-wrap=<always|never|preserve>             
            How to wrap prose. [possible values: always, never, preserve]

        --quote-props=<as-needed|consistent|preserve>
            Change when properties in objects are quoted. [possible values: as-needed, consistent, preserve]

    -r, --reload=<CACHE_BLACKLIST>                       
            Reload source code cache (recompile TypeScript)
                      --reload
                        Reload everything
                      --reload=https://deno.land/std
                        Reload all standard modules
                      --reload=https://deno.land/std/fs/utils.ts,https://deno.land/std/fmt/colors.ts
                        Reloads specific modules
        --seed <NUMBER>                                  
            Seed Math.random()

        --single-quote                                   
            Use single quotes instead of double quotes.

        --stdout                                         
            Output formated code to stdout

        --tab-width=<int>                                
            Specify the number of spaces per indentation-level.

        --trailing-comma                                 
            Print trailing commas wherever possible when multi-line.

        --use-tabs                                       
            Indent lines with tabs instead of spaces.

        --v8-flags=<v8-flags>                            
            Set V8 command line options

        --v8-options                                     
            Print V8 command line options


ARGS:
    <files>...    
            

[axetroy]

There are currently no libraries for yml parser in std.

[axetroy]

/cc @ry I think it is ready for review.

[axetroy]

ref #3355

[ry]

LGTM

[oscrx]

A small headsup for people ending up here while searching for a way to modify deno fmt behaviour. Prettier seems to no longer be used: #3820