Encoder/decoder for percent-encoding (URL/URI encoding)

[hhromic]

Please describe your feature request.
(( First of all, thank you very much for developing yq. This is really a great swiss army knife for YAML! 💯 ))

It would be quite handy for yq to support percent-encoding (aka URL/URI encoding) as an encoder/decoder, similar to the existing @base64 encoder/decoder pair. For instance, jq supports this as a string formatter:

$ jq -n '{key:@uri "uri=\("some/value")"}'

{
  "key": "uri=some%2Fvalue"
}

This is specially handy when constructing URLs from dynamic values. A hypothetical example:

$ DB_PASSWORD='super/secret' yq -n '.dbconfig.dsn="mysql://user:" + (env(DB_PASSWORD) | @uri) + "@host:port/dbname"'

dbconfig:
  dsn: mysql://user:super%2Fsecret@host:port/dbname

Describe alternatives you've considered
Within yq, it doesn't seem to be possible to perform percent-encoding. Using other tools, jq supports encoding like shown above, therefore the current workaround is to use jq to encode the value and then pass it to yq to insert into a YAML document.

[hhromic]

Looks like Go has built-in batteries to encode/decode percent-encoding in net/url :)

• https://pkg.go.dev/net/url#QueryEscape
• https://pkg.go.dev/net/url#QueryUnescape

[mikefarah]

Nice find - should be pretty easy to add that in 👍🏼

[hhromic]

Wow, nice you already implemented this! 💯
Thanks a lot! I will give it a try as soon as this addition is released!

[mikefarah]

Released in v4.31.1 :)

[hhromic]

Just tested the released binary:

$ DB_PASSWORD='super/secret' yq -n '.dbconfig.dsn="mysql://user:" + (env(DB_PASSWORD) | @uri) + "@host:port/dbname"'
dbconfig:
  dsn: mysql://user:super%2Fsecret@host:port/dbname

Works exactly like proposed! :)
Thanks!