Real Vim ninjas count every keystroke - do you?

Pick a challenge, fire up Vim, and show us what you got.

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$ gem install vimgolf
$ vimgolf setup
$ vimgolf put 9v00674f1bfb00000000063d

YAML to dotenv

Convert this YAML config file to a .env file.

Start file

vimgolf:
  logging:
    level: INFO
app:
  postgres:
    host: !ENV {POSTGRES_HOST}
    port: !ENV {POSTGRES_PORT}
  pulsar:
    host: !ENV ${PULSAR_HOST}
    port: !ENV ${PULSAR_PORT}
    namespace: vimgolf
    topic: !ENV ${PULSAR_TOPIC}

End file

POSTGRES_HOST=
POSTGRES_PORT=
PULSAR_HOST=
PULSAR_PORT=
PULSAR_TOPIC=

View Diff

1,12c1,5
< vimgolf:
<   logging:
<     level: INFO
< app:
<   postgres:
<     host: !ENV {POSTGRES_HOST}
<     port: !ENV {POSTGRES_PORT}
<   pulsar:
<     host: !ENV ${PULSAR_HOST}
<     port: !ENV ${PULSAR_PORT}
<     namespace: vimgolf
<     topic: !ENV ${PULSAR_TOPIC}
---
> POSTGRES_HOST=
> POSTGRES_PORT=
> PULSAR_HOST=
> PULSAR_PORT=
> PULSAR_TOPIC=

Solutions by @winter-loo:

Created by: @iantalks Tweet

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Solutions by @winter-loo: