teepee allows you to generate data according to a template. Data is extracted from data structures available in JSON or YAML format, read from files or from standard input. This should make it easy to extract the needed data e.g. out of the output from some tool that provides you structured JSON or YAML text.

The official repository is on GitHub.

Installation

More on the code page!

curl -LO https://github.com/polettix/teepee/raw/master/bundle/teepee
#   wget https://github.com/polettix/teepee/raw/master/bundle/teepee
chmod +x teepee
sudo mv teepee /usr/local/bin

Last step might be unwanted or not possibleā€¦ just make sure you can call teepee in some easy way!

So What Can I Do?

More on the cheatsheet page!

# something about me
metacpan='http://api.metacpan.org/v0'
curl "$metacpan/author/POLETTIX" \
  | teepee -nT "Hi! I'm [% name %] <[% email.0 %]>."
# Hi! I'm Flavio Poletti <polet...pan.org>.

# for extracting multiple data, let's cache in a variable
me=$(curl "$metacpan/author/POLETTIX")
teepee -I "$me" -nT 'See my big face at [% gravatar_url %]?s=200'
# See my big face at http://www.gravatar.com/av...b57.png?s=200

# my favourite band
mbrz='http://musicbrainz.org/ws/2'
pjq=$(curl "$mbrz/artist?fmt=json&limit=1&query=Pearl%20Jam")
name=$(teepee -I "$pjq" -v artists.0.name)
country=$(teepee -I "$pjq" -v artists.0.country)
echo "$name rock from the $country"'!'
# Pearl Jam rock from the US!

# let's just isolate data about Pearl Jam from the query response
pj=$(teepee -I "$pjq" -F'YAML(V "artists.0")')
year=$(teepee -I "$pj" -v "'life-span'.begin")
city=$(teepee -I "$pj" -v "'begin-area'.name")
echo "they started from $city in $year"
# they started from Seattle in 1990

# we can also pretty-print, especially handy with compact JSON
ap='http://www.astro-phys.com/api/de406'
curl "$ap/coefficients?date=1972-11-9&bodies=mars"
# {"date": 2441630.5, "type": "chebyshev", "results": {"mars": ...
curl "$ap/coefficients?date=1972-11-9&bodies=mars" \
    | teepee -FYAML
# ---
# date: 2441630.5
# results:
#   mars:
#     coefficients:
#       -
#         - -221246363.667206
#         - 26761105.8067001
#         ...
#     end: 2441680.5
#     start: 2441616.5
# type: chebyshev
# unit: km

# or do the pretty-printing of a sub-section only
teepee -I "$pj" -F'YAML(V "aliases")'
# ---
# -
#   begin-date: ~
#   end-date: ~
#   locale: ~
#   name: 'Mookie Blaylock'
#   primary: ~
#   sort-name: 'Mookie Blaylock' type: ~

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