Add literal from content of a file with newline

[saadlu]

Hi helpful ppl,

Say I want create the following yaml

a: |
  this is line 1
  this is line 2

where them lines are coming from a file, file.txt

  this is line 1
  this is line 2

is this possible?

[saadlu]

This is what I can come up with for now. Using jq in the process

echo '{"a":null}' | jq --arg e "$(cat file.txt)" '.a = $e' |  yq e -P -

I am sure this can be improved upon :)

[mikefarah]

content=$(cat file.txt) yq e -n '.a = strenv(content)'

[saadlu]

nice one. I tried env operator, but did not read about strenv.

(now I read the manual ;P)

[mikefarah]

And if you want to keep the trailing newlines then:

content="$(cat file.txt)
" yq e -n '.a = strenv(content)'

(Note that this is a two line command)

[BenCornwell1]

I was having trouble with this issue, merging into an existing yaml. I had to paste a PEM into a Kubernetes CR. It worked fine in yq3.

I originally had this:

export message=$(cat multiline.txt) yq eval -i '.test.message = env(message)' test.yaml

Using the export command. It worked, but it put my multi-line content all on one line, rather than a yaml multi-line block. As above - what worked was this:

message=$(cat multiline.txt) yq eval -i '.test.message = strenv(message)' test.yaml

Can I suggest this goes in the documentation?