Using jq in Gitlab CI yaml - shell

Question

I'm having a json file sample.json. Below is the snippet from the sample.json -
{
"AddOnModules": {
"Description": "add on modules",
"Type": "Array",
"AllowedValues": [
"a",
"b",
"c"
],
"value": []
}
}
I'm trying to provide value to AddOnModules through git ci variable (parameter-value) at runtime while running the pipeline. The following is the snippet of the pipeline -
stages:
- deploy
# Job to deploy for development
dev-deploy:
variables:
before_script:
- apk add jq
image: python:3.7.4-alpine3.9
script:
- tmp=$(mktemp)
- jq -r --arg add_on_modules "$add_on_modules" '.AddOnModules.value |= .+ [$add_on_modules] ' sample.json > "$tmp" && mv "$tmp" sample.json
- cat sample.json
stage: deploy
tags:
- docker
- linux
only:
variables:
- $stage =~ /^deploy$/ && $deployment_mode =~ /^dev$/
I'm giving the value of variable add_on_modules as "a","b" through git ci while running the pipeline. On performing cat sample.json, it's observed to be -
{
"AddOnModules": {
"Description": "add on modules",
"Type": "Array",
"AllowedValues": [
"a",
"b",
"c"
],
"value": [ "\"a\",\"b\""]
}
}
The extra double quotes are getting the prepended and appended while the existing ones are escaped.
I want output something like -
{
"AddOnModules": {
"Description": "add on modules",
"Type": "Array",
"AllowedValues": [
"a",
"b",
"c"
],
"value": ["a","b"]
}
}
Looks like I'm missing something with jq -
- jq -r --arg add_on_modules "$add_on_modules" '.AddOnModules.value |= .+ [$add_on_modules] ' sample.json > "$tmp" && mv "$tmp" sample.json
Tried with -r/--raw-output flag with jq but no success. Any suggestions on how to solve this?
This is how I'm running the pipeline -
Pipeline run

Answer 1

If $add_on_modules is ["a","b"]
If you can set add_on_modules to the textual representation of a JSON array, then you would use --argjson, like so:
add_on_modules='["a","b"]'
jq -r --argjson add_on_modules "$add_on_modules" '
.AddOnModules.value += $add_on_modules
' sample.json
If $add_on_modules is the string "a","b"
add_on_modules='"a","b"'
jq -r --arg add_on_modules "$add_on_modules" '
.AddOnModules.value += ($add_on_modules|split(",")|map(fromjson))
' sample.json