Store Codeship build ID in variable using GREP

Question

I am trying to use a grep to search a JSON output, I used a curl command to return the data from a particular codeship build and I want to use GREP to store said ID value in a variable. However after I run the command and try to echo out the value of the variable its blank.

Below are the commands:

export API_KEY=abc123
export PROJECT_ID=123456
export LAST_BUILD_ID=$(curl -s https://codeship.com/api/v1/projects/$PROJECT_ID.json?api_key=$API_KEY | grep -Eo '"builds":\[{"id":\d+' | grep -Eo --color=never '\d+' | tail -1)
export LAST_BUILD_URL=$(echo "https://codeship.com/api/v1/builds/$LAST_BUILD_ID/restart.json?api_key=$API_KEY")

Gilles Quénot · Answer 1 · 2016-09-27T20:53:15.960

0

My response : never use grep nor regex to parse json.

Instead, use a proper json parser.

In shell, take a look to jq.

Example, adapt it a bit :

#!/bin/bash

API_KEY=abc123
PROJECT_ID=123456
html=$(curl -s https://codeship.com/api/v1/projects/$PROJECT_ID.json?api_key=$API_KEY)
LAST_BUILD_ID=$(jq '.builds | .[] | .never' <<< "$html") # just guessing
LAST_BUILD_URL=$(echo "https://codeship.com/api/v1/builds/$LAST_BUILD_ID/restart.json?api_key=$API_KEY")

Note

If you provide the JSON, I will be able to be more specific with the jq command

edited Sep 27 '16 at 20:53

answered Sep 27 '16 at 20:47

Gilles Quénot

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Hi Thanks for the answer, but I already tried jq, but it didn't work so well for me seeing as I'm actually using it in a Lambda function, do you have any idea how to use jq in a Lambda function? – G. Bannister Sep 27 '16 at 20:54
Can yo define the level of Lambda ? Do you mean the AWS service or a inline python or anything else ? – Gilles Quénot Sep 27 '16 at 21:14
It was the AWS service – G. Bannister Sep 27 '16 at 22:53

Store Codeship build ID in variable using GREP

1 Answers1

Note