jq - change multiple values within a select object.md

Query: jq: change multiple values within a select object

(jump to the answer)

I have an array of JSON objects, and I am trying change the name and version on the object of a given @type, with the following input

[
 {
    "name": "oldname",
    "version": "oldversion",
    "@type": "Project"
 },
 {
    "name": "bomname",
    "version": "bomversion",
    "@type": "BOM"
 },
 {
    "name": "componentname",
    "version": "componentversion",
    "@type": "Component"
 }
]

I found many examples for changing a single value, and I can successfully do this by chaining multiple select statements together.

$ cat original.json | jq '[ .[] | (select(.["@type"] == "Project") | .name ) = "newname" | (select(.["@type"] == "Project") | .version ) = "newversion ] ' > renamed.json

But I was hoping I could condense this so I only have perform the select once to change both values.

A:

Using jtc the query is easy to accomplish - find the record and update with the required entries:

bash $ <original.json jtc -w'[@type]:<Project>[-1]' -mu'{"name":"newname","version":"newversion"}'
[
   {
      "@type": "Project",
      "name": "newname",
      "version": "newversion"
   },
   {
      "@type": "BOM",
      "name": "bomname",
      "version": "bomversion"
   },
   {
      "@type": "Component",
      "name": "componentname",
      "version": "componentversion"
   }
]
bash $