How to build azure pipeline tasks from https://github.com/microsoft/azure-pipelines-tasks locally and consume them in an on-prem Azure DevOps Server? - azure-devops

Question

So I cloned their repository, but how do I actually build the tasks?
Here is my scenario. We use Azure DevOps Server 2020 (on prem). All of our build pipelines run the Index Sources & Publish Symbols task
However, it has a bug https://github.com/microsoft/azure-pipelines-tasks/issues/14852. Luckily a fix was merged to master. However, we are not going to see it until it is propagated to the Azure DevOps Server edition and only All Mighty knows when it would happen.
So, I would like to build that task locally and upload to our Azure DevOps server. But I cannot find instructions on how to do it.
So, how can I build and consume it in our Azure DevOps Server?
EDIT 1
Tried to follow the procedure in https://github.com/microsoft/azure-pipelines-tasks/blob/master/ci/build-all-steps.yml, but it did not work.
The first step that seems relevant to me is https://github.com/microsoft/azure-pipelines-tasks/blob/6ab084f52e582370880127132d1c449634c9bfbc/ci/build-all-steps.yml#L39:
- script: |
cd ci
cd verifyMinAgentDemands
npm install
node index.js
displayName: Verify all min agent demands are valid
And it is fine:
C:\work\azure-pipelines-tasks\ci\verifyMinAgentDemands [master ≡]> npm install
npm WARN verifyminagentdemands#1.0.0 No description
npm WARN verifyminagentdemands#1.0.0 No repository field.
added 52 packages from 78 contributors and audited 52 packages in 1.743s
found 2 low severity vulnerabilities
run `npm audit fix` to fix them, or `npm audit` for details
C:\work\azure-pipelines-tasks\ci\verifyMinAgentDemands [master ≡]> node .\index.js
##vso[task.debug]agent.TempDirectory=undefined
##vso[task.debug]agent.workFolder=undefined
##vso[task.debug]loading inputs and endpoints
##vso[task.debug]loaded 0
##vso[task.debug]Agent.ProxyUrl=undefined
##vso[task.debug]Agent.CAInfo=undefined
##vso[task.debug]Agent.ClientCert=undefined
##vso[task.debug]Agent.SkipCertValidation=undefined
Verifying min agent demands.
Latest version of the Agent that's fully rolled out is 2.195.0.
The next step (https://github.com/microsoft/azure-pipelines-tasks/blob/6ab084f52e582370880127132d1c449634c9bfbc/ci/build-all-steps.yml#L47) seems to be relevant too:
- script: node make.js build --task "$(task_pattern)"
displayName: Build
condition: ne(variables['numTasks'], 0)
But:
C:\work\azure-pipelines-tasks [master ≡]> node make.js build --task PublishSymbolsV2
> prepending PATH C:\work\azure-pipelines-tasks\node_modules\.bin
tsc tool:
Version 2.3.4
C:\work\azure-pipelines-tasks\node_modules\.bin\tsc
npm tool:
6.14.12
C:\Program Files\nodejs\npm
------------------------------------------------------------
Building: PublishSymbolsV2
------------------------------------------------------------
> getting task externals
Downloading file: https://vstsagenttools.blob.core.windows.net/tools/symstore/2/symbol.zip
Could not use "nc", falling back to slower node.js method for sync requests.
C:\work\azure-pipelines-tasks\node_modules\sync-request\index.js:77
throw new Error(res.stderr.toString());
^
Error
at doRequestWith (C:\work\azure-pipelines-tasks\node_modules\sync-request\index.js:77:11)
at doRequest (C:\work\azure-pipelines-tasks\node_modules\sync-request\index.js:20:10)
at downloadFile (C:\work\azure-pipelines-tasks\make-util.js:411:22)
at downloadArchive (C:\work\azure-pipelines-tasks\make-util.js:451:27)
at C:\work\azure-pipelines-tasks\make-util.js:644:33
at Array.forEach (<anonymous>)
at getExternals (C:\work\azure-pipelines-tasks\make-util.js:639:25)
at C:\work\azure-pipelines-tasks\make.js:193:13
at Array.forEach (<anonymous>)
at Function.target.build (C:\work\azure-pipelines-tasks\make.js:158:14)
C:\work\azure-pipelines-tasks [master ≡]>
What is now?