feat(manager/cake): Take nuget.config into account for registryUrls of nuget packages

[papauorg]

Changes

When using nuget packages in cake build files, the nuget.config file (if present) is not taken into account when trying to retrieve new package versions. The nuget manager does this correctly. This PR extends the cake manager so it uses the same mechanism as the nuget manager to honor the nuget.config file.

After the change, the registryUrls for nuget packages should be correctly set according to the nuget.config.

Context

Please select one of the following:

• This closes an existing Issue, Closes: #
• This doesn't close an Issue, but I accept the risk that this PR may be closed if maintainers disagree with its opening or implementation

There is a discussion that also mentions this here: #33883

AI assistance disclosure

Did you use AI tools to create any part of this pull request?

Please select one option and, if yes, briefly describe how AI was used (e.g., code, tests, docs) and which tool(s) you used.

• No — I did not use AI for this contribution.
• Yes — minimal assistance (e.g., IDE autocomplete, small code completions, grammar fixes).
• Yes — substantive assistance (AI-generated non‑trivial portions of code, tests, or documentation).
• Yes — other (please describe):

Documentation (please check one with an [x])

• I have updated the documentation, or
• No documentation update is required

How I've tested my work (please select one)

I have verified these changes via:

• Code inspection only, or
• Newly added/modified unit tests, or
• No unit tests, but ran on a real repository, or
• Both unit tests + ran on a real repository

The new unit tests make sure the mechanism of the nuget manager is also called in the cake manager.

I ran this command to see if the nuget.config was honored:

LOG_LEVEL=debug pnpm start papauorg/renovate-cakebuild --dry-run=full --token=MY_GITHUB_TOKEN

Here is the log (I cut it to the relevant parts)
You can see that the contents of the nuget.config are used. In the log there are errors because the versions of the packages can not be determined - this is expected because the alternative nuget registry is made up and not available.

> renovate@0.0.0-semantic-release prestart /workspaces/renovate
> run-s 'generate:*'


> renovate@0.0.0-semantic-release generate:imports /workspaces/renovate
> node tools/generate-imports.mjs


> renovate@0.0.0-semantic-release start /workspaces/renovate
> node lib/renovate.ts papauorg/renovate-cakebuild --dry-run=full --token=MY_GITHUB_TOKEN

 INFO: Renovate started
       "renovateVersion": "0.0.0-semantic-release"
/*snipped*/
DEBUG: Setting current branch to main (repository=papauorg/renovate-cakebuild)
DEBUG: latest commit (repository=papauorg/renovate-cakebuild)
       "branchName": "main",
       "latestCommitDate": "2026-02-27T08:01:38.000Z",
       "sha": "e416bb7f79fac66c1dcba4b3e76ee07ddaf791cb"
/* snipped */
DEBUG: Matched 1 file(s) for manager renovate-config-presets: renovate.json (repository=papauorg/renovate-cakebuild)
DEBUG: Found NuGet.config at nuget.config (repository=papauorg/renovate-cakebuild)
DEBUG: clearing registry URLs (repository=papauorg/renovate-cakebuild)
DEBUG: Adding registry URL https://some.third-party.url/nuget/Default/v3/index.json (repository=papauorg/renovate-cakebuild)
       "registryUrl": "https://some.third-party.url/nuget/Default/v3/index.json",
       "sourceMappedPackagePatterns": ["*"]
DEBUG: manager extract durations (ms) (repository=papauorg/renovate-cakebuild)
       "managers": {"cake": 14, "renovate-config-presets": 3}
DEBUG: Found cake package files (repository=papauorg/renovate-cakebuild)
DEBUG: Found 1 package file(s) (repository=papauorg/renovate-cakebuild)
 INFO: Dependency extraction complete (repository=papauorg/renovate-cakebuild, baseBranch=main)
       "stats": {
         "managers": {"cake": {"fileCount": 1, "depCount": 3}},
         "total": {"fileCount": 1, "depCount": 3}
       }
DEBUG: hostRules: no authentication for some.third-party.url (repository=papauorg/renovate-cakebuild)
DEBUG: Using queue: host=some.third-party.url, concurrency=16 (repository=papauorg/renovate-cakebuild)
DEBUG: GET https://some.third-party.url/nuget/Default/v3/index.json = (code=ENOTFOUND, statusCode=-1 retryCount=2, duration=6) (repository=papauorg/renovate-cakebuild)
DEBUG: nuget registry failure: can't get RegistrationsBaseUrl (repository=papauorg/renovate-cakebuild)
       "err": {
         "name": "RequestError",
         "code": "ENOTFOUND",
         "timings": {
           "start": 1772179337355,
           "socket": 1772179337355,
           "lookup": 1772179337360,
           "error": 1772179337361,
           "phases": {"wait": 0, "dns": 5, "total": 6}
         },
         "options": {
           "headers": {
             "user-agent": "Renovate/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
             "accept": "application/json",
             "accept-encoding": "gzip, deflate, br, zstd"
           },
           "url": "https://some.third-party.url/nuget/Default/v3/index.json",
           "hostType": "nuget",
           "username": "",
           "password": "",
           "method": "GET",
           "http2": false
         },
         "message": "getaddrinfo ENOTFOUND some.third-party.url",
         "stack": "RequestError: getaddrinfo ENOTFOUND some.third-party.url\n    at ClientRequest.<anonymous> (file:///workspaces/renovate/node_modules/.pnpm/got@14.6.6/node_modules/got/dist/source/core/index.js:868:107)\n    at Object.onceWrapper (node:events:623:26)\n    at ClientRequest.emit (node:events:520:35)\n    at ClientRequest.emit (node:domain:489:12)\n    at emitErrorEvent (node:_http_client:108:11)\n    at TLSSocket.socketErrorListener (node:_http_client:575:5)\n    at TLSSocket.emit (node:events:508:28)\n    at TLSSocket.emit (node:domain:489:12)\n    at emitErrorNT (node:internal/streams/destroy:170:8)\n    at emitErrorCloseNT (node:internal/streams/destroy:129:3)\n    at processTicksAndRejections (node:internal/process/task_queues:89:21)\n    at GetAddrInfoReqWrap.onlookupall [as oncomplete] (node:dns:122:26)"
       },
       "url": "https://some.third-party.url/nuget/Default/v3/index.json",
       "servicesIndexRaw": undefined
DEBUG: Failed to look up nuget package Octopus.DotNet.Cli (repository=papauorg/renovate-cakebuild, packageFile=build.cs, dependency=Octopus.DotNet.Cli)
DEBUG: GET https://some.third-party.url/nuget/Default/v3/index.json = (code=ENOTFOUND, statusCode=-1 retryCount=2, duration=6) (repository=papauorg/renovate-cakebuild)
DEBUG: nuget registry failure: can't get RegistrationsBaseUrl (repository=papauorg/renovate-cakebuild)
       "err": {
         "name": "RequestError",
         "code": "ENOTFOUND",
         "timings": {
           "start": 1772179337435,
           "socket": 1772179337436,
           "lookup": 1772179337440,
           "error": 1772179337441,
           "phases": {"wait": 1, "dns": 4, "total": 6}
         },
         "options": {
           "headers": {
             "user-agent": "Renovate/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
             "accept": "application/json",
             "accept-encoding": "gzip, deflate, br, zstd"
           },
           "url": "https://some.third-party.url/nuget/Default/v3/index.json",
           "hostType": "nuget",
           "username": "",
           "password": "",
           "method": "GET",
           "http2": false
         },
         "message": "getaddrinfo ENOTFOUND some.third-party.url",
         "stack": "RequestError: getaddrinfo ENOTFOUND some.third-party.url\n    at ClientRequest.<anonymous> (file:///workspaces/renovate/node_modules/.pnpm/got@14.6.6/node_modules/got/dist/source/core/index.js:868:107)\n    at Object.onceWrapper (node:events:623:26)\n    at ClientRequest.emit (node:events:520:35)\n    at ClientRequest.emit (node:domain:489:12)\n    at emitErrorEvent (node:_http_client:108:11)\n    at TLSSocket.socketErrorListener (node:_http_client:575:5)\n    at TLSSocket.emit (node:events:508:28)\n    at TLSSocket.emit (node:domain:489:12)\n    at emitErrorNT (node:internal/streams/destroy:170:8)\n    at emitErrorCloseNT (node:internal/streams/destroy:129:3)\n    at processTicksAndRejections (node:internal/process/task_queues:89:21)\n    at GetAddrInfoReqWrap.onlookupall [as oncomplete] (node:dns:122:26)"
       },
       "url": "https://some.third-party.url/nuget/Default/v3/index.json",
       "servicesIndexRaw": undefined
DEBUG: Failed to look up nuget package GitVersion.Tool (repository=papauorg/renovate-cakebuild, packageFile=build.cs, dependency=GitVersion.Tool)
DEBUG: GET https://some.third-party.url/nuget/Default/v3/index.json = (code=ENOTFOUND, statusCode=-1 retryCount=2, duration=73) (repository=papauorg/renovate-cakebuild)
DEBUG: nuget registry failure: can't get RegistrationsBaseUrl (repository=papauorg/renovate-cakebuild)
       "err": {
         "name": "RequestError",
         "code": "ENOTFOUND",
         "timings": {
           "start": 1772179337467,
           "socket": 1772179337468,
           "lookup": 1772179337540,
           "error": 1772179337540,
           "phases": {"wait": 1, "dns": 72, "total": 73}
         },
         "options": {
           "headers": {
             "user-agent": "Renovate/0.0.0-semantic-release (https://github.com/renovatebot/renovate)",
             "accept": "application/json",
             "accept-encoding": "gzip, deflate, br, zstd"
           },
           "url": "https://some.third-party.url/nuget/Default/v3/index.json",
           "hostType": "nuget",
           "username": "",
           "password": "",
           "method": "GET",
           "http2": false
         },
         "message": "getaddrinfo ENOTFOUND some.third-party.url",
         "stack": "RequestError: getaddrinfo ENOTFOUND some.third-party.url\n    at ClientRequest.<anonymous> (file:///workspaces/renovate/node_modules/.pnpm/got@14.6.6/node_modules/got/dist/source/core/index.js:868:107)\n    at Object.onceWrapper (node:events:623:26)\n    at ClientRequest.emit (node:events:520:35)\n    at ClientRequest.emit (node:domain:489:12)\n    at emitErrorEvent (node:_http_client:108:11)\n    at TLSSocket.socketErrorListener (node:_http_client:575:5)\n    at TLSSocket.emit (node:events:508:28)\n    at TLSSocket.emit (node:domain:489:12)\n    at emitErrorNT (node:internal/streams/destroy:170:8)\n    at emitErrorCloseNT (node:internal/streams/destroy:129:3)\n    at processTicksAndRejections (node:internal/process/task_queues:89:21)\n    at GetAddrInfoReqWrap.onlookupall [as oncomplete] (node:dns:122:26)"
       },
       "url": "https://some.third-party.url/nuget/Default/v3/index.json",
       "servicesIndexRaw": undefined
DEBUG: Failed to look up nuget package dotnet-trace (repository=papauorg/renovate-cakebuild, packageFile=build.cs, dependency=dotnet-trace)
DEBUG: PackageFiles.add() - Package file saved for base branch (repository=papauorg/renovate-cakebuild, baseBranch=main)
DEBUG: Package releases lookups complete (repository=papauorg/renovate-cakebuild, baseBranch=main)
DEBUG: Repository libYears (repository=papauorg/renovate-cakebuild)
       "libYears": {"managers": {"cake": 0}, "total": 0},
       "dependencyStatus": {"outdated": 0, "total": 3}
DEBUG: branchifyUpgrades (repository=papauorg/renovate-cakebuild)
DEBUG: detectSemanticCommits() (repository=papauorg/renovate-cakebuild)
DEBUG: getCommitMessages (repository=papauorg/renovate-cakebuild)
DEBUG: semanticCommits: detected "unknown" (repository=papauorg/renovate-cakebuild)
DEBUG: semanticCommits: disabled (repository=papauorg/renovate-cakebuild)
DEBUG: 0 flattened updates found:  (repository=papauorg/renovate-cakebuild)
DEBUG: Returning 0 branch(es) (repository=papauorg/renovate-cakebuild)
DEBUG: config.repoIsOnboarded=true (repository=papauorg/renovate-cakebuild)
DEBUG: packageFiles with updates (repository=papauorg/renovate-cakebuild, baseBranch=main)
       "config": {
         "cake": [
           {
             "deps": [
               {
                 "datasource": "nuget",
                 "depName": "GitVersion.Tool",
                 "currentValue": "6.5.0",
                 "registryUrls": [
                   "https://some.third-party.url/nuget/Default/v3/index.json"
                 ],
                 "updates": [],
                 "packageName": "GitVersion.Tool",
                 "versioning": "nuget",
                 "warnings": [
                   {
                     "topic": "GitVersion.Tool",
                     "message": "Failed to look up nuget package GitVersion.Tool"
                   }
                 ]
               },
               {
                 "datasource": "nuget",
                 "depName": "dotnet-trace",
                 "currentValue": "9.0.621003",
                 "registryUrls": [
                   "https://some.third-party.url/nuget/Default/v3/index.json"
                 ],
                 "updates": [],
                 "packageName": "dotnet-trace",
                 "versioning": "nuget",
                 "warnings": [
                   {
                     "topic": "dotnet-trace",
                     "message": "Failed to look up nuget package dotnet-trace"
                   }
                 ]
               },
               {
                 "datasource": "nuget",
                 "depName": "Octopus.DotNet.Cli",
                 "currentValue": "9.1.6",
                 "registryUrls": [
                   "https://some.third-party.url/nuget/Default/v3/index.json"
                 ],
                 "updates": [],
                 "packageName": "Octopus.DotNet.Cli",
                 "versioning": "nuget",
                 "warnings": [
                   {
                     "topic": "Octopus.DotNet.Cli",
                     "message": "Failed to look up nuget package Octopus.DotNet.Cli"
                   }
                 ]
               }
             ],
             "packageFile": "build.cs"
           }
         ]
       }
/*snipped*/

[viceice]

see comment

[RahulGautamSingh]

The two new tests (lines 124-148) only check that applyRegistries was called, but they mock it to do nothing. There's no test showing what happens when a nuget.config actually provides registry URLs and those URLs end up on the dependencies.

[papauorg]

The two new tests (lines 124-148) only check that applyRegistries was called, but they mock it to do nothing. There's no test showing what happens when a nuget.config actually provides registry URLs and those URLs end up on the dependencies.

Yes, that test is in the main nuget manager. I did not want to repeat it, just make sure the nuget.config is taken into account by using the applyRegistires method.

[github-actions]

🎉 This PR is included in version 43.130.0 🎉

The release is available on:

• GitHub release
• 43.130.0

Your semantic-release bot 📦🚀