allow using none statements in bicepparam files at build-params command

[polatengin]

When

• there are multiple projects with a very similar infrastructure needs (usually encountered in software shops)
• there are multiple layers in the same project with very similar infrastructure needs (usually encountered in multi-tenant softwares)

There should be multiple .bicep files (per project, per layer, etc.) and multiple .bicepparam files pairing with .bicep files (with using {filename}.bicep statements in .bicepparam files)

When az deployment group create --resource-group $rgname --name $rgname --template-file ./main.bicep --parameters ./main.bicepparam command executed, az cli downstreams the parameters to bicep build-params command.

Since the .bicep and .bicepparam files are paired with the using statement in .bicepparam file, it's not possible to re-use the same .bicepparam file with multiple deployments.

This PR relaxes the check in the build-params command that requires the using statement in the .bicepparam file points to the same .bicep file as the build-params command arguments

So, if the .bicepparam file has a using none statement, it'll be possible to use the same .bicepparam file in multiple deployments.

---

Testing the PR

// main.bicep
param unusedParam int

// main.bicepparam
using none
param unusedParam = 3

When you run the following command;

dotnet run -- build-params /home/enpolat/p/bicep/main.bicepparam --bicep-file /home/enpolat/p/bicep/main.bicep --stdout

It fails with the following error message; Bicep file ./main.bicep provided with --bicep-file can only be used if the Bicep parameters "using" declaration refers to a Bicep file on disk.

With the changes in this PR, same command runs successfully and builds the main.bicepparam file

BuildParamsCommandTests

I also added a test (https://github.com/Azure/bicep/pull/15107/files#diff-30f70729cbd5bcbfb69d4edd8ff3fa9bee94690e92f5e3e86ac9a7eb98b3f550R431) to ensure the build-params command successfully builds given .bicepparam file when there is a using none statement instead of a using {filename}.bicep statement in the .bicepparam file.

---

Microsoft Reviewers: Open in CodeFlow

[github-actions]

Test this change out locally with the following install scripts (Action run 11356153636)

VSCode

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-vsix.sh) --run-id 11356153636

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-vsix.ps1) } -RunId 11356153636"

Azure CLI

• Mac/Linux

  bash <(curl -Ls https://aka.ms/bicep/nightly-cli.sh) --run-id 11356153636

• Windows

  iex "& { $(irm https://aka.ms/bicep/nightly-cli.ps1) } -RunId 11356153636"

[github-actions]

Dotnet Test Results

    72 files   -     36      72 suites   - 36   29m 14s ⏱️ - 12m 6s
11 358 tests  -     24  11 358 ✅  -     24  0 💤 ±0  0 ❌ ±0 
26 447 runs   - 13 216  26 447 ✅  - 13 216  0 💤 ±0  0 ❌ ±0 

Results for commit 67cafd2. ± Comparison against base commit e7884b8.

♻️ This comment has been updated with latest results.