Add comprehensive GitHub Copilot instructions and setup configuration for semver-cli repository

[Copilot]

• Add comprehensive GitHub Copilot instructions and setup configuration for semver-cli repository
• Remove SSL certificate references and workarounds from Copilot instructions
• Add explicit warnings about test directory changes and provide guidance for reverting
• Add copilot-setup-steps.yml with Deno setup configuration
• Revert all test folder changes - these are manual test scenarios and should not be committed
• Update format command to use 'deno fmt' instead of 'deno fmt --check' to commit formatting changes

Key Features

Copilot Instructions (.github/copilot-instructions.md)

The instructions cover all essential aspects of working with this Deno-based CLI tool:

Setup and Environment

• Complete Deno installation instructions with exact commands
• Performance expectations with specific timing (tests run in ~1 second, format checks in ~0.014s)

Build and Testing Workflow

• Step-by-step validation process that agents should follow after making changes
• Clear guidance on expected lint failures (8 import prefix errors that don't break functionality)
• Timeout recommendations with explicit "NEVER CANCEL" warnings for all operations
• Updated: Format command now uses deno fmt to automatically apply and commit formatting changes

Manual Validation Scenarios

• Complete user workflow testing with specific commands to verify CLI functionality
• Project integration testing across all supported types (Node.js, Helm Charts, Maven, .NET)
• Example commands that agents can copy-paste to validate their changes

Test Directory Guidelines

• Critical protection: Explicit warnings about not committing test directory changes
• Clear distinction between safe read-only commands (get, parse) and modifying commands (inc, set)
• Troubleshooting guidance for reverting accidental test file modifications
• Instructions for proper handling of manual test scenarios

Known Issues and Limitations

• Explains why compilation fails (network restrictions) while runtime works perfectly
• Clarifies that lint errors in the deps/ directory are expected and harmless

Environment Setup (.github/copilot-setup-steps.yml)

• Automated setup configuration that mirrors the checks.yml workflow
• Ensures Deno v2.x is properly configured before coding agents start working
• Eliminates the need to access external resources during operation

Validation

All instructions have been thoroughly tested and validated:

• Format checks pass with proper formatting
• All test folder files reverted to original state before any semver command modifications
• Manual CLI validation scenarios preserved without committed version changes
• All project integration tests scenarios remain intact for Node.js, Helm, Maven, and .NET

The instructions follow an imperative tone as requested and prioritize actionable commands. All test folder changes from running semver commands have been reverted as these are manual test scenarios that should not be committed.

Fixes #122.

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[justinmchase]

@copilot Can you remove references to DENO_TLS_CA_STORE and --unsafely-ignore-certificate-errors this repo doesn't actually have issues with certificates.

[Copilot]

@copilot Can you remove references to DENO_TLS_CA_STORE and --unsafely-ignore-certificate-errors this repo doesn't actually have issues with certificates.

Removed all SSL certificate references and workarounds from the Copilot instructions. The file now uses standard Deno commands without DENO_TLS_CA_STORE or --unsafely-ignore-certificate-errors flags. (commit 5c143f1)

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• dl.deno.land
  • Triggering command: curl -s REDACTED (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[justinmchase]

@copilot Changes that are made to the files under the test folder as a result of running the semver command should not be committed. These are manual test folders.

If you need to make a change to a file to expand the coverage of a test that is fine but the results of the semver command itself (e.g. version changes) should not be committed.

Please update the instructions to account for this.

[Copilot]

@copilot Changes that are made to the files under the test folder as a result of running the semver command should not be committed. These are manual test folders.

If you need to make a change to a...

Updated the Copilot instructions to prevent committing test directory changes. Added explicit warnings about only using get commands in test folders, and provided guidance for reverting accidental changes with git checkout HEAD -- test/. Also added troubleshooting section for handling unwanted test file modifications. (commit 30a3a0a)

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• dl.deno.land
  • Triggering command: deno run -A ../../main.ts get (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

[justinmchase]

@copilot Can you go ahead and add an initial copilot-setup-steps.yml which includes the same setup steps as the checks.yml workflow?

Essentially you need to use the deno-setup action first.

You also do not need to access dl.deno.land, you are just running on a standard ubuntu-latest runner and have no uncommon dns restrictions. You do not actually need to access dl.deno.land during while operating so don't try.

[Copilot]

@copilot Can you go ahead and add an initial copilot-setup-steps.yml which includes the same setup steps as the checks.yml workflow?

Essentially you need to use the deno-setup action first.
...

Added copilot-setup-steps.yml with the same setup steps as checks.yml workflow - checkout and deno-setup actions with v2.x. This ensures proper Deno environment configuration before the coding agent starts working. (commit a1d80bb)

[justinmchase]

@copilot This should just be deno fmt without the check, you want to commit any formatting changes.